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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
0.263
0.707
0.953
0.386
0.263
0.707
0.953
0.386
Answer
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Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is
0
1
2
3
0
1
2
3
Answer
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Control Systems
The unit step response of the system is 1 - e-t(1+t). Which is the system?
unstable
stable
oscillatory
critically stable
unstable
stable
oscillatory
critically stable
Answer
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Control Systems
A controller transfer function is given by . What is its nature and parameter?
lag compensator, β = 10
lead compensator, α = 0.1
lead compensator, α = 0.2
lag compensator, β = 2
lag compensator, β = 10
lead compensator, α = 0.1
lead compensator, α = 0.2
lag compensator, β = 2
Answer
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Control Systems
The value of 'a' in to give phase margin = 45o will be
1.18.
0.707.
1.414.
0.9.
1.18.
0.707.
1.414.
0.9.
Answer
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Control Systems
The phase of lead compensator of the system G ( s ) = ( s + a ) / ( s + b ) is at its maximum at:
ab.
√( a / b).
a / b.
√( ab ).
ab.
√( a / b).
a / b.
√( ab ).
Answer
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