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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

  1. What is the primary goal of Reliability-Centered Maintenance (RCM)?

    Answer: Preserve system function by selecting appropriate maintenance strategies

    RCM aims to preserve system function by identifying the most effective maintenance strategy for each failure mode rather than eliminating maintenance or reducing staff.

  2. Which maintenance strategy involves replacing components at fixed time intervals regardless of their condition?

    Answer: Preventive (time-based) maintenance

    Preventive (time-based) maintenance schedules replacement or servicing at fixed intervals regardless of the component's actual condition.

  3. Mean Time Between Failures (MTBF) is best described as:

    Answer: The average operating time between successive failures of a repairable system

    MTBF measures the average elapsed time between failures of a repairable system, serving as a key reliability metric.

  4. In a Failure Mode and Effects Analysis (FMEA), what is the Risk Priority Number (RPN) calculated from?

    Answer: Severity × Occurrence × Detection

    RPN = Severity × Occurrence × Detection; it prioritizes failure modes so maintenance resources are directed at the highest-risk items first.

  5. Which condition-monitoring technique uses sound waves to detect bearing defects and lubrication issues?

    Answer: Ultrasonic testing

    Ultrasonic testing detects high-frequency sound emissions from bearing defects, leaks, and lack of lubrication that are inaudible to the human ear.

  6. Overall Equipment Effectiveness (OEE) is calculated by multiplying which three factors?

    Answer: Availability × Performance × Quality

    OEE = Availability × Performance × Quality, providing a composite measure of how effectively manufacturing or facility equipment is being utilized.

  7. A P-F curve in predictive maintenance represents:

    Answer: The interval between a potential failure and a functional failure

    The P-F curve shows the interval between the point where a potential failure (P) can be detected and when functional failure (F) occurs, guiding inspection frequency.