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.
In an AM transmitter after the modulation stage, class C amplifier
Discuss
Answer: (b).cannot be used
Q472.
The maximum number of AM broadcast stations that can be accommodated in a 100 kHz bandwidth for the highest modulating frequency of 5 kHz will be
Discuss
Answer: (c).10
Q473.
For a short dipole having an effective length less than half the wavelength the radiation resistance is
Discuss
Answer: (a).proportional to length
Q474.
In a low level amplitude modulated system, the amplifier modulated stage must be
Discuss
Answer: (b).linear
Q475.
A noise can be represented as superposition of spectral components. When this noise is passed through a narrow band filter, the output of filter should look like
Discuss
Answer: (a).sinusoidal
Q476.
A narrow band noise show
Discuss
Answer: (b).AM and FM
Q477.
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
Q478.
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
Q479.
An antenna having a length of ฮป/4 and grounded at one end is called
Discuss
Answer: (a).Marconi antenna
Q480.
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