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Test: The Z Transform Analysis Of Sampled-Data Control Systems - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: The Z Transform Analysis Of Sampled-Data Control Systems

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Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 1

The DFT of a signal x(n) of length N is X(k). When X(k) is given and x(n) is computed from it, the length of x(n)

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 1

Explanation: When X (k) is given and x (n) is computed from it, the length of x (n) is increased to infinity.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 2

The system having input x (n) related to output y(n) as y (n) = log |x (n)| is:

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 2

Explanation: As y (n) is the function of x (n) hence it is nonlinear but it is bounded and also depends upon past and present values therefore it is stable and causal respectively.

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Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 3

Zero-order hold used in practical reconstruction of continuous-time signals is mathematically represented as a weighted-sum of rectangular pulses shifted by:

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 3

Explanation: Zero-order hold is used to reconstruct the continuous-time signal which is represented as a weighted sum of rectangular pulses shifted by integer multiples of the sampling interval.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 4

When two honest coins are simultaneously tossed, the probability of two heads on any given trial is:

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 4

Explanation: Total outcomes =4
Favorable outcomes =1
Hence probability =1/4.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 5

A continuous-time periodic signal x(t), having a period T, is convolved with itself. The resulting signal is

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 5

Explanation: Periodic having a period T Convolution of a periodic signal (period T) with itself will give the same period T.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 6

If the Fourier series coefficients of a signal are periodic then the signal must be

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 6

Explanation: Discrete-time, periodic these are the properties of the discrete-time periodic signal.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 7

The region of convergence of a causal finite duration discrete-time signal is

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 7

Explanation: For discrete time signal for any causal system the region of convergence is always entire z-plane but except z =0.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 8

The probability cumulative distribution function must be monotone and

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 8

Explanation: The cumulative distribution function that is monotone and non-decreasing or can be increasing.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 9

Convolution is used to find:

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 9

Explanation: Convolution is the combination of addition and multiplication of the signals and used to find the impulse response of the LTI system.

Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 10

The Fourier Transform of a rectangular pulse is

Detailed Solution for Test: The Z Transform Analysis Of Sampled-Data Control Systems - Question 10

Explanation: The Fourier Transform of a rectangular pulse that is the sinc function.

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