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 33 of 120

Discover more Topics under Electronics and Communication Engineering

Discuss
Answer: (d).to find the desired value of carrier frequency with frequency deviation
Q322.
A source generates three symbols with probabilities 0.25, 0.25, 0.50 at a rate of 3000 symbols per second. Assuming independent generation of symbols, the most efficient source encoder would have average bit rate is as
Discuss
Answer: (b).4500 bits/sec
Discuss
Answer: (b).a capacitance in series and an inductance in parallel
Q324.
A narrow band noise n(t) has symmetrical spectrum and has power density spectrum 0.2 x 10โ€พโถ. The power density of quadrature component is
Discuss
Answer: (b).10โ€พโท
Q325.
The radio receivers mostly used now a days are
Discuss
Answer: (b).super heterodyne receivers
Q326.
The reactance of coupling capacitors, for DC quantities, is
Discuss
Answer: (c).infinite
Q327.
An AM wave is given by s(t)AM = 20 (1 + 0.5 cos 10³t + 0.3 cos 10โด t cos 10โถ t) the modulation index of the envelope is
Discuss
Answer: (b).0.58
Q328.
The modulating frequency in frequency modulation is increased from 10 kHz to 30 kHz. The bandwidth is increased by
Discuss
Answer: (a).6
Q329.
An AM signal is detected using an envelope detector, the carrier frequency and modulating signal frequency are 1 MHz and 2 kHz respectively. An appropriate value for the time constant of the envelope detector is
Discuss
Answer: (b).20 ฮผ sec
Discuss
Answer: (c).3/2 times the power of unmodulated carrier