MSSC-Maintenance Review Questions and Correct Answers

MSSC-Maintenance Review Questions and Correct Answers How do you determine the grade of a bolt? You want to see radial slashes on the head of the bolt. Grade 7 you see 5 radial slashes. Look at the head of the bolt; Count the number of Radial slashes and add 2 to determine the grade of the bolt. TPM Total Productive Maintenance Goal of TPM Zero Breakdowns Why do you want a clean environment when lubricating a bearing? You want to make sure no dirt gets in the bearing. Dirt in the bearing can cause pitting of the balls; increase friction which can cause extra heat and cause bearings to "freeze up" or stop rolling. Why is keeping records of daily maintenance important? If there is an issue, the records can be analyzed for any recurring events. What is considered a planned maintenance activity? Machine lubrication When you are performing PM (Preventative Maintenance) on a piece of equipment, what should you have done before the Lockout tag out procedure? Make sure you have all of the supplies and equipment that you need set out and ready to be used. PM is the abbreviation for Preventative Maintenance You are performing PM on a piece of equipment. You need to use a circuit tester to check for what type of electricity? AC or DC You have been working on a piece of equipment all day and your shift is ending. What do you need to do to make sure no one uses the machine? Verify the energy stat and then change locks with the second shift maintenance technician. You are ready to close out a PM order. What do you need to verify? That the Preventative Maintenance (PM) was completed. You have finished performing a PM on a drill press and notice that the the base has a slight crack in it. You need to order a new base and replace it. This follow up work is categorized as what type of maintenance? Corrective Maintenance What is Corrective Maintenance? Corrective maintenance is implemented right after a defect has been detected on a piece of equipment or a production line: its objective is to make the piece of equipment work normally again, so that it can perform its assigned function. Corrective maintenance can either be planned or unplanned depending on whether or not a maintenance plan has been created.