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 73 of 120

Discover more Topics under Electronics and Communication Engineering

Q721.
A pure tone at 1000 Hz has a dB level of 50 dB. If two such tones exist simultaneously the dB level is about
Discuss
Answer: (b).53 dB
Discuss
Answer: (b).predominant spectral purity of colour light
Q723.
Consider the following statement:
The radar pulse must be flat topped to

1. allow accurate range measurement
2. allow good minimum range
3. prevent frequency changes in magnetron
4. make the returned echoes easier to distinguish from noise.

Which of the above are correct?
Discuss
Answer: (b).1, 2, 3
Q724.
Filter method and phasing method are the methods for generating
Discuss
Answer: (a).SSB signal
Discuss
Answer: (a).the amplitude of carrier varies in accordance with the amplitude of the modulating signal
Discuss
Answer: (d).Probability of noise spike generation is less in AM
Q727.
In a wave the electric field lines are vertical. Then the wave is
Discuss
Answer: (b).vertically polarized
Q728.
In FM and AM the ratio of signal to noise ratio at the detector output least depends upon
Discuss
Answer: (c).carrier frequency
Q729.
Which of the following can provide two or more voice circuits with the same carrier?
Discuss
Answer: (b).Carrier reinsertion
Q730.
A linear diode detector uses RC filter. As modulation index increases the maximum permissible value of time constant RC
Discuss
Answer: (b).decreases