MET 402 Plant Maintenance Exam 2022

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MET 402: A 2-page Second Semester Exam for Plant Maintenance (MET402), University of Buea College of Technology, instructors Anita M & Mbitekamboh R. W, dated June 17th 2022, Academic Year 2021/2022, credit value 4, time allowed 2 hours. Section 1: the 8 pillars of Total Productive Maintenance; the importance of tribology in machine-element design; the four basic wear mechanisms (adhesive, abrasive, fatigue, corrosive); and a 10-row table requiring the property enhanced by each of 10 mineral oil additives (Boron, Calcium, Copper, Lead, Magnesium, Molybdenum, Phosphorus, Silicon, Sodium, Zinc). Section 2: definitions of reliability/maintainability/availability, a series-reliability calculation for 25 components and a required failure-rate calculation for a target system reliability, an MTBF/failure-rate/reliability-at-several-times calculation from a failure-time record; the definition and objectives of maintenance, in-house versus outsourced maintenance, merits/drawbacks of centralized maintenance, and five factors influencing maintenance organization.