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Control Systems

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

 2
 1
 0
 3

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Control Systems
The characteristic equation has the following roots for over damped stable system?

 -2,2
 -2±j4
 -2,-2
 -2,-4

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Control Systems
The step response of the system described by the differential equation will be

 non of above.
 e-3t u(t).
 e6t.
 (1/6)*(1-e-6t).

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Control Systems
A box which tells the effect of inputs on control sub system is known as

 Decision box.
 Data Box.
 Logical box.
 State box.

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 10.
 1/11.
 ¾.
 Zero.

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 4
 0.5
 1
 2

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