electronics final coaching

8/13/2019 Electronics Final Coaching

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ELECTRONICS FINAL COACHING

1. Desktop and personal computers are alsoknown as ___.ANS. MICROCOMPUTERS

2. Laser beam technology is used for __.ANS. OPTICAL DISKS

3. A bundle of basic software designed to work

together:ANS. SUITE

. !ime"sharing of resources by users isusuallyANS. BASED ON TIME SLICES

#. $anagement of an operating system ishandled by:ANS. THE SUPERVISOR PROGRAM

%. !he process of allocating main memoryseparate from one another is called:ANS. MEMORY MANAGEMENT

&. !he techni'ue whereby part of the programis stored on disk and is brought into memory fore(ecution as needed is called __.ANS. VIRTUAL STORAGE

). Another name for an operating en*ironmentis __.ANS. SHELL

+. ,hich one of the following uses graphicalicons-ANS. GUI

1. An on"screen picture.ANS. ICON

11. !he memory area for programs with highestpriority.ANS. FOREGROUND

12. /rewritten standard file"handling programsare called __.ANS. UTILITIES

13. !he signal that the computer is awaiting acommand from the user:ANS. PROMPT

1. 0 refers to:ANS. OPERATING SYSTEM FOR A NETWORK

1#. /DA stands for:ANS. PERSONAL DATA ASSISTANT

1%. An imaging techni'ue used to measure themagnetic fields produced by electrical acti*ity in thebrain.ANS. MAGNETOENCEPHALOGRAPH

1&. ,hat sensor is used in

magnetoencephalograph-ANS. SUPERCONDUCTING QUANTUMINTERFERENCE

1). $ain program in the operating system.ANS. KERNEL

1+. ,hich of the following splices is 0!butted-ANS. KNOTTED TAP JOINT

2. ,hat nonmetallic material is mostcommonly used to protect wires and cables-ANS. FIBROUS BRAID

21. ,hen a wire is insulated with glass braid orasbestos and re'uires stripping which of thefollowing tools should not be used-ANS. HOT-BLADE WIRE STRIPPER

22. ,hen you solder electrical connectorsplices and terminal lugs what type of solder shouldyou use-ANS. 60/40 SOLDER

23. ,hen noninsulated splices and terminal lugsare insulated what types insulation are mostcommonly used-ANS. RUBBER TAPE AND HEAT SHRINKABLETUBING

2. ,hen a ,estern 4nion splice is used toconnect two wires why should the twisted ends ofthe wires be pressed down as close as possible tothe straight portion of the wire-ANS. TO PREVENT THE WIRES FROMPUNCTURING THE TAPE COVERING

2#. ,hat types of insulation are best suited foruse in a high"temperature en*ironment-ANS. FEP E!TRUDEDPOLYTETRAFLUOROETHYLENE AND SILICONERUBBER

2%. ,hat should be done with the remo*able tipof a soldering gun after it becomes pitted-ANS. FILE THE TIP SMOOTH AND RETIN IT

2&. 5or a gyro to be uni*ersally mounted i t$4! ha*e a total of how many gimbals if any-ANS. TWO

2). A position ser*o system e(hibits a series ofo*ertra*els. !his condition is known by which of the

following terms-ANS. HUNTING

2+. 5or a ser*o system to operate smoothly andefficiently it must ha*e balance between which ofthe following factors-ANS. AMPLIFICATION AND DAMPING

3. !he operating of an accelerometer is basedon what physical property-ANS. INERTIA

31. Amount of precession of a 6 is proportionalto what input factor-

ANS. RATE OF GYRO CASE ROTATION

32. ,hat does the arrow on a synchroschematic symbol indicate-ANS. THE ANGULAR POSITION OF THE ROTOR

33. 7n a properly operating ser*o system whatis the phase relationship between the reference*oltages to the error detector and the demodulator-ANS. IN PHASE ONLY

3. ynchro capacitors are used to pro*idewhich of the following characteristics in a synchrosystem-ANS. IMPROVED ACCURACY

3#. $ultispeed synchro systems ha*e what ofthe following ad*antages o*er singlespeed synchrosystems-ANS. GREATER ACCURACY

