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 83 of 120

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Q821.
To couple a coaxial line to a parallel line wire it is best to use
Discuss
Answer: (b).balun
Q822.
The total bandwidth needed for an AM signal at 55.25 MHz with 0.5 MHz video modulation is
Discuss
Answer: (c).1 MHz
Q823.
In PM, without any modulation, all the transmitted pulses have the same
Discuss
Answer: (d).amplitude, spacing and width
Q824.
Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because
Discuss
Answer: (d).the tube has lower efficiency because of aperture mask
Q825.
The modulation index of an AM wave is changed from 0 to 1. The transmitted power is
Discuss
Answer: (c).increased by 50%
Q826.
In a radio receiver the input from local oscillator is fed to
Discuss
Answer: (b).mixer
Q827.
A shadow zone does not receive any space wave
Discuss
Answer: (a).True
Q828.
A radio frequency signal contains the following three frequencies :

850 kHz; 865 kHz and 875 kHz

In order to amplify this signal, which of the following amplifier should be selected?
Discuss
Answer: (d).Tuned voltage amplifier
Q829.
Which of the following pulse-time modulation is least used?
Discuss
Answer: (d).PAM
Discuss
Answer: (d).infinite sidebands