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Control Systems
The unit step response of the system is 1 - e-t(1+t). Which is the system?
unstable
critically stable
stable
oscillatory
unstable
critically stable
stable
oscillatory
Answer
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Related Question
Control Systems
Lead compensator is used to improve ------------------
Both 1 and 2
Transient response
Steady state response
None of these
Both 1 and 2
Transient response
Steady state response
None of these
Answer
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Control Systems
The Laplace transform of a transportation lag of 5 seconds is
e-5s.
1/(s+5).
e5s.
1/(s-5).
e-5s.
1/(s+5).
e5s.
1/(s-5).
Answer
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Control Systems
In the integral control of the single area system frequency error is reduced to zero. Then
integrator o/p decreases but speed changer position moves up.
integrator o/p decreases and speed changer position comes down.
integrator o/p increases but speed changer position comes down.
integrator output and speed changer position attain a constant value.
integrator o/p decreases but speed changer position moves up.
integrator o/p decreases and speed changer position comes down.
integrator o/p increases but speed changer position comes down.
integrator output and speed changer position attain a constant value.
Answer
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Control Systems
When the polynomial is Routh Hurwitz,
none of these.
the function is not real.
the roots of function have real parts which are to be zero/negative.
all zeroes lie in the right half of the s-plane.
none of these.
the function is not real.
the roots of function have real parts which are to be zero/negative.
all zeroes lie in the right half of the s-plane.
Answer
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Control Systems
Find the relation of damped natural frequency (ωd)
(ωn) √(1-1/ζ²)
(ωn) √(1-ζ²)
(ωn) √(1-4ζ²)
(ωn) √(1-2ζ²)
(ωn) √(1-1/ζ²)
(ωn) √(1-ζ²)
(ωn) √(1-4ζ²)
(ωn) √(1-2ζ²)
Answer
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