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Control Systems

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

 0.
 50.
 20.
 infinity.

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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?

 3/5
 1/4
 1
 0

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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

 etu(t).
 et.
 e-tu(t).
 e-t.

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

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

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Control Systems
Force balancing equation of a mass element is (where, x = displacement)

 M dx/dt
 any of the above
 M *x
 M d2x/dt2

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Control Systems
Which one of the following is the response y(t) of a casual LTI system described by H(s) = (s+1)/(s²+2s+2) for a given input x(t) = e-t u(t)?

 e-t cost*u(t)
 e-t tant*u(t)
 e-t sint*u(t)
 e-t cott*u(t)

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