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Electronics and Communication Engineering - Automatic Control Systems

Exercise : Automatic Control Systems - Section 4
31.

Assertion (A): If the Laplace transform is , the Laplaces transform of impulse response is given by

Reason (R): The Laplace transform for an impulse function is 1.

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:

Since £[δ(t)] = 1, .

32.
The polar plot of is the negative imaginary axis.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
In the given figure, P = Pm sin ωt. Then X(s) =
Answer: Option
Explanation:

If P = Pm, sin ω .

34.
The number of branches of root locus plot is equal to
the number of roots of characteristic equation
double the number of roots of characteristic equation
the number of roots of characteristic equation minus one
the number of roots of characteristic equation plus one
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The action of bellows is similar to that of
mass
viscous friction
spring
none of the above
Answer: Option
Explanation:

Spring and bellows convert force into displacement.

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