JAA Test Prep 050 - Meteorology Edition 2008 050-01 THE ATMOSPHERE 1 2008 AVIATIONEXAM.com 8808 (A) 8814 (B) 8817 (A) 8876 (D) 8889 (C) 10028 (D) 10050 (A) 10055 (A) 10061 (A) 10102 (B) 10753 (D) 10804 (A) 10846 (C) 10851 (A) 10855 (D) 10896 (D) 050-01-01 Composition, extent, vertical division 8808. (AIR: atpl; HELI: atpl) Which is true of the temperature at the tropopause? A) It is higher in polar regions than in equatorial regions. B) It is higher in equatorial regions than in polar regions. C) It is highest in middle latitudes. D) There is no significant difference with change of latitude. 8814. (all) The troposphere is the: A) part of the atmosphere above the stratosphere. B) part of the atmosphere below the tropopause. C) boundary between the mesosphere and thermosphere. D) boundary between the stratosphere and the mesosphere. 8817. (all) What is the boundary layer between troposphere and stratosphere called? A) Tropopause B) Ionosphere C) Stratosphere D) Atmosphere 8876. (all) The tropopause is a level at which: A) vertical currents are strongest. B) water vapour content is greatest. C) pressure remains constant. D) temperature ceases to fall with increasing height. 8889. (AIR: atpl; HELI: atpl) The tropopause is lower: A) south of the equator than north of it. B) in summer than winter in moderate latitudes. C) over the North Pole than over the equator. D) over the equator than over the South Pole. 10028. (all) Advection is: A) the same as convection. B) vertical motion of air. C) the same as subsidence. D) horizontal motion of air. 10050. (all) What is the approximate composition of the dry air by volume in the troposphere? A) 21% oxygen, 78% nitrogen, and the rest other gasses. B) 10% oxygen, 89% nitrogen, and the rest other gasses. C) 88% oxygen, 9% nitrogen, and the rest other gasses. D) 50% oxygen, 40% nitrogen, and the rest other gasses. 10055. (all) In which layer is most of the atmospheric humidity concentrated? A) TroposphereB) Tropopause C) Stratosphere D) Stratopause 10061. (AIR: atpl; HELI: atpl) The thickness of the troposphere varies with: A) latitude. B) longitude. C) rotation of the earth. D) the wind. 10102. (AIR: atpl; HELI: atpl) Going from the equator to the north pole, the altitude of the tropopause: A) increases and its temperature increases. B) decreases and its temperature increases. C) increases and its temperature decreases. D) decreases and its temperature decreases. 10753. (AIR: atpl; HELI: atpl) In the mid-latitudes the stratosphere extends on an average from: A) 85 to more than 200 km. B) 0 to 11 km. C) 50 to 85 km. D) 11 to 50 km. 10804. (all) Which layer of the atmosphere contains more than 90 per cent of all water vapour? A) Troposphere. B) Lower stratosphere. C) Upper stratosphere. D) Ionosphere. 10846. (AIR: atpl; HELI: atpl) The average height of the tropopause at 50N is about: A) 14 km B) 8 km C) 11 km D) 16 km 10851. (all) The troposphere: A) has a greater vertical extent above the equator than above the poles. B) contains all oxygen of the stratosphere. C) is the separation layer between the stratosphere and atmosphere. D) reaches the same height at all latitudes. 10855. (AIR: atpl; HELI: atpl) How does the height of the tropopause normally vary with latitude in the northern hemisphere? A) It remains constant throughout the year. B) It remains constant from north to south. C) It increases from south to north. D) It decreases from south to north. 10896. (AIR: atpl; HELI: atpl) What, approximately, is the average height of the tropopause over the equator? A) 40 km B) 8 km C) 11 km D) 16 km 050-01 THE ATMOSPHERE 2 2008 AVIATIONEXAM.com 15783 (A) 15790 (B) 15820 (A) 15849 (B) 15850 (B) 16572 (A) 24289 (C) 24425 (D) 24440 (D) 27119 (B) 27159 (C) 27177 (B) 27390 (A) 27396 (A) 15783. (AIR: atpl; HELI: atpl) Why are indications about the height of the tropopause not essential for flight documentation in the tropics? A) The tropopause is generally well above the flight level actually flown. B) The meteorological services are unable to provide such a chart. C) The temperatures of the tropical tropopause are always very cold and therefore not important. D) Tropopause informations are of no value. 15790. (AIR: atpl; HELI: atpl) What is the most likely temperature at the tropical tropopause? A) -25 C B) -75 C C) -55 C D) -35 C 15820. (all) Half the mass of the atmosphere is found in the first: A) 5 km B) 3 km C) 8 km D) 11 km 15849. (all) What of the following is the most important constituent in the atmosphere from a weather standpoint? A) Hydrogen. B) Water vapour. C) Nitrogen. D) Oxygen. 15850. (AIR: atpl; HELI: atpl) The height and the temperature of the tropopause are respectively in the order of: A) 16 km and -40 C over the poles. B) 16 km and -75 C over the equator. C) 8 km and -40 C over the equator. D) 8 km and - 75 C over the poles. 16572. (all) The troposphere is: A) deepest (thickest) over the equator. B) deepest (thickest) over the poles. C) the same depth all over the earth. D) shallowest over the poles in summer. 24289. (all) In relation to the total weight of the atmosphere, the weight of the atmosphere between mean sea level and a height of 5.500 m is: A) 25% B) 1% C) 50% D) 99% 24425. (all) Which of the following statements concerning the tropopause is correct? A) The temperature of the tropopause at the equator and at the poles is equal. B) The temperature remains constant above and below thetropopause. C) The temperature of the tropopause at the equator is higher than at the poles. D) The temperature lapse rate changes abruptly at the tropopause. 24440. (all) Which statement concerning the tropopause is correct? A) The temperature at the tropopause is approximately -80 C over the Poles and approximately -40 C over the equator. B) Above the tropopause no clear air turbulence occurs. C) In the ICAO standard atmosphere the tropopause lies higher over the Poles than over the equator. D) The layer just above the tropopause is absolutely stable. 27119. (all) A temperature increase with altitude through a layer is called: A) heating aloft. B) an inversion. C) an extension. D) unstable air. 27159. (AIR: atpl; HELI: atpl) The region of the atmosphere which is normally stable and has few clouds is known as the: A) tropopause B) troposphere C) stratosphere D) jetstream 27177. (all) The lowest layer in the atmosphere is: A) the stratosphere. B) the troposphere. C) the mesosphere. D) the Heaviside layer. 27390. (AIR: atpl; HELI: atpl) What is the average temperature of the tropical tropopause? A) -75 C B) -65 C C) -56,5 C D) -40 C 27396. (AIR: atpl; HELI: atpl) Which statement is true concerning the tropopause from the equator to the poles? A) The tropopause decreases, the tropopause temperature increases. B) The tropopause decreases, the tropopause temperature decreases. C) The tropopause increases, the tropopause temperature increases. D) The tropopause increases, the tropopause teniperature decreases. 050-01 THE ATMOSPHERE 3 2008 AVIATIONEXAM.com 27422 (B) 28393 (C) 28398 (D) 8810 (D) 8824 (B) 8833 (D) 8858 (C) 8887 (B) 8890 (B) 8898 (A) 10024 (A) 10038 (D) 10066 (C) 10068 (D) 10074 (D) 27422. (AIR: atpl; HELI: atpl) What can be said about the temperature in the lower stratosphere? A) The temperature is constant.B) The temperature is increasing. C) The temperature is decreasing. D) The temperature is first increasing and then decreasing. 28393. (all) The layer of the Earth s atmosphere which most concerns aviators is called the: A) stratosphere. B) tropopause. C) troposphere. D) equatorial zone. 28398. (all) The percentage concentration of gases in the atmosphere is constant from the surface of the earth to a certain altitude with the exception of: A) oxygen B) nitrogen C) hydrogen D) water vapour 050-01-02 Temperature 8810. (all) Several physical processes contribute to atmospheric warming. Which of the following contribute the most? A) Absorption and evaporation. B) Solar radiation and conduction. C) Absorption and vaporization. D) Convection and condensation. 8824. (all) The amount of water vapor which air can hold largely depends on: A) relative humidity. B) air temperature. C) stability of air. D) dew point. 8833. (all) An outside air temperature of -35 C is measured while cruising at FL200. What is the temperature deviation from the ISA at this level? A) 5 C colder than ISA. B) 10 C warmer than ISA. C) 5 C warmer than ISA. D) 10 C colder than ISA. 8858. (all) At a certain position, the temperature on the 300 hPa chart is -48 C; according to the tropopause chart, the tropopause is at FL330. What is the most likely temperature at FL350? A) -56,5 C B) -50 C C) -54 C D) -58 C 8887. (all) A significant inversion at low height is a characteristic of: A) the passage of cold front. B) nocturnal radiation. C) advection fog. D) cumulus clouds. 8890. (all) An inversion is a layer of air which is: A) absolutely unstable. B) absolutely stable. C) conditionally unstable.D) conditionally stable. 8898. (all) An inversion is: A) an increase of temperature with height. B) an increase of pressure with height. C) a decrease of pressure with height. D) a decrease of temperature with height. 10024. (all) When in the upper part of a layer warm air is advected the: A) stability increases in the layer. B) stability decreases in the layer. C) wind will back with increasing height in the northern hemisphere. D) wind speed will always decrease with increasing height in the northern hemisphere. 10038. (all) The environmental lapse rate in an actual atmosphere: A) has a fixed value of 2 C/1000 ft. B) has a fixed value of 1 C/100 m. C) has a fixed value of 0,65 C/100 m. D) varies with time. 10066. (all) In the lower part of the stratosphere the temperature: A) decreases with altitude. B) is almost constant. C) increases with altitude. D) increases at first and decreases afterward. 10068. (all) An isothermal layer is a layer of air in which the temperature: A) increases with height at a constant rate. B) increases with height. C) decreases with height at a constant rate. D) remains constant with height. 10074. (all) Which of the following is a common result of subsidence? A) Clear air turbulence at higher altitudes . B) CB-clouds and thunderstorms over a large area. C) Wide spread NS and AS clouds and intense precipitation. D) An inversion over a large area with haze, mist. 050-01 THE ATMOSPHERE 4 2008 AVIATIONEXAM.com 10095 (B) 10122 (C) 10130 (A) 10145 (D) 10754 10839 (B) 10861 (C) 10862 (D) 10877 (D) 10879 10095. (all) What is the technical term for an increase in with altitude? A) Subsidence B) Inversion C) Adiabatic D) Advection 10122. (all) How would you characterise an air temperature the 700 hPa level over western Europe? A) Within +/-5 C of ISA. B) High. C) Low. D) 20 C below standard. 10130. (all)(A) 10802 (B) 10812 (C) 10820 (D) (B) 10894 (C) 15782 (A) temperatureof -15 C atThe rate of decrease of temperature with height per 100 m in the International Standard Atmosphere is: A) 0,65 C B) 1 C C) 0,5 C D) variable 10145. (all) The radiation of the Sun heats: A) the air in the troposphere only directly if no clouds are present. B) the air in the troposphere directly. C) the water vapour in the air of the troposphere. D) the surface of the Earth, which heats the air in the troposphere. 