A meter shows 118.4 ft^3, and a volumetric tank indicates the actual volume is 900.1 gal. What is the percent meter accuracy?

• A. 7.6%
• B. 13.2%
• C. 86.8%
• D. 98.39%

Answer: (D)

To determine meter accuracy, compare the volume the meter indicates (in the same units as the actual volume) and express it as a percentage of the true volume.

Convert the meter reading from cubic feet to gallons: 118.4 ft^3 × 7.48052 gal/ft^3 ≈ 885.69 gallons.

Now compare to the actual volume: 900.1 gallons.

Percent accuracy = (885.69 / 900.1) × 100 ≈ 98.39%.

So the meter is about 98.39% accurate, meaning it reads about 1.6% low compared to the true volume.