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Control Systems

Control Systems
what is the Laplace transform of a function δ(t-2)?

 2
 e-2s
 0
 2s

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 +10dB/decade.
 -10dB/decade.
 0 dB/decade
 -20dB/decade.

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

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

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Control Systems
Negative feedback in a closed loop control system

 reduces sensitivity to parameter variation.
All of these
 improves disturbance rejection.
 reduces gain.

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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

 Zero.
 ¾.
 10.
 1/11.

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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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