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 113 of 120

Q1121.
In a low level AM system, the modulated amplifiers stage must be
Discuss
Answer: (d).linear devices
Discuss
Answer: (a).measure of Uncertainty
Q1123.
Quantization noise occurs in
Discuss
Answer: (b).DM
Q1124.
AC hum is picked up from power cables
Discuss
Answer: (b).False
Discuss
Answer: (b).Precision in Line Tube
Q1126.
In an SSB transmitter one is most likely to find
Discuss
Answer: (c).class B RF amplifier
Q1127.
The antenna current of an AM transmitter is 8 A. When only the carrier is sent, but it increases to 8.93 A. when the carrier is sinusoidally modulated. The percentage modulation is nearly
Discuss
Answer: (d).70%
Discuss
Answer: (a).six profiles and four levels
Discuss
Answer: (a).two 0s and three 0s in each code group
Q1130.
Consider the following statements as regards BPSK and QPSK:

1. In BPSK we deal individually with each bit of duration Tb
2. In QPSK we lump two bits to form a symbol
3. In both BPSK and QPSK signal changes occur at bit rate
4. In QPSK the symbol can have any one of four possible values

Which of the above statements are correct?
Discuss
Answer: (c).1, 2, 4