Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

In using Nyquist stability criterion it is not necessary to determine closed loop poles.
A:
True
B:
False
C:
D:
Answer: A
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The radius of constant N circle for N = 1 is
A:
2
B:
2
C:
1
D:
Answer: D
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The number of stator field windings in an ac tachometer are
A:
1
B:
2
C:
3
D:
4
Answer: B
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For a factor the log
A:
is a straight line with slope 20 dB/decade
B:
is a straight line with slope 0 dB/decade
C:
is a straight line with slope - 20 dB/decade
D:
is a straight line with slope - 40 dB/decade
Answer: D
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The Nyquist plot in the given figure is for G(s) H(s) =
A:
B:
C:
D:
Answer: C
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