Electronics Review Guide

8/12/2019 Electronics Review Guide

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QUESTIONS ANSWERS

1. An RS flip-flop will not change in state 0, 02. Year when Einstein first predicted the fact that there

should be two kinds of emissions, spontaneous andstimulated

1917

3. The maximum output voltage swing of an op-amp? +VSAT TO VSAT4. Every boiling point of a substance.. volume pressure 1 atmosphere5. in NAND RS flip flop, to set the output, the input R=____,

S=_______

1,0

6. How many inputs of summing amplifier 2 or more7. 3X3 ROM 3 datawords of 3 bits

each

8. No. of interval in automatic welding 5 intervals9. It is a fixed negative voltage regulators commonly used in

the industry.79xx series

10.A meter sensitivity control in a test equipment wouldprobably be

a linear taperpotentiometer

11.Not a characteristic of CMOS chips Ability to handleextremely high power

12.Turret, fork, and hook terminals are examples of what typeof termination?

above the board

13.Converts AC to another AC level ac converter14.Which impurity is added to produce a P-Type acceptor15.Another term for Trivalent electrons Acceptors16.The speed in which the processor can find a data Access time17.A converter that changes ac-voltage to another ac-voltage

level.AC-CONVERTER

18.Register collector Accumulator19.In a robotic system, it is the capability of the manipulation

to position the end-effector at a specific pre-determined

location is space upon getting instructions from thecontroller

accuracy

20.A 741C op-amp contains active-load resistor21.The function of the rheostat in ohmmeters is to compensate

___.Aging Batteries

22.In robotics, an actuator that exerts a pulling force andfunctions similar to that of a human arm is:

Air Muscle

23.Many forms /different arrangement of crystal Allotropy24.The ability of a material to exist in more than one lattice Allotropy25.For high current and high voltage applications,

____________ transistors are commonly used.alloy

26.current gain of common-base Alpha27.consists of LED and Photo diodes An optoisolator28.Oscilloscope can read/measure Analog voltage29.Solid state device w/c only gives a 1 output if all inputs

are also 1AND Gate

30.Robots or machine that resemble human android31.A male humanoid is called android32.Two ways to turn off an SCR are forced commutation and

_____.anode current interuption

33.Most popular method of turning off an SCR- Anode interruption34.Constructed the first complete system of formal logic aristotle


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35.An interconnected set of links and powered jointscomprising a manipulator that supports or moves a wrist,hand or end effector.

arm

36.Reaction of Alternator Armature Reaction37.An oscillator that uses a transformer in parallel with a

capacitorarmstrong oscillator

38.Reverse voltage greater than 5V Avalanche Effect39.Voltage higher than forward break-over voltage in reverse

bias condition

Avalanche effect

40.A traveled path in space, usually referred to as a lineardirection of travel in any of three dimensions.

axis

41.Electrical connection common to all segments of an LCD Back plane42.What type of filter is used to block the passage of current

for a narrow band of frequency while allowing current toflow at all frequencies above or below this band?

band reject filter

43.The bandstop is only in narrow band Band Rejection Band44.Two types of bolometer Barretter and Thermistor45.Error in ohmmeter Battey aging46.Chromium Crystal Formation BCC (Body Centered

Cubic)47.What is the SI unit of activity? becquerel48.The highest voltage diode is the ___ diac. Bi-directional trigger49.It is a kind of op-amp that uses LF571A BI-FET Op-amp50.LM175A BIFET Transistor51.Commonly used as control element in regulator BJT52.Ground Fault Locator Blavier's Test53.Carbon welding disadvantage Blow Holes54.SCR is fired and conduction band Both PNP and NPN55.The closed-loop system that uses BIBO algorithm is ___. Bounded with bounded

input

56.A normal way to turn on a DIAC is by _____ voltage. break over57.Use in switching large current Break-over devices58.It is the positive anode voltage at which a SCR switches into

the conductive state with gate circuit openBreakover Voltage

59.The resistance of a semiconductor is known as bulk resistance60.Natural resistance of PN Junction Bulk Resistance61.Used to clean relays Burnishing tools62.Advantage of rheostat over potentiometer Can carry large current63.Advantage of alkaline batteries Can operate in low temp64.Disadvantage of CMOS cannot handle high power65.Increases when all other capacitors are equal capacitance66.

