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 23 of 120

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Q221.
Which of the following amplifiers has highest output impedance?
Discuss
Answer: (b).CB
Q222.
In a superheterodyne receiver, having no RF amplifier, the IF is 455 kHz. The image frequency at 1000 kHz is
Discuss
Answer: (b).545 kHz
Q223.
Audio tapes have two tracks each 2.5 mm wide.
Discuss
Answer: (b).False
Q224.
Which of the following amplifiers has a voltage gain of less than 1?
Discuss
Answer: (b).CC
Q225.
Some possible disadvantages of high level modulation in TV transmitters are

1. Video monitor has to supply high video voltages upto several hundred volts into highly capacitive loads drawing high current at video frequencies
2. The grid modulated stage presents a varying load to its driver
3. The linearity and high video driving power present design problems

Out of above which are true?
Discuss
Answer: (c).1, 2 and 3
Q226.
If each short element of signal occupies 20 ms, the speed is
Discuss
Answer: (b).50 bauds
Discuss
Answer: (b).sin ฯ‰โ‚t - cos ฯ‰โ‚‚t
Q228.
In ionosphere incidence angle is 60°. The maximum usable frequency fm is equal to
Discuss
Answer: (a).2fc
Q229.
The generally used value of EHV supply in TV receivers is
Discuss
Answer: (b).1 kV per diagonal inch
Q230.
The number of channels available in MF band (300 kHz - 3 MHz) for AM modulating signal of 20 kHz is
Discuss
Answer: (b).67