Oscillators Quiz Question with Answer

11. Oscillators must employ

  1. Possitive feedback
  2. Negative feedback
  3. Neither negative nor positive feedbacks
  4. None of the above

12. Quartz crystal is most commonly used in crystal oscillators because

  1. It has superior electrical properties
  2. It is easily available
  3. It is quite inexpensive
  4. None of the above

13. The Q of the crystal is of the order of

  1. 100
  2. 1000
  3. 50
  4. More than 10,000

14. The signal generator generally used in the laboratories is .............. oscillator

  1. Wien-bridge
  2. Hartely
  3. Crystal
  4. Phase shift

15. What percentage of feedback will cause oscillations?

  1. 0.20%
  2. 0.50%
  3. 1.50%
  4. 2%

16. Which is a fixed frequency oscillator

  1. Phase-shift oscillator
  2. Hartely-oscillator
  3. Colpitts oscillator
  4. Crystal oscillator

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