What happens when a Capacitance has a negativetemperature coefficient, as temperature increases capacitance decreases

67.The spacing between plates in a capacitor is made smallerall other things being equal the

capacitance increases

68.Stores energy in electric field capacitor69.Is the feedback element in an integrating op amp Capacitor70.kind of resistor with color code bands Carbon Composition

Resistor

71.Types of resistor with no reactive element Carbon compositionresistor

72.Visual representation of signals cathode ray oscilloscope


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73.Transmission system of robots, constant gear ratio chain drives74.Inductor used to impede flow of a pulsating DC Choke75.Which of the following has no insertion error Clamp-meter76.Most fidelity type of amplifier Class A77.Most efficient type of amplifier Class C78.Measure for pulse signal Class D79.What provides a timing signaling in a digital equipment? clock80.Edge timing on multiple clock inputs Clock Skew81.Output to the common base configuration Collector82.No of commutator segments that coil83.Tapped capacitance colpitts84.What type of bias is constant and improves thermal stability combination bias85.What configuration has the lowest input impedance common collector86.A circuit that can produce the greatest signal gain

(amplification factor)common source circuit

87.The BJT or FET used as multivibrator is arranged in the ___configuration.

Common-emitter orCommon-source

88.What is the most suitable motor for elevators? Commutativelycompounded

89.Part of a dc generator that convert ac to dc voltage Commutator90.What OP-AMP compares voltages? Comparator91.319 IC 14 pins Comparator92.Function of rheostat Compensate aging of

battery

93.It determines the cut-off frequency of an inverting amplifier compensating capacitor94.Imaging of positron emitter using multiple layer of silicon

detectorCompton Camera

95.Protective materials applied to electronic assemblies toprevent damage caused by corrosion,moisture, and stressare called __.

conformal coatings

96.Characterizes a DC electromagnet constant polarity97.The heart of the operation in a robotic system is the _____ controller98.During welding sub-interval, no current flowing Cool Sub-interval99.The electronic transfer from one stage to another is

called_____.coupling

100. Shell transformer is...because it has themaximum__________ connection

coupling

101. The type of tube that is used to display signals in anoscilloscope High power-wire wound resistor

CRT

102. Unit of radioactivity Curie103. Unit of automatic work in robot Cycle104.

The common type of meter movement in a measuringinstrument D Arsonval

105. other name for permanent magnet moving coil Darsonval106. It is the current through the photodiode when it is

operated in photoconductive mode in the absence of light.dark current

107. The current sensing mechanism in DC multimeters iscalled ___.

D'Arsonval Movement

108. Disadvantage of mercury cell can damage environment109. The progressive decay with time in the amplitude of

the free oscillation in a circuitDamping

110. Input of the d-flip flop. data and clock


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143. Most Popular actuator Electric Motor144. High temperature metals like columbium Electron Beam welding145. It is required for the electron to stay in its orbits Electron Energy Level146. Is the study of electronic devices Electronics engineering147. A device used to measure electrostatic force is an electroscope148. CRT (cathode Ray tube) uses what type of

deflections?Electrostatic deflections

149. element with 4 valence electron are called elemental semiconductor150. A module which is difficult to repair because it is

completely imbedded in solid material is one which has beenencapsulated

151. Lenz law is a consequence of Law of conservation of_______

energy

152. A semiconductor memory device that can beprogrammed

EPROM

153. IC type that is physically removed from a circuit tohave its memory cont

EPROM

154. Output of feedback Error155. Execute by ALU E-time156. Which of the following alloys will melt directly to

liquid and have no plastic or semiliquid state?

eutectic alloy

157. ALU E time Execute158. A chemical reaction wherein energy is released during

the process is a/an __________ reactionexothermic

159. Icon used for display Extension160. first temperature scale to gain acceptance fahrenheit161. An intermittent and non symmetrical ac like that

obtained from the secondary winding of an induction coilFaradic current

162. Solid State device FET163. Dc motor changes speed through Field strength164. In most alternators, the output voltage is controlled

by adjusting the

field voltage

165. In a power supply what comes after rectifier filter166. Smooth the output voltage or signal of a regulator filter167. Most unstable bias Fixed bias or base current

biased

168. fast memory storage Flash drive169. An emerging technology that provides non-volatile

memory chips.flash memory

170. Heating the leads and lifting them up with tweezers isthe preferred method of removing which of the followingcomponents

flat packs

171.

