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Control Systems

Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 2
 4
 1
 0

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Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is

 voltage.
 flux.
 capacitance.
 inductance.

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Control Systems
Find the relation of damped natural frequency (ωd)

 (ωn) √(1-4ζ²)
 (ωn) √(1-1/ζ²)
 (ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)

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Control Systems
For a unity feedback control system open loop transfer function then velocity error constant is

 0.
 10.
 infinity.
 50.

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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?

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

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Control Systems
The following transfer function represents a phase-lead compensator?

 (s+4)/(s+6)
 1/s
 (s+4)/(3s+6)
 (4s+2)/(6s+1)

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