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Electronics and Communication Engineering - Automatic Control Systems

Exercise : Automatic Control Systems - Section 9
6.
In a two phase servomotor the two stator windings have a phase difference of
30°
45°
90°
135°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The block diagram of the given figure for
On-off controller
On-off controller with differential gap
On-off controller with integral gap
Three position controller
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
In a two phasor servomotor, the direction of rotation of the rotating field depends on
magnitudes of voltages applied to the two stator windings
phase relation of voltages applied to the two stator windings
both magnitude and phase relationship of voltages applied to the two stator windings
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.

Assertion (A): Points in the s plane at which function G(s) is not analytic are called singular, points.

Reason (R): Singular points at which the function G(s) or its derivative approach infinity are called poles.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
R is correct but A is wrong
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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