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Control Systems

Control Systems
Advantages of open loop control system is/are

 simple and economical.
 reliable.
 accurate.
All of these

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Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 3
 0
 1
 2

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Control Systems
A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator

 a < b.
 a > kb.
 b < a.
 a < kb.

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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?

 1
 1/2
 3/4
 4/3

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Control Systems
Which of the following represents the value of resonant frequency (ωr)?

 (ωn) √(1-ζ²/2)
 (ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)
 2*(ωn) √(1-ζ²)

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Control Systems
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become

 unity
 zero
 0.707
 infinite

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