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.

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

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

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

A. 16 π
B. 16(π+1)
C. 8
D. Non-periodic
Answer» E.
Discussion
3.

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

A. 126
B. 32
C. 252
D. Non-periodic
Answer» B. 32
Discussion
4.

The signal X (t) = \(e^{j(2t + \frac{π}{6})}\) is ________________

A. Power signal with P∞ = 1
B. Power signal with P∞ = 2
C. Energy signal with E∞ = 2
D. Energy signal with E∞ = 1
Answer» B. Power signal with P∞ = 2
Discussion
5.

The signal X (t) = e-4t u (t) is _______________

A. Power signal with P∞ = \(\frac{1}{4}\)
B. Power signal with P∞ = 0
C. Energy signal with E∞ = \(\frac{1}{4}\)
D. Energy signal with E∞ = 0
Answer» D. Energy signal with E∞ = 0
Discussion
6.

The period of the signal Z (t) = sin3t + cos 4t is _______________

A. periodic without a definite period
B. periodic with a definite period
C. non- periodic over an interval
D. non-periodic throughout
Answer» C. non- periodic over an interval
Discussion
7.

The period of the signal X (t) = 4 sin 6t + 3 sin \(\sqrt{3}\)t is ________________

A. \(\frac{2π}{3}\) s
B. \(\frac{2π}{\sqrt{3}}\) s
C. 2π s
D. Non-periodic
Answer» E.
Discussion
8.

The period of the signal X (t) = 5t – 2 cos 6000 πt is ________________

A. 0.96 ms
B. 1.4 ms
C. 0.4 ms
D. Non-periodic
Answer» E.
Discussion
9.

The period of the signal X (t) = 10 sin 5t – 4 cos 9t is _______________

A. \(\frac{24π}{35}\)
B. \(\frac{4π}{35}\)
C. 2π
D. Non-periodic
Answer» D. Non-periodic
Discussion
10.

The period of the signal X (t) = 24 + 50 cos 60πt is _______________

A. \(\frac{1}{30}\) s
B. 60 π s
C. \(\frac{1}{60π}\) s
D. Non-periodic
Answer» B. 60 π s
Discussion
11.

The odd component of the signal X (t) = ejt is _______________

A. Sin t
B. Cos t
C. Sinh t
D. Cosh t
Answer» B. Cos t
Discussion
12.

The even component of the signal X (t) = ejt is _________________

A. Sin t
B. Cos t
C. Sinh t
D. Cosh t
Answer» C. Sinh t
Discussion
13.

The fundamental period of the signal X (t) = 10 cos2(10 πt) is __________

A. 0.2
B. 0.1
C. 0.5
D. No fundamental period exists
Answer» C. 0.5
Discussion
14.

Given the signalX (t) = cos t, if t

A. Periodic with fundamental period 2π
B. Periodic but with no fundamental period
C. Non-periodic and discontinuous
D. Non-periodic but continuous
Answer» D. Non-periodic but continuous
Discussion