Practice Signals Systems Assessment Multiple Choice Questions with Answers Quiz-1 - MCQGeeks.com

Q.1.

What is a fundamental angular frequency?

a) The inverse of the fundamental time period
b) The inverse of fundamental frequency
c) Fundamental frequency in radians
d) Fundamental frequency in degree

Explanation

Q.2.

What is the period of cos+ sin14t?

a) 4π
b) π
c) 2π
d) 3π

Explanation

Q.3.

What is the periodicity of a discrete time signal?

a) 2πm/w
b) 2πm/w
c) 2πm/w
d) 2πm/w

Explanation

Q.4.

What is the condition of a periodicity of exponential signal eαt?

a) α=1
b) α=2
c) α=3
d) Depends on equation

Explanation

Q.5.

Is the sum of discrete time periodic signals periodic?

a) No, they are not
b) Yes they are
c) Depends on the signal
d) Not periodic if their ratio is not rational

Explanation

Q.6.

How can we generate a periodic signal from a periodic signal itself?

a) By extending a signal with duration T
b) Cannot be extended
c) By extending the periodic signal’s amplitude
d) By extending the sugar with duration 2π

Explanation

Q.7.

Is a non periodic signal same as aperiodic signal?

a) No, it is not same as an aperiodic signal
b) Yes it is the other name of aperiodic signal
c) It is a branch of aperiodic signal
d) Aperiodic signal is a branch of non periodic signal

Explanation

Q.8.

What is the period of the signal: 2cost/6?

a) 8π
b) 16π
c) 12π
d) 10π

Explanation

Q.9.

When a continuous signal is a mixture of two continuous periodic signals, what is its periodicity?

a) LCM of the periods of the two signals, provide their ratio is unity
b) LCM of the periods of the two signals, provide their ratio is rational
c) HCF of the periods of the two signals, provide their ratio is rational
d) LCM of the periods of the two signals provide their ratio is real

Explanation

Q.10.

Is the signal eαt periodic?

a) Not periodic
b) Yes periodic
c) Depends on the value of
d) Semi- periodic

Explanation