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Control Systems

Control Systems
Resonant peak of a marginally stable system is

 finite value
 infinite
 any of the above
 0

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Control Systems
Time response for a second order control system depends on value of ξ. If ξ>1 then the system is called as

 over damped system.
 undamped system .
 under damped system.
 critically damped system.

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Control Systems
Settling time for 5% tolerance band is -------------

 5T.
 4T.
 3T.
 2T.

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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?

 1.
 2.
 3.
 0.

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Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is

 80°
 60°
 30°
 45°

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Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 F(s)/(s+a)
 e-as*F(s)
 eas*F(s)
 F(s+a)

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