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Automatic Control Systems
For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.
False
True
False
True
Answer
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Related Question
Automatic Control Systems
For any transfer function, the constant phase angle loci are
Neither (a) nor (b)
A family of straight lines
A family of circles
Either (a) or (b)
Neither (a) nor (b)
A family of straight lines
A family of circles
Either (a) or (b)
Answer
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Automatic Control Systems
In force current analogue, mechanical mobility is analogous to
Impedance Z
Admittance Y
Conductance G
Reactance X
Impedance Z
Admittance Y
Conductance G
Reactance X
Answer
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Automatic Control Systems
The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions.
False
True
False
True
Answer
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Automatic Control Systems
M circles are symmetrical with respect to
M = 1 straight line and imaginary axis
M = 1 straight line
Real and imaginary axis
M = 1 straight line and real axis
M = 1 straight line and imaginary axis
M = 1 straight line
Real and imaginary axis
M = 1 straight line and real axis
Answer
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Automatic Control Systems
A lead compensator
Speeds up the transient response
Increases the stability margin and speeds up the transient-response.
None of these
Increases the stability margin
Speeds up the transient response
Increases the stability margin and speeds up the transient-response.
None of these
Increases the stability margin
Answer
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