april 2013

EXCEL PRE-BOARD EXAMINATION GEAS

Mapa Intensive Review April 2013 | TEAM 4A [BADURIAKAYE DAHILOGMAVERICK GAMBOAJANE GARCIAJAN MICHAEL GAYASJEMYLYN JIMENEZJONDEE

LINESESMARK ANGELO MALANASHARA JANE MALLARIANGEL MORENOMARK RAZACHARISHZA SANTOSGEMROSE]

1

1. Which of the following is the least efficient? a. Gasoline engine b. Gas engine c. Carnot Engine d. Diesel Engine

2. What refers to the product of the selling

price per unit and the number of units sold? a. Overall sales b. Total revenue c. Product-sales performance d. Total profit

3. What type of point defect when there is

a vacant lattice site with the missing atom relocated to an interstitial point where no atom should be? a. Schottky defect b. Frenkel defect c. Vacancy defect d. Interstitial impurity defect

4. A sample of gas occupies a volume of 50.0 ml at 25C at 1 atm pressure. If the pressure remains unchanged, what will be the new volume at 0C? a. 44.3 mL b. 45.8 mL c. 46.7 mL d. 54.7 mL

5. A man has a concave shaving mirror

whose focal length is 20 in. How far should the mirror be held from his face in order to give an image of twofold magnification? a. 12 in b. 10 in c. 8 in d. 14 in

6. What refers to the quantity of visible

radiation passing per unit time? a. Lumen b. Foot-candle c. Luminous Flux d. Luminance

7. The willingness of an atom to receive

electrons is measured by its ____. a. electronegativity b. electropositivity

c. transmutation d. electron affinity

8. Which thermodynamic property best

describes the molecular activity of a substance? a. External energy b. Internal energy c. Enthalpy d. Entropy

9. What is the length of a parabolic cable

which has a span of 100 m and a sag of 2 m? a. 100.28 m b. 100.08 m c. 100.21 m d. 100.16 m

10. How much distilled water must be added

to a 200 mL flask to obtain a 200 mL of 0.200 M KCl from 0.800 M KCl? a. 130 mL b. 120 mL c. 150 mL d. 140 mL

11. Determine the exact simple interest on

P 5,000 invested for the period from January 15, 1990 to October 12, 1990, if the rate of interest is 18%. a. P 664.21 b. P 666.21 c. P 663.75 d. P 665.75

12. How much heat is needed to melt 5 kg

of ice at 0C? a. 1,656 KJ b. 1,722 KJ c. 1,566 KJ d. 1,823 KJ

13. Light passes at an angle of incidence of

30 from glass into the air. What is the angle of refraction if the index of refraction of glass is 1.50? a. 49 b. 47 c. 51 d. 53

14. Which of the following is NOT true about non-metals? a. Non-metals form positive ions




2

b. Non-metals have high electron affinities

c. Non-metals have negative oxidation number

d. Non-metals are oxidizing agents

15. What style of leadership is used when the leader observes the group and allows them to get on with the job as they see fit, bus acts as an adviser and is available when help is needed? a. Consultative leadership b. Democratic leadership c. Abdictatorial leadership d. Laissez-faire leadership

16. Light from a sodium lamp when passed

through 6000 prism has a minimum angle of deviation of 5120. What is the index of refraction of the glass? a. 1.677 b. 1.652 c. 1.666 d. 1.649

17. What refers to the elastic energy stored

up in a cubic inch of material at the elastic limit? a. Modulus of resilience b. Ultimate resilience c. Unit volumetric strain d. Unit rupture work

18. Silicon is the most commonly used

semiconductor material. What is the electron affinity of silicon? a. 4.03 b. 4.00 c. 4.05 d. 4.07

19. The wall thickness of a 3-ft diameter

spherical tank is 4/17 inches. Calculate the allowable internal pressure if the stress is limited to 9000 psi. a. 178.44 psi b. 180.92 psi c. 176.47 psi d. 182.66 psi