3%. During synchro alignment what is thepurpose of the coarse setting-ANS. TO ENSURE A SETTING OF "ERO DEGREESRATHER THAN I#0 DEGREES

3&. !he *oltage used to pre*ent falsesynchroni8ation is known by what term-ANS. STICKOFF VOLTAGE


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3). 7f you find that a synchro has bad bearingswhich of the following actions should you take-ANS. REPLACE THE SYNCHRO3+. 7n what ma(imum number of directions is arate gyro free to precess-ANS. TWO

. /ulse"counting accelerometers are designedfor use only with what type of e'uipment-ANS. DIGITAL COMPUTERS

1. 9ecause its resistance changes *ery littletemperature changes what conductor is best suitedfor use in measuring instruments-ANS. MANGANIN

2. ,hat definition best describes an insulatingmaterial-ANS. A MATERIAL THAT HAS A VERY HIGHRESISTANCE

3. /lastic insulation is normally used for whatle*els of *oltage-ANS. MEDIUM TO LOW

. ,hat is the common name for enamelinsulated wire-ANS. MAGNET WIRE

#. !he preferred method for remo*inginsulation from most types of insulated wire is byusing what tool-ANS. WIRE STRIPPER

%. ,hen is a rattail normally used-ANS. WHEN A BRANCH CIRCUIT IS REQUIREDAND A JUNCTION BO! IS USED TO JOINCONDUIT

&. ,hen a large aluminum terminal lug orsplice is installed why is it 0! necessary to cleanthe aluminum wire-ANS. THE WIRE IS CLEANED BY THE ABRASIVECOMPOUND IN THE LUG OR SPLICE

). ,hat action generally causes a fracturedsolder oint-ANS. MOVEMENT OF THE SOLDERED PARTSDURING THE COOLING PROCESS

+. ,hen a wire is soldered to a connector whyshould the wire be stripped appro(imately 1;32 inchlonger than the depth of the solder barrel-ANS. TO PREVENT BURNING THE WIRE

INSULATION

#. ,hy should a small wattage soldering iron0! be used to solder large conductors-ANS. THE IRON MAINTAIN A SATISFACTORYSOLDERING TEMPERATURE WHILE GIVING UPHEAT TO THE CONDUCTOR

#1. ,hen electrical and electronic componentsare soldered what type of flu( must be used-ANS. ROSIN

#2. ,hat is the most efficient solderingtemperature-ANS. $$0OF#3. !he current gain in a common"collectorcircuit is called __.ANS. GAMMA

#. A method for checking transistor iscumbersome when more than one transistor is badin a circuit-ANS. SUBSTITUTION METHOD

##. A breakdown theory that e(plains the actionthat take place in a hea*ily doped /0"unction with a

re*erse bias of less than # *olts.ANS. "ENER EFFECT

#%. !he arrow in a $5

#&. ,hat pro*ides a timing signaling in a digitale'uipment-ANS. CLOCK

#). A faulty transistor would be identified aswhat le*el of packaging-ANS. LEVEL 0

#+. ,hat is the preferred tool to use to strip ofaluminum wire-ANS. KNIFE

%. !he ability of a gyro to maintain a positionin space is referred to by what term-ANS. PRECESSION

%1. A de*ice that allows the depositing ofmaterial in selected areas of a semiconductorsubstrate but not in others is known as aANS. WAFER MASK

%2. Letters and number stamped on body of an7= ser*e to pro*ide which of the following types of

information-ANS. USE

%3.


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ANS. MICROCIRCUIT MODULE

. !est e'uipment that continuously monitorsperformance and automatically isolates faults toremo*able assemblies is what category ofe'uipment-ANS. ON-LINE

&%. ,hich of the following alloys will meltdirectly to li'uid and ha*e no plastic or semili'uid

state-ANS. EUTECTIC ALLOY

&&. A conformal coating is considered thin if it isless than what thickness-ANS. 0.0&$ INCH&). ,hat ma(imum number of logic gatesshould be e(pected in a large"scale integrationcircuit-ANS. &000

&+. /rotecti*e materials applied to electronicassemblies to pre*ent damage caused by corrosionmoisture and stress are called __.

