AGC Online Exam Quiz
AGC GK Quiz. Question and Answers related to AGC. MCQ (Multiple Choice Questions with answers about AGC
Calculate the power in a DSB-SC signal, if the modulation is 60% and power of carrier wave is 600W?
Options
A : 120W
B : 108W
C : 111W
D : 102W
Generation of SSB-SC signal is done by __
Options
A : Phase discrimination method and Frequency discrimination method
B : Phase discrimination method and Square law modulator
C : Square law modulator and Frequency discrimination method
D : Balanced modulator and Square law modulator
If a receiver has a poor capacity of blocking adjacent channel interference then the receiver has __
Options
A : Poor selectivity
B : Poor Signal to Noise ratio
C : Poor sensitivity
D : Poor fidelity
In automatic gain control of the AM receiver __
Options
A : gain of the receiver is adjusted
B : gain adjustment depends upon the strength of received signal
C : is an open-loop system
D : gain is received only by stronger signals
One of the advantage of using analog communication over digital communication is that in analog communication less transmission bandwidth is required.
Options
A : TRUE
B : FALSE
C : -
D : -
TRF receivers are used for __
Options
A : Detection of modulating signal
B : Removal of unwanted signal
C : Mixing modulating signal with unwanted signal
D : Both detection of modulating signal and removal of unwanted signal
What is the advantage of using a VSB transmission?
Options
A : Higher bandwidth than SSB
B : Less power required as compared to DSB-SC
C : Lower bandwidth than SSB
D : Both higher bandwidth than SSB and less power required as compared to DSB-SC
What is the maximum transmission efficiency of an AM signal?
Options
A : 33.33%
B : 60.25%
C : 38.75%
D : 50.25%
What is the value of modulation index m, for overmodulation?
Options
A : m < 1
B : m = 1
C : m > 1
D : m = 0
Which of the following is an example of continuous wave analog modulation?
Options
A : PCM
B : DPCM
C : AM
D : ADM
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