20. A standard 48-canlde lamp placed 36 in

from the screen of a photometer produces the same illumination as a lamp of unknown intensity located 45 in

away. What is the luminous intensity of the water lamp? a. 70 candles b. 75 candles c. 65 candles d. 80 candles

21. When is the effectivity of RA No. 9292?

a. May 24, 2004 b. May 25, 2004 c. May 26, 2004 d. May 27, 2004

22. What type of contract does not need a

consideration? a. Specialty contract b. Simple contract c. Obligation contract d. Verbal contract

23. What material is used for

electroluminescent diodes which can emit either green or red light? a. Gallium arsenide b. Silicon carbide c. Gallium-phosphide d. Selenium

24. A container holds three gases; oxygen,

carbon dioxide and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. Using the equation of Daltons law of partial pressures, what is the total pressure inside the container? a. 4.5 atm b. 9 atm c. 24 atm d. 4 atm

25. A ball is projected at such an angle that

the horizontal range is three times the maximum height. Find the angle of projection. a. 53.13 b. 54.67 c. 52.90 d. 55.21

26. Elements at the center of the periodic

table are known as ____ metals. a. earth b. transition c. alkali




3

d. heavy

27. The rate of change of stress with respect to strain is known as the ____ of the material. a. specific modulus b. tangent modulus c. modulus of toughness d. modulus of resilience

28. What is the reason why a given orbital can hold only 2 electrons? a. Pauli exclusion principle b. Hunds rule c. Aufbau principle d. deBroglies principle

29. The second law of thermodynamics

statement which states that No device can transfer heat from a cooler body to a warmer one without leaving an effect on the surroundings. is a _____ statement. a. Kelvin b. Claussius c. Kelvin-Planck d. Planck

30. What is the range of Poissons ratio of

most metals? a. 0.25 to 0.35 b. 0.35 to 0.45 c. 0.15 to 0.25 d. 0.45 to 0.55

31. At what height above the surface of the

earth will your weight be half your weight on the suface of the earth? a. 5,400 miles b. 5,500 miles c. 5,600 miles d. 5,700 miles

32. A basketball is dropped from a height of

10 m on a horizontal ground. If it rebounds to a height of 7 m, find the coefficient of restitution. a. 0.821 b. 0.836 c. 0.815 d. 0.842

33. A common bar suspended from a

certain support has an axial load of 10

kN. If the bar has a cross-section of 20 mm2, find the stress experienced by the bar in MPa. a. 5 b. 50 c. 5000 d. 500

34. Factor of safety is the ratio of ____.

a. yield stress to working stress b. ultimate stress to yield stress c. working stress to yield stress d. yield stress to ultimate stress

35. What is the power of a diverging lens

whose focal length is -20 cm? a. -10 diopters b. 10 diopters c. 5 diopters d. -5 diopters

36. If the oscillatory motion of a body about

an equilibrium point is reduced by friction, the motion is known as ____. a. natural or free vibration b. undamped vibration c. forced vibration d. damped vibration

37. At what rate must an elevator accelerate

upward to cause a man weighing 80 kg to exert a pressure of 1200 N on the floor? a. 6.62 m/s2 b. 5.76 m/s2 c. 5.19 m/s2 d. 6.12 m/s2

38. An opportunity cost is a/an ____.

a. equivalent annual cost for charity contribution

b. train-in allowance c. salvage value d. imaginary cost representing what

will not be received if a particular strategy is refected

39. When a solid melts,

a. heat leaves the substance b. heat enters the substance c. the temperature of the substance

decreases d. the temperature of the substance

increases




4

40. An engineer borrowed P 300,000 from a lending firm which will be paid after 10 years at an interest rate of 12% compounded annually. If money is worth 8% per annum, how much should be deposited to a bank monthly in order to discharge his debt 10 years hence? a. P 5,185.33 b. P 5,177.32 c. P 5,163.44 d. P 5,174.23

