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Control Systems

Control Systems
Find the order of a system given by

 4.
 3.
 5.
 2.

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Control Systems
Which of the following is/are the characteristics of negative feedback control system?

 Low sensitivity to parameter variations
All of these
 Reduction in gain at the expense of better stability
 Rejection of disturbance signals

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Control Systems
What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback

 3
 2
 0
 1

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Control Systems
A box which tells the effect of inputs on control sub system is known as

 Decision box.
 Logical box.
 State box.
 Data Box.

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Control Systems
Find the relation of damped natural frequency (ωd)

 (ωn) √(1-1/ζ²)
 (ωn) √(1-4ζ²)
 (ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)

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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?

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

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