Discharges gasses Fluorescent Lamp172. Oscillator uses ______ to maintan or sustains itsoscillations.

Flywheel Effect

173. Being controlled at the potentials between anode inan oscilloscope

focus

174. robot part connecting elbow and wrist forearm175. The memory area of programs with highest priority is

theforeground

176. Which of the following is the oldest welding process Forge welding177. bias to make LED have luminance forward bias178. A lacing shuttle on which the cord can be wound fouling


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keeps the cord from______

179. Oldest type of welding FOW (Forge Welding)180. Referred to as the escaped valence electrons free electrons181. Chemical reactions that release energy are called

exothermic reactions; ____ is an example of exothermicreaction.

freezing

182. Parameter that vary with AC but not with DC frequency183. The Cray I supercomputer uses what semiconductor

material

Gallium Arsenide

184. An LED that emits green light GaP185. Control grid tube corresponds to ____ of FET Gate186. Original file Grandfather file187. What is the minimum change in code Gray Code188. Law that states... processing power of a computer is

proportional to the square of its costGroshs Law

189. Ability of robot for the safety of human guard190. A device that is commonly used as an oscillator at

microwave frequenciesgunn diode

191. Microwave oscillation that occurs in a small block ofntype gallium arsenide when a constant Dc voltage above acritical value is applied to contracts on opposite face

Gunn effect

192. A female humanoid is called gynoid193. Supervisory program, Handles management

operating systems

194. Who discovered the magnetic effect? Hans Christian Oersted195. In a computer system, the central processing unit is

part of _____hardware

196. Tuned circuit with tapped coil Hartley197. the advantage of ICs compared to discrete

componentsHas higher attainableswitching speed

198.

AC Bridge Hay Bridge199. Measure resistance and inductance Hay bridge200. in welding process interval, the process where there

is a welding current flowheat-sub interval

201. An AC bridge which is used to measure mutualinductance

Heaviside bridge

202. The common collector configuration has ______ High Input Resistance203. Instrumentation amplifiers are used in __. high noise environment204. we install thyrector device, to protect the drive from high voltage205. Series Motors Highest torque206. after weld interval hold interval207.

What is the minimum current in an SCR to keep iton? holding current

208. carrier is transferred from atom to atom Holes are opposite thedirection of electrons

209. Robot movement with a single leg and small foot Hopping210. Algorithm used in robotics on dynamic walking for

one legged robothopping

211. The fastest unsaturated logic gate htl212. Robot designed from the ability of human Humanoid213. Low speed alternators are driven by hydraulic turbines214. Used to drive low-speed alternators Hydraulic Turbines


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215. Noise immunity of Op-amp is due to Hysteresis216. Microwave Diode IMPATT Diode217. Refers to the total opposition to current. IMPEDANCE218. The Ultimate goal of electrode coating is ______. Improve Bead Quality219. Wire wound resistor is used ______ In High Power DC circuits220. Ferromagnetic core is placed in an inductor mainly to: Increase Inductance221. With permeability tuning, moving the core further

into a solenoidal coil:Increases the inductance

222. As power factor increases, active power also ___. Increases223. Putting large size capacitor in power supply dc will Increase the power

output voltage

224. Crystal lattice, used to ___ crystal orientation Indices225. Examples of Trivalent Impurities are Boron, Gallium

and ________.Indium

226. In a series ac-circuit, if the line frequency is morethan the resonant frequency, the circuits behaves as

Inductive

227. Stores energy in magnetic field inductor228. Monitor that capture high speed moving image Interlaced monitor229. What converts DC to AC? inverter230. Atom that has unbalanaced charges Ion231. The toroid core is better than the solenoid because It confines the magnetic

