Multiple Choice Questions and Answers on Solid State Switching Circuits

Multiple Choice Questions and Answers on Solid State Switching Circuits

Q1. A switch has ………………

  1. One state
  2. Two states
  3. Three states
  4. None of the above

Answer : 2

Q2. A relay is ……….. switch

  1. A mechanical
  2. An electronic
  3. An electromechanical
  4. None of the above

Answer : 3

Q3. The switch that has the fastest speed of operation is ………….. switch

  1. Electronic
  2. Mechanical
  3. Electromechanical
  4. None of the above

Answer : 1

Q4. The most inexpensive switch is ………….. switch

  1. Electronic
  2. Mechanical
  3. Electromechanical
  4. None of the above

Answer : 1

Q5. The main disadvantage of a mechanical switch is that it………….

  1. Is operated mechanically
  2. Is costly
  3. Has high inertia
  4. None of the above

Answer : 3

Q6. When a transistor is driven to saturation, ideally the output is ………………

  1. VCC
  2. 0
  3. VCC/2
  4. 2VCC

Answer : 2

Q7. The maximum speed of electronic switch can be ………….. operations per second

  1. 104
  2. 10
  3. 1000
  4. 109

Answer : 4

Q8. A relay is superior to a mechanical switch because it ……………

  1. Is relatively inexpensive
  2. Does not require moving contacts
  3. Combines control with power amplification
  4. None of the above

Answer : 3

Q9. When a transistor is driven to cut off, ideally the output is …………..

  1. VCC
  2. 0
  3. VCC/2
  4. VCC/3

Answer : 1

Q10. ………………. multivibrator is a square wave oscillator

  1. Monostable
  2. Astable
  3. Bistable
  4. None of the above

Answer : 2

Q11. An astable multivibrator has ………….

  1. One stable state
  2. Two stable states
  3. No stable state
  4. None of the above

Answer : 3

Q12. If d.c. supply of 10 V is fed to a differentiating circuit, then output will be …….

  1. 20 V
  2. 10 V
  3. 0 V
  4. None of the above

Answer : 3

Q13. If the input to a differentiating circuit is a saw-tooth wave, then output will be ………….

  1. Square
  2. Triangular
  3. Sine
  4. Rectangular

Answer : 4

Q14. A bistable multivibrator has …………..

  1. Two stable states
  2. One stable state
  3. No stable state
  4. None of the above

Answer : 1

Q15. If a square wave is fed to a differentiating circuit, the output will be …………

  1. Sine wave
  2. Sharp narrow pulses
  3. Rectangular wave
  4. Triangular wave

Answer : 2

Q16. An integrating circuit is a simple RC series circuit with output taken across ………

  1. Both R and C
  2. R
  3. C
  4. None of the above

Answer : 3

Q17. For an integrating circuit to be effective , the RC product should be ………. the time period of the input wave

  1. 5 times greater than
  2. 5 times smaller than
  3. Equal to
  4. At least 10 times greater than

Answer : 4

Q18. A differentiating circuit is a simple RC circuit with output taken across …………..

  1. R
  2. C
  3. Both R and C
  4. None of the above

Answer : 1

Q19. A monostable vibrator has …………..

  1. No stable state
  2. One stable state
  3. Two stable states
  4. None of the above

Answer : 2

Q20. The multivibrator which generates square wave of its own is the ………… multivibrator

  1. Monostable
  2. Bistable
  3. Astable
  4. None of the above

Answer : 3

Q21. For a differentiating circuit to be effective, the RC product should be ………… the time period of the input wave

  1. Equal to
  2. 5 times greater than
  3. 5 times smaller than
  4. At least 10 times greater than

Answer : 4

Q22. When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ……………

  1. Rectangular
  2. Sinusoidal
  3. Sawtooth
  4. Square

Answer : 1

Q23. The positive clipper is that which removes the …………………. half-cycles of the input voltage.

  1. Negative
  2. Positive
  3. Both positive and negative
  4. None of the above

Answer : 2

Q24. A clamping circuits adds ………………… component to the signal

  1. c.
  2. c.
  3. both d.c. and a.c.
  4. none of the above

Answer : 1

Q25. One would find a clamping circuit in ………………..

  1. Receiving antenna
  2. Radio transmitter
  3. Radio receiver
  4. Television receiver

Answer : 4

Q26. When a transistor is used as an amplifier, it is operated in the ……………… region

  1. Off
  2. Saturation
  3. Active
  4. None of the above

Answer : 3

Q27. When the transistor (CE arrangement) is in the cut off region, the collector current is ……………..

  1. ICBO
  2. ICEO
  3. (β + 1) ICEO
  4. IC(sat)

Answer : 2

Q28. A negative clipper removes the ……………… half-cycles of the input voltage

  1. Negative
  2. Positive
  3. Both positive and negative
  4. None of the above

Answer : 1

Q29. 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

  1. Rectangular
  2. Triangular
  3. Sine
  4. Square

Answer : 4

Q30. In a multivibrator, we have ………. feedback.

  1. Negative
  2. 100 % positive
  3. Both positive and negative
  4. None of the above

Answer : 2