CONTROL SYSTEM SET 06

CONTROL SYSTEM SET 06

1. The transient response of a system is mainly due to
(a) Inertia forces
(b) internal forces
(c) stored energy
(d) friction
 

Ans: c
 

2. ___ Signal will become zero when the feedback signal and reference signs are equal.
(a) Input
(b) Actuating
(c) Feedback
(d) Reference
 

Ans: b
 

3. A signal other than the reference input that tends to affect the value of controlled variable is known as
(a) Disturbance
(b) command
(c) control element
(d) reference input
 

Ans: a
 

4. The transfer function is applicable to which of the following?
(a) Linear and time-in variant systems
(b) Linear and time-variant systems
(c) Linear systems
(d) Non-linear systems
(e) None of the above
 

Ans: a
 

5. From which of the following transfer function can be obtained?
(a) Signal flow graph
(b) Analogous table
(c) Output-input ratio
(d) Standard block system
(e) None of the above
 

Ans: a
 

6. ___ is the reference input minus the primary feedback.
(a) Manipulated variable
(b) Zero sequence
(c) Actuating signal
(d) Primary feedback
 

Ans: c
 

7. The term backlash is associated with
(a) Servomotors
(b) induction relays
(c) gear trains
(d) any of the above
 

Ans: a
 

8. With feedback _____ increases.
(a) System stability
(b) sensitivity
(c) gain
(d) effects of disturbing signals
 

Ans: a
 

9. By which of the following the system response can be tested better?
(a)     Ramp input signal
(b)     Sinusoidal input signal
(c)    Unit impulse input signal
(d)    Exponentially decaying signal
 

Ans: c
 

10. In a system zero initial condition means that
(a) The system is at rest and no energy is stored in any of its components
(b)  The system is working with zero stored energy
(c) The system is working with zero reference signal
 

Ans: a