Top CNC maintenance interview questions | CNC Mechanical maintenance interview questions.

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In this video, few most important CNC maintenance interview questions are discussed.

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Following are the most important questions, for mechanical maintenance. Which are always asked in CNC, VMC, and HMC maintenance interviews.
1. What is CNC?
2. What do you know about CNC?
3. What is the make of CNC you have been worked?
4. What was the capacity of CNC?
5. What is Tool magazine?
6. Which motor used in CNC?
7. What is ATC? Full form?
8. What is spindle orientation?
9. What is backlash?
10. What is grid shift?
11. How spindle orientation done?
12. Which controller used in your CNC?
13. Is air used in CNC machines?
14. Where the air is used in CNC?
15. Is a hydraulic system used in CNC?
16. Where hydraulic used in CNC?
17. What is the normal pressure range of hydraulic in CNC?
18. How many axes are there in CNC, VMC, and HMC?
19. What is the axis name of the table?
20. What is ATC finger?
21. How tool holds in ATC? How is Mechanism?
22. What is VMC?
23. What is HMC?
24. What type of maintenance you follow on CNC?
25. What is preventive maintenance?
26. What you do in preventive maintenance?
27. Is lubrication important for machines?
28. Which lubrication used in CNC?
29. What is a chiller where a chiller is used?
30. Which bearing used in the CNC spindle? Why?
31. What components are used for axis movements?
32. What is coupling?
33. What is a SERVO motor?
34. Where gearbox is used in CNC?
35. What are the minimum and maximum RPM?
36. What is a feed?
37. Which feed rate is good for the machine? Why?
38. What is an LM guide?
39. What is LM bearing?
40. What is run out?
41. What is geometry checking?
42. What is alignment?
43. What is a Chip conveyor? Which conveyor used in CNC?
44. What run-out parameters you maintain?
45. Where ball nut use?
46. Where ball screw used?
47. How to reference CNC?
48. How is the tool clamping mechanism in the CNC spindle?
49. What is the ladder?
50. How to read ladder?
51. What you know about CNC parameters?
52. How much air pressure required for CNC?
53. Why air used in CNC spindle?
54. What is spindle oil? Which grade oil used for it? Why it is used?
55. Tell some important checkpoints of PM.
56. What is APC?
57. General information of commands, like tool change, Tool calling, APC change, Homing, axis movement, spindle start, stop, spindle speed change, etc.

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