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 65 of 120

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Q641.
Which of the following is unlikely to happen when quantising noise is decreased in PCM?
Discuss
Answer: (d).All of the above
Q642.
For real and odd signals, the Fourier series coefficient an is
Discuss
Answer: (b).purely real and even
Q643.
An amplitude modulated wave is

e = 50 (1 + 0.4 cos 1000 t + 0.3 cos 10000 t) cos 10โท t
Discuss
Answer: (a).0.5
Q644.
The efficiency of a horn speaker is about
Discuss
Answer: (b).40%
Discuss
Answer: (b).the wave gets distorted
Q646.
The width of air gap on recording head in a tape recorder is about
Discuss
Answer: (a).6 micron
Q647.
In a stereo tape recorder the speed of the tape is
Discuss
Answer: (d).4.75 m/s
Q648.
Which of the following refers to SSB suppressed carrier amplitude modulated system?
Discuss
Answer: (c).J3E
Q649.
The frequency at which the piezoelectric effect occurs is primarily determined by
Discuss
Answer: (b).thickness of the crystal
Q650.
In a 4-ary FSK, the frequencies are separated by fs. Then they are
Discuss
Answer: (c).orthogonal