Asset Management & Reliability Flashcards
7 cards from real MMC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Asset Management & Reliability flashcards as text
In an FMEA, the Risk Priority Number (RPN) is calculated as:
Answer: Severity × Occurrence × Detection
RPN = Severity × Occurrence × Detection, providing a single numeric score to prioritize failure modes for corrective action.
Which spare parts classification strategy designates parts that, if unavailable, would cause a production shutdown lasting more than 24 hours as the highest priority?
Answer: Critical, Essential, Desirable (CED) classification
CED (Critical, Essential, Desirable) classification ranks spare parts by the operational impact of their unavailability, placing production-stopping items in the Critical category.
A facility uses oil analysis on a gearbox and finds a sudden increase in iron and silicon particles. What is the most likely conclusion?
Answer: Gear tooth wear accelerated by contamination ingress
High iron particles indicate gear or bearing wear, and elevated silicon typically signals dirt ingress through a compromised seal, together pointing to accelerated wear from contamination.
The concept of 'hidden failure' in RCM refers to a failure that:
Answer: Is not evident to the operating crew under normal circumstances
A hidden failure is one that cannot be detected by the operating crew during normal operation, typically associated with protective devices like alarms or safety valves.
Under ISO 14224, what is the primary purpose of collecting failure data in a standardized format?
Answer: Enable benchmarking and reliability analysis across industries
ISO 14224 standardizes failure data collection to allow meaningful benchmarking, reliability modeling, and analysis across different organizations and industries.
Which maintenance strategy is MOST appropriate for a non-critical component with a random failure pattern and cheap replacement cost?
Answer: Run-to-failure (corrective maintenance)
When a failure has no safety consequences, is random in nature, and replacement is inexpensive, run-to-failure is often the most cost-effective strategy.
What is 'inherent reliability' of an asset?
Answer: The reliability built in through design and manufacturing before maintenance is applied
Inherent reliability is the level of reliability built into an asset through its design and manufacturing quality, representing the best performance achievable without design changes.