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 39 of 120

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Q381.
An S/N ratio of 3 expressed in db is
Discuss
Answer: (a).4.8 dB
Q382.
The material used for the magnet of moving coil cone type loudspeaker is
Discuss
Answer: (d).Alnico
Discuss
Answer: (b).625 lines with 2 : 1 interlace
Q384.
The power to the base unit of a cordless telephone is supplied by
Discuss
Answer: (b).AC mains
Discuss
Answer: (a).45 two way communications
Discuss
Answer: (d).both rectifier and inverter
Q387.
A transmitter power of 10 W is increased by 30 dB. The effective radiated power is
Discuss
Answer: (c).10000 W
Q388.
It is desired to couple a coaxial line to a two parallel wire line. It is best to use
Discuss
Answer: (b).balun
Q389.
24 telephone channels are frequency division multiplexed using an SSB modulation. Assuming 3 kHz per channel, the required band width is
Discuss
Answer: (d).72 kHz
Q390.
If velocity of sound waves in air at 0°C is 330 m/s, the velocity at 40°C is about
Discuss
Answer: (c).353 m/s