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Control Systems

Control Systems
Transient response is improved in case of

 both A and B.
 lag network.
 lead network.
 none of these.

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 10.
 1/11.
 Zero.
 ¾.

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Control Systems
Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?

 90°,180°
 60°,240°
 90°,270°
 0°, 180°

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Control Systems
Force balancing equation of a dash-pot element is (where, x = displacement)

 B d2x/dt2
 B dx/dt
 B *x
None of these

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Control Systems
For a unity feedback control system open loop transfer function then position error constant is

 40.
 infinity.
 0.
 20.

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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 ?

 0.
 3.
 1.
 2.

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