Solid State Switching Circuits

1. _________. multivibrator is a square wave oscillator

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

Correct answer: (B)
Astable

2. A bistable multivibrator has _________

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

Correct answer: (A)
Two stable states

3. 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)

Correct answer: (B)
ICEO

4. 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

Correct answer: (A)
R

5. A monostable vibrator has _________

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

Correct answer: (B)
One stable state

6. 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

Correct answer: (A)
Negative

7. A relay is _________ switch

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

Correct answer: (C)
An electromechanical

8. 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

Correct answer: (C)
Combines control with power amplification

9. A switch has _________

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

Correct answer: (B)
Two states

10. An astable multivibrator has _________

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

Correct answer: (C)
No stable state

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