Risk Assessment & Mitigation Flashcards
7 cards from real CLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Risk Assessment & Mitigation flashcards as text
Which failure mode analysis technique maps out all possible failure modes and their effects on system performance?
Answer: Failure Mode and Effects Analysis (FMEA)
FMEA systematically identifies potential failure modes and evaluates their effects on system performance to prioritize risk mitigation.
A lubrication technician notices that a gearbox oil temperature has increased by 15°C above its normal operating range. What is the PRIMARY risk this indicates?
Answer: Accelerated lubricant oxidation and degradation
Elevated temperature accelerates lubricant oxidation, which degrades the base oil and additives, reducing service life and increasing wear risk.
When assessing contamination risk in a hydraulic system, which particle size range is considered most damaging to hydraulic components?
Answer: Particles in the 5–15 micron range
Particles in the 5–15 micron range are most damaging because they are large enough to cause wear but small enough to pass through clearances repeatedly.
What does a Risk Priority Number (RPN) in FMEA represent?
Answer: The product of severity, occurrence, and detection ratings
RPN = Severity × Occurrence × Detection, and is used to prioritize which failure modes require the most urgent corrective action.
Which lubrication-related risk is most directly mitigated by implementing a scheduled oil sampling program?
Answer: Undetected lubricant degradation leading to equipment failure
Regular oil sampling detects early signs of lubricant degradation, contamination, and wear before they progress to equipment failure.
A plant switches from mineral oil to a synthetic lubricant in a compressor. What compatibility risk must be evaluated FIRST?
Answer: Seal and gasket material compatibility with the synthetic base fluid
Synthetic lubricants, especially PAO or ester-based types, can swell or shrink elastomeric seals differently than mineral oils, potentially causing leaks.
What risk management strategy involves accepting a known risk because the cost of mitigation exceeds the potential loss?
Answer: Risk retention (acceptance)
Risk retention means knowingly accepting a risk when mitigation costs outweigh potential losses, often documented in a formal risk register.