Electrical Engineering MCQs

Page No. 85

A differentiating circuit is a simple RC circuit with output taken across ____________?


aR


bC


cBoth R and C


dNone of the above


View Answer R

One would find a clamping circuit in ___________________?


aReceiving antenna


bRadio transmitter


cRadio receiver


dTelevision receiver


View Answer Television receiver

When the transistor (CE arrangement) is in the cut off region, the collector current is ______________?


aICBO


bICEO


c(ß + 1) ICEO


dIC(sat)


View Answer ICEO

If the input to an integrating circuit is a succession of alternating positive and negative pulses of very short duration, the output will be _____________wave A?


a Rectangular


bTriangular


cSine


dSquare


View Answer Square

When a transistor is used as an amplifier, it is operated in the _____________ region?


a Off


b Saturation


cActive


dNone of the above


View Answer Active

A negative clipper removes the ______________half-cycles of the input voltage?


aNegative


b Positive


cBoth positive and negative


d None of the above


View Answer Negative

If a square wave is fed to a differentiating circuit, the output will be _____________?


aSine wave


b Sharp narrow pulses


cRectangular wave


dTriangular wave



If the input to a differentiating circuit is a saw-tooth wave, then output will be _____________?


aSquare


bTriangular


cSine


d Rectangular


View Answer Rectangular

An astable multivibrator has ________________?


aOne stable state


bTwo stable states


cNo stable state


dNone of the above


View Answer No stable state

A relay is superior to a mechanical switch because it _______________?


aIs relatively inexpensive


bDoes not require moving contacts


cCombines control with power amplification


dNone of the above



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