ANS. CONFORMAL COATINGS

). =utting and peeling is an easy method ofremo*ing which of the following types of coatings-ANS. SILICONE

81. ,hat are the appro*ed methods of

conformal coating remo*al-ANS. MECHANICAL THERMAL ' CHEMICAL

)2. !urret fork and hook terminals aree(amples of what type of termination-ANS. ABOVE-THE-BOARD

)3. ,hat total number of degrees of bend are>a? fully clinched leads and >b? semiclinched leads-ANS. (A) *0 (B) 4$

). t irring the lead during desolderingpre*ents which of the following unwanted results-ANS. SWEAT JOINTS

)#. $ost damage to printed circuit boards occurat which of the following times-ANS. DURING COMPONENT REMOVAL

)%. ,hen remo*ing solder with a solder wickwhere should the wick be placed in relation to the

solder oint and the iron-ANS. BETWEEN THE JOINT AND THE IRON

)&. @isual inspection of a completed repair isconducted to e*aluate which of the following aspectsof the repair-ANS. WORKMANSHIP QUALITY

)). /lug"in D7/s are susceptible to looseningbecause of which of the following causes-ANS. VIBRATION

)+. 5or the remo*al of imbedded !s in which

of the following are free which of the followingmethods is recommended-ANS. PUSH OUT GENTLY

+. ,hen a ! or a D7/ is replaced on a printedcircuit board what type of termination is normallyused-ANS. THROUGH-THE-BOARD+1. eating the leads and lifting them up withtwee8ers is the preferred method of remo*ing whichof the following components-ANS. FLAT PACKS

+2. ,hat is the first step in the repair of burned

or scorched boards-ANS. REMOVING ALL DISCOLORED MATERIAL

+3. !he force between a magnet and a piece offerromagnetic metal that has not been magneti8ed:ANS. IS NEVER REPULSIVE

+. ,hat significant ad*antage in someapplications of a toroidal coil o*er a solenoid is:ANS. THE MAGNETIC FLU! IN A TOROID ISPRACTICALLY ALL WITHIN THE CORE

+#. ,hat is the unit of current-ANS. AMPERE

+%. ,hat is the unit of resistance-ANS. OHM

+&. ,hat is the unit of charge-ANS. COULOMB

+). ,hat is the lightest element-ANS. HYDROGEN

++. ,hat is the ma(imum output *oltage rate ofchange of an op"amp-ANS. SLEW RATE

100. A con*erter that changes ac"*oltage to

another ac"*oltage le*el.ANS. AC-CONVERTER

11. ,hich one is 0! a factor affectingresistance-ANS. MASS

12. utput of 1 if all inputs are .ANS. NOR GATE

13. utput of if all inputs are .ANS. OR GATE

1. utput of 1 if all inputs are 1.ANS. AND GATE

1#. An adder which can add up two binary digitsbut will not produce a carry.ANS. QUARTER ADDER

1%. 9oolean algebra is used primarily by __ tosimplify circuits.ANS. DESIGN ENGINEERS

1&. ,hich of the following terms applies to theoutput of a control transformer-

ANS. ERROR SIGNAL

1). ,hat is the harmonic composition of s'uarewa*e in phase with the fundamental-ANS. ODD HARMONIC

1+. 7nput of the d"flip flop.ANS. DATA AND CLOCK+

11. ,hat gyro characteristic pro*ides the basesof the operation at a rate gyro-ANS. PRECESSION

111. =omponent containing 7=.ANS. MICROCIRCUIT

112. ,hat is the purpose of using toggle fl ip"flops-ANS. TO DIVIDE THE INPUT FREQUENCY BY &

113. ow does the stator recei*e its *oltage-ANS. BY MAGNETIC COUPLING FROM THEROTOR

11. An instrument used to measure relati*ehumidity.ANS. PSYCHROMETER

11#. A structure for solids in which the position

of atoms is predetermined.ANS. CRYSTALLINE


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11%. !he most popular op"amp packages aremetal can )"pin D7/ and the $!. ,hich of thesecorresponds to !"++-ANS. METAL CAN

11&. !he minimum amount of current needed foran =B to conduct continuously.ANS. HOLDING CURRENT

11). !he *oltage across the anode >A? andcathode >C? terminals of an =B when conducting.ANS. HOLDING VOLTAGE

