Time Domain Analysis – 1 – 9

41. A system is critically damped. If the gain of the system is increased, the system will behave as :

(a) undamped
(b) underdamped
(c) overdamped
(d) no effect of gain

Answer
Answer : (b)

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

42. The effect of increase in the forward path gain of a control system on the damping ratio is that the damping ratio is :

(a) increased
(b) reduced
(c) not effected
(d) made zero

Answer
Answer : (a)

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

43. For a second – order systems as ξ is increased from zero, the response becomes :

(a) Progressively more oscillatory
(b) Progressively less oscillatory
(c) zero
(d) infinity

Answer
Answer : (b)

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

44. The roots of the characteristic equation are the same as the poles of the :

(a) closed-loop transfer function
(b) open –loop transfer function
(c) forward path transfer function
(d) none of these

Answer
Answer : (a)

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

45. The rise time of a second – order underdamped system is the time taken by the output to rise :

(a) from 10% to 90% of its final steady – state value
(b) from 0%to 100% to 100% of its final steady – state value
(c) from 5% ato 95% of its final steady – state value
(d) from 0% to 50% its final steady – state value

Answer
Answer : (b)

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

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