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Objective Questions
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Electrician
Electrician Set-1
Semi Conductor Devices
25

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

25) The technique of feeding the output of one amplifier stage to the input of the second amplifier stage is called ?

joining

coupling

isolating

bypassing

Answer is:

coupling

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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Related Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

26) A power amplifier is essentially ?

an impedance matching device

a noise amplifier

a current amplifier

a voltage amplifier

Answer is:

a current amplifier

27) If the two half signals applied to a push-pull amplifier stage are not symmetrical, the result will be ?

increased gain

distorted output

reduced gain with high efficiency

increased efficiency

Answer is:

distorted output

28) The efficiency of a class 'B' amplifier is around?

10%-30%

30%-50%

50%-60%

100%

Answer is:

50%-60%

29) A complementary symmetry amplifier is preferred over simple push-pull circuit because of ?

low crossover distortion

no need of output transformer

its increased gain

its increased efficiency

Answer is:

no need of output transformer

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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