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Welcome to the Modulation Techniques for Mobile Radio MCQs Page

Dive deep into the fascinating world of Modulation Techniques for Mobile Radio with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Modulation Techniques for Mobile Radio, a crucial aspect of Wireless and Mobile Communications. In this section, you will encounter a diverse range of MCQs that cover various aspects of Modulation Techniques for Mobile Radio, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Wireless and Mobile Communications.

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Check out the MCQs below to embark on an enriching journey through Modulation Techniques for Mobile Radio. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Wireless and Mobile Communications.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Modulation Techniques for Mobile Radio. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Modulation Techniques for Mobile Radio MCQs | Page 4 of 14

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Q31.
Which of the following are two most important classes of angle modulation?

a.

Amplitude modulation, frequency modulation

b.

Amplitude modulation, phase modulation

c.

Frequency modulation, phase modulation

d.

Single sideband amplitude modulation, phase modulation

Discuss
Answer: (c).Frequency modulation, phase modulation
Q32.
Frequency modulated signal is regarded as the phase modulated signal in which the modulating wave is differentiated before modulation.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q33.
Frequency modulation index defines the relationship between the ______ and bandwidth of transmitted signal.

a.

Frequency of message signal

b.

Amplitude of message signal

c.

Amplitude of carrier signal

d.

Frequency of carrier signal

Discuss
Answer: (b).Amplitude of message signal
Q34.
FM bandwidth is approximated using _______ rule.

a.

Carson’s

b.

Faraday’s

c.

Maxwell’s

d.

Armstrong’s

Discuss
Answer: (a).Carson’s
Q35.
Which of the following are two methods for generating FM signal?

a.

Coherent method, noncoherent method

b.

Product detector, envelope detector

c.

Direct method, indirect method

d.

Slope detector, Zero crossing detector

Discuss
Answer: (c).Direct method, indirect method
Q36.
In indirect method, the carrier frequency is directly varied in accordance with the input modulating signal.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q37.
Which of the following is used to vary the frequency of the carrier frequency in accordance with the baseband signal amplitude variations in direct method of FM generation?

a.

Integrator

b.

Envelope detector

c.

Multivibrator

d.

Voltage controlled oscillators

Discuss
Answer: (d).Voltage controlled oscillators
Q38.
Frequency demodulator is a frequency to amplitude converter circuit.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q39.
Which of the following is not a technique for FM demodulation?

a.

Slope detection

b.

Zero crossing detection

c.

Product detector

d.

Phase locked discriminator

Discuss
Answer: (c).Product detector
Q40.
Which of the following FM demodulator is sometimes known as pulse averaging discriminator?

a.

Slope detection

b.

Zero crossing detection

c.

Quadrature detection

d.

Phase locked discriminator

Discuss
Answer: (b).Zero crossing detection
Page 4 of 14

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