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 18 of 120

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Q171.
Consider the following reasons for using antenna coupler

1. To prevent illegal radiation of spurious frequencies
2. To tune out reactive components of antenna impedance
3. To have correct value of load impedance for transmitter

Which of the above are correct?
Discuss
Answer: (a).1, 2, 3
Q172.
Which of the following microphones works on the principle of Faraday's law?
Discuss
Answer: (c).Moving coil
Q173.
In a CE amplifier connection, the emitter is at ground potential for
Discuss
Answer: (a).AC quantities
Q174.
In an AM wave with m = 1, the carrier is suppressed. The resulting power saving will be
Discuss
Answer: (c).2/3
Discuss
Answer: (a).a power ratio
Q176.
Which of the following sampling frequencies is considered adequate in voice telephony?
Discuss
Answer: (b).8 kHz
Q177.
In telephone systems the relation between load 蟻, number of calls initiated during a specified interval 位 and average duration of a call (h) is
Discuss
Answer: (a).蟻 = 位h
Discuss
Answer: (b).grid G2 accelerates electrons and grid G3, slows down electrons
Discuss
Answer: (c).double the highest frequency in audio signal
Q180.
Consider the following statements about loop antenna

1. It is suitable for direction finding application
2. It is a single turn or multiturn coil carrying RF current
3. The loop is surrounded by a magnetic field everywhere perpendicular to the loop

Which of the above statements are correct?
Discuss
Answer: (c).1, 2, 3