What is the weight of a gallon of water?

A gallon of water weighs approximately 8.34 pounds or 3.78 kilograms. This means that the correct choice must align closely with this measurement.

The given answer indicates a weight of 4 kg (8.8 lb), which is relatively close to the standard weight of a gallon of water. This choice reflects an understanding that water is denser than many other liquids and provides a practical approximation for those in firefighting and similar fields.

Understanding the weight of water is crucial for fire service professionals, as water is a primary extinguishing agent. When calculating water supply needs and assessing the weight of hoses, equipment, and water in vehicles, accurate measurements can affect operational safety and efficiency during firefighting efforts.