RC Phase Shift Oscillator MCQ’s

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This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “RC Phase Shift Oscillator”.

1. One phase shift network of an RC phase shift oscillator contain __________ capacitor.
a) 1
b) 2
c) 3
d) 0

2. One phase shift network of an RC phase contain _________ inductor.
a) 1
b) 2
c) 3
d) 0

3. RC phase shift oscillators contain a minimum of _________ Phase shift network.
a) 1
b) 2
c) 3
d) 0

4. One phase shift network of an RC phase contain __________ resistor.
a) 1
b) 2
c) 3
d) 0

5. Total phase shift provided by all phase shift networks in RC phase shift oscillator is ___________
a) 180 degrees
b) 60 degrees
c) 120 degrees
d) 360 degrees

6. Which of the following is not a reason for beginning oscillations in RC phase shift oscillator?
a) Phase shift network
b) Noise inherent in transistor
c) Minor variations in the voltage DC source
d) Square wave signal

7. Phase shift provided by one phase shift network in RC phase shift oscillator in 3 stage is ___________
a) 180 degrees
b) 60 degrees
c) 120 degrees
d) 90 degrees

8. The phase shift network will produce a phase shift of 180 degrees at ___________
a) Three different frequencies
b) One frequency
c) Two different frequencies
d) Infinitely many frequencies

9. Amplifier gain for RC phase shift oscillation, to obey Barkhausen’s criteria should be minimum of ___________
a) 43
b) 4
c) 10
d) 29

10. Distortion level in the output of RC phase shift network will be less than ___________
a) 1%
b) 2%
c) 5%
d) 10%

11. Phase shift provided by one phase shift network in RC phase shift network in 4-stage will be ___________
a) 180 degrees
b) 45 degrees
c) 60 degrees
d) 90 degrees

12. Which of the following is not true for an RC phase shift oscillator?
a) Not Bulky
b) Less costly
c) Effective for oscillation less than 10KHz
d) Pure sine wave output is possible

13. Frequency of oscillation for three section RC phase shift network is given by ___________
a) 1/(ᴨ√6 RC)
b) 2/(ᴨ√6 RC)
c) 1/(2ᴨ√6 RC)
d) 1/(2√6 RC)

14. The feedback factor for RC phase shift oscillator is ___________
a) 1/18
b) 1/29
c) 1/11
d) 1/33

15. What will be oscillator frequency, if phase shift network of 3stages of RC phase shift oscillator contains a capacitor of 7nF and a resistance of 10K in each stage?
a) 928 Hz
b) 1KHz
c) 1.2KHz
d) 895Hz

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