Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

The resolution of a wire wound potentiometer is about
A:
0.001%
B:
0.1%
C:
1%
D:
5%
Answer: B
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For a second order system with 0 < ΞΎ < 1, the angle which poles make with negative real axis is
A:
sin-1 ΞΎ
B:
cos-1 ΞΎ
C:
tan-1 ΞΎ
D:
cot-1 ΞΎ
Answer: B
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In the signal flow graph of the given figure, the number of forward paths is
A:
1
B:
2
C:
3
D:
4
Answer: B
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For an unstable system the gain margin is indicative of how much the gain should be decreased to make the system stable.
A:
True
B:
False
C:
D:
Answer: A
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The log magnitude for the system in the given figure is (where T = RC)
A:
20 log (1 + Ο‰T)
B:
-20 log (1 + Ο‰T)
C:
-10 log (1 + Ο‰2T2)
D:
-20 log (1 + Ο‰2T2)
Answer: C
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