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Control Systems

Control Systems
For a unity feedback control system open loop transfer function then position error constant is

 40.
 0.
 20.
 infinity.

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Control Systems
The characteristic equation of a control system is given below: The system is

 unstable
 marginally stable
 stable
 critical stable

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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?

 0
 3
 1
 2

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Control Systems
The transfer function of a linear time invariant system is given as G(s) = 10/(s² + 10s + 10). The steady state value of the output of the system for step input applied at time instant t=2 sec will be

 undefined
 infinity
 1
 0

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Control Systems
In which of the following controller band width is increased?

 proportional plus derivative controller
 both 1 and 2
 proportional plus integral controller
 nether 1 nor 2

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Control Systems
Accurate and reliable output is possible with which of the following system?

 Open loop control system
None of these
 Both 1 and 2
 Closed loop control system

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