Electronics & Communication System - Signal Systems

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31.

z-transform converts convolution of time-signals to                        
A. Addition B. Subtraction
C. Multiplication D. Division



32.

For evens signals, convolution and correlation are                        
A. Equivalent B. Not equal to
C. Maximum D. None



33.

The convolution of a signal with an impulse is equal to                        
A. step function B. impulse function
C. ramp function D. the signal itself




34.

No Guard band exists when                        
A. ws>2wm B. ws < 2wm
C. ws=2wm D. ws = wm



35.

Minimum sampling rate for band pass signal is                        
A. 2fm B. 4fm
C. fm/2 D. fm



36.

During sampling time, the output of a sample and hold circuit is                        
A. zero B. signal itself
C. constant D. infinity



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