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Time Domain Analysis – 1 – 6

26. The area under a unit – impulse function is :

(a) infinity
(b) zero
(c) unity
(d) none of these

ANSWER

EXPLANATION

27. For underdamped systems, the damping ratio is :

(a) ξ=0
(b) ξ
(c) ξ
(d) ξ=1

ANSWER

EXPLANATION

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

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

ANSWER

EXPLANATION

29. In general, which of the following systems is preferred.

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

ANSWER

EXPLANATION

30. The steady – state response of a system is dependent :

(a) Only on system poles
(b) only on the system poles and the inputs applied
(c) both on the system poles and the inputs applied
(d) none of these

ANSWER

EXPLANATION

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