Oscillator Multiple Choice Questions And Answers

26. What percentage of feedback will cause oscillations?

   A.0.2%

   B.0.5%

   C.1.5%

   D.2%

27. One of the following oscillator types provides extremely stable output frequency:

   A.Colpitt's oscillator

   B.Wein bridge oscillator

   C.Crystal oscillator

   D.Hartley oscillator

28. Oscillator with best frequency stability is

   A.Crystal oscillator

   B.Hartley oscillator

   C.Clapp oscillator

   D.Phase oscillator

29. Oscillators must employ

   A.Possitive feedback

   B.Negative feedback

   C.Neither negative nor positive feedbacks

   D.None of the above

30. The oscillators must

   A.Not have any feedback

   B.Have the positive feedback

   C.Have the negetive feedback

   D.Have negetive and positive feedbacks

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