Explore topic-wise MCQs in Signals & Systems.

This section includes 13 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{ n}{2}) sin ( frac{ n}{8}) + 3 cos ( frac{ n}{4} + frac{ }{3}) )

A. nThe period of the signal X [n] is _____________
B. 16
C. 4
D. 2
E. Non-periodic
Answer» B. 16
Discussion
2.

A discrete time signal is as given below
(X [n] = cos ( frac{n}{8}) cos ( frac{ n}{8}) )

A. nThe period of the signal X [n] is _____________
B. 16
C. 16( +1)
D. 8
E. Non-periodic
Answer» E. Non-periodic
Discussion
3.

A discrete time signal is as given below
(X [n] = cos frac{ n}{9} + sin ( frac{ n}{7} + frac{1}{2}) )

A. nThe period of the signal X [n] is ______________
B. 126
C. 32
D. 252
E. Non-periodic
Answer» B. 126
Discussion
4.

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

A. Power signal with P<sub> </sub> = 1
B. Power signal with P<sub> </sub> = 2
C. Energy signal with E<sub> </sub> = 2
D. Energy signal with E<sub> </sub> = 1
Answer» B. Power signal with P<sub> </sub> = 2
Discussion
5.

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

A. Power signal with P<sub> </sub> = ( frac{1}{4} )
B. Power signal with P<sub> </sub> = 0
C. Energy signal with E<sub> </sub> = ( frac{1}{4} )
D. Energy signal with E<sub> </sub> = 0
Answer» D. Energy signal with E<sub> </sub> = 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{2 }{3} ) s
B. ( frac{2 }{ sqrt{3}} ) s
C. 2 s
D. Non-periodic
Answer» E.
Discussion
8.

The period of the signal X (t) = 5t 2 cos 6000 t 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{24 }{35} )
B. ( frac{4 }{35} )
C. 2
D. Non-periodic
Answer» D. Non-periodic
Discussion
10.

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

A. ( frac{1}{30} ) s
B. 60 s
C. ( frac{1}{60 } ) s
D. Non-periodic
Answer» B. 60 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 t) is __________

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