10754. (all) What characteristic is associated with a temperature inversion? A) Stability. B) Instability. C) Clear ice. D) Area of active storms. 10802. (all) The temperature at FL160 is -22 C. What will the temperature be at FL90 if the ICAO standard lapse rate is applied? A) -4 C B) -8 C C) 0 C D) +4 C 10812. (all) The temperature at FL140 is -12 C. What will the temperature be at FL110 if the ICAO standard lapse rate is applied: A) -9 C B) -18 C C) -6 C D) -15 C 10820. (all) The temperature at FL80 is +6 C. What will the temperature be at FL130 if the ICAO standard lapse rate is applied? A) +2 C B) -6 C C) 0 C D) -4 C 10839. (all) The diurnal variation in temperature is largest when the sky is: A) clear and winds are strong. B) clear and winds are weak. C) overcast and winds are weak. D) overcast and winds are strong. 10861. (all) On a clear sky, continental ground surface, wind calm, the minimum temperature is reached approximately: A) at the moment the sun rises. B) half an hour before sunrise. C) half an hour after sunrise. D) one hour before sunrise. 10862. (all) The temperature at FL110 is -5 C. What will the temperature be at FL50 if the ICAO standard lapse rate is applied? A) -3 C B) +3 C C) 0 CD) +7 C 10877. (all) The 0 isotherm is forecast to be at FL50. At what FLwould you expect a temperature of -6 C? A) FL110 B) FL20 C) FL100 D) FL80 10879. (all) A temperature of 15 C is recorded at an altitude of 500 metres above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500 metres above sea level? A) +4 C B) +2 C C) 0 C D) -2 C 10894. (all) Around Paris on January 3rd at 1800 UTC, the surface temperature, under shelter, is 3 C. The sky is covered by 8 oktas of stratus. QNH is 1.033 hPa. If the sky is covered all night, the minimum temperature of the night of January 3rd to January 4th should be: A) slightly above +3 C. B) significantly below 0 C. C) slightly below +3 C. D) significantly above +3 C. 15782. (all) Which of the following is a common cause of ground or surface temperature inversion? A) Terrestrial radiation on a clear night with no or very light winds. B) Warm air being lifted rapidly aloft, in the vicinity of mountainous terrain. C) The movement of colder air under warm air, or the movement of warm air over cold air. D) Heating of the air by subsidence. 050-01 THE ATMOSPHERE 5 2008 AVIATIONEXAM.com 15810 (D) 15822 (A) 15823 (D) 15851 (C) 15858 (B) 15876 (A) 16348 (C) 16555 (A) 16556 (B) 16571 (A) 24216 (C) 24222 (C) 24353 (D) 24386 (C) 27349 (A) 27385 (B) 15810. (all) How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause? A) Increases. B) At first it increases and higher up it decreases. C) Remains constant. D) Decreases. 15822. (all) How would you characterize an air temperature of -30c at the 300 hPa level over western Europe? A) High. B) Within +/-5 C of ISA. C) Low. D) Very low. 15823. (all) How would you characterise an air temperature of -55 C atthe 200 hPa level over western Europe? A) High. B) Low. C) Very high. D) Within +/-5 C of ISA. 15851. (all) An Inversion is a layer of air in which the temperature: A) increases with height more than 1 C/100 m. B) decreases with height more than 1 C/100 m. C) increases with height. D) remains constant with height. 15858. (all) A wide body takes off on a clear night in Dhahran, Saudi Arabia. Shortly after takeoff the aircrafts rate of climb drops to zero. This can be due to: A) low relative humidity. B) a very strong temperature inversion. C) sand/dust in the engines. D) very pronounced downdrafts. 15876. (all) In still air the temperature decreases at an average of 1,2 C per 100 m increase in altitude. This temperature change is called: A) environmental lapse rate. B) saturated adiabatic lapse rate. C) dry adiabatic lapse rate. D) normal lapse rate. 16348. (all) Horizontal differences in the mean temperature of a layer near the earth surface are caused by: A) insolation. B) advection. C) differential heating of the earths surface. D) change of air mass. 16555. (all) Which one of the following describes normal conditions? A) Temperature decreases with height in the troposphere. B) Temperature increases with height in the troposphere. C) Temperature decreases with height in the stratosphere. D) Temperature decreases at a similar rate in the troposphere as in the stratosphere. 16556. (all) For international aviation meteorological purposes, temperature is measured in degrees: A) Fahrenheit B) Celsius C) Absolute D) Kelvin 16571. (all) If the depth of the troposphere increases, the temperature at the tropopause must: A) decrease. B) stay the same. C) increase. D) impossible to say. 24216. (all) A parcel of unsaturated air is forced to rise through an isothermal layer. So long as it remains unsaturated, the temperature of the parcel: A) decreases 0,65 C per 100 m.B) remains constant. C) decreases 1 C per 100 m. D) becomes equal to the temperature of the isothermal layer. 24222. (all) According to ISA the temperature in the lower part of the stratosphere: A) decreases with altitude. B) is almost constant. C) increases with altitude. D) increases at first and decreases afterward. 24353. (all) The temperature lapse rate of the standard atmosphere in the troposphere is: A) -2,5 C/1.000 ft. B) -3 C/1.000 ft. C) -6,5 C/1.000 ft. D) -2 C/1.000 ft. 24386. (all) What is, approximately, the temperature at 20.000 ft in the ICAO Standard Atmosphere? A) -20 C B) -15 C C) -25 C D) -30 C 27349. (all) What feature is associated with a temperature inversion? A) A stable layer of air. B) An unstable layer of air. C) Air man thunderstorms. D) Cold front. 27385. (all) A temperature increase with increasing altitude is called: A) subsidence B) inversion C) adiabate D) advection 050-01 THE ATMOSPHERE 6 2008 AVIATIONEXAM.com 27389 (A) 27744 (D) 28390 (B) 28391 (C) 28402 (A) 28418 (B) 28469 (D) 10035 (A) 10059 (C) 10085 (D) 10137 (D) 10807 (B) 10822 (B) 15780 (A) 15809 (C) 27389. (all) While flying at FL120, you notice an OAT of -2 C. At which altitude do you expect the freezing level to be? A) FL110 B) FL130 C) FL150 D) FL90 27744. (all) What is the cause for a surface temperature inversion? A) The presence of a high pressure area. B) The presence of a polar front depression. C) Moist, unstable air, and a lifting action. D) By heavy radiational cooling at night of the lowest layer of air, or if warm air moves in over a colder surface. 28390. (all) The majority of troposphere heating is the result of: A) radiation of the sun.B) heating from the ground below. C) re-radiation of the sun s rays from the surface of the earth. D) re-radiation from the clouds. 28391. (all) Why is a calm and clear-sky night cooler than a cloudy night? A) The clouds prevent radiation from the atmosphere. B) There is radiation from the clouds. C) The radiation from the earth s surface slips into space. D) Due to contents of carbon dioxide. 28402. (all) Temperature variation during 24 hours is least over: A) sea B) grass C) mountain D) forest 28418. (all) When temperature drops without changes of dew point temperature: A) the amount of water vapor will increase. B) relative humidity will increase. C) the amount of water vapor will decrease. D) relative humidity will decrease. 28469. (all) An inversion is characterized by: A) constant temperature with increasing altitude. B) parts of the air mass at each level is warmer than surrounding air. C) the tendency to increase relative humidity with increasing altitude. D) increasing temperature with increasing altitude. 050-01-03 Atmospheric pressure 10035. (all) What positions are connected by isobars on the surface weather chart? A) Positions with the same air pressure at a given level. B) Positions with the same temperature at a given level. C) Positions with the same wind velocity at a given level. D) Positions with the same relative pressure heights. 10059. (all) In the troposphere the decrease of pressure per 100 m increase in height: A) is greater at higher levels than at lower levels. B) remains constant at all levels. C) is smaller at higher levels than at lower levels. D) is in the order of 27 hPa near MSL. 10085. (all) An isohypse (contour): A) indicates the altitude of the zero degree isotherm. B) is the longest slope line of a frontal surface. C) is the limit between two air masses of different temperature. D) indicates the true altitude of a pressure level. 10137. (all) The station pressure used in surface weather charts is: A) QNE B) QFE C) QNH D) QFF 10807. (all)Which of the following is true concerning atmospheric pressure? A) It is higher in winter than in summer. B) It decreases with height. C) It is higher at night than during the da. D) It always decreases with height at a rate of 1 hPa per 8 m. 10822. (all) Isobars on a surface chart are lines of equal: A) QFE B) QFF C) QNE D) QNH 15780. (all) What is the approximate vertical interval which is equal to a pressure change of 1 hPa at an altitude of 5.500 m? A) 15 m (50 ft). B) 8 m (27 ft). C) 32 m (105 ft). D) 64 m (210 ft). 15809. (all) The isobars drawn on a surface weather chart represent lines of equal pressure: A) at height of observatory. B) at a determined density altitude. C) reduced to sea level. D) at flight level. 050-01 THE ATMOSPHERE 7 2008 AVIATIONEXAM.com 15837 (C) 15877 (A) 16349 (B) 16357 (A) 16363 (B) 16364 (D) 16436 (B) 16438 (C) 16439 (B) 16511 (A) 16517 (B) 16534 (C) 16544 (C) 15837. (all) Between which latitudes are you most likely to find the region of travelling low pressure systems in summer? A) 25 - 35 B) 10 - 15 C) 55 - 75 D) 35 - 55 15877. (all) Assume that an aircraft is flying in the northern hemisphere at the 500 hPa pressure surface on a heading of 270. Which of the following statements is correct? A) If in this pressure surface the wind comes from the direction 360, then true altitude is increasing. B) If in this pressure surface the wind comes from the direction 180, then true altitude is increasing. C) If in this pressure surface the wind comes from the direction 270, then true altitude is increasing. D) If in this pressure surface the wind comes from the direction 090, then true altitude is increasing. 16349. (all) At altitude, the atmospheric pressure in a column of warm air is likely to be: A) lower than at the same height in a column of cold air. B) higher than at the same height in a column of cold air. C) the same irrespective of the temperature. D) depends on the relative humidity.16357. (all) Which of the following statements is true? A) High contour values are equivalent to high pressure. B) Low contour values are equivalent to high pressures. C) High contour values are equivalent to low pressure. D) There is not direct relationship between contour values and pressure. 