Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

If error voltage is e(t), integral square error =
A:
e2(t) dt
B:
C:
D:
none of the above
Answer: B

Error is squared and integrated.

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The compensator of the given figure is a
A:
lag compensator
B:
lead compensator
C:
lag-lead compensator
D:
none of the above
Answer: B

Obtain transfer function.

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The log magnitude curve for a constant gain K is a
A:
horizontal straight line
B:
horizontal straight line of magnitude 20 log K decibels
C:
an inclined line having slope K
D:
an inclined line having slope -K
Answer: B

The factor K in the numerator of G(jω) gives is straight line at 20 log10 K in Bode plot.

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For the transport lag G(jω) = e-jωT, the magnitude is always equal to
A:
0
B:
1
C:
10
D:
0.5
Answer: B

Magnitude is 1.

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The phase margin and damping ratio have no relation.
A:
True
B:
False
C:
D:
Answer: B

They are related.

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