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Control Systems

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

 Pneumatic motor
 Hydraulic motor
 All
 Electric motor

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Control Systems
If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique?

 A/B
 A*B
 A-B
 A+B

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Control Systems
Transient state analysis deals with -------------

None of these
 magnitude of error
 nature of response
 both 1 and 2

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

 zero
 0.707
 unity
 infinite

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Control Systems
The compensator would provide a maximum phase shift of

 20o.
 60o.
 45o.
 30o.

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Control Systems
What is the open loop DC gain of a unity feedback control system having closed loop transfer function as

 4/13
 9/4
 13/4
 4/9

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