Risk Assessment and Mitigation Flashcards
7 cards from real CRE 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 and Mitigation flashcards as text
In Bow-Tie analysis, the 'top event' represents:
Answer: The hazardous event at the center connecting threats and consequences
The top event in a Bow-Tie diagram is the central hazardous event that separates threat-side barriers from consequence-side barriers.
Which technique is most appropriate for identifying common-cause failures that can defeat redundant systems?
Answer: Common Cause Failure (CCF) analysis
CCF analysis specifically examines shared dependencies and environmental factors that can simultaneously affect multiple redundant components.
The beta factor model in common-cause failure analysis represents:
Answer: The fraction of total failure rate attributed to common-cause events
The beta factor (β) is the proportion of component failures that are common-cause failures relative to the total failure rate.
Which risk assessment output is most useful for prioritizing corrective actions in a resource-constrained environment?
Answer: Risk Priority Number (RPN) ranking
RPN = Severity × Occurrence × Detection provides a ranked list that helps teams prioritize corrective actions when resources are limited.
Residual risk is best defined as:
Answer: Risk that remains after all planned mitigation measures are implemented
Residual risk is the level of risk that persists after controls and mitigations have been applied, which must then be evaluated for acceptability.
In risk assessment, a 'barrier' or 'safeguard' is most accurately described as:
Answer: Any measure that prevents a hazard from causing harm or reduces consequence severity
A barrier is any physical, procedural, or administrative control that interrupts the accident sequence between a hazard and its consequences.
When applying risk-based maintenance, the primary criterion for setting maintenance intervals is:
Answer: The consequence and likelihood of failure without maintenance
Risk-based maintenance uses the probability and consequences of failure to determine the optimal inspection and maintenance frequency for each asset.