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Control Systems

Control Systems
Which of the following is/are the example of actuator?

 Hydraulic motor
 Electric motor
 All
 Pneumatic motor

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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 the gain k is increased to infinity, then damping ratio will tend to become

 0.707
 unity
 infinite
 zero

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

 20.
 infinity.
 0.
 40.

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Control Systems
The type of a control system is obtained from -------------- transfer function?

 closed loop
 open loop
 none of above.
 both open loop and closed loop

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Control Systems
A control system has open loop transfer function . Break away point is lies between

 0 and -4.
 any of the above.
 -4 and -6.
 0 and 4.

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Control Systems
Electrical analogous element for damper element (force-voltage analogy) in mechanical translation system is

 capacitor
 resistor
 inductor
 any of the above

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