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Control Systems

Control Systems
Open loop transfer function,

 all pass filter.
 band reject filter.
None of these
 band stop filter.

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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.
 Zero.
 1/11.
 ¾.

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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

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

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Control Systems
Which of the following controller is also known as anticipatory controller?

 derivative controller
 proportional controller
 both 1 and 3
 integral controller

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Control Systems
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value?

 0
 1
 3/5
 1/4

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

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

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