www.ThinkITI.com

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
ITI
Electronic Mechanic
Electronic Mechanic Set-1
Oscillators
9

Oscillators MCQ with Answers

9) What type of feed back is used by the Wein-bridge oscillator to oscillate the signal?

No feedback

Positive feedback

Negative feedback

Both positive and negative feedback

Answer is:

Both positive and negative feedback

Oscillators MCQ with Answers

For more MCQ's Click Here

Related Oscillators MCQ with Answers

10) How to improve the frequency stability in oscillator circuits?

Increase the supply voltage

By using quartz crystal

Using L and C

Improve the property of circuits

Answer is:

By using quartz crystal

11) Which is the transistor used to operate the Colpitts oscillator?

AC 127

BF 194B

BC 148B

AC 188

Answer is:

BF 194B

12) How many time constant period is required to fully charge a capacitor?

10 time constants

7 time constants

5 time constants

3 time constants

Answer is:

5 time constants

13) How to overcome the problem of frequency drift in LC oscillators?

Apply opposite polarity of signal

Provide negative feedback

Using high Q coils and good quality capacitors

Increase the supply voltage

Answer is:

Using high Q coils and good quality capacitors

Oscillators MCQ with Answers

For more MCQ's Click Here