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 90 of 120

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Q891.
The noise sources shot noise, partition noise and thermal noise are associated with which component
Discuss
Answer: (a).BJT
Q892.
Consider the following statements as regards communication receiver

1. Variable sensitivity is used to eliminate selective fading
2. A product demodulator can be used to receive Morse code
3. The noise limiter cuts off receiver output during a noise pulse
4. Double conversion is used to improve image rejection

Which of the above statements are correct?
Discuss
Answer: (c).2, 3, 4
Discuss
Answer: (a).proportional to voltage and inversely proportional to Zโ‚€
Q894.
The power rating of radio transmitters is around
Discuss
Answer: (c).10 kW
Q895.
Which of the following microphones has bidirectional feature?
Discuss
Answer: (b).Ribbon
Q896.
In TV transmitter some possible advantages of IF modulation are

1. The modulator section and visual exciter can be solid state devices
2. VSB filter can be introduced at low power level
3. The subsequent stages following VSB filter can be tuned permanently for wideband linear operation
4. It is economical

which of the above are true?
Discuss
Answer: (d).1, 2, 3 and 4
Q897.
A source is radiating power equally in all directions. If source power is P, the power density at distance d is
Discuss
Answer: (a).P/4ฯ€d²
Discuss
Answer: (d).7 to 15 times as large channel
Q899.
Capture effect occurs in
Discuss
Answer: (b).FM
Discuss
Answer: (a).crystal microphone