Prepare for the American Water Works Water Treatment Plant Operator Test. Study with multiple choice questions, each with hints and explanations. Get ready to excel!

Multiple Choice

8.34 is the weight of which quantity?

Water’s weight per volume is a common reference in plant calculations. At standard temperature, one U.S. gallon of water weighs about 8.34 pounds because 1 cubic foot of water weighs roughly 62.4 pounds and equals 7.4805 gallons, so 62.4 divided by 7.4805 gives about 8.34 pounds per gallon. This is the precise figure used in many WTPO contexts for dosing and capacity planning. Other options don’t fit: a cubic foot weighs far more (about 62.4 pounds), a liter weighs about 2.2046 pounds, and while eight pounds per gallon is a rough estimate, 8.34 pounds per gallon is the standard value. Therefore, the quantity described by 8.34 is one gallon of water.

Water’s weight per volume is a common reference in plant calculations. At standard temperature, one U.S. gallon of water weighs about 8.34 pounds because 1 cubic foot of water weighs roughly 62.4 pounds and equals 7.4805 gallons, so 62.4 divided by 7.4805 gives about 8.34 pounds per gallon. This is the precise figure used in many WTPO contexts for dosing and capacity planning. Other options don’t fit: a cubic foot weighs far more (about 62.4 pounds), a liter weighs about 2.2046 pounds, and while eight pounds per gallon is a rough estimate, 8.34 pounds per gallon is the standard value. Therefore, the quantity described by 8.34 is one gallon of water.