CONTROL SYSTEM SET 12

CONTROL SYSTEM SET 12

1. Transient response in the system is basically due to
a) Forces
b) Friction
c) Stored energy
d) Coupling
 
Ans: (c)
 
2. Effect of feedback on the plant is to
a) Control system transient response
b) Reduce the sensitivity to plant parameter variations
c) Both (a) and (b)
d) None of these
 
Ans: (c)
 
3. Transfer function of a system is defined as the ratio of output to input in
a) Z-transformer
b) Fourier transform
c) Laplace transform
d) All of these
 
Ans: (c)
 
4. In an open loop system
a) Output control the input signal
b) Output has no control over input signal
c) Some other variable control the input signal
d) Neither output nor any other variable has any effect on input
 
Ans: (d)
 
5. Transfer function of a system can used to study its
a) Steady state behavior
b) Transient behavior
c) Both (a) and (b)
d) None of these
 
Ans: (c)
 
6. Electrical resistance is analogous to
a) Intertia
b) Dampers
c) Spring
d) Fluid capacity
 
Ans: (b)
 
7. Automatic control system in which output is a variable is called
a) Closed loop system
b) Servomechanism
c) Automatic regulating system
d) Process control system
 
Ans: (d)
 
8. Output of the feedback control system should be a function of
a) Input
b) Reference and output
c) Feedback signal
d) None of these
 
Ans: (b)
 
9. Steady state error is always zero in response to the displacement input for
a) Type 0 system
b) Type 1 system
c) Type 2 system
d) Type (N > 1) system for N= 0, 1, 2….N
 
Ans: (d)
 
10. Relation between Fourier integral and Laplace transformer is through
a) Time domain
b) Frequency domain
c) Both (a) and (b)
d) None of these
 
Ans: (c)