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Control Systems

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
 1/2
 3/4
 1

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 -10dB/decade.
 -20dB/decade.
 +10dB/decade.
 0 dB/decade

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

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

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Control Systems
A proportional plus integral controller

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

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

 20.
 0.
 infinity.
 40.

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Control Systems
The transfer function of a system is given as below, if a = 0.1, then the steady state error to unity ramp input will be

 0.35.
 0.49.
 0.16.
 0.25.

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