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Control Systems

Control Systems
Find the Laplace transform for sinωt?

 s/(s²+ω²)
 1/s²
 ω/(s²+ω²)
 1/s

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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

 0.49.
 0.16.
 0.25.
 0.35.

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

 Hydraulic motor
 All
 Electric motor
 Pneumatic motor

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Control Systems
Which system is also known as automatic control system?

 Closed loop control system
 Open loop control system
 Either 1 or 2
 Nether 1 nor 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 the gain k is increased to infinity, then damping ratio will tend to become

 0.707
 zero
 unity
 infinite

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Control Systems
If a body has identical properties all over, it is known as

 elastic.
 homogeneous.
 none of them.
 isotropic.

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