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Control Systems
A function of one or more variables which conveys information about the nature of physical phenomenon is called
signal.
system.
interference.
noise.
signal.
system.
interference.
noise.
Answer
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Control Systems
Two identical first order systems have been cascaded non interactively. The unit step response of the systems will be
Over damped
under damped
critical damped
un damped
Over damped
under damped
critical damped
un damped
Answer
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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is
0.386
0.707
0.263
0.953
0.386
0.707
0.263
0.953
Answer
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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
Under damped
Critical damped
Over damped
any of the above
Under damped
Critical damped
Answer
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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?
2.
3.
1.
0.
2.
3.
1.
0.
Answer
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Control Systems
The Laplace transform of a transportation lag of 5 seconds is
e-5s.
1/(s-5).
1/(s+5).
e5s.
e-5s.
1/(s-5).
1/(s+5).
e5s.
Answer
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