41. A local firm is establishing a sinking fund

for the purpose of accumulating a sufficient capital to retire its outstanding bonds at maturity. The bonds are redeemable in 10 years and their maturity value is P 150,000.00. How much should be deposited each year if the fund pays interest at the rate of 3%? a. P 13,084.58 b. P 13,092.33 c. P 13,067.90 d. P 13,073.22

42. Engineering ceramics refers to

a. non-crystalline materials b. material with plastic properties c. oxides, nitrides and carbides d. material with good thermal

conductivities

43. What interest rate compounded daily is equivalent to 10% effective? a. 0.0312% b. 0.0377% c. 0.0261% d. 0.0211%

44. Determine the elongation in a spherical

in a helical spring composed of 20 turns of 20 mm diameter wire on a mean radius of 90 mm when the spring is supporting a load of 2.5 kN. Use G = 83 GPa. a. 175 mm b. 170 mm c. 160 mm d. 165 mm

45. In nuclear physics, the unit of absorbed

dose is the ____ which defined as one joule per kilogram. a. Curie

b. Bohr c. Bequerel d. Gray

46. What is the unit charge of an alpha

particle? a. +2 b. +1 c. -2 d. -1

47. What type of magnetic behavior has a

large magnetic susceptibility? a. Antiferromagnetism b. Diamagnetism c. Paramagnetism d. Ferromagnetism

48. Sometimes metals are classified as

refractory. The term refractory means ____. a. resistant to heat b. resistant to corrosion c. can be die-cast d. easy to machine

49. What is the most important mechanical

property of ceramics which is the measure of its resistance to crack propagation? a. Toughness b. Creep c. Plasticity d. Ductility

50. What is the pressure due to seawater at

a depth of 500 m below the surface of the ocean? Specific gravity of seawater = 1.025. Density of water = 9810 N/m3. a. 4.65 MPa b. 4.77 MPa c. 4.89 MPa d. 5.02 MPa

51. What is another term for modulus of elasticity in shear? a. Bulk modulus b. Coefficient of rigidity c. Resilience d. Youngs modulus

52. What refers to the rate of which the

temperature disturbance of one part of a body is traveled to another part?




5

a. Thermal fatigue b. Thermal shock c. Thermal spelling d. Thermal diffusibility

53. An ideal gas performs 550 J of work

while losing 150 calories of heat energy. What is the change in internal energy of the system? a. -1150 J b. -1160 J c. -1170 J d. -1180 J

54. Group VIA in the periodic table are the

____. a. Carbon family b. Oxygen family c. Nitrogen family d. Halogen family

55. Which of the following is true about the

periodic table? a. The atomic radii of elements

increase from left to right across a period

b. Acid-forming properties increase moving to the right side of the table

c. Nonmetallic properties are greatest on the right side of the table and decrease to the left

d. First ionization energies increase from left to right across a period

56. How much heat is required to change

the temperature of 3.0 moles of monoatomic ideal gas by 55 K if the pressure is held constant? a. 3300 J b. 3400 J c. 3500 J d. 3600 J

57. An artificial expense that spreads the

cost of an asset over some base is called ____. a. life-cyle costing b. depletion c. amortization d. book value

58. A pendulum of length 4.0 m is pulled

aside and released. Find the period of

the pendulum on the moon. (g = 1.57 m/s2) a. 10 s b. 8 s c. 6 s d. 12 s

59. If a contractor walks off a construction

job, this breach of contract is considered as ____ breach. a. willful b. punitive c. negligence d. obligation

60. A lead block of length 0.5 m, width 3.0

m and height of 0.08 m is subjected to a shearing force of 2.0 x 106 N directed perpendicular to its height. The shear modulus of lead is S = 5.4 x 100 N/m2 a. 3.0 x 10-4 m b. 2.0 x 10-4 m c. 4.0 x 10-4 m d. 5.0 x 10-4 m