flux

232. A disadvantage of mercury cell and batteries it pollutes theenvironment.

233. When the control unit gets an instruction it is called I-Time234. When the power is applied briefly in controlled bursts,

the motor is said tojogged

235. The phenomenon whereby current in a gas changesas the result of irradiation by visible light is called

Joshi Effect

236. Node Form between component Junction237. Connection between circuit elements Junction238. Who coined the term robot? Karel Capek239. What is the bridge used to measure low resistances Kelvin Bridge240. Main program for operating systems Kernel241. What is the preferred tool to use to strip of aluminum

wire?knife

242. To compensate eddy current loss Laminating the core243. Parallel Lap winding244. Fastest turn off time LASCR245. The most complex to produce and difficult to repair

printed circuit boards are those made using which of the

following methods

layer build up

246. can be seen in an interruptible power supply lead acid batteries247. States that the polarity of the induced voltage will

oppose the change in magnetic flux causing the inductionLenz's Law

248. Regulator dissipate less energy therefore Less heat249. Metal-film resistor has________ than wire-wound less reactance250. A faulty transistor would be identified as what level of

packaging?level 0

251. Amplifiers that add or subtract a known voltage fromthe input in order to compensate for DC offset voltages.

Level Shifters

252. ______ is peculiar to non-linear system Limit Cycle


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253. A type of resistor, or combination of resistors, wouldyou use as the meter-sensitivity control in test instrument,when continuous adjustment is desired

Linear taperpotentiometer

254. What determines the amount of slip in an inductionmotor?

load

255. Used in Stereo CD Player Logarithmic TaperPotentiometer

256. Another name for closed system loop257. The starting torque a simple squirrel cage motor is

____low

258. Advantage of a non-servo controlled robot Low Cost259. What is an advantage of CCO over VFO? Low drift260. The slip speed of an induction motor is 100% until

the rotor moves and then falls to a ____.low value

261. uses active gases MAG262. What is the common name for enamel insulated wire? MAGNET WIRE263. Relay is a Magnetic Actuator264. tracks are parallel to the edges Magnetic audio tape265. inductor store energy in magnetic field266. Generators produce changing ______ Magnetic Field267. A place in a magnet where repulsion and attraction

take placeMagnetic field

268. Maximum magnetic line in a magnet Magnetic Pole269. Another name for primary storage Main Storage270. PN Junction Diode Max Forward Voltage and

PIV

271. not a computer classification maxicomputer272. Advantage of shell wound transformers Maximum Coupling273. A four-arm ac bridge used to measure inductance

against a standard capacitanceMaxwell bridge

274. What is the process of determining the magnitude ofsomething in terms of a recognized standard? measurement275. Maxwell is used in measuring Medium Inductance276. Plastic insulation is normally used for what levels of

voltage?MEDIUM TO LOW

277. Below temp of superconductivity nagigingdiamagnetic

Meissner Effect

278. Reject magnetic field Meissner Effect279. Strongly interacting boson that is a hadron with

integer spinmeson

280. ______ resistor is less reactive than wire wound Metal Film281.

Used as the insulating material or dielectric in anelectric ion mica

282. Used as the dielectric material in high voltagetransformers.

mica

283. Electromagnetic induction Michael Faraday284. Component containing IC micro circuit285. Desktop and personal computers are also known as

___.microcomputer

286. AC welding cannot use ______ welding MIG (Metal Inert Gas)287. Ac welding cannot be used MIG Welding288. Equivalent voltage for voltage sources w/ series Millman's theorem


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resistance parallel to each other

289. Actuator maintains its position as long as it can Momentary Position290. An IC circuits is generally made of monolithic291. A certain condition wherein a nucleon can be

stimulated to emit a very sharply defined beams of gammarays.

