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 49 of 120

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Q481.
In telephone, the dial tone has a frequency of
Discuss
Answer: (c).33 Hz
Discuss
Answer: (b).in PWM receivers to reduce impulse noise
Q483.
For a good public address system the sound intensity at the farthest point should be at least
Discuss
Answer: (c).80 dB over threshold of hearing
Discuss
Answer: (c).acts as a single antenna of twice the height
Q485.
Reception through space wave is limited to line of sight distance.
Discuss
Answer: (a).True
Q486.
A video transmission system transmits 625 picture frames per second. Each frame consist of a 400 x 400 pixel grid with 64 intensity levels per pixel. The data rate of the system is
Discuss
Answer: (c).600 Mbps
Discuss
Answer: (c).Equalization is unnecessary
Q488.
Which one is digital modulation technique?
Discuss
Answer: (d).None
Q489.
Since noise phase modulated FM wave, as the noise sideband frequency approaches the carrier frequency, the noise amplitude
Discuss
Answer: (c).is decreased
Q490.
Consider the following statements as regards DPSK and DEPSK

1. DPSK demodulator requires a device which operates at carrier frequency and provides a delay of bit time Tb
2. In DPSK, synchronous demodulation recovers the signal b(t) and the decoding of b(t) to generate d(t) is done at base band
3. In both DPSK and DEPSK errors always occur in pairs

Which of the above statements are correct?
Discuss
Answer: (b).1 and 2