Deck General · Fire Theory & Classes
The fire triangle consists of three elements. Which answer correctly names all three?
- AHeat, oxygen, and carbon dioxide
- BFuel, heat, and oxygen✓ Correct
- CFuel, flame, and smoke
- DIgnition source, combustible material, and water
Explanation
The fire triangle requires fuel (combustible material), heat (ignition energy), and oxygen (typically from air, which is 21% O2). Removing any one side of the triangle extinguishes the fire. Carbon dioxide is a product of combustion and an extinguishing agent, not a component of the triangle; smoke and flame are byproducts, not elements.
Authority: Firefighting (USCG deck topic)
Practice the full Deck General 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 Deck General questions
- Fire Theory & Classes
The fire tetrahedron adds a fourth element to the fire triangle. What is that fourth element?
- Fire Theory & Classes
A fire involving burning wood, paper, and rope on a vessel's deck is classified as which class?
- Fire Theory & Classes
A fire in the engine room involving spilled diesel fuel is classified as which class?
- Fire Theory & Classes
An electrician is working on an energized switchboard when insulation ignites. This fire is classified as:
- Fire Theory & Classes
Which class of fire involves combustible metals such as magnesium or titanium?
- Fire Theory & Classes
Class K fires involve which type of fuel and are most commonly found where?