Question 31 : One of the advantage of using a high frequency carrier wave is that it dissipates very small power.
1. True
2. False
3.
4.
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Question 32 : What is the bandwidth required in SSB signal?
1. f_m
2. 2f_m
3. > 2f_m
4. < 2f_m
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Question 33 : What is Carrier swing?
1. Frequency deviation
2. Width of sideband
3. Frequency deviation less than carrier frequency
4. Total variation in frequency
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Question 34 : Audio frequency range lies between _________
1. 2 MHz to 20 MHz
2. 20 Hz to 20 KHz
3. 20 KHz to 200 KHz
4. 20 MHz to 200 MHz
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Question 35 : AVC stands for ________
1. Audio Volume Control
2. Audio Voltage Control
3. Automatic Volume Control
4. Automatic Voltage Control
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Question 36 : What is the amount of information in continuous signal?
1. zero
2. infinite
3. 2 bits
4. 4 bits
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Question 37 : In ergodic process, ensemble and time averages are identical.
1. False
2. True
3.
4.
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Question 38 : Which statement is true about ring modulator?
1. it is used for DSB-SC generation
2. it is used for SSB-SC generation
3. it is a summation modulator
4. it is used for AM generation
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Question 39 : Which statement is true about Square Law modulators?
1. it is used for frequency modulation
2. it is used for pulse width modulation
3. it is used for amplitude modulation
4. it is used for phase modulation
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Question 40 : The coupling used in stoneman transmission bridge is________
1. Inductive
2. Resistive
3. Capacitive
4. Combination of inductive and capacitive
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