Q. A narrow band noise can exist in
✅ Correct Answer: (D)
am and fm both
Communication Engineering MCQs | Page - 2
Dear candidates you will find MCQ questions of Communication Engineering here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. When noise is passed through a narrow band filter, the output of filter should be?
✅ Correct Answer: (D)
sinusoidal
Q. For which of the modulated system, the linear amplified modulated stage is used?
✅ Correct Answer: (A)
low level amplitude modulated system
Q. For an AM transmitter, class C amplifier can be used after the modulation stage.
✅ Correct Answer: (B)
false
Q. Single Sideband Modulation (SSB) is generally reserved for point-to-point communication.
✅ Correct Answer: (A)
true
Q. Function of duplexer in a RADAR is to permit the use of same antenna for transmission and reception.
✅ Correct Answer: (A)
true
Q. Which of the following stage is present in FM receiver but not in AM receiver?
✅ Correct Answer: (A)
amplitude limiter
Q. AM system use only product detector for demodulation. They never use envelope detectors.
✅ Correct Answer: (B)
false
Q. A product detector in AM systems is also called
✅ Correct Answer: (D)
phase detector
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