Explore topic-wise MCQs in Signals & Systems.

This section includes 5 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.

What is the necessary and sufficient condition for a sum of a periodic continuous time signal to be periodic?

A. Ratio of period of the first signal to period of other signals should be constant
B. Ratio of period of the first signal to period of other signals should be finite
C. Ratio of period of the first signal to period of other signals should be real
D. Ratio of period of first signal to period of other signal should be rational
Answer» E.
2.

How is the period of the sum signal computed as?

A. T*n
B. T*T
C. T*N+M
D. T *(n+m)
Answer» B. T*T
3.

When is the sum of M periodic signals periodic?

A. T/T<sub>i</sub> = 1
B. T/T<sub>i</sub> = 4
C. T/T<sub>i</sub> = n<sub>i</sub>
D. T/T<sub>i</sub> = m+n
Answer» D. T/T<sub>i</sub> = m+n
4.

What is the area of a periodic signal in a periodic interval?

A. It depends on the situation
B. It is same as the area in the previous interval
C. It is different in different situations
D. It is the square of the fundamental period
Answer» C. It is different in different situations
5.

A discrete time periodic signal is defined as x(n)= x(n+N)
How is the N defined here?

A. Samples/ cycle
B. Samples/ twice cycle
C. Fundamental period
D. Rate of change of the period
Answer» B. Samples/ twice cycle