MOSSBAUER effect

292. Cheapest, most rugged material for analog meter Moving iron galvanometer293. Process involving two or more CPU Multiprocessing294. The electron has an electric charge that is Negative295. Op amps uses ________. Negative feedback296. The force between a magnet and a piece of

ferromagnetic metal that has not been magnetizednever repulsive

297. Noise figure increase Noise Factor298. Weak signal amplifier, most important factor Noise Figure299. Output of 1 if all inputs are 0. NOR Gate300. First graphic picture motion Not interlaced301. What is the harmonic composition of square wave in

phase with the fundamental?odd harmonic

302. Left side of the pinch off region Ohmic region303. Non-servo basic feature Only move on betweenmechanical stoppers304. Main advantage of serial adder Only one full adder is

required

305. The first byte of machine language instruction is: Op-code306. Bridges application program and computer hardware operating program307. Photodiode and LED are combined in a single diode optoisolator308. Output of 0 if all inputs are 0. OR Gate309. A limitation of magnetic tape as a method of storing

dataOrganized sequentially

310. Compensating capacitors prevents op amp oscillation311. Measuring device that has attenuator at the input oscilloscope312. ______ welding projection is the most hazardous Overhead313. Flux is used in the soldering process because it acts

as a cleaning agent to remove____oxide

314. A voltmeter should be connected in an electricalcircuit in ______ to the load?

parallel

315. Is the process making a material passive inrelation to another material prior to using the materialstogether.

passivation

316. Referring to the maximum weight of a robot cancarry

Payload

317.

Computers that allow hand-written input are ___. Pen-Based318. Arsenic, Antimony, Bismuth Pentavalent319. When the wave is out of phase the frequency is still

the samePeriod remain the same

320. Equipment that's used in conjunction with robots fora complete robot system

Peripheral Equipment

321. A substance with a high retentivity is best suited formaking a

permanent magnet

322. The increase in conductivity of an illuminatedsemiconductor junction

Photoconductive effect

323. A light activated diode photodiode


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324. Uses quartz crystal to determine frequency fuel cell Pierce Oscillator325. Maximum reverse voltage of a diode before entering

the Zener regionPIV

326. Largest voltage applied without irreversible damage PIV327. Wine glass design Plasma Arc328. Used in glass welding Plasma Arc welding329. Hole moves from Plus to Minus330. Used in high voltage environment / applications Porcelain331. In electrical power distribution, what insulator is

generally used?Porcelain

332. Kind of capacitors extensively used in RF andmicrowave and mostly manufactured by SMD

Porcelain Capacitor

333. charge of proton positive334. The ability of a gyro to maintain a position in space

is referred to by what term?precession

335. What is the process used in cold welding? pressure336. Another name for memory Primary storage337. A node in which KCL is applicable. principal node338. An instrument used to measure relative humidity. psychrometer339. What does a power supply without a filter produce pulsating DC340. Gas shielding base used in TIG welding Pure Argon341. For the removal of imbedded TOs in which of the

following are free, which of the following methods isrecommended

push out gently

342. Instruments used to measure exceeding the mercurythermometer

Pyrometer

343. Variation in no. of incident photon Quantum detector344. Limiting the photons Quantum detectors345. An adder which can add up two binary digits but will

not produce a carry.quarter adder

346. The most stable type of oscillator circuit uses a quartz crystal347. bridge used in high frequency Radio frequency bridge348. A type of sawtooth waveform that slowly increase

and abrupt decreaseRamp waveform

349. The scattering of low-energy electrons by atoms ofnoble gases is called ___.

Ramsauer Effect

350. Decrease accidental triggering of SCS Rate Effect351. Lead Acid Rate of change352. What is the main purpose of laminating the field

poles and armature of a DC machines?Reduce eddy current

353. Use to select Reference selector354.

The property of a material which opposes thecreation of magnetic flux reluctance

355. What is the first step in the repair of burned orscorched boards

Removing all discoloredmaterial

356. Which has the greatest effect on the figure of meriton the circuit?

resistance

357. In AC circuit , power dissipation is due to ____? Resistance358. Inductances in series are computed like resistances in series359. Is one of the oldest of the electric welding processes

todayResistance welding

360. A series - parallel resistive network...made from resistor


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_______ that are all the same

361. Operation of photodiodes when not used asphotovoltaic cell

reverse biased

362. rotational movement in robots revolute363. In robotics, a robotic joint that has one degree of

freedom and provides a single axis of rotation is called a________ joint.

