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Control Systems

Control Systems
The steady state error due to ramp input for a type two system is equal to

 infinite.
 non zero number.
 constant.
 zero.

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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?

 1/4
 3/5
 0
 1

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Control Systems
When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is

 0.693.
 0.500.
 1.386.
 2.000.

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Control Systems
Angle condition for complimentary root locus or inverse root locus is

 ± (2q) 180°
 ± (2q + 1) 360°
 ± (2q + 1) 180°
 ± (2q) 360°

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

 0.
 1.
 1/6.
 infinity.

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

 Capacitance.
 Inductance.
 Resistance.
All of these

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