Exam Details
| Subject | Electronics | |
| Paper | ||
| Exam / Course | Diploma in Civil Engineering (DCLE) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
Select the correct answer from the given options.
Avalanche breakdown in a diode occurs when
forward current exceeds a certain value
reverse bias crosses a certain value
depletion layer becomes more wide
None of these
To obtain a p-type semiconductor, the impurity added to a pure semiconductor is
pentavalent
tetravalent
trivalent
None of these
When transistors are used as a switch, they usually operate in the
active region
breakdown region
linear region
saturation and cut-off region
DC current gain in common emitter configuration is
IC/IE
IE/IB
IB/IE
IC/IB
Base of Binary Number system is
8
2
16
6
Ratio of latching current to holding current in SCR is
less than one
more than one
equal to one
less than or equal to one
IDSS can be defined as
the minimum possible drawn current
the maximum possible current with VGS held at volt
the maximum possible current with VGS held at 0 volt
None of these
State true or false against the given statements.
At absolute zero temperature, the conduction band of a semiconductor is totally empty.
Electric field inside the depletion layer is very high of the order 10^5 volts per metre.
Common Base configuration has very high input impedance.
For half wave rectifier, ripple factor is 81.2%.
A zener diode is operated In the breakdown region.
In UJT, the emitter is lightly doped.
Strain gauge is an active transducer.
Explain the working of an electrical humidity transducer.
What are the various techniques used in a Digital Voltmeter Discuss Ramp type DVM.
Explain the block diagram of C.R.O.
How does digital frequency meter work? Discuss with a block diagram.
Explain the circuit of a full subtractor.
Discuss the working of RS Flip-Flop.
What is Scanning? How is it done in T.V.
Explain the working of superheterodyne receiver.
Discuss the working of a bridge rectifier. What is ripple factor?
Explain the working of a capacitor filter with the help of a waveform.
Explain the construction and working of UJT.
Explain the working of zener diode as regulated power supply.
8. Write short notes on any two of the following:
Synchronous Motor
Piezoelectric Transducer
SCR
Thermistor
Avalanche breakdown in a diode occurs when
forward current exceeds a certain value
reverse bias crosses a certain value
depletion layer becomes more wide
None of these
To obtain a p-type semiconductor, the impurity added to a pure semiconductor is
pentavalent
tetravalent
trivalent
None of these
When transistors are used as a switch, they usually operate in the
active region
breakdown region
linear region
saturation and cut-off region
DC current gain in common emitter configuration is
IC/IE
IE/IB
IB/IE
IC/IB
Base of Binary Number system is
8
2
16
6
Ratio of latching current to holding current in SCR is
less than one
more than one
equal to one
less than or equal to one
IDSS can be defined as
the minimum possible drawn current
the maximum possible current with VGS held at volt
the maximum possible current with VGS held at 0 volt
None of these
State true or false against the given statements.
At absolute zero temperature, the conduction band of a semiconductor is totally empty.
Electric field inside the depletion layer is very high of the order 10^5 volts per metre.
Common Base configuration has very high input impedance.
For half wave rectifier, ripple factor is 81.2%.
A zener diode is operated In the breakdown region.
In UJT, the emitter is lightly doped.
Strain gauge is an active transducer.
Explain the working of an electrical humidity transducer.
What are the various techniques used in a Digital Voltmeter Discuss Ramp type DVM.
Explain the block diagram of C.R.O.
How does digital frequency meter work? Discuss with a block diagram.
Explain the circuit of a full subtractor.
Discuss the working of RS Flip-Flop.
What is Scanning? How is it done in T.V.
Explain the working of superheterodyne receiver.
Discuss the working of a bridge rectifier. What is ripple factor?
Explain the working of a capacitor filter with the help of a waveform.
Explain the construction and working of UJT.
Explain the working of zener diode as regulated power supply.
8. Write short notes on any two of the following:
Synchronous Motor
Piezoelectric Transducer
SCR
Thermistor
Other Question Papers
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