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Electronics and Communication Engineering - Automatic Control Systems

Exercise : Automatic Control Systems - Section 5
26.
Consider the following statements relating to synchros
  1. Rotor of control transformer is either disc shaped or umbrella shaped
  2. Rotor of transmitter has low magnetic reluctance
  3. Transmitter and control transformer pair act as error detector
Out of above the correct statements are
1, 2, 3
1 and 2
2 and 3
1 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
For a second order system the damping factor is varied from 0 to 1. The locus of poles is
a straight line on imaginary axis
a straight line on real axis
a semi circle
a circle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.

Assertion (A): The function has a double pole at s = - 5.

Reason (R): If the function [G(s)] (s + p)n for n = 1, 2, 3 ... has a finite non-zero value at s = - p, then s = - p is called a pole of order n.

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.
29.
In a synchro transmitter, which coil acts as primary?
Rotor
Stator
Partly rotor and partly stator
Tertiary
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.

Assertion (A): The transient performance of a control system is generally analysed by using unit step function as reference input.

Reason (R): Impulse is the most common input found in practice.

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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