16363. (all) Contour heights are: A) true heights AGL. B) true heights AMSL. C) indicated heights above 1.013,25 mb. D) do not indicate heights at all. 16364. (all) When flying from high to low contour values, which of the following is incorrect? A) The true height of the aircraft will be falling. B) The pressure altimeter will indicate a constant value. C) The indicated height of the aircraft will be constant. D) The indicated height of the aircraft will only be true if 1.013,25 mb is set. 16436. (all) You are making a long-distance flight and have chosen a suitable cruising altitude for the whole flight. Towards the end of your flight, you have descended. What may be to reason for this? A) You are approaching a region of high pressure. B) You are approaching a region of low pressure. C) Standard pressure has dropped. D) Temperature has increased. 16438. (all) Select the correct statement regarding the wind directions in connection with the high and low pressure systems in the northern hemisphere: A) the winds blow counter-clockwise around a high a clockwise in a low. B) the winds blow clockwise in both highs and lows. C) the winds blow clockwise in a high and counterclockwise in a low. D) the winds blow counter-clockwise in both highs and lows. 16439. (all) If you fly across the isobars towards a region of high pressure in the northern hemisphere, you will: A) drift to the right. B) drift to the left. C) experience no drift but experience a headwind. D) experience no drift but experience a tailwind. 16511. (all) According to definition, flight levels are surfaces with constant air pressure determined from a certain pressure value. Which is this value? A) 1.013,25 hPa. B) 1.025,13 hPa. C) Actual QFE. D) Actual QNH. 16517. (all) If you have a column of air limited by two isobaric surfaces at a pressure difference of 100 hPa, the distance between the pressure surfaces will change if mean temperature and mean pressure of the column of air change. In which ofthe following alternatives will the change of temperature and pressure interact to shorten the distance as much as possible? A) The temperature increases and pressure increases. B) The temperature decreases and pressure increases. C) The temperature increases and pressure decreases. D) The temperature decreases and pressure decreases. 16534. (all) Lines joining points of equal pressure are known as: A) isotherms B) isopleths C) isobars D) isotachs 16544. (all) A pressure difference of 10 hPa close to the ground corresponds to a height difference of: A) about 50 m. B) about 150 m. C) about 300 ft. D) about 30 ft. 050-01 THE ATMOSPHERE 8 2008 AVIATIONEXAM.com 16587 (D) 24345 (B) 24431 (C) 27179 (A) 27189 (C) 27354 (B) 27355 (A) 27356 (D) 27357 (C) 27358 (A) 27359 (B) 27360 (A) 27361 (B) 27362 (D) 27363 (C) 16587. (all) A rising parcel of air which has no heat entering or leaving it, will: A) reduce in pressure, rise in temperature, decrease in density. B) maintain volume, decrease in density, reduce in pressure. C) maintain pressure, reduce in density, increase in volume. D) reduce in pressure, decrease in density, increase in volume. 24345. (all) The QFF at an airfield located 400 metres above sea level is 1.016 hPa. The air temperature is 10 C higher than a standard atmosphere. What is the QNH? A) 1.016 hPa. B) More than 1.016 hPa. C) Less than 1.016 hPa. D) It is not possible to give a definitive answer. 24431. (all) Which of the following statements is correct? A) Cumulus clouds and a good visibility are normally observed in a warm sector in winter. B) Cumulus clouds and a good visibility are normally observed in a warm sector in autumn. C) Normally atmospheric pressure stops falling rapidly behind a warm front, the air temperature rises. D) At warm fronts thunderstorms are often observed. 27179. (all) The average change of pressure with height in the lower atmosphere is: A) 1hPa/27 ft. B) 1hPa/20 ft. C) 1hPa/50 ft. D) 1hPa/56 ft. 27189. (all) A line on a chart joining places of equal sea level pressureis called an: A) isogonal. B) agonic line. C) isobar. D) isotherm. 27354. (all) The isohypse 2.960 m can be expected at the constant pressure chart for the following pressure level: A) 850 hPa B) 700 hPa C) 500 hPa D) 300 hPa 27355. (all) The isohypse 1.620 m can be expected at the constant pressure chart for the following pressure level: A) 850 hPa B) 700 hPa C) 500 hPa D) 300 hPa 27356. (all) The isohypse 11.880 m can be expected at the constant pressure chart for following pressure level: A) 850 hPa B) 700 hPa C) 500 hPa D) 200 hPa 27357. (all) The isohypse 5.700 m can be expected at the constant pressure chart for the following pressure level: A) 300 hPa B) 700 hPa C) 500 hPa D) 200 hPa 27358. (all) The isohypse 8.760 m can be expected at the constant pressure chart for following pressure level: A) 300 hPa B) 700 hPa C) 500 hPa D) 200 hPa 27359. (all) What is the pressure in sutface weather charts called? A) QFE B) QFF C) QNH D) QNE 27360. (all) At which average height can the 700 hPa pressure level in moderate latitude be expected? A) 3,0 km AMSL. B) 5,5 km AMSL. C) 9,0 km AMSL. D) 12,0 km AMSL. 27361. (all) At which average height can the 500 hPa pressure level in moderate latitudes be expected? A) 3,0 km AMSL. B) 5,5 km AMSL. C) 9,0 km AMSL. D) 12,0 km AMSL.27362. (all) Atwhich average height can the 200 hPa pressure level in moderate latitudes be expected? A) 3,0 km AMSL. B) 5,5 km AMSL. C) 9,0 km AMSL. D) 12,0 km AMSL. 27363. (all) At which average height can the 300 hPa pressure level in moderate latitudes be expected? A) 1,5 km AMSL. B) 3,0 km AMSL. C) 9,0 km AMSL. D) 12,0 km AMSL. 050-01 THE ATMOSPHERE 9 2008 AVIATIONEXAM.com 27364 (A) 27365 (A) 27367 (A) 27368 (D) 27369 (C) 27370 (A) 27371 (A) 27372 (B) 27373 (B) 27374 (C) 27375 (A) 27376 (B) 27398 (A) 27399 (C) 27400 (A) 27364. (all) At which average height can the 850 hPa pressure level in moderate latitudes be expected? A) 1,5 km AMSL. B) 3,0 km AMSL. C) 9,0 km AMSL. D) 12,0 km AMSL. 27365. (all) At an airport (400 m AMSL), a QFF of 1.016 hPa and a temperature 10 C higher than ISA is observed: A) the QNH is higher than 1.016 hPa. B) the QNH is lower than 1.016 hPa. C) the QNH equals 1.016 hPa. D) the QNH cannot be determined. 27367. (all) At an airport (200 m AMSL), a QNH of 1.009 hPa and a temperature 10 C lower than ISA is observed: A) the QFF is higher than 1.016 hPa. B) the QFF is lower than 1.016 hPa. C) the QFF equals 1.009 hPa. D) the QFF cannot be determined. 27368. (all) At an airport (200 m AMSL), a QNH of 1.022 hPa is observed and the temperature is unknown. A) The QFF is higher than 1.022 hPa. B) The QFF is lower than 1.022 hPa. C) The QFF equals 1.022 hPa. D) The QFF cannot be determined. 27369. (all) At an airport (0 m AMSL), a QNH of 1.022 hPa is observed and the temperature is unknown: A) the QFF is higher than 1.022 hPa. B) the QFF is lower than 1.022 hPa. C) the QFF equals 1.022 hPa. D) the QFF cannot be determined. 27370. (all) At an airport in California (69 m below MSL), a QNH of 1.018 hPa and a temperature 10 C higher than standard is observed: A) the QFF is higher than 1.018 hPa.B) the QFF is lower than 1.018 hPa. C) the QFF equals 1.018 hPa. D) the QFF cannot be determined. 27371. (all) At an airport in California (69 m below MSL), a QFF of 1.030 hPa and a termperature is 10 C lower than standard is observed: A) the QNH is higher than 1.030 hPa. B) the QNH is lower than 1.030 hPa. C) the QNH equals 1.030 hPa. D) the QNH cannot be determined. 27372. (all) What is the value for a pressure change of 1 hPa at an altitude of 5.500 m? A) Approx. 8 m (27 ft). B) Approx. 16 m (50 ft). C) Approx. 32 m (105 ft). D) Approx. 64 m (210 ft). 27373. (all) QFE 980 hPa at an altitude of 200 m AMSL. What will the approximate QNH be? A) 1.000 hPa B) 1.005 hPa C) 1.010 hPa D) 1.015 hPa 27374. (all) QFE 1.000 hPa at an altitude of 200 m AMSL. What will the approximate QNH be? A) 985 hPa B) 990 hPa C) 1.025 hPa D) 1.035 hPa 27375. (all) QNH 1015 hPa at an altitude of 200 m AMSL: What will the approximate QFE be? A) 990 hPa B) 995 hPa C) 1.000 hPa D) 1.005 hPa. 27376. (all) QNH 1.025 hPa at an altitude of 200 m AMSL. What will the approximate QFE be? A) 995 hPa B) 1.000 hPa C) 1.005 hPa D) 1.025 hPa 27398. (all) State the definition for QNH: A) QFE reduced to MSL, using standard temperature gradient. B) OFF reduced to MSL, using standard temperature gradient. C) QFE reduced to MSL, using actual temperature gradient. D) QNE reduced to MSL, using standard temperature gradient. 27399. (all) State the definition for QFF: A) QFE reduced to MSL, using standard temperature gradient. B) QNH reduced to MSL, using standard temperature gradient. C) QFE reduced to MSL, using actual temperature gradient. D) QNE reduced to MSL, using standard temperature gradient. 27400. (all) Which value has to be known to calculate the QNH out of the QFE?A) B) C) D)Field elevation. Actual temperature. The relative humidity of the air. The density altitude of the field.050-01 THE ATMOSPHERE 10 2008 AVIATIONEXAM.com 27465 (A) 27492 (A) 28387 (D) 28388 (B) 28389 (A) 28394 (C) 15779 (B) 24454 (B) 27120 (B) 28396 (B) 28470 (B) 28471 (D) 8840 (C) 8850 (A) 27465. (all) What can be said about isobars? A) Isobars appear on meteorological surface charts. B) Isobars are lines of equal temperature. C) Certain information can be depicted with the isobars on upper level char. D) Isobars show wind speeds around a jet stream area. 27492. (all) Which statement is true? A) QNH can be equal to QFE. B) QNH is always lower than QFE. C) QFE is always lower than QNH. D) QFE can be equal to QFF only. 28387. (all) At sea level, the pressure of the atmosphere on a standard day will cause the mercury in the column to rise to: A) 92,29 inches. B) 19,19 inches. C) 29,29 inches. D) 29,92 inches. 28388. (all) What is dynamic pressure? A) Turbulence. B) Pressure caused by movement. C) Acceleration force. D) Centrifugal force. 28389. (all) As altitude increases, the weight of the atmosphere above you will: A) decrease. B) remain the same. C) increase. D) increase with 1,5 kg/m2 per 1.000 ft. 28394. (all) The unit of pressure most commonly used in meteorology is: A) kg/cm2 B) lbs/in2 C) hPa D) tons/m2 050-01-04 Atmospheric density 15779. (all) At FL180, the air temperature is -35 C. The air density at this level is: A) unable to be determined without knowing the QNH. B) greater than the density of the ISA atmosphere at FL180. C) less than the density of the ISA atmosphere at FL180. D) equal to the density of the ISA atmosphere at FL180. 24454. (all)With all other quantities being constant, the density of the atmosphere increases with increasing: A) relative humidity. B) air pressure. C) stability. D) temperature. 27120. (all) Stratiform clouds indicate stable air. Flight generally will be: A) rough with good visibility. B) smooth with low ceiling and visibility. C) smooth with good visibility. D) smooth with moderate turbulence and good vkibility. 28396. (all) In relation to air density which of the following responses are correct: A) cold air is less dense than warm air. B) dry warm air is less dense than cold air. C) if the temperature is decreasing the air density will decrease. D) air density is not influenced of air humidity. 28470. (all) Which of the following combinations contain the greatest air density? A) High pressure and high temperature. B) High pressure and low temperature. C) Low pressure and high temperature. D) Low pressure and low temperature. 