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Control Systems

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

 All
 Hydraulic motor
 Pneumatic motor
 Electric motor

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Control Systems
In signal flow graph input node is node having only------------

None of these
 outgoing branches.
 both 1 and 2.
 incoming branches.

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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

 finite constant
 a value between -1 and +1
 zero
 infinite

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Control Systems
Advantages of open loop control system is/are

All of these
 simple and economical.
 reliable.
 accurate.

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Control Systems
A function of one or more variables which conveys information about the nature of physical phenomenon is called

 system.
 noise.
 interference.
 signal.

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Control Systems
A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency?

 29.74 ra/s
 30.63 rad/s
 31.41 rad/s
 32.16 rad/s

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