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Control Systems

Control Systems
What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback

 2
 1
 0
 3

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Control Systems
Which of the following is the electrical analogous element for displacement in force-voltage analogy?

 Voltage.
 Charge.
 Flux.
 Current.

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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...........?

 5
 3
 1
 2

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Control Systems
A function y (t) satisfies the following differential equation : Where, δ (t) is the delta function. Assuming zero initial condition and denoting the unit step function by u(t), y(t) can be formed as

 et.
 e-t.
 e-tu(t).
 etu(t).

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Control Systems
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value?

 1
 3/5
 0
 1/4

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Control Systems
The output of the system has an effect upon the input quantity, then the system is a

 either 1 or 2.
 closed loop control system.
 open loop control system.
None of these

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