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Electrical Engineering
Solid State Switching Circuits
Quiz 2
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Q.1
A bistable multivibrator has ___________.
Two stable states
One stable state
No stable state
None of the above
Q.2
A monostable vibrator has ___________.
No stable state
One stable state
Two stable states
None of the above
Q.3
A switch has ___________.
One state
Two states
Three states
None of the above
Q.4
A relay is superior to a mechanical switch because it ___________.
Is relatively inexpensive
Does not require moving contacts
Combines control with power amplification
None of the above
Q.5
If you need to switch very small load currents or high frequency signals such as audio or video signals, which type of relay will you choose
Electromechanical Relay
Solid State Relay
Q.6
If you need faster response and long life, which type of relay will you choose
Electromechanical Relay
Solid State Relay
Q.7
Solid state relays have only one moving part which helps in switching between “ON” and “OFF” position.
True
False
Q.8
Electromechanical relays face high arching problems as it has moving parts
True
False
Q.9
Solid state relays face high arching problems as it has moving parts
True
False
Q.10
Electromechanical Relays have a
coil and contact arrangement
optocoupler
SCR
none of the above
Q.11
Solid State Relays (SSRs) have a
coil and contact arrangement
optocoupler
SCR
none of the above
Q.12
A phototransistor produces more current than a photodiode because - (Choose an answer to complete this sentence)
the phototransistor can be more heavily doped than the photodiode.
the photo transistor accepts a wider spectrum of light than the photodiode.
the current produced by photons is amplified by the hfe (gain) of the transistor.
the photodiode is normally used in low light conditions.
Q.13
The disadvantage/s of a mechanical switch is that it………….
is noisy
has moving parts
has high inertia/slow
All of the above
Q.14
What do you mean by Solid State Relay (SSR)?
electronic switching device
complete state
motion
none of the above
Q.15
A relay is a/an ……….. switch
mechanical
electronic
electromechanical
none of the above
Q.16
The switch that has the fastest speed of operation is ………….. switch
mechanical
electronic
electromechanical
none of the above
Q.17
An LED and phototransistor is equivalent to a/an
Thermocouple
FET
Optocoupler
Regulator
Q.18
Optocoupler is otherwise known as
Laser
Photodiodes
Opto- isolator
Photoconductive cell
Q.19
The prosche Taycan has a battery that is how many volts?
350
600
700
800
Q.20
What is the job of a converter in an electric car?
convert AC to DC
Convert high DC to Lower DC
Convert Low DC to Higher DC
Control motor speed
0 h : 0 m : 1 s
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