CONTROL SYSTEMS QUIZ

For a unity feedback control system open loop transfer function then velocity error constant is

10.

infinity.

0.

50.

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The system having characteristic equation is used to be an oscillator. What is the value of k?

3

1

2

4

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Which of the following controller has sluggish response?

proportional controller

derivative controller

integral controller

both 2 and 3

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Number of sign changes in the entries in 1st column of Routh array denotes the no. of

open loop zeroes in RHP.

zeroes of system in RHP.

open loop poles in RHP.

roots of characteristic polynomial in RHP.

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The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

5.

1.

10.

2.

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The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If the gain k is increased to infinity, then damping ratio will tend to become

zero

0.707

infinite

unity

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Name test signals used in time response analysis?

Unit ramp.

Impulse.

Unit step.

All of B, C, D.

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The error of a system to a ramp input is 1/5, if the type of the system is decreased by one, then the error of unit step input is

0.167

6/5

5

0.2

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Electrical analogous quantity for dash-pot in force-current analogy is

conductance.

inductance.

capacitance.

resistance.

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Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

lag-lead

lead-lag

lead

lag

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