11+. =onfining each program to certain definedlimits in memory is called __.ANS. MEMORY PROTECTION

12. !ransient suppression minimi8es the chanceof __.ANS. DIODE FAILURE

121. 7n !A transconductance is control by __.ANS. BIAS CURRENT

122. ,hat inductor is used at fre'uency +# $8-ANS. AIR CORE

123. Begulator that dissipates less power andless heat.ANS. SWITCHING REGULATOR

124. 6 oscilloscope

ANS. TRIGGER HOLD OFF

12#. et of programs that are betweenapplications software and hardware.ANS. OPERATING PROGRAM

12%. 7nstrumentation amplifiers are used in __.ANS. HIGH,NOISE ENVIRONMENT

127. ,hat type of indicating instrument is

installed in the stator circuit of synchro system-ANS. AN OVERLOAD INDICATOR

12). ___ is the process making a materialpassi*eE in relation to another material prior tousing the materials together.ANS. PASSIVATION

12+. 6 higher fre'uency 6ANS. RADIO FREQUENCY BRIDGE

13. 7t sometimes known as $a(wel l",einbridge. 6ANS. MA!WELL BRIDGE

131. elf"inductance 6 capacitance andresistance6ANS. OWEN BRIDGE

132. A graph of thermodynamic properties of

moist air at a constant pressure such as wet"bulb

temperature and dry"bulb temperature.ANS. PSYCHROMETRIC CHART

133. !he liberation or absorption 6 when anelectric current flows from a warmer to a cooler partof a conductor is called __.ANS. THOMSON EFFECT

134. ,hich of the following terms describes the

first remainder when con*erted to decimal numbersto other bases-ANS. LSD

13#. ,hat causes the process called unctionrecombination to occur when 0 and / materials areoined together-ANS. THE DIFFUSION OF ELECTRONS ANDHOLES MOVING ACROSS THE JUCTION INTOTHE TWO MATERIALS

13%. ,hich of the following will apply to amo*ing coil instrument-ANS. EVEN SCALE MEASURING DC

13&. ,hich of the following will apply to amo*ing coil rectifier instrument-ANS. EVEN SCALE MEASURING AC

13). ,hich of the following will apply to amo*ing iron instrument-ANS. UNEVEN SCALE MEASURING AC AND DC

13+. A method of cur*e f itting using l inearpolynomials hea*ily employed in mathematicsparticularly numerical analysis and numerousapplications including computer graphics.ANS. LINEAR INTERPOLATION

1. !he *oltage across the anode and cathodeterminals of the =B when conducting.ANS. HOLDING VOLTAGE

141. ,hat are e(amples of acceptor impurities-ANS TRIVALENT IMPURITIES

142. ,hat are e(amples of tri*alent impurities-

ANS. BORON GALLIUM INDIUM

13. !he ma(imum output *oltage swing of anop"amp-ANS. VSAT TO ,VSAT

1. !he current needed at the input of an op"amp to operate it normally.ANS. INPUT BIAS CURRENT

145. !he most e(tensi*ely used semiconductor.

ANS. SILICON

1%. ,hat current flow in a semiconductor is dueto the applied electric field-ANS. DRIFT CURRENT

1&. !he purpose of installing thyrectors.ANS. TO PROTECT THE CIRCUITS FROM HIGHVOLTAGE SURGES

1). =onfining each program to certain definedlimits in memory is called ______.ANS. MEMORY PROTECTION

1+. !ransient suppression minimi8es the chanceof _____.ANS. DIODE FAILURE

1#. 7n !A transconductance is controlledby_____.ANS. BIAS CURRENT

1#1. ,hat inductor is used at fre'uencies of +#$F.ANS. AIR CORE

1#2. Begulator that dissipates less power andless heat.ANS. SWITCHING REGULATOR

1#3. /eriod of time which the oscilloscope cannottrigger.ANS. TRIGGER HOLD OFF

154. A good form of inductor at 5$

ANS. AIR CORE

155. et of programs that lies between

application software and the computer hardware.ANS. OPERATING PROGRAM


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156. 7nstrumentation amplifiers are used in____.

