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Control Systems

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

 0.
 10.
 50.
 infinity.

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Control Systems
A property of phase lead compensation is that the

 gain margin is reduced.
 overshoot is increased.
 bandwidth of closed loop system is reduced.
 rise time of closed loop system is reduced.

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Control Systems
Which of the following is/are the advantages of a closed loop control system?

 The closed loop systems are accurate.
 The closed loop systems are less affected by noise.
 both 1 and 2.
 nether 1 nor 2.

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Control Systems
A system of constant voltage and constant frequency is called _________________ system.

  zero.
  feedback.
None of these
  infinite.

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Control Systems
Open loop transfer function,

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

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 0.5
 4
 1
 2

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