Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

If the breakaway and break in points in the root locus are located at
A:
-2 and -1
B:
-2.47 and -3.77
C:
-4.27 and -7.73
D:
none of the above
Answer: C
No answer description is available. Let's discuss.
An ac tachometer has a drag cup construction so that
A:
rotor inertia is low
B:
rotor body is conducting
C:
rotor is easy to fabricate
D:
both (a) and (b)
Answer: D
No answer description is available. Let's discuss.

Assertion (A): If integral control action is included in the controller the offset can be eliminated.

Reason (R): Integral control action may lead to oscillatory response.

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
No answer description is available. Let's discuss.
Integral error compensation changes a second order system to
A:
first order system
B:
third order system
C:
fourth order system
D:
either (a) or (b) depending on the system
Answer: B
No answer description is available. Let's discuss.
For the given figure, the transfer function of signal flow graph is
A:
B:
C:
D:
Answer: A
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