Maintenance Planning & Reliability Engineering Flashcards
7 cards from real AFE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Maintenance Planning & Reliability Engineering flashcards as text
A facilities engineer is reviewing the maintenance cost ratio (MCR). MCR is typically expressed as:
Answer: Annual maintenance cost as a percentage of estimated replacement asset value (ERAV)
MCR = (Annual Maintenance Cost / Estimated Replacement Asset Value) × 100%, providing a benchmark to compare maintenance spending to industry norms.
Which scheduling technique prioritizes work orders by assigning numerical scores based on safety impact, production criticality, and waiting time?
Answer: Work order criticality ranking
Work order criticality ranking uses a scoring algorithm that weights factors like safety risk, equipment criticality, and backlog age to sequence maintenance work optimally.
In predictive maintenance, infrared thermography is primarily used to identify:
Answer: Abnormal heat patterns indicating electrical or mechanical faults
Infrared thermography detects temperature anomalies in electrical panels, motors, steam traps, and insulation that indicate developing failures before they cause breakdowns.
A key performance indicator (KPI) showing the percentage of total maintenance hours spent on planned versus unplanned work is called:
Answer: Planned maintenance percentage (PMP)
Planned Maintenance Percentage (PMP) = (Planned maintenance hours / Total maintenance hours) × 100%, indicating how proactive versus reactive a maintenance program is.
Which approach to spare parts management minimizes carrying costs while ensuring critical parts are available when needed?
Answer: Applying criticality-based classification (e.g., ABC analysis) with reorder point triggers
ABC analysis classifies parts by criticality and usage frequency, setting appropriate stocking levels and reorder points to balance availability against carrying costs.
Total Productive Maintenance (TPM) is distinguished from traditional maintenance programs primarily by:
Answer: Involving equipment operators in routine care and minor maintenance tasks
TPM engages equipment operators in autonomous maintenance activities such as cleaning, inspection, and minor adjustments, extending technician capacity and improving equipment reliability.
When performing a root cause analysis (RCA) after an equipment failure, the '5 Whys' technique is used to:
Answer: Iteratively ask 'why' to trace a failure back to its underlying root cause
The 5 Whys technique drills down through successive layers of causation by repeatedly asking 'why' until the true root cause is identified rather than just addressing symptoms.