28471. (all) Air density is mass of air per unity of volume, and is influenced by: A) pressure, latitude and season. B) pressure, temperature and the amount of water vapour. C) altitude. D) altitude, pressure, temperature and the amount of water vapour. 050-01-05 International Standard Atmosphere (ISA) 8840. (all) The lowest assumed temperature in the International Standard Atmosphere (ISA) is: A) -44,7 C B) -273 C C) -56,5 C D) -100 C 8850. (all) A 500 hPa pressure level can vary in height. In temperate regions which of the following average heights is applicable? A) FL180 B) FL160 C) FL100 D) FL390 050-01 THE ATMOSPHERE 11 2008 AVIATIONEXAM.com 8869 (A) 8882 (C) 8884 (A) 10073 (C) 10120 (A) 10125 (B) 10127 (D) 10136 (D) 10736 (C) 10763 (B) 10888 (A) 24253 (C) 24336 (C) 8869. (all) A 700 hPa pressure level can vary in height. In temperate regions which of the following average heights is applicable?A) FL100 B) FL180 C) FL300 D) FL390 8882. (all) The temperature at 10.000 ft in the International Standard Atmosphere is: A) -20 C B) 0 C C) -5 C D) -35 C 8884. (all) If you are flying at FL120 and the outside temperature is -2 C, at what altitude will the freezing level be? A) FL110 B) FL130 C) FL150 D) FL90 10073. (all) A 850 hPa pressure level can vary in height. In temperate regions which of the following average heights is applicable? A) FL300 B) FL100 C) FL50 D) FL390 10120. (all) If you are flying at FL300 in an air mass that is 15 C warmer than a standard atmosphere, what is the outside temperature likely to be? A) -30 C B) -45 C C) -60 C D) -15 C 10125. (all) In the International Standard Atmosphere the decrease in temperature with height below 11 km is: A) 1 C per 100 m. B) 0,65 C per 100 m. C) 0,5 C per 100 m. D) 0,6 C per 100 m. 10127. (all) What is the vertical temperature lapse rate, up to 11 km, in the standard ICAO atmosphere? A) 2 C per 1.000 m. B) 4,5 C per 1.000 m. C) 3 C per 1.000 m. D) 6,5 C per 1.000 m. 10136. (all) A 200 hPa pressure altitude level can vary in height. In temperate regions which of the following average heights is applicable? A) FL50 B) FL300 C) FL100 D) FL390 10736. (all) A 300 hPa pressure level can vary in height. In temperate regions which of the following average heights is applicable? A) FL100 B) FL390C) FL300 D) FL50 10763. (all) If you are flying at FL100 in an air mass that is 10 C warmer than a standard atmosphere, what is the outside temperature likely to be? A) +15 C B) +5 C C) -10 C D) -15 C 10888. (all) Which statement is correct regarding the International Standard Atmosphere? A) At MSL temperature is 15 C and pressure is 1.013,25 hPa. B) At MSL temperature is 15 C and the decrease in temperature with height is 1 C per 100 m. C) At MSL temperature is 10 C and the decrease in temperature with height is 1 C per 100 m. D) At MSL pressure is 1.013,25 hPa and the decrease of temperature with height is 1 C per 100 m. 24253. (all) Between mean sea level and a height of 20 km, the lowest temperature in the ICAO Standard Atmosphere (ISA) is: A) -44,7 C B) -273 C C) -56,5 C D) -100 C 24336. (all) The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of: A) 2 C per 1.000 ft up to 65.617 ft after which it will remain constant to 104.987 ft. B) 1,98 C per 1.000 ft up to 36.090 ft and will then rise at 0,3 C per 1.000 ft up to 65.617 ft when it will remain constant. C) 1,98 C per 1.000 ft up to 36.090 ft after which it remains constant to 65.617 ft. D) 2 C per 1.000 ft up to 36.090 ft and will then increase at 0,3 C per 1.000 ft up to 65.617 ft. 050-01 THE ATMOSPHERE 12 2008 AVIATIONEXAM.com 24447 (A) 27044 (D) 27193 (C) 27210 (C) 27377 (B) 27378 (A) 27379 (D) 27380 (C) 27381 (A) 27382 (C) 27383 (B) 27386 (B) 27387 (C) 27388 (C) 27395 (A) 24447. (all) Which statement is correct regarding the ICAO Standard Atmosphere? A) At MSL temperature is 15 C and pressure is 1.013,25 hPa. B) At MSL temperature is 15 C and the decrease in temperature with height is 1 C per 100 m. C) At MSL temperature is 10 C and the decrease in temperature with height is 1 C per 100 m. D) At MSL pressure is 1.013,25 hPa and the decrease of temperature with height is 1 C per 100 m. 27044. (all) You are departing an aerodrome (600 RAMSL, QNH 1.012 hPa) and proceed to another airfield (195 RAMSL) with thesame QNH. After landing, which barometric setting on the altimeter makes it again indicate 600 ft? A) 997 B) 1.032 C) 992 D) 1.027 27193. (all) The temperature at sea level in the ISA is: A) +12,5 C B) +25 C C) +15 C D) 0 C 27210. (all) The pressure at sea level in the ISA is: A) 1.012,35 hPa B) 1.025,13 hPa C) 1.013,25 hPa D) 29,95 inHg 27377. (all) At an altitude of 500 m AMSL, a temperature of +15 C is measured. What will the temperatire be at an altitude of 2.500 m, if you consider the temperature gradient of the Standard Atmosphere? A) +4 C B) +2 C C) 0 C D) 2 C 27378. (all) FL80, an OAT +6 C is measured. What will the temperature be at FL130, if you consider the temperature gradient of the Standard Atmosphere? A) -4 C B) +2 C C) 0 C D) 6 C 27379. (all) FL110, an OAT -5 C is measured. What will the temperature be at FL50, if you consider the temperature gradient of the Standard Atmosphere? A) -3 C B) +3 C C) 0 C D) +7 C 27380. (all) FL140, an OAT -12 C is measured. What will the temperature be at FL110, if you consider the temperature gradient of the Standard Atmosphere? A) +2 C B) 0 C C) -6 C D) -18 C 27381. (all) FL160, an OAT -22 C is measured. What will the temperature be at FL90, if you consider the temperature gradient of the Standard Atmosphere? A) -8 C B) -4 C C) +4 C D) 0 C 27382. (all)An OAT of -15 C at the 700 hPa pressure level: A) equals approximately (45 C) ISA. B) is high. C) is low. D) is almost impossible. 27383. (all) An OAT of -30 C at the 300 hPa pressure level: A) equals approximately (5 C) ISA. B) is high. C) is low. D) is almost impossible. 27386. (all) An aircraft cruises at FL300 in an air mass, which is 15 C warmer than the Standard Atmosphere. The OAT is therefore: A) -60 C B) -30 C C) -45 C D) -15 C 27387. (all) An aircraft cruises at FL100 in an air mass, which is 10 C warmer than the Standart Atmosphere. The OAT is therefore: A) -10 C B) -15 C C) +5 C D) +15 C 27388. (all) You cruise at FL200 and notice an OAT of 35 C. The air mass has therefore an average temperature which is: A) 5 C warmer than ISA. B) 20 C colder than ISA. C) 10 C colder than ISA. D) 5 C colder than ISA. 27395. (all) What is the ISA temperature at FL110? A) -7 C B) +7 C C) 0 C D) 5 C 050-01 THE ATMOSPHERE 13 2008 AVIATIONEXAM.com 27397 (A) 27505 (A) 28395 (D) 28401 (C) 8807 (A) 8811 (B) 8815 (C) 8818 (A) 8829 (D) 8834 (B) 8836 (D) 8842 (A) 8843 (D) 27397. (all) What is the temperature decrease in the ISA? A) 0,65 C/100 m. B) 0,65 C/1.000 ft. C) 2 C/100 m. D) 1 C/100 m. 27505. (all) A temperature of 10 C above ISA is observed at FL180. What is the vertical distance between FL60 and FL120? A) 6.240 ft B) 6.000 ft C) 5.760 ft D) 3.000 ft 28395. (all) The international standard atmosphere (ISA) is defined formean sea level as: A) 1015,25 hPa, 15 C, and a density of 1.225 kg/m3. B) 1015,25 hPa, 15 C, with a lapse rate of 2 C per 1.000 ft. C) 1013,25 hPa, 15 C, a temperature lapse rate of 2 C per 1.000 ft. and a humidity of 5%. D) 1013,25 hPa, 15 C, a temperature lapse rate of 2 C per 1.000 ft. and a density of 1,225 kg/m3. 28401. (all) The temperature gradient in the international standard atmosphere (ISA) is: A) 1 C/100 m B) 0,5 C/100 m C) 0,65 C/100 m D) 0,6 C/100 m 050-01-06 Altimetry 8807. (all) In Geneva, the local QNH is 994 hPa. The elevation of Geneva is 1.411 ft. The QFE adjustment in Geneva is: A) 942 hPa B) 967 hPa C) 961 hPa D) 948 hPa 8811. (all) An aircraft is descending to land under IFR. If the local QNH is 1.009 hPa, what will happen to the altitude reading when the altimeter is reset at the transition level? A) It will increase. B) It will decrease. C) It will remain the same. D) It will not be affected. 8815. (all) The QNH at an airfield located 200 metres above sea level is 1.009 hPa. The air temperature is 10 C lower than a standard atmosphere. What is the QFF? A) Less than 1.009 hPa. B) 1.009 hPa. C) More than 1.009 hPa. D) It is not possible to give a definitive answer. 8818. (all) An aircraft is flying at FL80. The local QNH is 1.000 hPa. After the second altimeter has been adjusted to the local QNH, the reading will be approximately: A) 7.650 ft B) 8.600 ft C) 8.350 ft D) 8.000 ft 8829. (all) The QFF at an airfield in California located 69 metres below sea level is 1.030 hPa. The air temperature is 10 C lower than a standard atmosphere. What is the QNH? A) It is not possible to give a definitive answer. B) Less than 1.030 hPa. C) 1.030 hPa. D) More than 1.030 hPa. 8834. (all) An aircraft lands at an airport (airport elevation 1.240 ft, QNH 1.008 hPa). The altimeter is set to 1.013 hPa. The altimeter will indicate: A) 1.200 ft B) 1.375 ftC) 1.105 ft D) 1.280 ft 8836. (all) The following temperatures have been observed over a station at 1200 UTC. Assume the station is at MSL. Height in feet. Temperature in degrees C. 20.000 -12; 18.000 -11; 16.000 -10; 14.000 -10; 12.000 -6; 10.000 -2; 8.000 +2; 6.000 +6; 4.000 +12; 2.000 +15; surface +15. A) The layer between 16.000 and 18.000 ft is absolutely unstable. B) The height of the freezing level over the station is approximately 12.000 ft. C) The temperature at 10.000 ft is in agreement with the temperature in the International Standard Atmosphere. D) Assuming that the MSL pressure is 1.013,25 hPa the true altitude of an aircraft would actually be higher than the indicated altitude. 8842. (all) An aircraft lands at an airport (airport elevation 540 ft, QNH 993 hPa) with the altimeter set to 1.013 hPa. What will it indicate? A) 1.080 ft B) 700 ft C) 380 ft D) 0 ft 8843. (all) You are flying at FL130, and your true altitude is 12.000 ft. What is the temperature deviation from that of the standard atmosphere at FL130 (QNH 1.013,2 hPa)? A) ISA +12 C. B) ISA 0 C. C) ISA +20 C. D) ISA -20 C. 050-01 THE ATMOSPHERE 14 2008 AVIATIONEXAM.com 8845 (B) 8861 (C) 8863 (C) 8867 (D) 8870 (C) 8875 (D) 8879 (C) 10030 (B) 10046 (D) 10049 (C) 10052 (D) 10079 (B) 10087 (C) 10090 (A) 8845. (all) The pressure altitude is equal to the true altitude if: A) the outside air temperature is standard for that height. B) standard atmospheric conditions occur. C) the air pressure is 1.013,25 hPa at the surface. D) the indicated altitude is equal to the pressure altitude. 8861. (all) Which of the following conditions would cause the altimeter to indicate a lower altitude than that actually flown? A) Pressure altitude the same as indicated altitude. B) Atmospheric pressure lower than standard. C) Air temperature higher than standard. D) Air temperature lower than standard. 8863. (all) What pressure is defined as QFE? A) The pressure reduced to sea level using actual temperatures. B) The pressure of the altimeter. C) The pressure at field elevation. D) The pressure reduced to sea level using ISA temperatures. 