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Control Systems

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

 0.
 1.
 infinity.
 1/6.

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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?

 3
 2
 1
 0

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Control Systems
Time constant is defined as the time taken by the response of the system to reach ----------- ?

 50% of the final value
 63% of the final value
 100% of the final value
 70.7% of the final value

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

 e-3t u(t).
 1/3.
 (1/3) × (1-e-3t).
 e6t.

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