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Control Systems

Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is

 80°
 45°
 30°
 60°

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Control Systems
Weighting function is in terms of -----------------

 Laplace transform of the parabolic response
 Laplace transform of the ramp response
 Laplace transform of the impulse response
 Laplace transform of the step response

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Control Systems
The device necessarily used for automatic temperature control in a furnace is

 Thermocouple.
 Any of above.
 Thermostat.
 Auto-transformer.

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Control Systems
Which of the following controller is also known as anticipatory controller?

 proportional controller
 both 1 and 3
 derivative controller
 integral controller

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Control Systems
A controller transfer function is given by . What is its nature and parameter?

 lag compensator, β = 2
 lead compensator, α = 0.2
 lag compensator, β = 10
 lead compensator, α = 0.1

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Control Systems
Time taken by the response to reach and stay within a specified error is called

 Peak time.
 Settling time.
 Peak overshoot.
 Raise time.

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