Single Stage Transistor Amplifiers MCQ

Single Stage Transistor Amplifiers MCQ

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  • 22nd Feb, 2023

Single Stage Transistor Amplifiers MCQ Questions

Take Single Stage Transistor Amplifiers MCQ Test & Online Quiz to test your Knowledge

Below is the Single Stage Transistor Amplifiers MCQ test that checks your basic knowledge of Single Stage Transistor Amplifiers. This Single Stage Transistor Amplifiers MCQ contains 20 Multiple Choice Questions. You have to select the right answer to the question. Apart from this, you can also download Single Stage Transistor Amplifiers MCQ PDF completly free.

Single Stage Transistor Amplifiers MCQ Test

1) The input capacitor in an amplifier is the ____ capacitor.

  • A. Coupling
  • B.Bypass
  • C.Leakage
  • D.None of the above

2) What is the purpose of capacitors in a transistor amplifier?

  • A. Protect the transistor
  • B.Cool the transistor
  • C.Couple or bypass a.c. component
  • D.Provide biasing

3) What is the purpose of d.c. conditions in a transistor?

  • A. Reverse bias the emitter
  • B.Forward bias the collector
  • C.Set up operating point
  • D.None of the above

4) What is the purpose of coupling capacitor in a transistor amplifier?

  • A. Increase the output impedance of transistor
  • B.Protect the transistor
  • C.Pass a.c. and block d.c.
  • D.Provide biasing

5) What is the purpose of of emitter capacitor (i.e. capacitor across RE)?

  • A. Avoid voltage gain drop
  • B.Forward bias the emitter
  • C.Reduce noise in the amplifier
  • D.None of the above

6) A CE amplifier is also called ____ circuit.

  • A. Grounded emitter
  • B.Grounded base
  • C.Grounded collector
  • D.None of the above

7) In transistor amplifiers, we generally use ____ capacitors.

  • A. Electrolytic
  • B.Mica
  • C.Paper
  • D.Air

8) A transistor converts d.c. power into a.c. power.

  • A. True
  • B.False

9) If the input capacitor of a transistor amplifier is short-circuited, then ____.

  • A. Transistor will be destroyed
  • B.Biasing conditions will change
  • C.Signal will not reach the base
  • D.None of the above

10) If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be low.

  • A. True
  • B.False

11) When a transistor amplifier is operating, the current in any branch is _____.

  • A. Sum of a.c. and d.c.
  • B.difference of a.c. and d.c.
  • C.product of a.c. and d.c.
  • D.None of the above

12) A transistor amplifier has high output impedance because __.

  • A. Emitter is heavily doped
  • B.Collector has reverse bias
  • C.Collector is wider than emitter or base
  • D.None of the above

13) What do you mean by the Operating point?

  • A. The point of intersection of d.c. and a.c. load lines
  • B.The sum of d.c. and a.c. load
  • C.The product of d.c. and a.c. load lines is called
  • D.None of the above

14) Is the slope of a.c. load line is more tahn that of d.c. load line?

  • A. Yes
  • B.No

15) If a transistor amplifier draws 2mA when input voltage is 10 V, then its input impedance is ___.

  • A. 20 kΩ
  • B.2 kΩ
  • C.10 kΩ
  • D.5 kΩ

16) What does single stage transistor amplifier contains?

  • A. One transistor and associated circuitry
  • B.Two transistor and associated circuitry
  • C.Multi transistor and associated circuitry
  • D.None of the above

17) The value of collector load RC in a transistor amplifier is ___ the output impedance of the transistor.

  • A. The same as
  • B.Less than
  • C.More than
  • D.None of the above

18) For highest power gain, one would use ___ configuration.

  • A. CC
  • B.CB
  • C.CE
  • D.None of the above

19) CC configuration is used for impedance matching because its ___.

  • A. Input impedance is very high
  • B.Input impedance is low
  • C.Output impedance is very low
  • D.None of the above

20) In order to get more voltage gain from a transistor amplifier, the transistor used should have ____.

  • A. Thin base
  • B.Thin collector
  • C.Wide emitter
  • D.None of the above

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