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 98 of 120

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Q971.
Consider the following applications/ advantages of radar beacons

1. navigation
2. target identification
3. accurate tracking of enemy targets
4. large increase in maximum range

Which of the above are correct?
Discuss
Answer: (b).1, 2, 4
Q972.
The signal plate of vidicon tube is coated with tin oxide.
Discuss
Answer: (a).True
Q973.
The maximum permissible distance between two samples of a 10 kHz signal
Discuss
Answer: (b).50 ฮผ sec
Q974.
In telephone systems, load is expressed in the unit of
Discuss
Answer: (a).erlangs
Q975.
Which of the following can be used to convert PPM into PWM?
Discuss
Answer: (c).Bistable multivibrator
Q976.
For an antenna of height ht metres, the radio horizon is equal to
Discuss
Answer: (b).4โˆšht km
Q977.
If in a radio receiver, RF signal has a frequency of 800 kHz and local oscillator that of 1000 kHz, then at the output of the mixer, the frequencies found would be __________ kHz.
Discuss
Answer: (c).only 200
Discuss
Answer: (b).the discriminator frequency must not be too low or the system will fail
Q979.
In AM, the modulation envelope has a peak value double the unmodulated carrier level, when the modulation is
Discuss
Answer: (d).100%
Discuss
Answer: (a).synchronous with original clock waveform