Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

In Bode analysis the correction at corner frequency is 3 dB.
A:
True
B:
False
C:
D:
Answer: A
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In some on-off controllers a differential gap is provided
A:
to make the manufacture process easier
B:
to prevent too often frequent operation of controller
C:
both (a) and (b)
D:
neither (a) nor (b)
Answer: B
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The polar plot in the given figure is for G(jω) =
A:
B:
C:
D:
Answer: C
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Assertion (A): Integral control action is sometimes called reset control.

Reason (R): Reset rate is expressed as number of repeats per unit time.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is correct but R is wrong
D:
R is correct but A is wrong
Answer: B
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Friction forces acts in a direction
A:
opposite to that of velocity
B:
same as that of velocity
C:
at right angle to that of velocity
D:
partly opposite and partly at right angle to the direction of velocity
Answer: A
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