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Control Systems

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

 0.
 40.
 20.
 infinity.

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Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 6
 2
 4
 8

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Control Systems
The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is

 5/s(s²+3s+2)
 5/(s²+3s+2)
 (s²+3s+2)/5
 s(s²+3s+2)/5

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Control Systems
The transfer functions of two compensators are given below. Which one is correct? which one is correct?

  Both C1 and C2 are lead compensator.
  C1 is a lead compensator and C2 i
  Both C1 and C2 are lag compensator.
  C1 is a lag compensator and C2 i

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Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 3
 2
 1
 5

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Control Systems
Given the transfer function of a system. Which of the following characteristics does it have?

 Over damped
 any of the above
 Critical damped
 Under damped

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