8867. (all)During the climb after takeoff, the altimeter setting is adjusted at the transition altitude. If the local QNH is 1.023 hPa, what will happen to the altimeter reading during the resetting procedure? A) It is not possible to give a definitive answer. B) It will increase. C) It will remain the same. D) It will decrease. 8870. (all) An aircraft is flying at FL180 on the northern hemisphere with a crosswind from the left. Which of the following is correct concerning its true altitude? A) It remains constant. B) It increases. C) It decreases. D) Without knowing temperatures at FL180 this question can not be answered. 8875. (all) In order to calculate QFE from QNH, which of the following must be known? A) Elevation and the temperature at the airfield. B) Temperature at the airfield. C) Elevation of the airfield and the temperature at MSL. D) Elevation of the airfield. 8879. (all) If the QNH at Locarno (200 metres above sea level) is 1.025 hPa, what is the approximate QFE? A) 1.005 hPa B) 995 hPa C) 1.000 hPa D) 1.025 hPa 10030. (all) You are flying at FL200. Outside air temperature is -40 C, and the pressure at sea level is 1.033 hPa. What is the true altitude? A) 20.660 feet. B) 19.340 feet. C) 21.740 feet. D) 18.260 feet. 10046. (all) The QNH at an airfield located 0 metres above sea level is 1.022 hPa. The air temperature is not available. What is the QFF? A) It is not possible to give a definitive answer. B) Less than 1.022 hPa. C) More than 1.022 hPa. D) 1.022 hPa. 10049. (all) Which of the following conditions gives the highest value of the QNH? A) QFE = 1.003 hPa, elevation = 1.200 ft (366m). B) QFE = 1.000 hPa, elevation = 1.200 ft (366m). C) QFE = 995 hPa, elevation = 1.600 ft (488m). D) QFE = 995 hPa, elevation = 1.200 ft (366m). 10052. (all) Which statement is true? A) QNH can be 1.013,25 only for a station at MSL. B) QNH can not be 1.013,25 hPa. C) QNH is lower than 1.013,25 hPa at any time. D) QNH can be lower as well as higher than 1.013,25 hPa.10079. (all) When the subscale is set to the QNH of an airfield the pressure altimeter indicates: A) zero while landing. B) elevation while landing. C) elevation while landing only if conditions are as in the International Standard Atmosphere. D) zero while landing only if conditions are as in the International Standard Atmosphere. 10087. (AIR: atpl, ir; HELI: atpl, ir) A vertical spacing of 1.000 ft, is the standard required separation between two FL. Under conditions of cold air advection (ISA -15 C), what would the true vertical separation be? A) More than 1.000 ft. B) It remains 1.000 ft. C) Less than 1.000 ft. D) Without QNH information, it can not be determined. 10090. (all) The QNH at an airfield in California located 69 metres below sea level is 1.018 hPa. The air temperature is 10 C higher than a standard atmosphere. What is the QFF? A) More than 1.018 hPa. B) Less than 1.018 hPa. C) 1.018 hPa. D) It is not possible to give a definitive answer. 050-01 THE ATMOSPHERE 15 2008 AVIATIONEXAM.com 10091 (B) 10101 (D) 10113 (D) 10124 (B) 10140 (D) 10147 (C) 10162 (A) 10165 (B) 10735 (C) 10740 (D) 10798 (D) 10799 (D) 10091. (AIR: atpl, ir; HELI: atpl, ir) You are planning to fly across a mountain range. The chart recommends a minimum altitude of 12.000 feet above mean sea level. The air mass you will be flying through is an average 10 C warmer than ISA. Your altimeter is set to 1.023 hPa (QNH of a nearby airport at nearly sea level). What altitude will the altimeter show when you have reached the recommended minimum altitude? A) 12.210 feet. B) 11.520 feet. C) 11.250 feet. D) 11.790 feet. 10101. (AIR: atpl, ir; HELI: atpl, ir) You intend to overfly a mountain range. The recommended minimum flight altitude is, according to the aviation chart, 15.000 ft/AMSL. The air mass that you will fly through is on average 15 C warmer than the standard atmosphere. The altimeter is set to QNH (1.023 hPa). At what altimeter reading will you effectively be at the recommended minimum flight altitude? A) 15.900 ft B) 13.830 ft C) 14.370 ft D) 14.100 ft 10113. (all) QNH is defined as: A) the pressure at MSL obtained using the standard atmosphere.B) the pressure at MSL obtained using the actual conditions. C) QFE reduced to MSL using the actual conditions. D) QFE reduced to MSL using the standard atmosphere. 10124. (AIR: atpl, ir; HELI: atpl, ir) At which pressure and temperature conditions may you safely assume that the minimum usable flight level at least lies at the same height, as the minimum safe altitude? A) In a cold low pressure region. B) At a temperature greater than or equal to that of the ISA and where the QNH is greater than or equal to 1.013 hPa. C) At a temperature less than or equal to that of the ISA and where the QNH is less than 1.013 hPa. D) In a warm high pressure region. 10140. (all) The QNH is equal to the QFE if: A) T actual < T standard. B) T actual = T standard. C) T actual > T standard. D) the elevation = 0. 10147. (all) The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15 C below FL100. What is the true altitude of FL100? A) 9.740 ft B) 10.160 ft C) 8.640 ft D) 11.460 ft 10162. (AIR: atpl, ir; HELI: atpl, ir) The barometric compensator of an altimeter is locked on reference 1.013,2 hPa. The aircraft has to land on a point with an elevation of 290 feet where the QNH is 1.023 hPa. Assuming that 1 hPa corresponds to 27 ft, the reading on the altimeter on the ground will be: A) 20 ft B) 11 ft C) -10 ft D) 560 ft 10165. (all) An aircraft is flying over the sea at FL90; the true altitude is 9.100 feet; local QNH is unknown. What assumption, if any, can be made about the air mass in which the aircraft is flying? A) It is colder than ISA. B) There is insufficient information to make any assumption. C) It is warmer than ISA. D) Its average temperature is the same as ISA. 10735. (AIR: atpl, ir; HELI: atpl, ir) An aircraft is flying through the Alps on a very cold winters day. The regional QNH is 1.013 hPa. During the flight, you circle around a mountain at an altitude of its summit. What reading will the aneroid altimeter give, compared to the elevation of the summit? A) The same altitude as the elevation of the summit. B) A lower altitude than the elevation of the summit. C) A higher altitude than the elevation of the summit. D) There is insufficient information to come to a conclusion. 10740. (AIR: atpl, ir; HELI: atpl, ir) An aircraft is flying through the Alps on a warm summers day. The weather is fine, and there is a high pressure system in the area. During the flight, a mountain is passed atan altitude of its summit. What reading will the aneroid altimeter give, compared to the summits elevation? A) There is insufficient information to come to a conclusion. B) A higher altitude than the elevation of the summit. C) The same altitude as the elevation of the summit. D) A lower altitude than the elevation of the summit. 10798. (all) The QFF at an airfield located 400 metres above sea level is 1.016 hPa. The air temperature is 10 C lower than a standard atmosphere. What is the QNH? A) It is not possible to give a definitive answer. B) More than 1.016 hPa. C) 1.016 hPa. D) Less than 1.016 hPa. 10799. (all) In order to reduce QFE to QNH, which of the following item(s) must be known? A) Elevation of the airfield and the temperature at the airfield. B) Temperature at the airfield. C) Elevation of the airfield and the temperature at MSL. D) Elevation of the airfield. 050-01 THE ATMOSPHERE 16 2008 AVIATIONEXAM.com 10803 (B) 10808 (A) 10813 (D) 10816 (C) 10830 (C) 10835 (B) 10836 (A) 10853 (D) 10858 (C) 10859 (B) 10864 (B) 10865 (B) 10868 (A) 10803. (all) After landing at an aerodrome (aerodrome elevation 1.715 ft), the altimeter indicates an altitude of 1.310 ft. The altimeter is set to the pressure value of 1.013 hPa. What is the QNH at this aerodrome? A) 1.015 hPa B) 1.028 hPa C) 1.013 hPa D) 998 hPa 10808. (AIR: atpl, ir; HELI: atpl, ir) What information is required to convert a minimum safe altitude into a lowest usable flight level? A) Lowest value of QNH and the highest negative temperature deviation from ISA. B) Highest value of QNH and the highest negative temperature deviation from ISA. C) Highest value of QNH and the highest positive temperature deviation from ISA. D) Lowest value of QNH and the lowest negative temperature deviation from ISA. 10813. (all) An aircraft is flying over the sea at FL100, with a true altitude of 10.000 feet; local QNH is 1.003 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying? A) There is insufficient information to come to any conclusion. B) Its average temperature is about ISA. C) It is colder than ISA. D) It is warmer than ISA. 10816. (all) Which weather condition lowers true altitude as comparedto pressure altitude to a position where flight over mountains could be dangerous? A) Cold high. B) Warm depression. C) Cold low. D) Warm high. 10830. (all) An aircraft flying at FL100 from Marseille (QNH 1.012 hPa) to Palma de Mallorca (QNH 1.006 hPa) experiences no change to true altitude. The reason for this is that: A) the altimeters are erroneous, and need to be tested. B) the air at Palma de Mallorca is colder than that at Marseille. C) the air at Palma de Mallorca is warmer than that at Marseille. D) one of the two QNH values may be incorrect. 10835. (all) During a flight over the sea at FL135, the true altitude is 13.500 feet; local QNH is 1.019 hPa. What information, if any, can be gained about the air mass in which the aircraft is flying? A) Its average temperature is the same as ISA. B) It is colder than ISA. C) It is warmer than ISA. D) There is insufficient information to make any assumption. 10836. (AIR: atpl, ir; HELI: atpl, ir) If atmospheric conditions exist such that the temperature deviation is ISA +10 C in the lower troposphere up to 18.000 ft, what is the actual layer thickness between FL60 and FL120? A) 6.240 ft B) 6.000 ft C) 5.900 ft D) 5.760 ft 10853. (all) For a given airfield the QFE is 980 hPa and the QNH is 1.000 hPa. The approximate elevation of the airfield is: A) 120 metres. B) 600 metres. C) 540 metres. D) 160 metres. 10858. (all) If the QFE at Locarno (200 metres above sea level) is 980 hPa, what is the approximate QNH? A) 1.015 hPa B) 1.000 hPa C) 1.005 hPa D) 1.010 hPa 10859. (all) If the QFE at Locarno (200 metres above sea level) is 1.000 hPa, what is the approximate QNH? A) 985 hPa B) 1.025 hPa C) 990 hPa D) 1.035 hPa 10864. (all) An altimeter adjusted to 1.013 hPa indicates an altitude of 3.600 ft. Should this altimeter be adjusted to the local QNH value of 991 hPa, the altitude indicated would be: A) 2.922 ft B) 3.006 ft C) 4.278 ftD) 4.194 ft 10865. (all) You are flying at FL160. Outside air temperature is -27 C, and the pressure at sea level is 1.003 hPa. What is the true altitude? A) 15.630 feet. B) 15.090 feet. C) 16.370 feet. D) 16.910 feet. 10868. (AIR: atpl, ir; HELI: atpl, ir) During a flight over the sea at FL100 from Marseille (QNH 1.012 hPa) to Palma de Mallorca (QNH 1.012 hPa), the true altitude is constantly increasing. What action, if any, should be taken? A) None, the reason for the change is that the air around Palma is warmer than the air around Marseille. B) Have your altimeter checked, because its readings are obviously wrong. C) Recheck the QNH because one of the QNH values must be wrong. D) Compensate by heading further to the left. 050-01 THE ATMOSPHERE 17 2008 AVIATIONEXAM.com 10873 (C) 10876 (B) 10881 (B) 15812 (C) 15824 (B) 15825 (B) 15826 (C) 15827 (D) 15828 (B) 15836 (B) 15852 (D) 15857 (C) 15889 (B) 10873. (AIR: atpl, ir; HELI: atpl, ir) During a flight at FL100 from Marseille (QNH 1.012 hPa) to Palma de Mallorca (QNH 1.015 hPa), an aircraft remains at a constant true altitude. The reason for this is that: A) the air at Marseille is colder than that at Palma de Mallorca. B) the altimeters are erroneous, and need to be tested. C) the air at Marseille is warmer than that at Palma de Mallorca. D) one of the two QNH values may be incorrect. 