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Z Transform Achievers Practice Quiz -2
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Question 1
The causal signal with z-transform z2(z – a)–2 is: (u[n] is the unit step signal).
Question 2
The z-transform X[z] of a sequence x[n] is given by
. It is given that the region of convergence of X[z] includes the unit circle. The value of x[0] is:
. It is given that the region of convergence of X[z] includes the unit circle. The value of x[0] is: Question 3
Let x[n] = x[−n] and X[Z] be the z-transform of 
If 
is a zero o X(z), which one of the following must also be a zero of X(z).
If is a zero o X(z), which one of the following must also be a zero of X(z). Question 4
Suppose x[n] is an absolutely summable discrete-time signal. Its z-transform is a rational function with two poles and two zeroes. The poles are at z = ±2j. Which one of the following statements is TRUE for the signal x[n]?
Question 5
The z-transform of the sequence x[n] is given by 
with the region of
convergence
with the region of convergence
Question 6Multiple Correct Options
The transfer function of a discrete time LTI system is given by
Which one of the following statements are true in the given option: [Multi Select Question]
Question 7
Consider a discrete time signal given x(n) = (–0.25)nu(n) + (5)nu(–n–1) The region of convergence of its Z-transform would be.
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Sep 29ESE & GATE EC
