Observer Systems MCQ’s

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This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Observer Systems”.

1. In closed loop control system, with positive value of feedback gain the overall gain of the system will
a) Decrease
b) Increase
c) Be unaffected
d) Exponentially increase

2. Which of the following is an open loop control system?
a) Field controlled D.C. motor
b) Ward Leonard control
c) Metadyne
d) Stroboscope

3. A control system in which the control action is somehow dependent on the output is known as
a) Closed loop system
b) Semi closed loop system
c) Open system
d) Non feedback control system

4. Which of the following statements is not necessarily correct for open control system?
a) Input command is the sole factor responsible for providing the control action
b) Presence of non-linearities causes malfunctioning
c) Less expensive
d) Generally free from problems of non-linearities

5. ___________has tendency to oscillate.
a) Open loop system
b) Closed loop system
c) Open and closed loop systems have tendency to oscillate
d) No Systems have tendency to oscillate

6. A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver?
a) Clutch
b) Eyes
c) Needle of the speedometer
d) Steering wheel

7. In open loop system
a) The control action depends on the size of the system
b) The control action depends on system variables
c) The control action depends on the input signal
d) The control action is independent of the output

8. A good control system has all the following features except
a) Good stability
b) Slow response
c) Good accuracy
d) Sufficient power handling capacity

9. The initial response when the output is not equal to input is called
a) Transient response
b) Error response
c) Dynamic response
d) All of the mentioned

10. 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

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