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Metrology: Design of Gauges
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Metrology: Design of Gauges
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25 Questions

1. What are the functional dimensions?
2. Which of the following is not correct for pneumatic comparator?
3. Which of the following is incorrect about tolerances?
4. What is the importance of the valley in any irregular surface?
5. What is the relation between overall magnification and pneumatic sensitivity in pneumatic comparators?
6. What is bilateral tolerance?
7. Which of the following is true for measurement of surface roughness?
8. Which principle is related to Gauge design?
9. If the angle at which bands are viewed is 30o in flatness testing with interferometry, what is the possible error?
10. What is meant by roughness?
11. What is the relation between rate of wear and contact surface area?
12. Which of the following is necessary for the complete study of surface roughness?
13. What is the limitation of microscopic inspection to check surface finish?
14. Which of the following option is true for given statements about surface texture?Statement 1: Concept of surface roughness is sensory.Statement 2: Failure due to fatigue starts always at sharp corners.
15. Which of the following option is true for given statements about method of measurement of surface finish?Statement 1: Minute flaws can be easily detected by touch inspection.Statement 2: Direct instrument measurement is enabled to determine a numerical value of surface finish.
16. Why tolerances are given to the parts?
17. Surfaces produced by straight and cylindrical grinding tools tend to create which type of roughness?
18. How much a stylus instrument can be magnified to plot or find minute irregularities?
19. What is mean clearance?
20. Upto which limits irregularities can be detected with touch inspection of a surface?
21. What is the range of the diameter of optical flats?
22. Which of the following is incorrect for the gauging faces of snap gauges?
23. Which of the following can’t be done by ‘Go’ plug gauges?
24. What is the principle of ‘The Johansson Mikrokator’?
25. Which of the following is the best for the examination of surface finish?