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 59 of 120

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Q581.
In an AM system, doubling of modulation index doubles the antenna current. The system is
Discuss
Answer: (c).single side band suppressed carrier
Q582.
A frequency multiplier stage should operate as
Discuss
Answer: (c).class C
Discuss
Answer: (b).300 MHz to 3000 MHz
Q584.
A carrier signal at frequency 100 MHz is frequency modulated with modulation index 2 by a signal at 2 kHz. At what frequencies are the sidebands produced?
Discuss
Answer: (d).100 MHz ± 3n kHz, where n is 1, 2, ... S integer
Q585.
Which is not purpose of modulation?
Discuss
Answer: (d).Increase in signal power
Q586.
If ฯ‰ is the frequency of modulating voltage in FM, the modulation index is proportional to
Discuss
Answer: (b).1/ฯ‰
Q587.
Which camera tube has gamma of almost unity?
Discuss
Answer: (d).Saticon
Discuss
Answer: (c).equal to twice the bandwidth of an ideal channel
Discuss
Answer: (c).the air gap of erase head is wider than the air gap of record head
Q590.
When satellite radio beam is aimed towards earth, it illuminates on the earth for an oval shaped area called
Discuss
Answer: (a).foot print