61. A homogeneous ball weighing 80 kg has

a diameter of 120 cm. What is its mass moment of inertia? a. 4.910 b. 4.487 c. 4.697 d. 4.228

62. What is the keystone of professional

conduct? a. Courtesy b. Justice c. Integrity d. Honesty

63. What mechanical property of a material

refers to the nominal stress at fracture in a tension test at constant load and constant temperature? a. Working stress b. Ultimate stress c. Yield stress d. Stress rapture strength

64. A candle is held 3.0 inch from a concave

mirror whose radius is 24 inches. Where is the image of the candle located? a. -6 inches b. -4 inches




6

c. -2 inches d. -8 inches

65. Two points in an electric field have a

potential difference of 3.0 volts. What work is required to move a charge of 5.0 coulombs between these points? a. 15 J b. 30 J c. 7.5 J d. 5/3 J

66. A simple steam engine receives steam

from the boiler at 180C and exhausts directly into the air at 100C. What is the upper limit of its efficiency? a. 17.6 % b. 16.8 % c. 18.2 % d. 19.3 %

67. In project management, what refers to

the time that an activity can be delayed without delaying both the start of any succeeding activity and the end of the project? a. Free slack b. Float slack c. Gap slack d. Inactive slack

68. What type of load is not resisted by a

pinned joint? a. Compression b. Moment c. Axial d. Shear

69. A 22.5 mL sample of 5.20 M solution of

nitric acid is diluted to 40.5 mL. Calculate the molarity of the dilute solution. a. 2.66 M b. 2.51 M c. 2.78 M d. 2.89 M

70. In engineering materials, some alloys

are called pH alloys. The term pH stands for ____. a. power of hydrogen b. precipitation hardening c. physical hardness d. proprietary hardness

71. Every point on a wave front may be considered as a new source of disturbance, sending wavelets in forward directions. This is known as ____. a. Huygens principle b. deBrogiles principle c. Daltons principle d. Aufbau principle

72. What is the coefficient of restitution of a

perfectly inelastic collision? a. 0 b. 1 c. Infinity d. -1

73. What quantum number defines the

magnitude of the electrons angular momentum vector? a. Azimuthal b. Magnetic c. Principal d. Orbital

74. A machine costing P 45,000 is

estimated to have a book value of P 4,350 when retired at the end of 6 years. Depreciation cost is computed using constant percentage of the declining book value. What is the annual rate of depreciation? a. 32.25 % b. 33.12 % c. 31.25 % d. 34.32 %

75. Find the work done in overcoming

friction between an object the table, if the object weighs 200 g and slides 80 cm along a horizontal tabletop. The coefficient of kinetic friction is 0.30. a. -0.23 N b. -0.55 N c. -0.42 N d. -0.31 N

76. What is the common type of crystal

defect? a. Point defect b. Line defect c. Surface defect d. Grain boundary effect




7

77. A method of telling when the economic value of one alternative becomes equal to the economic value of another alternative is called ____. a. Break-even analysis b. Cost-benefit analysis c. Accelerated depreciation d. Cost accounting

78. An office equipment costs P 20,000. It

has an estimated life of 5 years. Find its depreciation rate using the straight line method if its scrap value is P 2,000. a. 18 % b. 20 % c. 22 % d. 16 %

79. Calculate the ordinary simple interest on

a P 20,000 loan payable for 9 months and 5 days if the rate of interest is 10%. a. P 1,527.78 b. P 1,533.12 c. P 1,525.55 d. P 1,535.55

80. How many moles of gas are contained

in a 50L cylinder at a pressure of 100 atm and a temperature of 35C? Gas constant = 0.0821 L-atm/mol-K. a. 155 mol b. 166 mol c. 198 mol d. 187 mol

