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Information and Communication Technology System Maintenance (ICTSM)
MODULATION DEMODULATION TRANSMITTER ELECTRICAL
Set 1
Set 1
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Q7282
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What is the range of frequency for Short Wave (SW) band?
A
550 kHz to 1650 kHz
B
3 MHz to 30 MHz
C
30 MHz to 100 MHz
D
200 MHz to 300 MHz
Q7283
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What is fidelity of receiver circuits?
A
Generated automatic gain
B
Stability of amplifier
C
Accuracy of reproduction
D
Mixing complicated signals
Q7284
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What is the full form of SSB in AM signals?
A
Similar Side Band
B
Sequence Side Band
C
Shift Side Band
D
Single Side Band
Q7285
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What is the range of frequency for Medium Wave (MW) in AM broadcasting?
A
20 Hz to 20 kHz
B
452 Hz to 456 kHz
C
530 Hz to 1650 kHz
D
3 MHz to 26 MHz
Q7286
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What is the speed of light?
A
3 x 10<sup>3</sup> meters per second
B
3 x 10<sup>6</sup> meters per second
C
3 x 10<sup>8</sup> meters per second
D
3 x 10<sup>10</sup> meters per second
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