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Instrument Mechanic Practice Test: Control System
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Instrument Mechanic Practice Test: Control System
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25 Questions

1. ___________ has tendency to oscillate.
2. Automatic control system in which output is a variable is called
3. A good control system has all the following features except
4. Phase plane method is used for
5. An automatic toaster is a __________ loop control system.
6. Which of the following is a three mode control action?
7. A Controller ,essentially is a
8. In closed loop control system , with positive value of feedback gain the overall gain of the system will
9. Cascade control means
10. Integral control action output equal to output of proportional control action is
11. Transient response in the system is basically due to
12. On-Off control
13. It is the variable which is manipulated to make the controlled variable at set point value.
14. Automatic control system in which output is a variable is called
15. An extremely introduced signal affecting the controlled output is called a
16. A control system with excessive noise , is likely to suffer from
17. A control system in which the control action is somehow dependent on the output is known as
18. Effect of feedback on the plant is to
19. A controller action in which there is a continuous linear relation between the value of the controller variable and rate of change of controlled output signal is called
20. Which of the following controller has the least maximum deviation?
21. Which controller has the potential to eliminate/overcome the drawback of offset in proportional controllers?
22. How is an output represented in the control systems?
23. Reset control action in often expressed in unit of
24. Transfer function of a system can used to study its
25. The derivative control action is typically used when controlling , but rarely used when controlling.