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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Modern communication systems use
(a)
Analog circuits
(b)
Digital circuits
(c)
Combination of analog and digital circuits
(d)
None of the above
2. N-type of semiconductor is
(a)
Positively charged
(b)
Negatively charged
(c)
Neutral
(d)
None of these
3. Intelsat satellite works as a
(a)
Absorber
(b)
Transmitter
(c)
Repeater
(d)
None of these
4. Resistivity of semiconductor depends on
(a)
Atomic nature of semiconductor
(b)
Length of semiconductor
(c)
Shape and atomic nature of semiconductor
(d)
Shape of semiconductor
5. Intelsat satellite is used for
(a)
Intercontinental communication
(b)
Radio communication
(c)
Radar communication
(d)
None of the above
6. A diode can be used for
(a)
Detection
(b)
Rectification
(c)
Modulation
(d)
Amplification
7. An oscillator is nothing but an amplifier with
(a)
Large gain
(b)
Negative feedback
(c)
Positive feedback
(d)
No feedback
8. A digital signal possesses
(a)
Only two discrete values
(b)
Only four discrete values
(c)
Continuously varying values
(d)
None of the above
9. Which of the following shows particle nature of high?
(a)
Polarization
(b)
Photoelectric effect
(c)
Refraction
(d)
Interference
10. Radio wave of constant amplitude can be generated with
(a)
Rectifier
(b)
FET
(c)
Oscillator
(d)
Filter
