How much does water weigh in imperial units?

• A. 32.2 lb/ft^3
• B. 62.4 lb/ft^3
• C. 9.81 lb/ft^3
• D. 14.7 lb/ft^3

Answer: (B)

Water has a standard density of about 62.4 pounds per cubic foot in imperial units. This value is crucial in various fields, including civil engineering and construction, as it allows professionals to calculate the weight of water for various applications, such as designing tanks, calculating fluid loads on structures, and assessing the buoyancy of marine vessels.

The density of water is often used in calculations involving fluid mechanics, hydrology, and environmental engineering. Understanding this specific weight helps engineers ensure that structures can withstand the forces exerted by water, thereby enhancing safety and functionality.

The other options present weights that are not applicable to the weight of water per cubic foot in imperial units. For instance, while 32.2 lb/ft³ might represent the weight of a different fluid or solid material, 9.81 lb/ft³ relates to the acceleration due to gravity and is not a measure of weight. Similarly, 14.7 lb/ft³ is atypical for water's density and isn't relevant in most engineering calculations involving water.