# Electronics and Communication Engineering - Automatic Control Systems

### Exercise :: Automatic Control Systems - Section 7

1.

Consider the following systems
System I, System II, where C(s) is the output and R(s) is the input of these systems

 A. System I has larger bandwidth and faster speed of response than System II B. System II has larger bandwidth and faster speed of response than System I C. System I has larger bandwidth but System II has faster speed of response D. System II has larger bandwidth but System I has faster speed of response

Explanation:

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

2.

Nyquist stability criterion is based on a theorem from the theory of complex variables.

 A. True B. False

Explanation:

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

3.

For the function G(s) H(s) = the phase cross-over frequency is

Explanation:

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

4.

While forming Routh's array, the situation of a row of zeros indicates that the system

 A. has symmetrically located roots B. is not sensitive to variations in gain C. is stable D. is unstable

Explanation:

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

5.

Assertion (A): In liquid system the ratio of change in liquid level to change in flow rate is called resistance of liquid flow.

Reason (R): In liquid level systems the ratio of change in liquid stored in a tank to the change in head is called capacitance of tank.

 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