ANS. HIGH NOISE ENVIRONMENT

1#&. ,hat type of indicating de*ice is usuallyinstalled in the stator circuit of a tor'ue synchrosystem.ANS. AN OVERLOAD INDICATOR

1#). ____ is the process of making a material

passi*eE in relation to another material prior tousing the material together.ANS. PASSIVATION

1#+. 7n the conte(t of corrosion _____ is thespontaneous formation of a hard non reacti*esurface film that inhibits further corrosion. !his layeris usually an o(ide or nitride that is a few moleculesthick.ANS. PASSIVATION

1%. !wo conductors with insulator betweenthem is called_____.ANS. CONDENSER (OLD NAME)/ CAPACITOR

(NEW NAME)

161. =hemical reactions that release energy are

called e(othermic reactionsG ____ is an e(ample ofe(othermic reaction.ANS. FREE"ING

1%2. !his bridge is often used in laboratories tomeasure both capacitances and inducti*e circuits athigher fre'uencies.ANS. RADIO FREQUENCY BRIDGE

1%3. 7s sometimes called $a(well H wien bridgeand is used to measure an unknown inductance with

a standard capacitance.ANS. MA!WELL BRIDGE

1%. A four arm alternating current bridge usedto measure self inductance in terms of capacitanceand resistanceG bridge balance is independent offre'uency.ANS. OWEN BRIDGE

1%#. A graph of the thermodynamic properties ofmoist air at a constant pressure such as wet bulbtemperature and dry bulb temperature.ANS. PSYCHROMETRIC CHART

1%%. !he liberation or absorption of heat when anelectric current flows from a warmer to a cooler partof a conductor is called ______.ANS. THOMSON EFFECT

1%&. A certain condition wherein a nucleon canbe stimulated to emit a *ery sharply defined beamsof gamma rays.ANS. MOSSBAUER EFFECT

1%). ,hich of the following type of teste'uipment is classified as off"line automatic teste'uipment.ANS. VERSATILE AVIONIC SHOP TEST (VAST)

1%+. ,hich of the following terms describing thefirst remainder when con*erting decimal number toother bases.ANS. LSD

170. ow do you connect a *oltmeter in a

circuit-ANS. IN PARALLEL

171. ow do you increase the range of a

*oltmeter-ANS. INSERT A HIGH RESISTANCE IN SERIESWITH THE METER

1&2. As a rule of thumb power rectifier canoperate satisfactorily with front to back ratio or theback to front ratio of.ANS. 0 TO

1&3. As a rule of thumb signal diode can operatesatisfactorily with front to back ratio or the back tofront ratio of.ANS. %00 TO

174. ,hat maintains a more constant speed

under *arying load conditions than a series motor.ANS. SHUNT MOTOR

1. A filter which allows a narrow band offre'uencies to pass through the circuit and reects orattenuates fre'uencies which are either higher orlower than the desired fre'uency.ANS. BANDPASS FILTER

1&%. A circuit that is used to block the passage ofcurrent for a narrow band of fre'uencies whileallowing current to flow at all fre'uencies abo*e or

below the this band. !his type of filter is also knownas a band suppression or band reect.

ANS. BANDSTOP FILTER

177. ,hat theorem is used in sol*ing electrical

circuits with se*eral *oltage sources-ANS. SUPERPOSITION

178. ,hat is the process of determining the

magnitude of something in terms of a recogni8edstandard-

ANS. MEASUREMENT

1&+. A *ariable positi*e regulator.ANS. %

180. ,hat is the efficiency of a full wa*e

rectifier-ANS. #.&

1)1. !he *alue at any instant of time.ANS. INSTANTANEOUS VALUE

1)2. 7n carbon 8inc battery 8inc ser*es as the___.

ANS. NEGATIVE CATHODE

183. !he electronic the electronic transfer from

one stage to another is called_____.ANS. COUPLING

184. ,ho disco*ered the magnetic effect-

ANS. HANS CHRISTIAN OERSTED

1)#. ne coulomb of charge has how manyelectrons.ANS. 6.&$ !01#

1)%.


