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 22 of 120

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Discuss
Answer: (d).rectification property of diode
Q212.
In the equivalent circuit of a moving coil cone type loudspeaker, the mass of the moving system is represented by
Discuss
Answer: (c).an inductance
Discuss
Answer: (b).frequency modulation
Q214.
A 200 Hz sound wave is to be transmitted by a 1000 kHz radio wave using frequency modulation. The instantaneous frequency variation will be
Discuss
Answer: (b).200 times a second
Discuss
Answer: (b).telecasting feature films
Q216.
A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?
Discuss
Answer: (d).4.23 kW
Q217.
A device has two resistances 300 ฮฉ and 200 ฮฉ respectively. The noise voltages due to these two resistance calculated separately are 5.38 ฮผV and 4.38 ฮผV respectively. When both of them are used together, the noise voltage will be
Discuss
Answer: (d).6.94 ฮผV
Q218.
A directional microphone gives an output of 0.5 mV whereas an omnidirectional one gives an output of 0.5 ฮผV in the same position for the same sound pressure. The directivity of the directional microphone is
Discuss
Answer: (c).60 dB
Q219.
If Eb, the energy per bit of a binary digital signal is 10โ€พโถ watt sec. and the one sided power spectral density of the white noise N0 = 10โ€พโต W/Hz, then the output SNR of the matched filter is
Discuss
Answer: (d).13 dB
Q220.
Consider the following statements about Rhombic antenna

1. It is non resonant
2. It is a broad band antenna
3. It is ideally suited for HF transmission

Which of the above are correct?
Discuss
Answer: (a).1, 2, 3