10876. (AIR: atpl, ir; HELI: atpl, ir) During a flight over the sea at FL100 from Marseille (QNH 1.016 hPa) to Palma de Mallorca (QNH 1.016 hPa), the true altitude is constantly decreasing. What is the probable reason for this? A) One of the QNH values must be wrong. B) The air at Marseille is warmer than that at Palma de Mallorca. C) The altimeter is faulty. D) The aircraft is being blown off track to the left. 10881. (AIR: atpl, ir; HELI: atpl, ir) You plan a flight over a mountain range at a true altitude of 15.000 ft/AMSL. The air is on an average 15 C colder than ISA, the pressure at sea level is 1.003 hPa. What indication must the altimeter (setting 1.013,2 hPa) read? A) 15.690 ft B) 16.170 ft C) 14.370 ft D) 13.830 ft 15812. (all) What is the relationship, if any, between QFE and QNH at an airport situated 50 ft below sea level? A) QFE equals QNH. B) No clear relationship exists. C) QFE is greater than QNH.D) QFE is smaller than QNH. 15824. (all) The QNH at an airfield located 200 metres above sea level is 1.022 hPa. The air temperature is not available. What is the QFF? A) Less than 1.022 hPa. B) It is not possible to give a definitive answer. C) More than 1.022 hPa. D) 1.022 hPa. 15825. (all) If the QNH at Locarno (200 metres above sea level) is 1.015 hPa, what is the approximate QFE? (Assume 1 hPa = 8 m) A) 1.005 hPa B) 990 hPa C) 995 hPa D) 1.000 hPa 15826. (all) An aircraft is flying over the sea at FL120, with a true altitude of 12.000 feet, local QNH is 1.013 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying? A) It is warmer than ISA. B) There is insufficient information to come to any conclusion. C) Its average temperature is the same as ISA. D) It is colder than ISA. 15827. (all) During the climb after takeoff, the altimeter setting is adjusted at the transition altitude. If the local QNH is 966 hPa, what will happen to the altimeter reading during the resetting procedure? A) It will decrease. B) It will remain the same. C) It is not possible to give a definitive answer. D) It will increase. 15828. (all) (Refer to figure 050-14) An aircraft is flying from Point A to Point B on the upper level contour chart. The altimeter setting is 1.013,2 hPa. Which of these statements is correct? A) Wind speed at A and at B is the same. B) The true altitude will be higher at A than at B. C) The true altitude will be higher at B than at A. D) Wind speed at A is higher than at B. 15836. (all) After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1.013,2 hPa and that it reads 1.200 feet. What is the elevation of the aerodrome above mean sea level? A) 2.280 feet. B) 660 feet. C) 1.200 feet. D) 1.740 feet. 15852. (all) Which of the following statements is true? A) QNH is always lower than QFE. B) QNH is always higher than QFE. C) QNH is always equal to QFE. D) QNH can be equal to QFE. 15857. (all) You must make an emergency landing at sea. The QNH of afield on a nearby island with an elevation of 4.000 ft is 1.025 hPa and the temperature is -20 C. What is your pressure altimeter reading when landing if 1.025 hPa is set in the subscale? A) 4.000 ft. B) Less than 0 ft. C) 0 ft. D) More than 0 ft, but less than 4.000 ft. 15889. (all) Before landing, an altimeter set to QFE indicates: A) the height of the aircraft s wheels above the runway. B) in standard atmosphere, the height of the aircraft above the official airport elevation. C) the flight level. D) the aircraft s altitude above the mean sea level. 050-01 THE ATMOSPHERE 18 2008 AVIATIONEXAM.com 16504 (A) 16505 (C) 16510 (A) 16512 (B) 16514 (C) 16515 (B) 16516 (D) 16520 (D) 16521 (D) 16522 (C) 16524 (B) 16527 (B) 16535 (D) 16504. (all) Suppose that you are flying at FL40 and that you reset the altimeter to reference pressure 993 hPa. The altimeter then indicates: A) about 3.400 ft. B) about 3.700 ft. C) about 4.300 ft. D) about 4.600 ft. 16505. (all) In which of the following cases will the altimeter always indicate the airport elevation when landing? A) If QFF on the airport is set as reference. B) If QFE of the airport is set as reference. C) If QNH of the airport is set as reference. D) At standard setting. 16510. (all) At an airport 1.700 ft above sea level the temperature reading is +10 C . from the barometer readings made at the same time QFE, QFF nad QNH are computed. Which of the following statements concerning air pressure in correct? A) QFF is higher than QNH. B) QFF is equal to QNH. C) QFF is equal to QFE. D) QNH is equal to QFE. 16512. (all) When landing at an airport you have correctly set QNH = 1.023 hPa as reference pressure on your altimeter. The altimeter indicates 1.200 ft after landing. Suppose that you change the pressure reference to standard setting (1.013 hPa). What will your altimeter indicate? A) 0 ft B) 900 ft C) 1.200 ft D) 1.500 ft 16514. (all) What will the altimeter indicate if the actual altitude is to be 10.000 ft when the pressure altitude is 10.000 ft at OAT -30 C?A) 9.000 ft B) 10.000 ft C) 11.000 ft D) 12.000 ft 16515. (all) A barometric altimeter always indicates: A) correct altitude to the terrain below. B) altitude to the set altitude reference. C) standard altitude. D) the dynamic pressure. 16516. (all) Suppose that you want your altimeter on landing to indicate airport elevation. Which of the following pressures will you use as reference? A) Standard (1.013,25). B) QFE. C) QFF. D) QNH. 16520. (all) A pressure altimeter indicates: A) actual altitude above MSL. B) actual altitude above the terrain below. C) the distance between two isobaric surfaces in the actual atmoshpere. D) the distance between two isobaric surfaces in the standard atmosphere. 16521. (all) You are flying at a constant altitude according to your altimeter. Your altimeter setting is unchanged. Which of the following interact to give a minimum a true altitude? 1) Flying from an area of low pressure to that an area of high pressure. 2) Flying from an area of high pressure to that an area of low pressure. 3) Flyin from a warm air mass to a cold air mass. 4) Flying from a cold air mass to a warm air mass. A) 1, 3 B) 2, 4 C) 1, 4 D) 2, 3 16522. (AIR: atpl, ir; HELI: atpl, ir) You are fying over an airport at an indicated altitude of 5.600 ft. Airport elevation = 2.785 ft. The altimeter is set at the correct aerodrome QNH value of 993 hPa and the instrument error is zero, you are crossing the airport at a hight above ground of: (standard pressure setting = 1.013 hPa, 1 hPa = 27 ft) A) 5.000 ft B) 5.600 ft C) 2.815 ft D) 2.215 ft 16524. (all) At the official measuring level for a specific airport, an aircraft altimeter, set at QNH for the airport, should read: A) the elevation of the airport, but only at standard ISA temperature. B) the elevation of the airport, regardless of temperature. C) zero, regardless of temperature. D) zero, only at standard ISA temperature. 16527. (all) Which one of the following conditions gives the shortesttakeoff run, if the airports have the same QNH? A) High temperature and low airport elevation. B) Low temperature and low airport elevation. C) High temperature and high airport elevation. D) Low temperature and high airport elevation. 16535. (all) On the ground, an altimeter will read ___ if QFE is set and ___ if QNH is set. A) airfield elevation; airfield altitude B) zero ft; airfield altitude C) zero ft; airfield height D) zero ft; airfield elevation 050-01 THE ATMOSPHERE 19 2008 AVIATIONEXAM.com 16541 (C) 16543 (B) 16568 (D) 24011 (D) 24189 (D) 24190 (D) 24229 (A) 24236 (D) 24237 (C) 24238 (C) 24239 (A) 24240 (B) 16541. (AIR: atpl, ir; HELI: atpl, ir) An aircraft is flying at FL75 over point A where the QNH is 1.013 hPa, enroute to B where the QNH is 979 hPa. Assuming that 1hPa equals 27 ft and that point B is 823 metres amsl the terrain clearance over B is: A) 6.480 ft B) 4.280 ft C) 4.072 ft D) 5.680 ft 16543. (AIR: atpl, ir; HELI: atpl, ir) An aircraft is to fly at an indicated altitude of 5.000 ft from X (elevation 850 ft, QNH 984 hPa) to Y (elevation 2.300 ft QNH 1.024 hPa). Assuming that the altimeter sub-scale is set to 984 mbs and 1 hPa = 27 ft, the height of the aircraft over X and Y will be: A) 5.000 ft; 3.900 ft. B) 4.150 ft; 3.780 ft. C) 4.150 ft; 1.500 ft. D) 5.000 ft; 1.500 ft. 16568. (all) The altimeter reading of pressure must be corrected for the following errors: A) temperature, index, instrument. B) index, temperature, pressure. C) instrument, gravity, temperature. D) instrument, temperature, pressure. 24011. (AIR: atpl, ir; HELI: atpl, ir) An aircraft is flying at FL150, with an outside air temperature of -30, above an airport where the elevation is 1.660 ft and the QNH is 993 hPa. Calculate the true altitude. (Assume 27 ft = 1 hPa) A) 15.210 ft B) 14.120 ft C) 17.160 ft D) 13.660 ft 24189. (all) (Refer to figure 050-15) An aircraft is flying from Point A to Point B on the upper level contour chart. The altimeter setting is 1.013,2 hPa. Which of these statements is correct? A) Wind speed at B is higher than at A.B) The true altitude will be higher at A than at B. C) Wind speed at Madrid is higher than at A. D) The true altitude will be higher at B than at A. 24190. (all) (Refer to figure 050-16) An aircraft is flying from Point A to Point B on the upper level contour chart. The altimeter setting is 1.013,2 hPa. Which of these statements is correct? A) Wind speed at B is higher than at A. B) The true altitude will be higher at A than at B. C) Wind speed at A and at B is the same. D) The true altitude will be higher at B than at A. 24229. (AIR: atpl, ir; HELI: atpl, ir) An aeroplane flies at FL40. Elevation of the aerodrome is 990 ft QNH 976 hPa. The tower clears the pilot to fly at 3.000 ft QNH. Which of the following statements is correct? A) Only a small change of altitude is necessary. B) The aeroplane has to climb about 1.000 ft. C) The aeroplane has to descend about 1.000 ft. D) The aeroplane has to descend about 2.000 ft. 24236. (all) An aircraft flying at FL45 (OAT 6 C) obtains a reading of 1.860 ft on its radio altimeter (ground elevation 3.090 ft). What is the value of the QNH, to the nearest hPa, at that point? A) 1.042 B) 996 C) 1.013 D) 1.030 24237. (AIR: atpl, ir; HELI: atpl, ir) An aircraft maintains a constant indicated altitude of 4.500 ft from A (360 ft/AMSL - QNH 986 hPa) to B (690 ft/ AMSL - QNH 1.011 hPa). Assuming that the altimeter subscale setting remains unchanged at 986 hPa, the height of the aircraft above the surface at B are: A) 4.815 ft B) 3.135 ft C) 4.485 ft D) 5.175 ft 