Explore topic-wise MCQs in Analog Communications.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.

1.

A narrow band noise can exist in _________

A. AM only
B. PCM only
C. FM only
D. AM and FM both
Answer» E.
Discussion
2.

PHASE_ARRAY_RADAR_CAN_TRACK_MANY_TARGETS_TOGETHER.?$

A. True
B. False
Answer» B. False
Discussion
3.

THE_UPPER_AND_LOWER_SIDEBAND_FREQUENCIES_FOR_5KHZ_AMPLITUDE_MODULATION_WITH_A_30KHZ_CARRIER_FREQUENCY_WILL_BE??$

A. 35KHz and 25KHz
B. 34KHz and 24KHz
C. 25KHz and 35KHz
D. 0.35KHz and 0.25KHz
Answer» B. 34KHz and 24KHz
Discussion
4.

When noise is passed through a narrow band filter, the output of filter should be?

A. triangular
B. square
C. parabolic
D. sinusoidal
Answer» E.
Discussion
5.

For which of the modulated system, the linear amplified modulated stage is used?

A. low level amplitude modulated system
B. high level amplitude modulated system
C. high level frequency modulated system
D. low level frequency modulated system
Answer» B. high level amplitude modulated system
Discussion
6.

For an AM transmitter, class C amplifier can be used after the modulation stage.

A. True
B. False
Answer» C.
Discussion
7.

Single Sideband Modulation (SSB) is generally reserved for point-to-point communication.

A. True
B. False
Answer» B. False
Discussion
8.

Function of duplexer in a RADAR is to permit the use of same antenna for transmission and reception.

A. True
B. False
Answer» B. False
Discussion
9.

Which of the following stage is present in FM receiver but not in AM receiver?

A. Amplitude limiter
B. Demodulator
C. AM amplifier
D. Mixer
Answer» B. Demodulator
Discussion
10.

LCD uses ________

A. sematic crystals
B. twisted nematic crystals
C. nematic crystals
D. cholesteric crystals
Answer» C. nematic crystals
Discussion