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 27 of 48

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Q261.
what will be sampling rate to aviod aliasing for the signal m(t) = 10 cos 100 ฯ€t?

a.

โ‰ค 100 n2

b.

โ‰ฅ 100 n2

c.

โ‰ฅ1/25 sec

d.

โ‰ค1/25 sec

Discuss
Answer: (d).โ‰ค1/25 sec
Q262.
Choose the function f(t), - โˆž < t < + โˆž, for which a Fourier series cannot be defined

a.

3 sin (25t)

b.

4 cos (20t + 3) + 2 sin (10t)

c.

exp - | t | sin 25 t

d.

1

Discuss
Answer: (c).exp - | t | sin 25 t
Q263.
A pulse function having magnitude E and duration from t = 0 to t = a can be represented as

a.

sum of two pulse functions

b.

difference of two pulse functions

c.

difference of two step functions each of magnitude E and one originating at t = 0 and the other at t = a

d.

none of the above

Discuss
Answer: (c).difference of two step functions each of magnitude E and one originating at t = 0 and the other at t = a
Q264.
If I(s) = 5(s+250) / s(s+100) , initial value of i(t) is

a.

0

b.

5 A

c.

10 A

d.

- 5A

Discuss
Answer: (b).5 A
Q265.
The DTFT of x(n) = ฮด(n) will be

a.

1

b.

0

c.

โˆž

d.

not defined

Discuss
Answer: (a).1
Q266.
Principle of superposition is applicable to

a.

linear systems only

b.

nonlinear systems only

c.

both linear and non linear system

d.

linear systems and some nonlinear systems

Discuss
Answer: (a).linear systems only
Q267.
The range of value "a" for which system will be stable. If impulse response of DT system is = aโฟ โˆช[n]

a.

a > 1

b.

a < 1

c.

1 < a < โˆž

d.

-1 < a < 1

Discuss
Answer: (d).-1 < a < 1
Q268.
Assertion (A): The number โˆˆ such that the probability that an error is between -โˆˆ and + โˆˆ is 1 is called probable error of single obserevation.

Reason (R): The standard deviation is the arms value of the deviation from the arithmetic mean.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is true, R is false

d.

A is false, R is true

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q269.
If a function has only cosine terms, it must satisfy the equation

a.

f(t) = -f(t)

b.

f(-t) = f(t)

c.

f(-t) = -f(t)

d.

none of the above

Discuss
Answer: (b).f(-t) = f(t)
Q270.
Laplace transform of unit doublet is

a.

1/s

b.

s²

c.

s

d.

none

Discuss
Answer: (c).s
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