Florida Wastewater Practice Test

If a gallon of water weighs 8.34 pounds, how much does a cubic foot of water weigh given it holds 7.48 gallons?

1. 52.5 pounds

2. 62.4 pounds

3. 76.3 pounds

4. 88.2 pounds

The correct answer is: 62.4 pounds

To determine the weight of a cubic foot of water, you can start by calculating the weight of the water it contains. Since a gallon of water weighs 8.34 pounds and a cubic foot contains 7.48 gallons, the total weight can be calculated by multiplying the weight of a gallon by the number of gallons in a cubic foot: 8.34 pounds/gallon x 7.48 gallons = 62.4 pounds This result indicates that a cubic foot of water weighs 62.4 pounds. This value is significant in the context of wastewater management and engineering, as understanding the weight of water is crucial for designing systems that handle water transport and treatment. The correct answer, therefore, is based on accurate multiplication, showcasing the direct relationship between volume and weight for water, which is constant under normal conditions.