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Exam Questions Papers - Engineering

Q1:

The transfer function of a system is . The characteristic equation of the system is :

A 2s2 + 6s + 5 = 0

B (s + l)2 (s + 2) = 0

C 2s2 + 6s + 5 + (s + 1 )2(s + 2) = 0

D 2s2 + 6s + 5 - (s + l)2(s + 2) = 0

ANS:C - 2s2 + 6s + 5 + (s + 1 )2(s + 2) = 0

Characteristic equation = 1 + GH = 0 (s + 1)2(s + 2) + (2s2 + 6s + s) = 0 Apply R-H.