Fire Hazard Management Flashcards
7 cards from real CFPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Fire Hazard Management flashcards as text
In wildland-urban interface (WUI) fire hazard management, the 'Zone 1' defensible space around a structure typically extends how far from the building and requires what treatment?
Answer: 0–30 feet; lean, clean, and green vegetation management
Zone 1 (0–30 feet) requires lean, clean, and green landscaping — removing dead plants and maintaining healthy, well-irrigated low-fuel vegetation closest to the structure.
A fire protection specialist is evaluating a tire storage facility. The PRIMARY concern with high-piled tire storage is:
Answer: Tires produce extremely high heat release rates and generate liquid runoff when burning, defeating suppression systems
Burning tires produce intense heat release rates and molten rubber runoff that can spread fire and overwhelm conventional sprinkler systems, requiring special suppression strategies.
Which document, required by OSHA 29 CFR 1910.119, requires employers to analyze process hazards for facilities handling highly hazardous chemicals above threshold quantities?
Answer: Process Hazard Analysis (PHA) under Process Safety Management (PSM)
OSHA's PSM standard (29 CFR 1910.119) mandates Process Hazard Analysis for facilities handling threshold quantities of highly hazardous chemicals to prevent catastrophic releases and fires.
A fire safety engineer is applying the fire risk assessment framework from SFPE Handbook. Which step follows hazard identification in the structured risk assessment process?
Answer: Estimate the frequency and consequence of identified fire scenarios
After identifying hazards, the next step is to characterize risk by estimating both the likelihood (frequency) and the magnitude (consequences) of credible fire scenarios.
A facility stores lithium-ion batteries in bulk. The MOST significant fire hazard unique to lithium-ion battery fires compared to conventional combustible fires is:
Answer: Thermal runaway propagation, which can cause multiple batteries to fail sequentially and release toxic, flammable gases
Thermal runaway in lithium-ion batteries produces self-sustaining exothermic reactions that can propagate cell-to-cell, releasing flammable and toxic gases even after apparent suppression.
When performing a fire hazard analysis for a high-rise building, the 'stack effect' is a critical factor because it:
Answer: Drives smoke movement through vertical shafts, potentially spreading smoke to uninvolved floors far from the fire
Stack effect creates pressure differentials that drive smoke vertically through elevator shafts, stairwells, and mechanical chases, spreading it to floors far above or below the fire.
A fire protection specialist reviews a compressed gas cylinder storage area. According to NFPA 55, which practice is REQUIRED to prevent fire hazard from flammable gas cylinders?
Answer: Separate oxygen and flammable gas cylinders by at least 20 feet or a fire-rated barrier of at least 30 minutes
NFPA 55 requires flammable and oxidizing gases (like oxygen) to be separated by 20 feet or a half-hour fire-rated noncombustible barrier to prevent a catastrophic combined fire/explosion.