Time Domain Analysis – 1 – 7

31. As type of system is increased :

(a) stabilization become more difficult
(b) stabilization becomes very easy
(c) there is no effect on errors
(d) none of these

ANSWER

EXPLANATION

32. Due to an increase in the forward path gain of a control system, the steady – state error is :

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

ANSWER

EXPLANATION

33. The settling, time of the second – order linear systems is preferred.

(a) 4 times the time constant of system
(b) 2times the time constant of the system
(c) ¼ times the time constant of the system
(d) none of these

ANSWER

EXPLANATION

34. If the characteristic equation of a system is s^2+ 2s+ 1=0, the system is :

(a) undamped
(b) overdamped
(c) critically – damped
(d) underdamped

ANSWER

EXPLANATION

35. For overdamped systems, the damping ratio is :

(a) ξ =∞
(b) ξ=0
(c) ξ=1
(d) ξ=1

ANSWER

EXPLANATION

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