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Control Systems

Control Systems
Find the order of a system given by

 5.
 4.
 2.
 3.

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Control Systems
Which of the following controller has sluggish response?

 both 2 and 3
 integral controller
 derivative controller
 proportional controller

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Control Systems
Sparking between the contacts can be reduced by inserting

 a resistor in the line.
 a capacitor in series with the contacts.
 a reactor in the line.
  a capacitor in parallel with the contacts.

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Control Systems
Consider a network function H(s) = 2(s+3)/{(s+2)(s+4)}. What is the steady state response due to step input?

 4/3
 3/4
 1
 1/2

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

 40.
 20.
 infinity.
 0.

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Control Systems
A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1?

 Tω1 = cot(ω1)
 Tω1 = tan(ω1)
 ω1 = cot(Tω1)
 ω1 = tan(Tω1)

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