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ANS. &&

1+1. An ad*antage of alkaline cell o*er a 8inccarbon cellANS. AN ALKALI CELL WORKS AT LOWERTEMPERATURE

192. !o deposit highly reacti*e material into a

substrate which of the following method is used-ANS. VACUUM EVAPORATION

1+3. ,hich breakdown theory is e(plains theaction that takes places in a hea*ily doped /0unction with a re*erse bias below # *olts.ANS. "ENER EFFECT

1+. !he 4I! conducts from base1 to >a? whatpoint when it is forward biased and from >b? whatpoint to base 2 when it is re*ersed biased-ANS. (A) EMITTER (B) EMITTER

195. !he $5

it operates in either the depletion mode or theenhancement mode. !he depletion mode $5a?uses what type of bias and >b? has what type ofdoped channel to cause a depletion of currentcarriers in the channel-ANS. (A) REVERSE (B) HEAVILY1+%. ,hich of the following circuits that isre'uired in a multispeed ser*o system is 0!re'uired in a single speed ser*o system-ANS.SYNCHRONI"ER

1+&. ,hich of the following de*ices can be usedas a position sensor in a ser*o system-ANS. POTENTIOMETER

1+). 7n &L(((L means

ANS. LOW POWER SCHOTTKY

199. !he si8e of empty folder is appro(imately

ANS. KB

2. ,hich is not a solid-ANS. SUPERCRITICAL

21. A compound of the elements gallium andarsenic used in the manufacture of de*ices such asmicrowa*e fre'uency integrated circuits monolithicmicrowa*e integrated circuits infrared Lb? what thickness-ANS. (A) & INCHES (B) 0.0-0 .0&

21%.


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ANS. THERMAL INERTIA

22&. A battery consist of aANS. NUMBER OF CELLS

22). ,hat term is used to describe currentpulses that flow in the same directionANS. PULSATION DIRECT CURRENT

22+. ,hich of the following test e'uipment is

most accurate for measuring D= *oltagesANS. DIFFERENTIAL VOLTMETER

23. 7n series mound generator running atconstant speed as the load current increasesANS. THE TERMINAL VOLTAGE INCREASES

231. ,hat type of bias is constant and impro*es

thermal stabilityANS. COMBINATION BIAS

232. !he greater the internal resistance of a cellANS. THE LESS TERMINAL POWERDISSIPATION

233. A function tableANS. IS LIKE A TRUTH TABLE FOR SEQUENTIALCIRCUITS

23. a? ,hat type of 7= but >b? do 0!penetrate the substrate in what type of 7=ANS. (A) DIFFUSED (B) EPITA!IAL THE ENDUSERS AND THE NETWORK

23#. @ibrating reed meters and mo*ing disc

meters are primarily used to measure which of thefollowing *alues:ANS. THE ROTATIONAL SPEED OF THESYNCHRONOUS

236. ,hat are the 2 general classifications of

synchro system-ANS. TORQUE AND CONTROL

23&. ,hy is flu( used in the soldering process-Ans. IT ACTS AS A CLEANING AGENT TOREMOVE O!IDE

23). ,hat type of A= motor uses a combination

of inductance and capacitance to apply out"of"phasecurrents to the start windings

ANS. SPLIT-PHASE INDUCTION

23+. !he ability of a spectrum analy8er to resol*esignals is limited by which of the following factorsANS. THE NARROWEST BANDWIDTH OF THESPECTRUM ANALY"ER

240. =apacitance is a ration of:

ANS. POTENTIAL DIFFERENCE BETWEENPLATES TO THE THICKNESS

21. ,hy is a lacing shuttle used whenconductors are laced in bundlesANS. IT HELPS PREVENT THE CORD OR TAPEFROM FOULING

22. !he process of causing the pressure in ali'uid filled container to be reduced below the *aporpressure of the li'uid causing the li'uid to e*aporateat a lower temperature than the normalANS. VACUUM EVAPORATION

243. $aterials that are engineered materials

made from two or more constituent materials madewith significantly different physical or chemicalproperties which remains separate and distinct on amacroscopic le*el within the finished structure.ANS. COMPOSITE MATERIAL

2. @acuum e*aporation and cathode sputteringare two methods used to produce which of thefollowing types of componentsANS. THIN FILM

2#. ,hich of the following types of synchrode*ices pro*ides a mechanical output-ANS. TORQUE RECEIVER

2%. ,hat is the most common range of *alueselected for a power supply choke-ANS. -&0 HENRIES

