Explore topic-wise MCQs in Signals Systems.

This section includes 8 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.

The Nyquist frequency for the signal x (t) = 3 cos 50πt + 10 sin 300πt – cos 100t is ___________

A. 50 Hz
B. 100 Hz
C. 200 Hz
D. 300 Hz
Answer» E.
Discussion
2.

A discrete time signal is as given belowX [n] = cos (\(\frac{πn}{2}\)) – sin (\(\frac{πn}{8}\)) + 3 cos (\(\frac{πn}{4} + \frac{π}{3})\)The period of the signal X [n] is _____________

A. 16
B. 4
C. 2
D. Non-periodic
Answer» B. 4
Discussion
3.

A Discrete signal is said to be even or symmetric if X(-n) is equal to __________

A. X(n)
B. 0
C. –X(n)
D. –X(-n)
Answer» B. 0
Discussion
4.

A discrete time signal is as given belowX [n] = cos (\(\frac{n}{8}\)) cos (\(\frac{πn}{8}\))The period of the signal X [n] is _____________

A. 16 π
B. 16(π+1)
C. 8
D. Non-periodic
Answer» E.
Discussion
5.

What is the steady state value of The DT signal F (t), if it is known that F(s) = \(\frac{1}{(s+2)^2 (s+4)}\)?

A. \(\frac{1}{16}\)
B. Cannot be determined
C. 0
D. \(\frac{1}{8}\)
Answer» D. \(\frac{1}{8}\)
Discussion
6.

A discrete time signal is given as X [n] = cos \(\frac{πn}{9}\) + sin (\(\frac{πn}{7} + \frac{1}{2}\)). The period of the signal X [n] is ______________

A. 126
B. 32
C. 252
D. Non-periodic
Answer» B. 32
Discussion
7.

The time system which operates with a continuous time signal and produces a continuous time output signal is _________

A. CTF system
B. DTF System
C. Time invariant System
D. Time variant System
Answer» B. DTF System
Discussion
8.

Given a discrete time signal x[k] defined by x[k] = 1, for -2≤k≤2 and 0, for |k|>2. Then, y[k] = x[3k-2] is ______________

A. y[k] = 1, for k = 0, 1 and 0 otherwise
B. y[k] = 1, for k = 1 and -1 for k=-1
C. y[k] = 1, for k = 0, 1 and -1 otherwise
D. y[k] = 1, for k = 0, 1 and 0 otherwise
Answer» B. y[k] = 1, for k = 1 and -1 for k=-1
Discussion