Revolute

364. used for high frequency rf bridge365. The frequency-measuring capability a digital

multimeter can be extended using which of the followingdevice.

RF probe

366. The AC variations at the output of a power supplycircuits

Ripples

367. computer that is fast because of fewer instructions RISC368. Specializes in Robotics Roboticist369. Designing, Building, Applying... Robotics370. When electrical and electronic components are

soldered, what type of flux must be used?rosin

371. Converts AC to DC and vice versa Rotary Converter372. Internal attenuation factor Scale Factor373. A bridge circuit which is used to detect unknown

electrical capacitance and dissipationSchering Bridge

374. Comparator with hysteresis Schmitt trigger375. What device acts like an NPN and PNP transistor

connected base to base and emitter to collectorSCR

376. Active device SCR377. Commonly used thyristor SCR, TRIAC and DIAC378. ______ mammogram for patients without breast

cancerScreening

379. Sallen Key Filter Second-Order380.

What is another name for thermoelectric effect? seebeck effect381. The amount of time it takes the arm track device seek time

382. The movement in acceleration transducers is called___.

Seismic Mass

383. What separates the positive and negative plates ofbattery?

Separator

384. A function table is like a truth table for sequential circuits385. Should not be belt connected Series Motor386. A type of linear regulator used in applications

requiring efficient utilization of the primary power source.series regulator

387. Computer that connects the users computer systemto the internet

server

388. Closed-Loop System to maintain its physical position Servo System389. Invented Cray-1 super computer Seymour Cray390. Operating environment Shell391. The manipulator arm linkage joint that is attached to

the base

shoulder

392. Robot part that "links" the arm to the rest of thebody

Shoulder

393. A regulator that maintains a constant output voltageby controlling a current

Shunt Generator

394. Most efficient motor Shunt motor


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395. Most commonly used in semiconductor? Silicon396. Type of solder suited for applications in which high-

current and high-temperature are requiredSilver

397. In Op-amp, when both inputs are connected together Single-ended mode398. Maximum rate at which the amplifier output can

change?Slew Rate

399. 534 transistors in a single chip small scale400. Arc welding process that welds metals produced by

heat from an electric arc that is maintained between the tipof a consumed covered electrode and the surface of thebase metal in the joint being welded

SMAW

401. Computer program /software for small businessenterprise

SOHO

402. Frictional welding Solid state403. A gyro will resist all forces that attempt to change its spin axis direction404. A technology in electronics where it exploits the spin

orientation of electronsspintronics

405. Prevents mixing of print orders in shared networks is spooling406. Welding process---Ohmic Resistance---Pressure Spot welding407. Output of Vose McCartney noise generator is squared pulse408. A function table is like a truth table foe squential circuits409. Winding used for heavy load Squirrel Cage Winding410. 534 transistor SSI411. Solar panels and batteries Stand alone412. In automatic welding, it is the stage after the release

intervalStandby Interval

413. The Law that governs the amount of radiationemitted by a blackbody at a given temperature.

Stefan-Boltzman Law

414. A brushless, synchronous electric motor that candivide a full rotation into a large number of steps.

stepper motor

415.

Separate word processing from typing Store416. Small inductance stores slowly & releases

quickly

417. The magnetic flux around a straight current carryingwire is

stronger near the wire.

418. The arrow in a MOSFET indicates a __. substrate419. Foundation of MOSFET Substrate420. A bundle of basic software design to work together. Suite421. The management of an operating system is extended

by asupervisor program

422. Stirring the lead during desoldering prevents whichof the following unwanted results?

sweat joints

423. Horizontal deflection in oscilloscope sweep424. Dissipates less power and generates less heat switching regulators425. Synchronizing Synchronizer426. Machine Rotation Frequency Tachometer427. Who designed microprocessor in 1969? Ted Hoff428. Super computer speed is measured in a computer as

the ____teraflops

429. The trillion-floating point Tetraflop430. Silicon and germanium shape of its crystal structure Tetrahedral431. not used for biometry texture of skin


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432. What does the arrow on a synchro schematic symbolindicate?

