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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Intelsat satellite works as a
(a)
Absorber
(b)
Repeater
(c)
Transmitter
(d)
None of these
2. The expected energy of the electron at absolute zero is called
(a)
Potential energy
(b)
Work function
(c)
Fermi energy
(d)
Emission energy
3. Which of the following is not a semiconductor?
(a)
Arsenic
(b)
Germanium
(c)
Silicon
(d)
All of these
4. The absorption of radio waves by the atmosphere depends on
(a)
The polarization of the atmosphere
(b)
Their frequency
(c)
Their polarization of the wave
(d)
Their distance from the transmitter
5. When magnet is heated, it
(a)
Gains magnetism up to certain temperature
(b)
Loses its magnetism
(c)
Gains magnetism
(d)
None of the above
6. In a transistor the emitter current is
(a)
Equal to the base current
(b)
Equal to the collector current
(c)
Slightly more than the collector current
(d)
Slightly less than the collector current
7. The electrical circuits used to get smooth dc output from a rectified circuit is called
(a)
Amplifier
(b)
Filter
(c)
Oscillator
(d)
Full wave rectifier
8. Radio wave of constant amplitude can be generated with
(a)
FET
(b)
Filter
(c)
Oscillator
(d)
Rectifier
9. The resistance of an ideal ammeter is
(a)
Infinite
(b)
Zero
(c)
Very low
(d)
Very high
10. Modem is a device used for
(a)
Converting analog signals to digital signals
(b)
Modulating signals
(c)
Either of the above
(d)
None of the above
