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Process Instrumentation and Control - Interview Questions and Answers

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21. The ratio of output signal or response of the instrument'" to a change in input or measured variable is called :
A. sensitivity
B. precision
C. resolution
D. threshold
E. accuracy.
Explanation:
22. The smallest change in measured value to which the instrument will respond is called
A. accuracy
B. precision
C. amplification
D. resolution
E. sensitivity.
Explanation:
23. Which of the following is used to count the number of brass items passing on a conveyor line, when no contact is permitted with the object:
A. event counter
B. mechanical counter
C. magnetic pick up
D. photoelectric cell
E. electronic counter.
Explanation:
24. For studying detailed variations with time, one uses :
A. indicator
B. digital indicator
C. recorder
D. integrator
E. analog indicator.
Explanation:
25. It responds directly to the measured quantity, producing a related motion or signal :
A. sensing element
B. transducer
C. transmitter
D. indicator
E. measuring device.
Explanation:
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