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 86 of 120

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Q851.
If e = 10 sin(10โธ t + 3 sin 10โด t) then modulating frequency is
Discuss
Answer: (b).1590 Hz
Q852.
When a signal is quantized such that the step size S is small in comparison with the peak to peak range of the signal, the mean square quantization error is equal to
Discuss
Answer: (d).S²/12
Q853.
Assertion (A): Many times a radar cannot detect 'grounding hopping' military aircraft.

Reason (R): Ground interference limits the range of radar.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q854.
Entropies associated with an extremely unlikely message and that with an extremely likely message are respectively
Discuss
Answer: (a).0 and 0
Q855.
For TV broadcast, picture signal is modulated in
Discuss
Answer: (d).AM
Q856.
Assertion (A): Stubs, directional couplers and baluns are very commonly used in communication systems

Reason (R): Characteristic impedance of a line is an important parameter.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q857.
Audio frequency range lies between
Discuss
Answer: (a).20 Hz and 20 kHz
Q858.
Assertion (A): SSB and ISB receivers have good S/N ratio

Reason (R): SSB and ISB receivers have good suppression of adjacent channels.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Discuss
Answer: (a).to attenuate high frequencies
Discuss
Answer: (a).Envelope detector followed by a low pass filter