MCQ on Analog Electronics with Answers - 11
Multiple Choice Questions with Answers on Analog Electronics Circuits - 11
1. RC phase shift oscillator using BJT employs
a.
voltage series feedback
b.
voltage shunt feedback
c.
current series feedback
d.
current shunt feedback
Answer: b
2. FET phase shift oscillator employs
a.
voltage series feedback
b.
voltage shunt feedback
c.
current series feedback
d.
current shunt feedback
Answer: a
3. Crystal oscillator uses
a.
silicon crystal
b.
germanium crystal
c.
crystal diode
d.
piezo-electric quartz crystal
Answer: d
4. Effective Q of the equivalent electrical circuit
of quartz crystal is of the order of
a.
200
b.
2000
c.
20000
d.
105
Answer: c
5. Barkhausen criterion for sustained oscillations
gives
a.
–Aβ = 1
b.
Aβ = 0
c.
Aβ = 1
d.
A = 1/β
Answer: c
6. Quartz crystal oscillators are popularly used
because of
a.
high Q and high frequency stability
b.
high Q and large output power
c.
low Q and large output power
d.
low Q and high frequency stability
Answer: a
7. The crystal oscillator frequency is highly stable
due to
a.
crystal structure
b.
vibration of the crystal
c.
high Q of the crystal
d.
rigidity of the crystal
Answer: c
8. The most likely application of a crystal
oscillators
a.
as RF test oscillator
b.
as an electronic organ for home
c.
as a Hi-fi test audio frequency sweep
generator
d.
in commercial radio transmitter
Answer: d
9. A monostable multivibrator has
a.
no stable state
b.
one stable state
c.
two stable states
d.
two quasi-stable states
Answer: b
10. An Astable multivibrator has
a.
no stable state
b.
one stable state
c.
two stable states
d.
none of the above
Answer: a
Hope this post on "MCQ on Analog Electronics with Answers-11" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc.
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