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 59 of 120

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Q581.
Cross talk is due to reception of portions of a signal from one channel into another.
Discuss
Answer: (a).True
Q582.
If there are M equally likely and independent messages and M = 2แดบ where N is an integer, the information in each message is equal to
Discuss
Answer: (a).N bits
Q583.
A radar beacon is a small radar set having a receiver, a separate transmitter and an antenna.
Discuss
Answer: (a).True
Q584.
In the above case the total power in the modulated wave double sideband, suppressed carrier AM will be
Discuss
Answer: (b).400 W
Q585.
If the plate supply voltage for a plate modulated class C amplifier is E, the maximum plate cathode voltage could be almost as high as
Discuss
Answer: (c).3 E
Q586.
If the carrier of a 100 percent modulated AM wave is suppressed, the percentage power saving will be
Discuss
Answer: (a).50
Q587.
The characteristics of H and V sync pulses in a colour TV receiver are

1. H sync, pulses are narrow and have frequency of 15625 Hz
2. V sync, pulses are much wider and have frequency of 50 Hz
3. H and V pulses have almost the same size but frequencies of 15625 and 50 Hz respectively
4. V sync, pulses are very narrow but H sync, pulses are wide and their frequencies are 15625 Hz and 50 Hz respectively

Which of the above are correct?
Discuss
Answer: (a).1 and 2 only
Q588.
Bandwidth for practical PCM system is (where n is no. of channels, N length of PCM codes)
Discuss
Answer: (a).2n N fm Hz
Q589.
Circuit switching, Message switching and Packet Switching Network belong to which of the following systems?
Discuss
Answer: (a).Computer communication system
Q590.
Which of the following is the main advantage of PCM system?
Discuss
Answer: (a).Lower noise