CONTROL SYSTEM SET 02

CONTROL SYSTEM SET 02

1. The initial response when tune output is not equal to input is called
(a) Transient response
(b) Error response
(c) Dynamic response
(d) Either of the above
 

Ans: a
 

2. A control system working under unknown random actions is called
(a) computer control system
(b) digital data system
(c) stochastic control system
(d) adaptive control system
 

Ans: c
 

3. An automatic toaster is a ______ loop control system.
(a) open
(b) closed
(c) partially closed
(d) any of the above
 

Ans: a
 

4. Any externally introduced signal affecting the controlled output is called a
(a) feedback
(b) stimulus
(c) signal
(d) gain control
 

Ans: b
 

5. A closed loop system is distinguished from open loop system by which of the following ?
(a) Servomechanism
(b) Feedback
(c) Output pattern
(d) Input pattern
 

Ans: b
 

6. ___ is a part of the human temperature control system.
(a) Digestive system
(b) Perspiration system
(c) Ear
(d) Leg movement
 

Ans: b
 

7. By which of the following the control action is determined when a man walks along a path ?
(a) Brain
(b) Hands
(c) Legs
(d) Eyes
 

Ans: d
 

8. ___ is a closed loop system.
(a) Auto-pilot for an aircraft
(6) direct current generator
(c) Car starter
(d) Electric switch
 

Ans: a
 

9. Which of the following devices are commonly used as error detectors in instruments ?
(a) Vernistats
(b) Microsyns
(c) Resolvers
(d) Any of the above
 

Ans: d
 

10. Which of the following should be done to make an unstable system stable ?
(a) The gain of the system should be decreased
(b) The gain of the system should be increased
(c) The number of poles to the loop transfer function should be increased
(d) The number of zeros to the loop transfer function should be increased
 

Ans: b