Which statement best describes the risk of drum stock fuel?

• A. Contamination by water, dirt and rust is possible.
• B. Detonation is the main risk.
• C. Evaporation is the only concern.
• D. Sublimation risk is highest.

Answer: (A)

The main idea here is safety of stored fuel a drum-like container. When fuel sits in drums, the biggest risk is contamination from water, dirt, and rust. Water can seep in or form from condensation as the drum’s temperature changes, and metal or lining inside the drum can shed rust particles. Dirt and rust can also be introduced during handling or from the drum itself. Those contaminants can clog fuel filters, cause wear or corrosion in the fuel system, and lead to engine problems. Detonation is a combustion event that happens in the engine, not a storage issue. Evaporation can occur, but it isn’t the only or primary concern, and sublimation isn’t relevant for a liquid fuel. So contamination from water, dirt, and rust is the best description of the risk.