Quadrature Carrier Multiplexing MCQ’s

Analog Communication Electronics & Communication Engineering

This set of Analog Communication Multiple Choice Questions & Answers (MCQs) focuses on “Quadrature Carrier Multiplexing”.

1. The advantage of using mechanical filter in filter system of sideband suppression is good band pass.
a) True
b) False

2. Television transmission is possible through ________
a) DSB-SC
b) SSB-SC
c) VSB
d) AM

3. The output stage in a television transmitter is likely to be ________
a) screen modulated
b) plate modulated
c) rectangular modulated
d) grid modulated

4. The rms value of a thermal noise voltage is proportional to (where k is Boltzmann’s constant) _______
a) √k
b) k
c) k2
d) k1⁄3

5. In amplitude modulation, magnitude of side bands is ________ times the carrier amplitude.
a) ma2
b) 4ma
c) ma
d) 2ma

6. Autocorrelation function of white noise is ________
a) an impulse function
b) a step function
c) a constant
d) a variable

7. For a human eye the minimum viewing angle of resolution should be ʎD where D is iris opening and ʎ is wavelength of light.
a) True
b) False

8. Noises which get generated within the receiver is called ________
a) Internal noise
b) External noise
c) Man-made noise
d) Extraterrestrial noise

9. In a Vidicon camera tube, the side of target plate facing the light has a coating of Sno2 (tin oxide) and the side facing electron gun has a coating of antimony trisulphide.
a) True
b) False

10. Marconi antenna ________
a) is a grounded antenna
b) is an ungrounded antenna
c) can either be grounded or ungrounded antenna
d) can neither be grounded nor ungrounded antenna

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