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Control Systems

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

 60°
 45°
 80°
 30°

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Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

 2.0 Volt.
 1.5 Volt.
  2.5 Volt.
  1.0 Volt.

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Control Systems
A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency?

 29.74 ra/s
 32.16 rad/s
 31.41 rad/s
 30.63 rad/s

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Control Systems
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

 lead
 lag-lead
 lead-lag
 lag

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Control Systems
Time taken for the response to rise from zero to 100 % for very first time is called

 Peak time.
 Delay time.
 Rise time.
 Settling time.

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

 infinity.
 20.
 40.
 0.

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