24238. (AIR: atpl, ir; HELI: atpl, ir) An aircraft maintains a constant indicated altitude of 5.500 ft from A (1.050 ft/AMSL - QNH 968 hPa) to B (650 ft/ AMSL - QNH 1.016 hPa). Assuming that the altimeter subscale setting remains unchanged at 968 hPa, the height of the aircraft above the surface at B are: A) 4.854 ft B) 6.796 ft C) 6.146 ft D) 7.446 ft 24239. (AIR: atpl, ir; HELI: atpl, ir) An aircraft maintains a constant indicated altitude of 6.500 ft from A (600 ft/AMSL - QNH 1012 hPa) to B (930 ft/ AMSL - QNH 977 hPa). Assuming that the altimeter subscale setting remains unchanged at 1.012 hPa, the height of the aircraft above the surface at B are: A) 4.625 ft B) 6.515 ft C) 5.555 ftD) 5.225 ft 24240. (AIR: atpl, ir; HELI: atpl, ir) An aircraft maintains a constant indicated altitude of 7.500 ft from A (270 ft/AMSL - QNH 1021 hPa) to B (1.650 ft/AMSL - QNH 983 hPa). Assuming that the altimeter subscale setting remains unchanged at 1.021 hPa, the height of the aircraft above the surface at B are: A) 6.204 ft B) 4.824 ft C) 6.876 ft D) 6.474 ft 050-01 THE ATMOSPHERE 20 2008 AVIATIONEXAM.com 24273 (C) 24280 (D) 24313 (D) 24408 (B) 24409 (B) 24410 (C) 24411 (C) 24412 (B) 24456 (D) 24458 (A) 27043 (A) 27045 (A) 27046 (D) 27047 (B) 24273. (AIR: atpl, ir; HELI: atpl, ir) Given: Altimeter setting: 1.013,2 hPa Altimeter reading: 5.000 ft Outside air temperature at 5.000 ft: +5 C QFE: 958 hPa QNH: 983 hPa What is the true height of the aeroplane above the aerodrome? A) 4.325 ft B) 4.190 ft C) 3.515 ft D) 4.865 ft 24280. (all) If the QFE, QNH and QFF of an airport have the same value: A) the 1.013,25 hPa level must be at MSL. B) the conditions must be as in the ISA. C) the airport must be at MSL and the conditions must be as in the ISA. D) the airport must be at MSL. 24313. (all) Pressure altitude is obtained by: A) setting the altimeter to QFF pressure. B) correcting the altimeter for temperature deviation from ISA. C) setting the altimeter to a station pressure which has been corrected to sea level. D) setting the altimeter to standard sea level pressure. 24408. (all) Which FL corresponds with the 200 hPa pressure level? A) FL300 B) FL390 C) FL100 D) FL50 24409. (all) Which FL corresponds with the 300 hPa pressure level? A) FL390 B) FL300 C) FL100 D) FL50 24410. (all) Which FL corresponds with the 500 hPa pressure level? A) FL100B) FL160 C) FL180 D) FL390 24411. (all) Which FL corresponds with the 700 hPa pressure level? A) FL300 B) FL180 C) FL100 D) FL390 24412. (all) Which FL corresponds with the 850 hPa pressure level? A) FL100 B) FL50 C) FL300 D) FL390 24456. (all) You are flying at FL340 (250 hPa) on the northern hemisphere. The wind is geostrophic and there is a cross wind from the right all the time. Your true altitude will: A) increase, only if the temperature at your flight level is rising on your route. B) decrease. C) decrease, only if the pressure at the surface is decreasing on your route. D) increase. 24458. (AIR: atpl, ir; HELI: atpl, ir) You are flying over the sea at FL250 and measure an outside temperature of -50 C. The pressure at sea level is 1.023 hPa. What is your approximate true altitude calculated using normal vertical change in temperature with increase in height? A) 23.770 ft AMSL. B) 26.230 ft AMSL. C) 26.770 ft AMSL. D) 23.230 ft AMSL. 27043. (all) When the barometric subscale of the altimeter is adjusted to 1.013,2 hPa, what type of altitude is being measured? A) Preaure altitude. B) Indicated altitude. C) True altitude. D) Relative height. 27045. (all) When the altimeter indicated 0 (zero) ft when the aircraft was parked for the night, and 1.000 ft the following morning, this shows that: A) the barometric pressure has decreasedby approx. 37 hPa. B) the barometric pressure is constant, but the temperature has fallen during the night. C) a formation of fog has most probably taken place. D) the barometric prenure has increased by approx. 37 hPa. 27046. (all) Without readjusting the barometric setting of the altimeter, it will under-read when: A) flying from a high pressure area into a low pressure area. B) flying in headwind with constant barometric pressure. C) flying in tailwind with constant barometric pressure. D) flying from a low prenure area into a high pressure area. 27047. (all)An aircraft is in level flight at FL100 over a mountain range, which extends up to 2.400 metres AMSL. If the regional QNH is 998 hPa, what is the approximate terrain clearance? A) 2.536 feet. B) 1.700 feet. C) 7.821 feet. D) 405 feet. 050-01 THE ATMOSPHERE 21 2008 AVIATIONEXAM.com 27191 (B) 27401 (A) 27402 (A) 27424 (A) 27426 (A) 27433 (A) 27441 (A) 27598 (A) 27599 (A) 27600 (C) 27601 (D) 27602 (D) 27603 (C) 27191. (all) An aircraft, flying so that the altimeter indicates 2.500 ft with the current regional QNH set in the subscale, is flying towards an area of lower pressure. If the pilot fails to revise the subscale setting as the QNH changes, then the aircraft will: A) gradually climb. B) gradually descend. C) maintain 2.500 ft AMSL. D) no anumption is possible. 27401. (all) While passing the Transition Level, you set the subscale on your altimeter to the local QNH of 1.009 hPa: A) your indicated altitude decreases. B) your indicated altitude increases. C) a statement is not possible without the knowledge of the exact OAT. D) your setting is wrong, the subscale must be set to 1.013,2 hPa. 27402. (all) On takeoff, your altimeter is set to the local QNH of 1.023 hPa. While passing the Transition Altitude, you adjust the subscale accordingly: A) your indicated altitude decreases. B) your indicated altitude increases. C) a statement is not poseible without the knowledge of the exad OAT. D) the altimeter setting must remain at 1.023 hPa. 27424. (all) What condition would cause that your altimeter is indicating lower than actually flown? A) Temperature higher than standard. B) Temperature lower than standard. C) Standard temperature. D) Pressure lower than standard. 27426. (all) You fly over the sea at FL90, TA 9.100R, QNH unknown. What can be assumpted? A) No assumption is possible, because the information is not sufficient. B) It is warmer than ISA. C) It is colder than ISA. D) The QNH is lower than 1.013 hPa. 27433. (all) Your altimeter is blocked at 1.000 hPa. You have to overfly a mountain (8.000 ft) with a terrain clearance of at least1.500 ft. What will be your indicated altitude when the QNH of a nearby airport is 990 hPa and the temperature is 10 C colder than ISA? A) 10.150 ft B) 10.501 ft C) 8.850 ft D) 9.500 ft 27441. (all) You are flying at FL100 in an air mass which is 15 C colder than ISA, local QNH 983. True altitude? A) 8.590 ft B) 11.410 ft C) 10.000 ft D) 10.210 ft 27598. (all) While mountain flying on a cold winter day, under fair weather conditions (QNH 1.013 hPa) you circle a mountain of known height at peak elevation. Comparing to the elevation of the mountain, the aneroid altimeter of your aircraft will therefore indicate: A) a higher altitude. B) a lower altitude. C) peak elevation. D) cannot be determined. 27599. (all) While mountain flying on a warm summer day under high pressure conditions, you circle a mountain of known height at peak elevation. Comparing to the indication of your altimeter, the peak elevation will therefore be: A) higher. B) lower. C) equal. D) cannot be determined. 27600. (all) You have landed on an airport (elevation 1.240 ft, QNH 1.008 hPa). Your altimeter subscale is erroneously set to 1.013 hPa. Therefore, the indication will be: A) 1.105 ft B) 1.200 ft C) 1.375 ft D) 1.280 ft 27601. (all) You are cruising at FL200, OAT -40 C, sea level pressure 1.033 hPa. Calculate the true altitude: A) 20.660 ft B) 21.740 ft C) 18.260 ft D) 19.340 ft 27602. (all) You intend to ovefly a mountain ridge at an altitude of 15.000 ft AMSL. The average air temperature is 15 C lower than ISA, the sea level pressure 1.003 hPa. Which altimeter indication (standard setting) is needed? A) 15.630 ft B) 14.370 ft C) 13.830 ft D) 16.170 ft 27603. (all) You have landed on an airport (elevation 540 ft, QNH 993 hPa). Your altimeter subscale is erroneously set to1.013 hPa. Therefore, the indication will be: A) 0 ft B) 380 ft C) 1.080 ft D) 700 ft 050-01 THE ATMOSPHERE 22 2008 AVIATIONEXAM.com 27604 (C) 27607 (A) 27609 (D) 27626 (A) 28392 (C) 28397 (B) 28399 (D) 28400 (A) 28403 (A) 27604. (all) You intend to ovefly a mountain ridge. The recommended minimum altitude for overflight according to your ICAO chart is 12.000 ft AMSL. The average air temperature is 10 C higher than ISA, your altimeter is set to the local QNH of 1023 hPa. Which altimeter indication is needed to maintain the recomended minimum altitude? A) 11.205 ft B) 12.210 ft C) 11.250 ft D) 11.790 ft 27607. (all) You have landed at an airport, local QNH 993 hPa. After landing, you notice, that your altimeter subscale is still set to 1.013,2 hPa. Your altimeter indicates 1.200 ft. What is the airport elevation? A) 660 ft AMSL. B) 40 ft AMSL. C) 2.280 ft AMSL. D) 1.200 ft AMSL. 27609. (all) You are cruising at FL160 at an OAT of -27 C. The sea level pressure is 1.003 hPa. Your true altitude therefore is: A) 15.630 ft B) 16.370 ft C) 16.910 ft D) 15.090 ft 27626. (all) Your altimeter indicates 3.600 ft, while set to standard pressure. You now adjust the subscale to the local QNH of 991 hPa. What will the indication be? A) 3.006 ft B) 4.194 ft C) 3.600 ft D) 3.320 ft 28392. (all) The altimeter is connected to: A) the pitot tube. B) the dynamic system. C) the static system. D) the elevator. 28397. (all) In spite of a constant altimeter reading your aircraft is loosing altitude. This could be caused by: A) flying towards high pressure. B) flying towards low pressure. C) the standard air pressure has fallen. D) increased temperature.28399. (all) What altimeter reading would you expect when landing at an airfield 3.000 ft above MSL, altimeter setting is QFE for the field and local temperature is +25 C? A) 3.300 ft B) 3.000 ft C) 2.700 ft D) 0 ft 28400. (all) The temperature is -15 C on an airport 3.000 ft above mean sea level. Which of the following statements is correct? A) QFF > QNH B) QFF = QFE C) QFF = QNH D) QNH = QFE 28403. (all) Which of altimeter settings is used when flying in flight levels? A) 1013,25 hPa B) 1025,13 hPa C) QFF D) QFE 050-02 WIND 23 2008 AVIATIONEXAM.com 8940 (C) 8944 (A) 8947 (D) 8952 (A) 8953 (A) 8963 (B) 8988 (A) 8994 (B) 10561 (A) 10562 (B) 10600 (D) 10632 (D) 10648 (D) 10687 (B) 050-02-01 Definition and measurement 8940. (all) What is the approximate speed of a 40 kts wind, expressed in m/sec? A) 25 m/sec. B) 15 m/sec. C) 20 m/sec. D) 30 m/sec. 8944. (all) (Refer to figure 050-28) What does zone A depict? A) A trough. B) A ridge. C) The warm sector. D) The cold front. 8947. (all) What values are used for the forecasted wind at higher levels? A) Direction relative to grid north and speed in km/h. B) Direction relative to magnetic north and speed in knots. C) Direction relative to magnetic north and speed in km/h. D) Direction relative to true north and speed in knots. 