1. How much amount of energy is consumed in Electro chemical machining?
Correct : D. large
2. How are material removal rates of ECM, when compared to that of conventional methods?
Correct : A. slower
3. State whether the following statement is true or false regarding the limitations of ECM. “In ECM, cleaning and oiling of work piece need not be done after machining.”
Correct : B. false
4. Which of the following are the limitations of electro chemical machining?
Correct : D. all of the mentioned
5. State whether the following statement is true or false regarding the limitations of ECM. “In electrochemical machining, duplicating the tool is easier.”
Correct : B. false
6. Electro chemical machining process cannot produce which of the following mentioned below?
Correct : C. sharp edges
7. Pumping of electrolyte through the narrow gaps causes, which type of forces on tool and work piece?
Correct : A. large
8. In this type of machining, machining forces are controlled by which of the following fields?
Correct : A. magnetic field
9. Which of the following type of tools, are required for magnetic field assisted polishing?
Correct : C. magnetic tools
10. Which of the following is not a magnetic field assisted machining process?
Correct : A. electro-plating process
11. In the advanced machining processes, what is the full form of MAF?
Correct : B. magnetic abrasive finishing
12. In Magnetic abrasive finishing, which of the following particles do not contribute to the material removal?
Correct : C. non-magnetic particles
13. Which of the following motions are opted, in order to carry on with the Magnetic abrasive finishing?
Correct : D. all of the mentioned
14. Magnetic Abrasive finishing is used for which of the following application/s?
Correct : A. surface finishing
15. Which is the place, where Magnetic field assisted polishing was invented?
Correct : A. the united states of america
16. Which of the following processes cannot be machined using Magnetic abrasive finishing?
Correct : C. hole drilling
17. Which of the following components, come under machining system of Magnetic Abrasive finishing?
Correct : D. all of the mentioned
18. Which of the following materials can be machined using Magnetic Abrasive finishing?
Correct : D. all of the mentioned
19. State whether the following statement is true or false about Magnetic abrasive finishing. “Vibratory motion that is axial, is introduced in the magnetic field by the oscillation of magnetic poles.”
Correct : A. true
20. Which of the following material/s is/are used to hold the abrasives, in MAF?
Correct : B. ferro magnetic materials
21. What is the other name of ferromagnetic material used for holding the abrasives in MAF?
Correct : A. magnetic abrasive conglomerate
22. What are the sizes magnetic abrasive conglomerates required in the machining system of MAF?
Correct : C. 50 – 100 microns
23. What are the size ranges of the abrasives used in Magnetic abrasive finishing?
Correct : B. 1 to 10 microns
24. Which of the following are commonly used magnetic materials in finishing process?
Correct : D. all of the mentioned
25. Which of the following are commonly used abrasive materials in finishing process of MAF?
Correct : D. all of the mentioned
26. Which of the following materials combine to form the magnetic abrasive brush in MAF?
Correct : D. all of the mentioned
27. In order to achieve uniform circulation of abrasives, the magnetic abrasives are undergone through which of the following?
Correct : A. stirring
28. Magnetic lines of force flows on which part of the work piece material?
Correct : A. through the work piece
29. What is the limit of the roller speed used in MAF?
Correct : B. up to 1.3 m/s
30. In which direction, oscillatory motion of magnets are carried out?
Correct : A. axial to work piece
31. Which of the following surface defects are removed using Magnetic abrasive finishing?
Correct : D. all of the mentioned
32. What is the value of the limited depth to which form errors, tapers, looping can be corrected?
Correct : B. 20 microns
33. State whether the following statement is true or false about magnetic abrasive finishing. “Increasing the magnetic flux density raises the rate of material removal in finishing.”
Correct : A. true
34. Which of the following factors, does material removal rate depend on?
Correct : D. all of the mentioned
35. Which of the following factors does not affect the magnetic abrasive conglomerates in MAF?
Correct : C. work piece material
36. State whether the following statement is true or false about Magnetic abrasive finishing. “Higher rates of material removal are obtained, with an increase in amplitude and frequency.”
Correct : A. true
37. Which of the following applications where MAF is used?
Correct : D. all of the mentioned
38. Diamond abrasives used for finishing operation results in which type of surface defects?
Correct : D. all of the mentioned
39. Which of the following conditions is/are not suitable for finishing of ceramic balls?
Correct : B. large abrasive sizes
40. In MAF, ceramic balls and the bearing rollers are placed in between which components?
Correct : B. drive shaft and float
41. Polishing in Magnetic abrasive finishing is done, by which action of material removal?
Correct : A. mechanical abrasion
42. For obtaining a better finish using Magnetic abrasive finishing, tubes are rotated at which speeds?
Correct : D. very high
43. Which of the following is an advantage of MAF over Electrolytic finishing?
Correct : A. disposing of electrolyte
44. State whether the following statement is true or false about Magnetic abrasive finishing. “Mirror finishing, removed burrs with lowering the accuracy of the shape are achieved by MAF.”
Correct : B. false
45. What are the other applications where Magnetic abrasive finishing can be used?