What are key aluminum hazards?

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Multiple Choice

What are key aluminum hazards?

Explanation:
The main idea is that aluminum in aircraft skin presents a heat-driven structural hazard. Aluminum alloys used for skin soften and melt at around 1,200°F (roughly 660°C). When exposed to strong heat, the skin can lose strength and actually burn through or rupture, creating openings for flame, oxygen, and fuel to interact and accelerate fire spread. This combination of rapid strength loss and potential melting makes aluminum a critical fire-propagation hazard. The other statements aren’t accurate: aluminum doesn’t melt at 3,000°F, bulk aluminum isn’t categorically non-flammable, and aluminum can indeed contribute hazards in a fire.

The main idea is that aluminum in aircraft skin presents a heat-driven structural hazard. Aluminum alloys used for skin soften and melt at around 1,200°F (roughly 660°C). When exposed to strong heat, the skin can lose strength and actually burn through or rupture, creating openings for flame, oxygen, and fuel to interact and accelerate fire spread. This combination of rapid strength loss and potential melting makes aluminum a critical fire-propagation hazard. The other statements aren’t accurate: aluminum doesn’t melt at 3,000°F, bulk aluminum isn’t categorically non-flammable, and aluminum can indeed contribute hazards in a fire.

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