Control System Objective Questions

1. In a feedback amplifier, the bandwidth:

a) decreases by the same amount as the gain decreases
b) increases by the same amount as the gain decreases
c) decreases by the same amount as the gain decreases
d) remains uneffected

B

2. The characteristic equation of the second order of the system is given by s²+2δω²_os+ω²_o=0. The term ω_o is called:

a) over damped natural frequency
b) under damped natural frequency
c) un damped natural frequency
d) none of the above

B

3. In the above system the term 'δ' is called:

a) pole factor
b) stability factor
c) damping factor
d) frequency factor

C

4. In the above system, if 'δ'=1 the poles of the transfer function will be:

a) real and equal
b) imaginary and equal
c) complex conjugate
d) none of the above

A

5. In the system, if 'δ'=1the system is:

a) underdamped
b) absolutely damped
c) critical damped
d) over damped

C

6. In the above system, if 'δ'=1

a) the system exhibits large under shoot
b) the system exhibits large over shoot
c) the system exhibits small over shoot
d) the system will not exhibit any overshoot

D

7. In the above system if 'δ'>1 the poles are:

a)  real and equal
b) complex conjugate
c) imaginary and real
d) none of the above

C

8. In the above system, if 'δ'>1 the system exhibits:

a) large overshoot
b) medium overshoot
c) small overshoot
d) none of the above

A

9. In the above system if 'δ'<1 the poles are:

a) real and equal
b) real and unequal
c) imaginary and equal
d) complex conjugate

D

10. In the above system if 'δ'<1 the system exhibits:

a) damping response
b) oscillatory response
c) an overshoot
d) All the above

D