Safety Regulations and Compliance 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 Safety Regulations and Compliance flashcards as text
The 'as low as reasonably practicable' (ALARP) principle requires that residual risk be reduced until:
Answer: The cost of further reduction is grossly disproportionate to the safety benefit gained
ALARP means risks must be reduced until the cost of further risk reduction is grossly disproportionate to the additional safety benefit achieved.
Which NFPA standard provides requirements for emergency and standby power systems relevant to safety reliability?
Answer: NFPA 110
NFPA 110 covers emergency and standby power systems, including installation, maintenance, and testing requirements for systems that support life safety.
In the context of the OSHA hierarchy of controls, substitution refers to:
Answer: Replacing a hazardous material or process with a less hazardous one
Substitution means replacing the hazard itself—such as swapping a toxic chemical for a safer one—and is the second most preferred control after elimination.
Under OSHA's Confined Space standard (29 CFR 1910.146), a permit-required confined space must have:
Answer: A written permit that includes hazards, controls, and rescue procedures
A written entry permit documenting identified hazards, required controls, acceptable entry conditions, communication procedures, and rescue means is mandatory for permit-required spaces.
A reliability engineer uses a Failure Mode, Effects, and Criticality Analysis (FMECA). The 'criticality' number is computed as:
Answer: Failure mode ratio × failure rate × mission time × probability of loss
Per MIL-STD-1629A, criticality (Cm) for a failure mode = failure mode ratio (α) × failure rate (λp) × mission time (t) × conditional probability of loss (β).
The Global Harmonized System (GHS) of Classification and Labelling of Chemicals requires Safety Data Sheets (SDS) to have how many sections?
Answer: 16
GHS-aligned SDS documents contain exactly 16 standardized sections covering hazard identification, composition, first aid, handling, and other safety information.
Which technique is used to quantify the probability of top-event occurrence in a fault tree, given known basic event probabilities?
Answer: Minimal cut set analysis combined with Boolean algebra
Minimal cut sets are identified via Boolean algebra applied to the fault tree; their probabilities are then combined (using inclusion-exclusion) to calculate the top-event probability.