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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. Reset control action in often expressed in unit of
2. In P-I controller ,what does an integral of a function compute?
3. The output of a feedback control system must be a function of
4. A good control system has all the following features except
5. A conditionally stable system exhibits poor stability at
6. The __________ is function which describes the process and provides the information about other process parameters which influence the controlled variable.
7. A control system working under unknown random action is called
8. Bode stability method uses
9. Laplace transform method is used for
10. P-I controller as compared to P-controller has a
11. A car is moving at a constant speed of 50 km/hr, which of the following is the feedback element for the driver?
12. Process degrees of freedom
13. On-Off control
14. A control system in which the control action is somehow dependent on the output is known as
15. How is an output represented in the control systems?
16. The time difference by which the output oa a P-D controller leads the input changes linearly with time is called
17. In a control system the output of the controller is given to
18. An automatic toaster is a ___________ loop control system.
19. A control system with excessive noise , is likely to suffer from
20. With feedback __________ increases.
21. What is the full form of HART?
22. 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
23. Which of the following is also known as PID controller?
24. _____________ is a closed loop system.
25. In closed loop control system , with positive value of feedback gain the overall gain of the system will