Correct Answer:- Option-A

Question87:-Given a signal, <()=20cosi50rt-+3cos2207¢~7cos3000n7, The Nyquist sampling rate for
this signal is:

A:-150 Hz
B:-1.5 kHz
C:-3 kHz
D:-6 kHz
Correct Answer:- Option-C
Question88:-The Zero-Order-Hold transfer function is given by:
ಹ್ಯಾ?)

7

8:-

D:-¢ doen)
Correct Answer:- Option-C

Question89:-Consider the following statements:
|. Changing the order of the convolution operands does not affect the result of
the

convolution integral.
||. Convolution is a linear operation with respect to addition.
Ill. If the two operands of the convolution integral are shifted in time, then the
result of the

convolution integral is shifted by a duration that is the sum of the individual
time shifts

introduced in the convolution operands.
IV. Convolving a signal with a unit step function produces the running integral of
the

original signal as a function of time t.

Which of the following is correct combination with respect to the statements given
above?
A:-All the statements, (I, Il, Ill and IV) are True
B:-Only | and Il are True
C:-Only | and IV are True
D:-All are False
Correct Answer:- Option-A
Question90:-A first-order hold converts an ideally sampled signal into:
A:-A delayed sampled signal
B:-A piece-wise linear signal
C:-A continuous and smooth signal which is same as the original signal
D:-A piece-wise constant signal

Correct Answer:- Option-B