Explore topic-wise MCQs in Signals Systems.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Signals Systems knowledge and support exam preparation. Choose a topic below to get started.

1.

DEFINING_U(T),_R(T)_AND_S(T)_IN_THEIR_STANDARD_WAYS,_ARE_THEIR_DERIVATIVES_DEFINED_AT_T_=_0??$

A. Yes, Yes, No
B. No, Yes, No
C. No, No, Yes
D. No, No, No
Answer» E.
Discussion
2.

The range for unit step function for u(t – a), is ________$#

A. t < a
B. t ≤ a
C. t = a
D. t ‚â• a
Answer» E.
Discussion
3.

Which_is_the_correct_Euler_expression?$

A. exp(2jt) = cos(2t) + jsin(t)
B. exp(2jt) = cos(2t) + jsin(2t)
C. exp(2jt) = cos(2t) + sin(t)
D. exp(2jt) = jcos(2t) + jsin(t)
Answer» C. exp(2jt) = cos(2t) + sin(t)
Discussion
4.

When is a complex exponential signal pure DC?

A. σ = 0 and Ω < 0
B. σ < 0 and Ω = 0
C. σ = 0 and Ω = 0
D. σ < 0 and Ω < 0
Answer» D. ‚âà√¨‚àö√¢ < 0 and ‚âà√≠¬¨¬© < 0
Discussion
5.

Unit Impulse function is obtained by using the limiting process on which among the following functions?

A. Triangular Function
B. Rectangular Function
C. Signum Function
D. Sinc Function
Answer» C. Signum Function
Discussion
6.

Which_one_of_the_following_is_not_a_ramp_function?

A. r(t) = t when t ‚â• 0
B. r(t) = 0 when t < 0
C. r(t) = ‚à´u(t)dt when t < 0
D. r(t) = <sup>du(t)</sup>‚ÅÑ<sub>dt</sub>
Answer» E.
Discussion
7.

Compute d[n]d[n-1] + d[n-1]d[n-2] for n = 0, 1, 2?

A. 0, 1, 2
B. 0, 0, 1
C. 1, 0, 0
D. 0, 0, 0
Answer» E.
Discussion
8.

Find the value of {sum from -inf to inf} exp(jwn)*d[n].

A. 0
B. 1
C. 2
D. 3
Answer» C. 2
Discussion
9.

Find the magnitude of exp(jwt). Find the boundness of sin(t) and cos(t).

A. 1, [-1,2], [-1,2]
B. 0.5, [-1,1], [-1,1]
C. 1, [-1,1], [-1,2]
D. 1, [-1,1], [-1,1]
Answer» E.
Discussion
10.

The fundamental period of exp(jwt) is

A. pi/w
B. 2pi/w
C. 3pi/w
D. 4pi/w
Answer» C. 3pi/w
Discussion
11.

Evaluate the following function in terms of t: {integral from 0 to t}{Integral from -inf to inf}d(t)

A. <sup>1</sup>‚ÅÑ<sub>t</sub>
B. <sup>1</sup>‚ÅÑ<sub>t<sup>2</sup></sub>
C. t
D. t<sup>2</sup>
Answer» D. t<sup>2</sup>
Discussion
12.

Evaluate the following function in terms of t: {sum from -1 to infinity:d[n]}/{Integral from 0 to t: u(t)}

A. t
B. <sup>1</sup>‚ÅÑ<sub>t</sub>
C. t<sup>2</sup>
D. <sup>1</sup>‚ÅÑ<sub>t<sup>2</sup></sub>
Answer» C. t<sup>2</sup>
Discussion
13.

What is the value of u[1], where u[n] is the unit step function?

A. 1
B. 0.5
C. 0
D. -1
Answer» B. 0.5
Discussion
14.

What is the value of d[0], such that d[n] is the unit impulse function?

A. 0
B. 0.5
C. 1.5
D. 1
Answer» E.
Discussion