81. How many lb-in/s in 1 horsepower?

a. 6700 b. 6400 c. 6500 d. 6600

82. What is the molality (in mol/kg) of a

solution containing 75.6 g of sucrose (molar mass = 342 g/mol) in 400 g of water? a. 0.577 b. 0.533 c. 0.621 d. 0.510

83. The kinetic energy of a certain moving

body is quadrupled; its momentum is ____ the original momentum. a. the same

b. half c. twice d. quadrupled

84. A planoconvex lens of focal length 5 cm

is used in a reading lamp to focus light from a light bulb to a book. If the lens is 60 cm from the book, how far should it be from the bulbs filament? a. 4.5 cm b. 5.5 cm c. 3.5 cm d. 6.5 cm

85. A point source unshaded electric lamp

of luminous intensity 100 candles is 4 feet above the top of the table. Find the illuminance of the table. a. 5.50 foot candle b. 6.25 foot candle c. 6.50 foot candle d. 5.25 foot candle

86. A large disk is rotating with an angular

speed of 225 rad/s. If the disk uniformly speeds up to 450 rad/s in 25 s, what is the tangential acceleration of the point 2.0 m from the center of the disk? a. 15 m/s b. 20 m/s c. 18 m/s d. 22 m/s

87. An equipment costs P 10,000 with a

salvage value of P 500 at the end of 10 years. Calculate the annual depreciation cost by sinking fund method at 4% interest. a. P 789.22 b. P 791.26 c. P 777.21 d. P 793.44

88. The motor vehicles in Metro manila

produced a total of 1.5 x 106 kg of carbon monoxide each year. This is equivalent to how many moles of carbon dioxide each year? Atomic weight of carbon = 12. Atomic weight of oxygen = 16. a. 5.4 x 105 b. 5.4 x 108 c. 5.4 x 107 d. 5.4 x 106




8

89. What law regulates the operation of the CATV systems in the Philippines? a. E.O. 566 b. E.O. 205 c. E.O. 3846 d. E.O. 59

90. According to R.A. 9292, one of the

qualifications of a member of the Board is being a citizen and residence of the Philippines for at least how many years? a. 3 years b. 1 year c. 5 years d. 2 years

91. What elements by losing one electron?

a. Halogens b. Oxides c. Earth metals d. Alkali metals

92. Which of the following is equicalent of

the unit dyne? a. gram-cm/sec2 b. joules/sec c. kilogram-m/sec2 d. poise/sec

93. In Economics, what is sometimes known

as yield? a. Nominal rate of interest b. Rate of return c. Effective rate of interest d. Rate of investment

94. The modulus of elasticity is the ratio of

____. a. change in volume to original volume b. volumetric strain to uniform stress

intensity c. volumetric strain to Youngs

modulus d. uniform stress intensity to volumetric

strain

95. Most materials failures are due to fatigue failure. The fatigue can occur well ____ of the material. a. above the yield stress b. below the yield stress c. above the ultimate stress d. below the ultimate stress

96. Munts metal is a metal that is wear resistant and less ductile than brass. It is an alloy of ____. a. copper and nickel b. copper and zinc c. copper and tin d. copper and lead

97. What is the unit of entropy?

a. kN-m/K b. kg-m/K c. J/kg-K d. kJ/kg-K

98. When an object is placed 20 inches

from a certain lens, its virtual image is formed 10 inches from the lens. Determine the focal length. a. -10 in b. -20 in c. -5 in d. -15 in

99. What refers to the number of molecular

weight in grams per liter of solution? a. Molarity b. Molality c. PPM d. Formality

100. In which type of organization is the

project manager responsible for completion of the project and is often assigned a budget? a. Matrix organization b. Functional organization c. Market organization d. Projectized organization

END

SUBMIT THIS TEST QUESTION SET

TOGETHER WITH THE ANSWER SHEET TO YOUR WATCHERS. BRINGING THE TEST

QUESTION SET OUT OF THE ROOM WILL BE A GROUND FOR DISCIPLINARY ACTION. LOL

april 2013

Documents