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Control Systems

Control Systems
Find the Laplace transform for sinωt?

 1/s
 s/(s²+ω²)
 ω/(s²+ω²)
 1/s²

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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 10.
 2.
 5.
 1.

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Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 1
 5
 2
 3

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Control Systems
The unit step error coefficient of a system with unity feedback is

 1/6.
 infinity.
 0.
 1.

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Control Systems
The value of 'a' in to give phase margin = 45o will be

 1.18.
 1.414.
 0.9.
 0.707.

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Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

 1.5 Volt.
  1.0 Volt.
 2.0 Volt.
  2.5 Volt.

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