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 45 of 120

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Q441.
A pure tone at 1000 Hz has a dB level of 40 dB. If the required dB level is 100, the number of such tones is
Discuss
Answer: (d).10โถ
Q442.
The spectrum of the white noise and an impulse function is similar in following aspects
Discuss
Answer: (a).both have similar magnitude spectrum
Discuss
Answer: (b).the probability that a called for connection is established
Discuss
Answer: (b).very large carrier power
Discuss
Answer: (a).before the detector stage
Q446.
The modulation index of a narrowband FM signal is
Discuss
Answer: (a).nearly equal to 0.3
Q447.
Which is a digital coding technique?
Discuss
Answer: (d).All
Q448.
Which of the following noise sources is different from others?
Discuss
Answer: (c).Atmospheric
Q449.
For the transmission of normal speech, the PCM channel needs a bandwidth of __________ kHz.
Discuss
Answer: (b).4
Q450.
How much is contributed by each bit in the code word of a PCM system under uniform and symmetric quantization to the signal to noise ratio?
Discuss
Answer: (d).6 dB