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Control Systems

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

 0
 1
 3
 2

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Control Systems
With regard to filtering property, the lead compensator is

 low pass filter
 high pass filter
 band reject filter
 bandpass filter

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Control Systems
If a circuit consists of two mass elements, two spring elements and four friction elements. Find the order of transfer function?

 4
 2
 6
 12

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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 > kb.
 a < kb.
 b < a.
 a < b.

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Control Systems
The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is

 25 sec
 ∞ sec
 1 sec
 5 sec

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Control Systems
A proportional plus integral controller

 increases the stability of the system
 it increases rise time
 has high sensitivity
 both 2 and 3

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