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 17 of 120

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Discuss
Answer: (c).double the highest frequency in audio signal
Q162.
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
Q163.
Which of the following is present in both TRF receiver and superheterodyne receiver?
Discuss
Answer: (a).Detector
Q164.
Which camera tube has highest dark current?
Discuss
Answer: (a).Plumbicon
Q165.
If a sound wave has a frequency of 50 Hz, the wavelength is
Discuss
Answer: (b).6.6 m
Q166.
Skin depth at 1000 MHz in comparison with that at 500 MHz is
Discuss
Answer: (c).1/โˆš2
Q167.
Consider the following

1. Generation of SSB signals
2. Design of minimum phase type filters
3. Representation of band pass signals

Which of the above applications is Hilbert transform used?
Discuss
Answer: (b).1, 2 and 3
Q168.
The dc voltage on plate modulated class C amplifier is 8 kV. If the peak modulating voltage is 4 kV, the peak RF voltage delivered to load is
Discuss
Answer: (d).24 kV
Q169.
The minimum step size required for a Delta modulator operating at 36 samples/sec to track the signal (here u(t) is the unit step function) x(t) = 125t (u(t) - u(t - 1)) + (250 - 125t) (u(t - 1) - u(t - 2)) So that slope overload is avoided, would be
Discuss
Answer: (b).2โ€พโธ
Q170.
An FM signal with a deviation ฮด is passed through a mixer, and has its frequency reduced 5 fold. The deviation in the output of the mixer is
Discuss
Answer: (d).ฮด