Title: Mid Term 9 Feb 2018
Course: WISE Grant MFGT 244 - Preventative Maintenance > Section: Week 5 Midterm Exam

Q: 1. What is Lock Out / Tag Out?

Q: 2. What is the most common unsafe act?

Q: 3. What does it mean when a bearing begins to oxidize?

Q: 4. What is the first thing that needs to be checked during the PM of a gearbox?

Q: 5. What usually occurs after a tension member breaks in a belt?

Q: 6. What is the most common problem with chain drives?

Q: 7. What is an indication that a coupling is beginning to wear out?

Q: 8. Define confined space.

Q: 9. What is needed to enter a confined space to perform work?

Q: 10. What should be maintained for every machine?

Q: 11. List three things that should be done before PM work is performed on a machine?

1.__________________________________________________________________

2. __________________________________________________________________

3. __________________________________________________________________

Q: 12. What is the name of the coolant used in the Shoreline Community College Machine Shop?

Q: 13. Where do you find the information for PPE to work with the coolant?

Q: 14. What instrument do you use to determine the coolant concentration?

Q: 15. What concentration of coolant is used in the Shoreline Machine Shop?

Q: 16. What is the name of the scale used to determine concentration?

Q: 17. If you vacuumed out 22 gallons of coolant mix from a machine that had a capacity of 45 gallons and found the concentration to be 21%; How much water would you add to bring the concentration down to 9%?

Q: 18. How is tramp oil classified for disposal?

Q: 19. How is used coolant processed?

Q: 20. You need to make 45 gallons of coolant with a 10 percent concentration. How much coolant concentrate do you need to use?

Q: 21. What machine is used to remove the tramp oil?

Q: 22. What machine is used to process dirty coolant?

Q: 23. What are the 3 by-products recovered from the processed coolant?

Q: 24. How do you calibrate a precision machinist’s level?

Q: 25. List the 4 steps needed to level an engine lathe.

1. ___________________________________________________________

2. ___________________________________________________________

3. ___________________________________________________________

4. ___________________________________________________________

Q: 26. What is the job of the lubrication technician?

Q: 27. What is VISCOSITY?

Q: 28. What is NLGI?

Q: 29. What is the SAYBOLT system?

Q: 30. What is Kinematic Viscosity?

Q: 31. What is the Film Thickness Ratio lambda?

Q: 32. What is Full Hydrodynamic Lubrication?

Q: 33. What is Boundary Layer Lubrication?

Q: 34. What is Lubricating Film Transition Boundary?

Q: 35. What is the relationship between Film Thickness Ratio, Lambda and Bearing Life?

Q: 36. What is Corrosive Wear?

Q: 37. What is Mechanical Wear by Adhesion?

Q: 38. What is Mechanical Wear by Abrasion?

Q: 39. What is Mechanical Wear by Fatigue

Q: 40. What is a good additive for Grease?

Q: 41. What lubricant would you use on sliding surfaces?

Q: 42. What lubricant would you use on gears?

Q: 43. What lubricant would you use on spindle bearings?

Q: 44. What oil would you use in an automobile?