2&. An alternator using a gas turbine as a primemo*er should ha*e what type of rotor-ANS. TURBINE DRIVEN

2). Befers to the total opposition to currentANS. IMPEDANCE

2+. ,hich of the following is an ad*antage ofusing a current probe-

ANS. IT SENSES CURRENT BY INDUCTIONWITHOUT BEING CONNECTED DIRECTLY INTOTHE CIRCUIT

2#. 7f the flu( per pole of an A= generator isincreased the speedANS. DECREASES

2#1. !he number of pole pairs re'uired toestablished a rotating magnetic field in a multiphase

motor stator is determined by which of the followingfactors-ANS. THE NUMBER OF PHASES

2#2. 7n most alternators the output *oltage iscontrolled by adusting theANS. FIELD VOLTAGE

2#3. !he starting tor'ue a simple s'uirrel cagemotor is ____ANS. LOW

2#. ,hen an un biased pn uction formed a________ e(ists

ANS. CONTACT POTENTIAL

2##. All components and interconnection areformed on or within a single substrate in which of thefollowing unitsANS. INTEGRATED CIRCUIT

2#%. 7n a three"phase induction motor which isfalseANS. AS THE ROTOR IS LOADED THE SLIPDECREASES

2#&. Assemblies are made up


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261. ,hich has the greatest effect on the figure

of merit on the circuit-ANS. RESISTANCE

2%2. /0 unction are protected fromcontamination during the fabrication process bywhich of the following materialsANS. O!IDE

2%3. A *oltmeter should be connected in an

electrical circuit in what manner-ANS. PARALLEL TO THE LOAD

2%. ,hich of the following configurationse(tends the range of a *oltmeter-ANS. A RESISTOR IN SERIES WITH THE METERMOVEMENT

265. ,hat is normally the front"to"back ration of

a power rectifier-ANS. 02

2%%. ,hat is the normally the front"to"backration of a signal diode-ANS. %002

2%&. !he number of characters in a recordANS. RECORD LENGTH

268. !he range sweep in a range gate generator

is started at the same time the transmitter fires.ANS. SYNCHRONI"ER2%+. 7n a pulse radar system what componentcontrols timing throughout the system-ANS. SYNCHRONI"ER

2&. !he fre'uency"measuring capability a digitalmultimeter can be e(tended using which of thefollowing de*ice.ANS. AN RF PROBE

271. 7nterconnection of two or more branches.

ANS. NODE

2&2. A node with no di*ision of currentANS. SIMPLE NODE

2&3. A node in which C=L is applicable.ANS. PRINCIPAL NODE

2&. An L= bridge that can measure self

inductance.ANS. MA!WELL-WIEN BRIDGE

2. ,hich of the following terms is defined asthe amount of load a machine can turn-ANS. TORQUE

2&%. !he 4I! has which of the followingad*antage o*er the con*entional transistor-ANS. INCREASED TEMPERATURE STABILITY

2&&. A module which is difficult to repair because

it is completely imbedded in solid material is onewhich has been___ANS. ENCAPSULATED

2&). ow should a single lace be started-ANS. WITH A SQUARE KNOT AND TWOMARLING HITCHES

279. ,hich of the following will apply to a

mo*ing coil instrument-ANS. EVEN SCALE MEASURING DC


mo*ing coil rectifier instrument-ANS. EVEN SCALE MEASURING AC


mo*ing iron instrument-ANS. UNEVEN SCALE MEASURING DC/AC

2)2. An instrument constructed to measure thenumber of tons within a medium >which we willconsider to be gaseous. 9ut can also be solid orli'uid?ANS. IONI"ATION CHAMBER

2)3. A brushless synchronous electric motorthat can di*ide a full rotation into a large number ofsteps.ANS. STEPPER MOTOR

2). A method of cur*e f itting using l inearpolynomials hea*ily employed in mathematicsparticularly numerical analysis and numerousapplication computer graphics.ANS. LINEAR INTERPOLATION

2)#. !he simplest of all gas fil led radiationdetectors and is used for the detection or

measurement of ioni8ation radiation.ANS. IONI"ATION CHAMBER

2)%. !he semiconductor doping impurit iesarsenic antimony and bismuth are classified aswhat type of impurities-ANS. PENTAVALENT

electronics final coaching

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