CONTROL SYSTEM SET 07

CONTROL SYSTEM SET 07

1. In a system low friction co-efficient facilitates
(a) Reduced velocity lag error
(b) increased velocity lag error
(c) increased speed of response
(d) reduced time constant of the system
 

Ans: a
 

2. Hydraulic torque transmission system is analog of
(a) amplidyne set
(b) resistance-capacitance parallel circuit
(c) motor-generator set
(d) any of the above
 

Ans: c
 

3. Spring constant in force-voltage analogy is analogous to
(a) Capacitance
(b) reciprocal of capacitance
(c) current
(d) resistance
 

Ans: b
 

4. The frequency and time domain are related through which of the following?
(a) Laplace Transform and Fourier Integral
(b) Laplace Transform
(c) Fourier Integral
(d) Either (b) or (c)
 

Ans: a
 

5. An increase in gain, in most systems, leads to
(a) Smaller damping ratio
(b) larger damping ratio
(c) constant damping ratio
(d) none of the above
 

Ans: a
 

6. Static error co-efficient are used as a measure of the effectiveness of closed loop systems for specified     ________ input signal.
(a) Acceleration
(b) velocity
(c) position
(d) all of the above
 

Ans: d
 

7. A conditionally stable system exhibits poor stability at
(a)    low frequencies
(b)     reduced values of open loop gain
(c)    increased values of open loop gain
(d)    none of the above
 

Ans: b
 

8. The type 0 system has ______ at the origin.
(a) no pole
(b) net pole
(c) simple pole
(d) two poles
(e) none of the above
 

Ans: a
 

9. The type 1 system has ______ at the origin.
(a) no pole
(b) net pole
(c) simple pole
(d) two poles
 

Ans: c
 

10. The type 2 system has  __ at the origin.
(a) No net pole
(b) net pole
(c) simple pole
(d) two poles
 

Ans: d