Question 11 : What is the T in the relation z=e^sT?
1. Sampling Period
2. Time Period
3. Normal Period
4. Average Period
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Question 12 : The convolution of a discrete signal with itself is _________
1. Squaring the signal
2. Doubling the signal
3. Adding two signals
4. is not possible
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Question 13 : The impulse response of a discrete time system is the inverse Z-transform of the transfer function of the system in z-domain.
1. True
2. False
3.
4.
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Question 14 : If σ<0, the point in the z plane lies __ of the circle |z|=1.
1. Interior
2. Exterior
3. On the circumference
4. Nowhere near
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Question 15 : What is the relationship b/n laplace transform and z-transform of a function?
1. Impulse invariant transformation
2. z=e^-sT
3. s=jw
4. s=σ
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Question 16 : Discrete time convolution is not possible in MATLAB.
1. True
2. False
3.
4.
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Question 17 : The unit step response of an L.T.I. system is the convolution of a step signal and it's ________
1. Impulse response
2. Ramp response
3. Parabolic response
4. Time response
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Question 18 : If x(t-5)=0 for t<5 = A for t>=5, the signal is ___________
1. Causal
2. Symmetric
3. Linear, Time Invariant and Causal
4. Cannot be determined
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Question 19 : The output of p=conv([ones(1,50)],[ones(1,100)]) and p=conv([ones(1,100)],[ones(1,50)]) are same.
1. True
2. False
3.
4.
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Question 20 : The unit delay operator can be thought of in the z-domain as ___________
1. Multiplication by z^-1
2. Multiplication by z
3. Multiplication by z^-2
4. Multiplication by z²
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