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 74 of 120

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Q731.
Assertion (A): Water waves are longitudinal but EM waves are transverse

Reason (R): In an EM wave electric field, magnetic field and propagation are mutually perpendicular.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q732.
Some multiplexing arrangements for telephone system are

1. Space multiplexing
2. Time division multiplexing
3. Frequency division multiplexing

Which of the above allow transmission of many independent signals over a single channel?
Discuss
Answer: (b).2 and 3 only
Q733.
Industrial noise has the frequency range of
Discuss
Answer: (d).1 to 600 MHz
Discuss
Answer: (a).proportional to bandwidth (B)
Q735.
The characteristic impedance of coaxial cable is about
Discuss
Answer: (d).75 ohm
Q736.
The diameter and thickness of CD are
Discuss
Answer: (c).12 cm and 0.6 mm
Q737.
If e = 10 sin(10โธ t + 3 sin 10โด t) then carrier frequency is
Discuss
Answer: (c).15.9 MHz
Q738.
Thermal noise is independent of
Discuss
Answer: (c).centre frequency
Q739.
The decorative lighting works on the principle of
Discuss
Answer: (a).periodic switching on and off
Q740.
In an oscillator crystal, the parallel resonant frequency is
Discuss
Answer: (a).equal to