Time Domain Analysis – 1 – 5

21. Knowledge of the transfer function of a system is necessary for the calculation of :

(a) time constant
(b) output for a given input
(c) order of the system
(d) none of these

Answer
Answer : (b)

Explanation
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22. The steady – state error of a first – order system to a ramp input is equal to :

(a) the time constant of the system
(b) zero
(c) infinity
(d) none of these

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

23. For a second – order undamped system, the poles are :

(a) purely imaginary
(b) real and equal
(c) real and equal
(d) complex conjugate of each other

Answer
Answer : (a)

Explanation
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24. The transfer function is the ratio of :

(a) output to input
(b) the Laplace transform of output to the Laplace transform of input
(c) the Laplace transform of input to the Laplace transform of output
(d) the inverse Laplace transform of output to the inverse Laplace transform of input

Answer
Answer : (b)

Explanation
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25. Control systems are normally designed with damping factor :

(a) ξ = 0
(b) ξ = 1
(c) ξ > 1
(d) ξ < 1

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

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