Signals and Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Signals and 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 Signals and 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 Signals and Systems mcq questions that explore various aspects of Signals and Systems problems. Each MCQ is crafted to challenge your understanding of Signals and 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 Signals and 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 Signals and 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 Signals and Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Signals and Systems MCQs | Page 31 of 48

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Q301.
The function Ae^[(s + jฯ‰)t] represens a rotating phasor having a magnitude increasing with time.
Discuss
Answer: (a).True
Q302.
If ฮด(t) denotes a unit impulse, Laplace transform of d²/dt²[ฮด(t)] is
Discuss
Answer: (b).
Discuss
Answer: (d).has a period 2ฯ€, decays with increasing x, is an even function and has zeros at nฯ€, n = ± 1, ± 2
Q304.
Which of the following represents a stable system?

1. Impulse response decreases exponentially.
2. Area within the impulse response in finite.
3. Eigen values of the system are positive and real.
4. Roots of the characteristic equation of the system are real and positive.

Select the answer using the following codes:
Discuss
Answer: (d).1, 2
Discuss
Answer: (a).average power S of waveform
Q306.
X and Y are two random variable and Z = X + Y. Let ฯƒ²x, ฯƒ²y and ฯƒ²z be variance of X, Y and Z. Then
Discuss
Answer: (a).ฯƒ²z = ฯƒ²x + ฯƒ²y
Q307.
Assertion (A): The conditions under which it is possible to write Fourier series of a periodic function are called Drichlet conditions.

Reason (R): If f(t) = - f(- t), it is refereed to as odd symmetry.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Discuss
Answer: (a).c1 F1 (jฯ‰) + c2 F2(jฯ‰)
Q309.
If a linear time invartant system is exicited by a pure random signal like white noise, the output of the linear system will have which of the following properties?
Discuss
Answer: (c).Output will be random
Discuss
Answer: (d).2โˆช(t) - 1