Communication Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Communication Systems, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Communication Systems MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Communication Systems mcq questions that explore various aspects of Communication Systems problems. Each MCQ is crafted to challenge your understanding of Communication Systems principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Communication Systems MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

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

So, are you ready to put your Communication Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Communication Systems MCQs | Page 38 of 120

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Discuss
Answer: (b).to ensure I and Q phase correctly
Q372.
The resonant frequency of an RF amplifier is 1 MHz and its bandwidth is 10 kHz. The Q factor will be
Discuss
Answer: (b).100
Q373.
Two sinusoidal signals of same amplitude and frequencies 10 kHz and 10.1 kHz are added together. The combined signal is given to an ideal frequency detector. The output of the detector is
Discuss
Answer: (b).10.1 kHz sinusoidal
Discuss
Answer: (b).is more in darkness and less in brightness
Q375.
Which of the following are useful in comparing the noise performance of receivers?

1. Input noise voltage
2. Noise figure
3. Noise resistance
4. Noise temperature

Select answer as per the following codes:
Discuss
Answer: (c).2, 3, 4
Q376.
Push pull amplifier is
Discuss
Answer: (a).class B
Discuss
Answer: (a).common head and common amplifier system for recording and playback
Q378.
In a communication system, noise is most likely to affect the signal
Discuss
Answer: (d).in the channel
Q379.
Each frequency in the modulating wave gives rise to four side bands.
Discuss
Answer: (b).False
Q380.
Assertion (A): CCIR-B system has 625 scanning lines per frame and 2 : 1 interlace.

Reason (R): The aspect ratio is 4 : 3
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A