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Control Systems

Control Systems
For the polynomial , number of roots which lie in the right half of s-plane is

 4
 1
 2
 3

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Control Systems
Accurate and reliable output is possible with which of the following system?

 Open loop control system
 Closed loop control system
None of these
 Both 1 and 2

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Control Systems
Find the type of the system given by

 3.
 1.
 4.
 2.

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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is

 0.707
 0.263
 0.953
 0.386

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

 infinity.
 1/6.
 1.
 0.

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Control Systems
The input-output relationship of a linear time invariant continuous time system is given by r(t) = d²c(t)/dt² + 3 dc(t)/dt + 2 c(t) Where r(t) and c(t) are input and output respectively. What is the transfer function of the system equal to?

 2/(s² + s + 2)
 2/(s² + 3s + 2)
 1/(s² + 3s + 2)
 1/(s² + s + 2)

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