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Reliability Engineering Flashcards

6 cards from real CMRP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Reliability Engineering flashcards as text

  1. What is MTBF in reliability engineering?

    Answer: Mean Time Between Failures — the average time a repairable system operates between failures

    MTBF is a key reliability metric that measures the average operating time between failures for repairable systems, indicating expected system reliability.

  2. What is Root Cause Analysis (RCA)?

    Answer: A systematic approach to identifying the fundamental cause of a failure or problem

    RCA goes beyond symptoms to identify why a failure occurred, enabling solutions that prevent recurrence rather than just fixing the immediate problem.

  3. What is the difference between preventive and predictive maintenance?

    Answer: Preventive is time-based; predictive uses condition monitoring data to determine when maintenance is needed

    Preventive maintenance follows a schedule regardless of condition, while predictive maintenance uses actual equipment condition data to determine the optimal maintenance time.

  4. What is the 'bathtub curve' in reliability?

    Answer: A failure rate curve showing high early failures, low constant-rate failures, then increasing wear-out failures

    The bathtub curve illustrates three phases of equipment life: infant mortality (early failures), useful life (random, low failure rate), and wear-out (increasing failures).

  5. What is Overall Equipment Effectiveness (OEE)?

    Answer: A metric combining availability, performance, and quality to measure manufacturing productivity

    OEE = Availability × Performance × Quality. It provides a comprehensive measure of how effectively equipment is being utilized, with 100% representing perfect production.

  6. What is a Failure Mode and Effects Analysis (FMEA)?

    Answer: A systematic method for evaluating potential failure modes, their causes, and their effects on system operation

    FMEA systematically identifies all potential ways equipment can fail, evaluates the severity and likelihood of each, and prioritizes actions to mitigate the highest risks.