8952. (all) The wind tends to follow the contour lines (isohypses) above the friction layer because: A) the coriolis force tends to balance with the horizontal pressure gradient force. B) contour lines are lines that connect points with the same windspeed in the upper air. C) the coriolis force acts perpendicular on a line that connects high and low pressure system. D) the friction of the air with the Earth s surface gives the airflow a diversion perpendicular to the gradient force.8953. (all) During periods of prolonged clear skies associated with anticyclonic conditions, the: A) surface wind speed tends to be highest during the early afternoon. B) surface wind speed tends to be highest at night. C) angle between isobars and surface wind direction tends to be greatest in the early afternoon. D) wind tends to back from early morning until early afternoon. 8963. (all) (Refer to figure 050-08) Which air mass and cloud depiction matches the routing A-B? A) 2 B) 3 C) 4 D) 1 8988. (all) (Refer to figure 050-90) On which route do you expect moderate to severe CAT at FL300? A) Zurich-Rome. B) London-Zurich. C) Zurich-Copenhagen. D) Paris-Bordeaux. 8994. (all) Wind is caused by? A) Mixing of fronts. B) Horizontal pressure difference. C) Earth rotation. D) Surface friction. 10561. (all) (Refer to figure 050-92) What wind speed do you expect over Rome at FL340? A) 145 kts B) 340 kts C) 95 kts D) 140 km/h 10562. (all) What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars? A) Coriolis force. B) Surface friction. C) The greater density of the air at the surface. D) The greater atmospheric pressure at the surface. 10600. (all) (Refer to figure 050-63) What are the weather conditions for a flight Zurich-Stockholm at FL240? A) Your flight will be mainly in clouds, outside of CAT areas. B) Your flight will be mainly clear of clouds, intermittently in icing conditions. C) You may encounter thunderstorms intermittently. D) Your flight will be permanently clear of clouds. 10632. (all) What is the approximate speed of a 25 kts wind, expressed in kilometres per hour? A) 60 km/h B) 35 km/h C) 55 km/hD) 45 km/h 10648. (all) What prevents air from flowing directly from high-pressure areas to low-pressure areas? A) The pressure gradient force. B) Surface friction. C) Katabatic force. D) Coriolis force. 10687. (all) What is the approximate speed of a 90 km/h wind, expressed in knots: A) 55 kts B) 50 kts C) 60 kts D) 70 kts 050-02 WIND 24 2008 AVIATIONEXAM.com 10702 (A) 10783 (D) 15860 (D) 15862 (A) 16600 (C) 16609 (D) 24219 (A) 24294 (D) 27037 (A) 27038 (A) 27114 (A) 27115 (B) 27131 (B) 27134 (C) 10702. (all) The difference between geostrophic wind and gradient wind is caused by: A) curvature of isohypses. B) friction. C) horizontal temperature gradients. D) slope of pressure surfaces. 10783. (all) (Refer to figure 050-28) What does zone B depict? A) A trough. B) A ridge. C) The warm sector. D) The cold front. 15860. (all) In an area of converging air in low level: A) convective clouds can be dissolved. B) stratified clouds can be dissolved. C) clouds can not be formed. D) clouds can be formed. 15862. (all) What relationship exists between the wind at 3.000 feet and the surface wind? A) The wind at 3.000 feet is parallel to the isohypses and the surface wind direction is across the isobars toward the low pressure and the surface wind is weaker. B) They have the same direction, but the surface wind is weaker, caused by friction. C) They are practically the same except when eddies exist, caused by obstacles. D) The surface wind is veered compared to the wind at 3.000 feet and is usually weaker. 16600. (all) Buys Ballot s law implies that: A) the wind blows anti-clockwise round depressions in both hemispheres. B) the wind blows clockwise round an anticyclone in the southern hemisphere.C) the wind blows clockwise round a depression in the southern hemisphere only. D) the wind blows anti-clockwise round anti-cyclones in the northern hemisphere. 16609. (all) Which of the following statements is true? A) A gale has an average speed of 33 kts or more. B) A gust is a squall which lasts for several minutes. C) The more stable the atmosphere, the more turbulence. D) The more stable the atmosphere, the less turbulence. 24219. (all) A wind of 20 knots corresponds to an approximate speed of: A) 10 m/sec B) 40 m/sec C) 10 km/h D) 50 km/h 24294. (all) In the mid-latitudes of the northern hemisphere the wind blows: A) direct from high to low pressure areas. B) clockwise around anticyclones and cyclones. C) clockwise around cyclones and anti-clockwise around anticyclones. D) clockwise around anticyclones and anti-clockwise around cyclones. 27037. (all) What is drizzle? A) Small water droplets of 0,2 to 0,5 mm in diameter. B) Water droplets of more than 0,5 mm in diameter. C) Precipitation which forms mostly in CB and CU clouds. D) Typical precipitation, when NS clouds are present. 27038. (all) What (amongst other) is the purpose for consulting an SWC chart prior to flight? A) To avoid areas with turbulence. B) To obtain exact weather information for the destination airport. C) To obtain complete weather forecastsfor the entire route of flight. D) To obtain weather information for a VFR flight only. 27114. (all) Evaporation is the change of: A) liquid water to water vapour. B) water vapour to ice. C) invisible water vapour to liquid water. D) ice diredly to water vapour. 27115. (all) Water droplets often condense or persist at temperature colder than 0 C. What are the droplets called which are colder than 0 C? A) Super-heated water droplets. B) Supercooled water droplets. C) Ice. D) None of the above. 27131. (all) The direction of the pressure gradient force is? A) Towards high pressure. B) Towards low pressure. C) Parallel to the isobars. D) Same direction as the friction force. 27134. (all)Which precipitation type normally indicates freezing rain at some altitude above the ground? A) Snow. B) Hail. C) Ice pellets. D) Ice crystals. 050-02 WIND 25 2008 AVIATIONEXAM.com 27141 (B) 27143 (C) 27144 (B) 27147 (C) 27151 (A) 27162 (A) 27194 (C) 27208 (A) 27245 (C) 27250 (A) 27252 (B) 27314 (A) 27315 (A) 27410 (A) 27141. (all) Thermal turbulence is caused by: A) wing-tip vortexes. B) vertical movements due convection flow in unstable air. C) deviations due to mountain terrain. D) smooth air movements upon smooth subdratum. 27143. (all) What relationship exists between the winds at 2.000 ft above the surface and the surface winds? A) The winds at 2.000 ft and the surface winds flow in the same direction, but the surface winds are weaker due to friction. B) The winds at 2.000 ft and the surface winds are approximately the same except when eddies form due to obstructions. C) The winds at 2.000 ft tend to parallel the isobars while the surface winds cross the isobars at an angle toward lower pressure and are weaker. D) The surface winds tend to veer to the right of the winds at 2.000 ft and are visually weaker. 27144. (all) Possible mountain wave turbulence should be anticipated in cases where windspeeds of: A) 20 kts or greater blow across a mountain ridge, and the air is unstable. B) 25 kts or greater blow across a mountain ridge, and the air is stable. C) 25 kts or greater blow down a mountain valley, and the air is unstable. D) 25 kts or greater blow parallel to a mountain peak, and the air is stable. 27147. (all) Which force, in the northern hemisphere, acts at a right angle to the wind and deflects it to the right until parallel to the isobars? A) Centrifugal. B) Pressure gradient. C) Coriolis. D) Advection. 27151. (all) A trough is a: A) kind of low pressure. B) high pressure ridge. C) tropical thunderstorm. D) tropical wind. 27162. (all) If you are flying into an area of low pressure, what drift would you expect to be experience in the northern hemisphere?A) Right drift. B) None C) Left drift. D) Ice directly to water vapor. 27194. (all) A wind that has changed clockwise in direction can be said to have: A) reduced B) backed C) veered D) advanced 27208. (all) There is a natural tendency for air to flow from areas of: A) high pressure to low pressure. B) low pressure to high pressure. C) mountainous areas to flat areas. D) flat terrain towards the sea. 27245. (all) A V-shaped extension of a low pressure area is called a: A) ridge B) col C) trough D) occlusion 27250. (all) If you stand with your back to the wind in the northern hemisphere, the low pressure will be: A) on your left. B) on your right. C) behind you. D) ahead of you. 27252. (all) The wind at the surface is 240/15 kts. What is it most likely to be at 2.000 ft? A) 210/30 kts B) 270/30 kts C) 280/15 kts D) 210/15 kts 27314. (all) What prevents air from flowing directly from high to low pressure areas over western Europe? A) Coriolis force. B) Surface friction. C) Pressure gradient force. D) The presence of occlusions. 27315. (all) The general circulation of air associated with a low pressure area in there is: A) inward, upward and counter clockwise. B) inward, upward and clockwise. C) outward, downward and clockwise. D) inward, downward and counter clockwise. 27410. (all) How is wind measured? A) 8-10 m above the ground on a mastwith an anemometer. B) 2 m above the ground in a weather shelter. C) 2 m above the ground on a mast with an anemomenter. D) 8-10 m above the ground on a mast with a pluiriometet. 050-02 WIND 26 2008 AVIATIONEXAM.com 27419 (B) 27423 (C) 27432 (C) 27439 (A) 27440 (A) 27445 (A) 27446 (A) 27447 (A) 27461 (A) 27477 (A) 27485 (A) 27491 (A) 27495 (A) 27499 (A) 27502 (A) 27506 (A) 27419. (all) What is the name of the low level winds between the subtropical high pressure belt and the TCZ? A) Monsoon. B) Trade winds. C) Easterly wave. D) Low level jetstream. 27423. (all) What is the most frequent wind in valleys, caused by thermal effects? A) Mountain wind by day. B) Mountain wind by night. C) Valley wind by day. D) Valley wind by night. 27432. (all) What can you expect at FL180, when the wind is geostrophic and your true altitude is 18.000 ft? A) Crosswind from the right. B) Crosswind from the left. C) No crosswind. D) None of the above. 27439. (all) Where can ajetstream be observed? A) On a Significant Weather Chart (SWC). B) On a high level pressure chart. C) On a surface chart. D) All of the above. 27440. (all) What can on a Significant Weather Chart be depicted? A) The speed and direction of a surface front. B) The speed and direction of an upper front. C) The amount of rain in a certain area. D) The actual weather situation. 27445. (all) What cloud type is prone to +RA? A) NS B) AS C) CC D) ST 27446. (all) When is heavy precipitation unlikely? A) In summer, with SC and AC clouds. B) In summer, with CB and CU clouds. C) In spring and autumn, with NS and CB clouds. D) In winter, with CB clouds. 27447. (all) The precipitation form +TSRA is most probably related to the following cloud type: A) CB B) CU C) NS D) CC 27461. (all) What happens when you descend from 2.000 ft to the surface, when no fronts are present? A) The wind backs and decreases.B) The wind veers and decreases. C) The wind veers and increases. D) The wind backs and the wind speed remains more or less constant. 27477. (all) A trough of low pressure on a surface synoptic chart: A) is an area of convergence and wi