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Test: Communication- 3 - Electrical Engineering (EE) MCQ


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25 Questions MCQ Test - Test: Communication- 3

Test: Communication- 3 for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Communication- 3 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Communication- 3 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Communication- 3 below.
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Test: Communication- 3 - Question 1

The frequency range for satelite communication is

Test: Communication- 3 - Question 2

Digital modulation technique are used in ratelite communication system because

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Test: Communication- 3 - Question 3

In a PLL

Test: Communication- 3 - Question 4

What bandwidth is needed for an FM signal thathas a peak deviation of ± 3 kHz and handleraudio signals from 200 Hz to 5 kHz.

Test: Communication- 3 - Question 5

Main factor that determine the accuracy of areconstructed PCM signal is the

Test: Communication- 3 - Question 6

Polarization mode dispersion is mainly observedin

Test: Communication- 3 - Question 7

The spectrum of a band pass signal spans from 20 kHz to 30 kHz. Signal can be recoveredideally from the sampled values when sampling rate is at least

Test: Communication- 3 - Question 8

The nyquist rate for the signal x(t) = 2 cos ( t) cos (t) in

Test: Communication- 3 - Question 9

The quantisation noise of a PCM system dependsan

Test: Communication- 3 - Question 10

Consider the two signals

x1 = 5 cos ( )

x2 = 2 cos ( ) cos (t)

The minimum sampling rate is

Test: Communication- 3 - Question 11

A single mode fibre does not suffer from which type of dispersion

Test: Communication- 3 - Question 12

Which of the following mode introduces partition noise ?

Test: Communication- 3 - Question 13

What was the first commercial geostationarycommunication satelite ?

Test: Communication- 3 - Question 14

In an optical fiber, the light beam propagator dueto which one of the following ?

Test: Communication- 3 - Question 15

If the value of a resistor creating thermal noise isdoubled, the noise generated is

Test: Communication- 3 - Question 16

Which one of the following is an indirect way ofgenerating FM ?

Test: Communication- 3 - Question 17

Tropospheric scatter communication is used forwhich frequency bond ?

Test: Communication- 3 - Question 18

Why does an FM radio station perform betterthan AM station radiating the same total power?

Test: Communication- 3 - Question 19

In a PCM system, if we increase the levels from 2 to 8, how do the relative bandwidthrequirement varies ?

Test: Communication- 3 - Question 20

How can quantisation noise be reduced ?

Test: Communication- 3 - Question 21

Light travels along optical fibres by whichmechanism ?

Test: Communication- 3 - Question 22

72. What is the reason for using frequencies of theorder of a few GHz in satelite communication ?

Test: Communication- 3 - Question 23

Which one of the following blocks is not commonin both AM ad FM receivers ?

Test: Communication- 3 - Question 24

An analog signal has significant spectralcomponents from 1 kHz to 5 kHz. What is theNyquist rate for this signal ?

Test: Communication- 3 - Question 25

A ckt producer an output y(t) = a + b x2(t) wherex(t) is its input. This ckt can produce

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