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Quiz 5
Solution
Q.1.
A lead compensator
Speeds up the transient response
Increases the stability margin
Increases the stability margin and speeds up the transient-response.
None of the above
Q.2.
Lag compensation permits a high gain at low frequencies.
True
False
Q.3.
The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions.
True
False
Q.4.
Which of the following features is not associated with Nichols chart?
(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)
It is symmetric about -180°
M loci are centred about (0 dB, -180°) point
The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system
Q.5.
A lag compensator
Speeds up the transient response of the system
Improves steady state behavior of the system
Improves steady state behavior and speeds up the transient response of the system
Improves steady state behavior and preserves the transient response of the system
Q.6.
In root locus analysis the breakaway and break in points
lie on the real axis
Either lie on the real axis or occur in complex conjugate pairs
Always occur in complex conjugate pairs
None of the above
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