MSSC Maintenance Study Guide Exam with Answers, Exams of Mechanical Engineering

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MSSC Maintenance Study Guide Exam

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1. Every machine as potential hazards. When operating a lathe, you should be particularly aware of: - ✔✔. Wrap points
2. Most work-place hazards and safety systems are regulated and enforced by: - ✔✔. OSHA
3. The information provided in a technical manual generally includes all of the following except: - ✔✔. The cost of the equipment
4. To achieve the best fit possible between mating gears, you should: - ✔✔. Use a fine lapping compound to make them fit
5. Which of the following is an example of a flammable material?: - ✔✔. Gasoline
6. Part of a preventive maintenance program is keeping accurate records. A maintenance log contains: - ✔✔Results of tests, results of inspections, the maintenance schedule

7. During an alignment check between tow timing pulleys, have _________ to assure proper belt operation: - ✔✔. At least a three point contact.
8. The proper oil level in a submerged oil ball bearing system is submerging: - ✔✔ One half the bottom ball of the bearing
9. Before any tool or piece of equipment, you must receive training in its safe use. Tool and equipment training is provided by: - ✔✔ supervisor or experienced co-worker, the equipment manufacturer, an on-site or on-line training course
10. A standard operating procedure (SOP) provided a complete set of instructions to perform a certain task in a written description of the procedure. Documentation of the procedure is recorded as directed by the SOP: - ✔✔On a route sheet, in a log book, on a computer
11. The purpose of a power tool safety interlock is to: - ✔✔. Prevent operation of a tool unless certain conditions are met
12. Which safety color is commonly used to indicate hazardous equipment or part on a machine?: - ✔✔. Orange

13. Proper body mechanics are important. When pulling an object, all of the following guidelines should be observed EXCEPT: - ✔✔. Placing the work on your forearms.
14. Which of the following is true regarding double pitch chains?: - ✔✔. The side plates have been extended to twice the normal pitch.
15. Tap drill charts are based on ______ of threads?: - ✔✔. 75 Percent
16. Which of the following tools is NOT a measuring tool?: - ✔✔. Adjustable Wrench
17. What is/are the most common cause(s) of bearing failure?: - ✔✔. Both contamination and misalignment
18. A "Grade 5" bolt has _______ slashes on its head?: - ✔✔. Three
19. The pitch for a number 50 chain is: - ✔✔. 5/8 inches
20. Of the following measuring instruments, the one capable of making the most precise linear measurements is the: - ✔✔. Micrometer

21. Anyone in the plant should be able to find the right tool for the right job in: - ✔✔. 30 seconds
22. The process of tool calibration against a standard is generally required for: - ✔✔. Any type of test equipment.
23. Closeout of a Preventative Maintenance (PM) work order indicates that: - ✔✔. The maintenance was completed.
24. Many machines have warning systems to alert workers to danger. A trip device is a system that: - ✔✔. Shuts off the machine when it detects a potential contact hazard.
25. The absolute rating of a filter element refers to that element's ______ hole size. - ✔✔. Largest
26. The purpose of a machine guard is to: - ✔✔. Protect workers from moving parts or other hazards.
27. Fuses and circuit breakers shut off electrical power to a tool when the current load exceeds that maximum for that circuit. When this happens, the first thing workers should do is: - ✔✔. Identify and correct the reason for the overload.

28. When lubricating a bearing, you should avoid: - ✔✔. Getting dirt in a bearing.
29. A maintenance program which focuses on cooperation between operators and maintenance specialists, is known as: - ✔✔. Total Productive Maintenance (TPM)
30. If only one shaft can be turned when checking for out of round: - ✔✔. Mount the indicator first on the one that cannot be turned
31. The meter shown is connected in the circuit so that it measures: - ✔✔. In parallel with a live circuit
32. Which of the below is most likely to result in a shock from an electrical device?: - ✔✔. Improper grounding of the circuit
33. The most obvious indicator that a v-belt pulley is worn beyond usefulness is when: - ✔✔. A new belt touches the bottom of the groove
34. The first step to ensure proper alignment of motors with mating equipment is to: - ✔✔. Check shaft run out

35. Regular, recurring, trouble on the same repair order should result in: - ✔✔. A thorough check for a history of similar problems
36. A dial indicator should ______ during adjustment of the motor position: - ✔✔. Be removed
37. The below is an example of ________ control logic: - ✔✔. Or
38. The part of an electrical circuit that gives the operator control is the: - ✔✔. Input device
39. The primary cause of pump cavitation is: - ✔✔. Suction line pressure is too low
40. When converting gauge pressure to absolute pressure, you must:
    • ✔✔. Add atmospheric pressure to gauge pressure
41. Daily maintenance involves keeping daily records because: - ✔✔. Recurring events can be analyzed to troubleshoot problems
42. Which of the below is a goal of Total Productive Maintenance (TPM): - ✔✔. Zero breakdowns and defects

43. A chain should be replaced when its length becomes _________ longer than the original length?: - ✔✔. 3%
44. A maintenance technician must _______ prior to shutting down a machine for preventive maintenance: - ✔✔. Arrange for ready access of routine tools and supplies
45. Making sure that a motor shaft is level on the mounting surface: - ✔✔. Reduces the number of needed shims
46. _____________ Is the most common maintenance problem with vibration on air fans: - ✔✔. Sediment/product buildup
47. In the below drawing, pulley "A" is rotating: - ✔✔. CW at 25 rpm
48. Based on the sling configurations in the table below, what loads can be safely lifted using a 1,500 lb wire rope?: - ✔✔D. A,B,C, & D
49. The _____________ test will show cracks in the surface of ferrous metal: - ✔✔. Magnaflux