# Electronics and Communication Engineering - Automatic Control Systems

### Exercise :: Automatic Control Systems - Section 10

1.

Assertion (A): If points at infinity are included, G(s) has same number of poles and zeros.

Reason (R): The function has a zero at s = - 2.

 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

Explanation:

No answer description available for this question. Let us discuss.

2.

If the characteristic equation is (λ + 1) (λ + 2) (λ + 3) = 0, the eigen values are

 A. -1, -2, -3 B. 1, 2, 3 C. 0, 1, 2 D. 0, 2, 3

Explanation:

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3.

Lag compensation permits a high gain at low frequencies.

 A. True B. False

Explanation:

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4.

If the poles lie in second quadrant, damping ratio is

 A. 1 B. less than 1 C. zero D. more than 1

Explanation:

No answer description available for this question. Let us discuss.

5.

Assertion (A): When performance specifications are given in term of transient response characteristics, root locus method is a suitable method.

Reason (R): When performance specifications in terms of state variables are given, modern control methods can be used.

 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