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Control Systems

Control Systems
The Laplace transform of a transportation lag of 5 seconds is

 e-5s.
 1/(s-5).
 e5s.
 1/(s+5).

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Control Systems
Force balancing equation of a mass element is (where, x = displacement)

 M *x
 any of the above
 M d2x/dt2
 M dx/dt

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Control Systems
What will be the type of the system, if the steady state performance of control system yields a non zero finite value of the velocity error constant?

 type - 2
 type - 0
 type - 3
 type - 1

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Control Systems
In signal flow graph input node is node having only------------

 outgoing branches.
None of these
 both 1 and 2.
 incoming branches.

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Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

  1.0 Volt.
 1.5 Volt.
 2.0 Volt.
  2.5 Volt.

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

 50.
 0.
 10.
 infinity.

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