Which hazard is associated with oxygen when in contact with petroleum products?

• A. Combustible ignite easily
• B. Dangerous when combined w/petroleum
• C. LOX can cause frostbite
• D. No hazard

Answer: (B)

Oxygen acts as an oxidizer, dramatically increasing how easily fuels burn. When petroleum products come into contact with oxygen—especially in an enriched or liquid-oxygen environment—the hydrocarbons can ignite and burn very rapidly, often with little or no ignition source. That makes the combination highly dangerous.

So the key idea is that the risk isn’t just that petroleum fuels burn, but that oxygen-rich conditions turn them into a much more hazardous fire scenario. The other statements don’t capture that specific interaction: frostbite from liquid oxygen is a separate hazard of handling LOX itself, not the interaction with petroleum; saying they ignite easily in general is true for fuels but doesn’t emphasize the heightened danger when an oxidizer like oxygen is present; and there is, of course, a real hazard, so “no hazard” is incorrect.