Oscillators MCQ Questions & Answers | Electrical Engineering

1

In an LC oscillator, the frequency of oscillator is ___________ L or C.

A) Proportional to square of B) Directly proportional to C) Independent of the values of D) Inversely proportional to square root of

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Answer & Solution

Answer: Option D

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2

Quartz crystal is most commonly used in crystal oscillators because ___________

A) It has superior electrical properties B) It is easily available C) It is quite inexpensive D) None of the above

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Answer & Solution

Answer: Option A

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3

In a certain oscillator Av = 50. The attention of the feedback circuit must be ___________

A) 1 B) 5 C) 10 D) 2

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Answer & Solution

Answer: Option D

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4

Hartley oscillator is commonly used in ___________

A) Radio receivers B) Radio transmitters C) TV receivers D) None of the above

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Answer & Solution

Answer: Option A

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5

The crystal oscillator frequency is very stable due to ___________ of the crystal

A) Rigidity B) Vibrations C) Low Q D) High Q

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Answer & Solution

Answer: Option D

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6

An oscillator produces___________ oscillations

A) Damped B) Undamped C) Modulated D) None of the above

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Answer & Solution

Answer: Option B

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7

An LC oscillator cannot be used to produce ___________ frequencies

A) High B) Audio C) Very low D) Very high

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Answer & Solution

Answer: Option C

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8

In a phase shift oscillator, we use ___________ RC sections

A) Two B) Three C) Four D) None of the above

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Answer & Solution

Answer: Option B

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9

The signal generator generally used in the laboratories is ___________ oscillator

A) Wien-bridge B) Hartely C) Crystal D) Phase shift

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Answer & Solution

Answer: Option A

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10

An oscillator employs ___________ feedback

A) Positive B) Negative C) Neither positive nor negative D) Data insufficient

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Answer & Solution

Answer: Option A

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