MCQ on Analog Electronics with Answers - 6

Multiple Choice Questions with Answers on Analog Electronics Circuits - 6


 

          1          In RC coupled amplifier, dc component is blocked by

a.      load resistance RL

b.     coupling resistance

c.      transistor

d.     bypass capacitor

Answer: b

 

          2          The amplifier produces least distortion is

a.      class A

b.     class B

c.      class C

d.     class AB

Answer: a

 

          3          Class A amplifier is used when

a.      no phase inversion is required

b.     highest voltage gain is required

c.      dc voltages are to be amplified

d.     minimum distortion is required

Answer: a

 

          4          Maximum theoretical collector circuit efficiency of class A amplifier is

a.      15%

b.     78.5%

c.      25%

d.     50%

Answer: c

 

          5          Maximum theoretical collector circuit efficiency of transformer coupled class A amplifier is

a.      15%

b.     78.5%

c.      25%

d.     50%

Answer: d

 

          6          Maximum theoretical collector circuit efficiency class B amplifier is

a.      15%

b.     25%

c.      78.5%

d.     50%

Answer: c

 

          7          A transistor amplifier with collector circuit efficiency of 80% will certainly be

a.      class A

b.     class B

c.      class C

d.     class AB

Answer: c

 

          8          A transistor amplifier with collector circuit efficiency of 15% is likely to be

a.      class A

b.     class B

c.      class C

d.     class AB

Answer: a

 

          9          Which class of amplifier has the lowest collector circuit efficiency

a.      class A

b.     class B

c.      class C

d.     class AB

Answer: a

 

       10       Harmonic distortion in an amplifier is caused by

a.      nonlinear characteristics of the active device

b.     reactive elements in the circuit

c.      power supply of the amplifier

d.     positive feedback in the circuit

Answer: a



Hope this post on "MCQ on Analog Electronics with Answers-6" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc. 

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