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 48 of 120

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Q471.
The upper and lower side frequencies for 3 kHz audio modulation with a 27 MHz carrier frequency will be
Discuss
Answer: (b).27.3 and 26.7 MHz
Q472.
Consider the following advantages of phase array radar

1. simple circuitry
2. ability to track and scan simultaneously
3. ability to track many targets together
4. very fast scanning

Which of the above are correct?
Discuss
Answer: (c).2, 3, 4
Q473.
An antenna having a length of ฮป/4 and grounded at one end is called
Discuss
Answer: (a).Marconi antenna
Q474.
The noise figure of individual stages of a two stage amplifier is 2.03 and 1.54 respectively. If gain of first stage is 62, the overall noise figure is
Discuss
Answer: (b).2.055
Discuss
Answer: (c).one electron gun with three separate in line cathodes
Q476.
Which of the following circuits cannot be demodulate SSB?
Discuss
Answer: (c).Phase discriminator
Q477.
During day time ionosphere can be considered to be consisting of
Discuss
Answer: (a).D, E, F1 and F2 layers
Q478.
Baudot code is a six bit code.
Discuss
Answer: (a).True
Discuss
Answer: (c).by a monostable multivibrator
Q480.
Consider the following statements as regards SAW filter

1. The centre frequency is determined by the pitch of IDT comb shaped electrodes
2. The response can be modified shaping the overlap of comb electrodes
3. The response is maximum when acoustic wave has its wavelength equal to pitch
4. When a number of identical electrodes are arranged at the same pitch, the frequency characteristics of the filter is expressed by (sin x)/x

Which of the above statements are correct?
Discuss
Answer: (c).1, 2, 4 only