# Time Domain Analysis – 1 – 8

36. If the characteristic equation of a system is s^2+4s+10 =0, the system is :

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

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

37. The rise time is the time taken by the output to rise from 10% to 90% of its final steady state value, in case of :

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

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

38. As type of system is increased :

(a) more errors are eliminated
(b) more errors are introduced
(c) closed – loop transfer function
(d) none of these

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

39. If the characteristic equation of a system is s^2+6s+8 =0, the system is :

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

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

40. For critically – damped system, the damping ratio is :

(a) ξ=0
(b) ξ=∞
(c) ξ
(d) ξ=1