The angular position ofthe rotor

433. What significant advantage, in someapplications, of atoroidal coil over a solenoid is...

The magnetic flux in atoroid is practically allwithin the core

434. The difference between series and shunt regulatorsis ___.

The type of samplingcircuit

435. Why do motors take large current during starting? there is still low back emf436. What term defines the capacity of a soldering iron to

generate and maintain a satisfactory soldering temperaturewhile heat to the joint being soldered?giving up

thermal inertia

437. What ammeter that is mostly used in measuringhigh-frequency currents?

thermocouple

438. Electrical circuit theorem that was first enunciated byHelmholtz

thevenin's theorem

439. frequency of crystal oscillator depends on thickness of the crystal440. Vacuum evaporation and cathode sputtering are two

methods used to produce which of the following types ofcomponents

thin film

441.

The liberation or absorption when an electriccurrent flows from a warmer to a cooler part of a conductoris called __

thomson effect

442. When a TO or a DIP is replaced on a printed circuitboard, what type of termination is normally used

through the board

443. ...180C tin:lead 63:37444. solder used for 220 degrees and higher Tin-Lead 50:50445. Coating the material to be soldered with a light coat

of soldertinning

446. Purpose of rheostat in ohmmeter To compensate batteryaging

447. Purpose of Air Gap, To increase Reluctance448. The purpose of installing thyrectors. To protect the circuits

from high voltage surges

449. Which of the following types of synchro devicesprovides a mechanical output?

torque receiver

450. magnetic video tape tracks are diagonal withthe edges

451. ICs are composed of _________ transistors452. A movement such that all axes remain parallel to

what they were.translation

453. Computer on a chip Transputer454. No cathode element Triac455. The time when the oscilloscope does not trigger trigger hold off456. Aluminum, gallium, indium, boron.. Trivalent457. What is least susceptible to noise? TTL458. NAND base technology TTL459. Common to oscillator, operates in negative reverse

breakdown regionTunnel Diode

460. How many secondary windings are there in LinearVariable Differential Transformer?

Two (2)

461. T- flipflops divide input frequency by Two462. Class B amp most suitable for Hifi audio Two transistor in push-


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pull

463. What is the basic difference between a seriesregulator and a shunt regulator?

type of sample current

464. Main diff. of series and shunt regulator Type of sampling465. Which of the following components has a negative

resistance regionUJT

466. A series motor designed to operate on dc or ac universal motor467. The portion of a jointed arm that is connected to the

shoulder

upper arm

468. Robot connected to base Upper arm469. Prewritten standard file-handling programs are called

__.utilities

470. To deposit highly substrate, which of the followingmethods is used?

vacuum evaporation

471. A CMOS which substrate is wide and short in height VCMOS472. Plug-in DIPs are susceptible to loosening because of

which of the following causes?vibration

473. Opposition to flow viscocity474. An operational amplifier circuit has its output tied

directly to the input terminal is a/an

voltage follower

475. Voltage equipment measure Voltage gain476. OTA is a ________ voltage to current

amplifier

477. Most commonly used combinational bias Voltage-Divider Bias478. --- Voltage-to-current479. A voltmeter, milliameter and ohmmeter when

combined is calledvoltohmeter

480. The maximum output voltage swing of an op-amp? -VSAT to +VSAT481. Playback robots with continuous path control Walk-through

programming

482.

Used in Power Measurement Wattmeter483. Series winding Wave winding484. after squeeze interval weld interval485. Color emitted by black body Wien Law486. The sound heard when a television is tuned to a non-

existent stationwhite noise

487. An AC electromagnet _________ will attract pureunmagnetized iron

488. The preferred method for removing insulation frommost types of insulated wire is by using what tool

wire stripper

489. High power, high current Wire wound490.

Visual inspection of a completed repair is conductedto evaluate which of the following aspects of the repair? workmanship quality

491. Logic Gate even parity XNOR gate492. It is a logic gate which is used as an odd parity

checkerXOR Gate

493. What is the ideal output of an op amp with zero voltson both inputs?

zero

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