Safety, Fire & Survival · Fire — Structural Protection
An 'A-class' division in SOLAS structural fire protection is a bulkhead/deck that is:
- AMade of combustible material
- BOnly a smoke curtain
- CConstructed of steel/equivalent, insulated to limit temperature rise and prevent passage of flame and smoke for up to 60 minutes✓ Correct
- DRequired only on tankers
Explanation
A-class divisions are steel or equivalent, capable of preventing the passage of smoke and flame for one hour (the standard fire test), with insulation graded A-60/A-30/A-15/A-0 by the time the unexposed side stays below the temperature limit.
Authority: SOLAS Chapter II-2 (structural fire protection)
Practice the full Safety, Fire & Survival bank
Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Safety, Fire & Survival questions
- Fire Theory
The three elements that must be present for a fire to burn (the fire triangle) are:
- Fire Theory
A fire involving flammable liquids such as gasoline, oil, or grease is what class of fire?
- Fire Theory
A fire in energized electrical equipment is class C. The first action that makes it safer to fight is to:
- Firefighting
Why is water the preferred agent for a Class A fire?
- Firefighting
A fixed CO2 flooding system extinguishes a fire in an engine room primarily by:
- Firefighting
Before releasing a fixed CO2 system into a machinery space, the operator must FIRST: