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Electrical Engineering
Solid State Switching Circuits
Quiz 1
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Q.1
A differentiating circuit is a simple RC circuit with output taken across ___________.
R
C
Both R and C
None of the above
Q.2
For an integrating circuit to be effective , the RC product should be ___________ the time period of the input wave.
5 times greater than
5 times smaller than
Equal to
At least 10 times greater than
Q.3
The main disadvantage of a mechanical switch is that it___________.
Is operated mechanically
Is costly
Has high inertia
None of the above
Q.4
___________ multivibrator is a square wave oscillator.
Monostable
Astable
Bistable
None of the above
Q.5
One would find a clamping circuit in ___________.
Receiving antenna
Radio transmitter
Radio receiver
Television receiver
Q.6
When the transistor (CE arrangement) is in the cut off region, the collector current is ___________.
ICBO
ICEO
(ß + 1) ICEO
IC(sat)
Q.7
When a transistor is used as an amplifier, it is operated in the ___________ region
Off
Saturation
Active
None of the above
Q.8
When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ___________.
Rectangular
Sinusoidal
Sawtooth
Square
Q.9
For a differentiating circuit to be effective, the RC product should be ___________ the time period of the input wave.
Equal to
5 times greater than
5 times smaller than
At least 10 times greater than
Q.10
A negative clipper removes the ___________ half-cycles of the input voltage.
Negative
Positive
Both positive and negative
None of the above
Q.11
The maximum speed of electronic switch can be ___________ operations per second.
104
10
1000
109
Q.12
When a transistor is driven to saturation, ideally the output is ___________.
VCC
0
VCC/2
2VCC
Q.13
When a transistor is driven to cut off, ideally the output is ___________.
VCC
0
VCC/2
VCC/3
Q.14
In a multivibrator, we have ___________ feedback.
Negative
100 % positive
Both positive and negative
None of the above
Q.15
An astable multivibrator has ___________.
One stable state
Two stable states
No stable state
None of the above
Q.16
A relay is ___________ switch.
A mechanical
An electronic
An electromechanical
None of the above
Q.17
The switch that has the fastest speed of operation is ___________ switch.
Electronic
Mechanical
Electromechanical
None of the above
Q.18
The most inexpensive switch is ___________ switch.
Electronic
Mechanical
Electromechanical
None of the above
Q.19
The positive clipper is that which removes the ___________ half-cycles of the input voltage.
Negative
Positive
Both positive and negative
None of the above
Q.20
If d.c. supply of 10 V is fed to a differentiating circuit, then output will be .
20 V
10 V
0 V
None of the above
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