IrrigationQuestion 3 of 100
A zone has four heads each using 3 GPM covering a total area of 400 square feet. What is the approximate precipitation rate?
a.About 2.9 inches per hour
b.About 0.5 inches per hour
c.About 12 inches per hour
d.About 0.03 inches per hour
Explanation
Total flow is 4 heads times 3 GPM equals 12 GPM. Using PR = 96.3 x 12 / 400, you get 1155.6 / 400, which is about 2.89 inches per hour. Rounding gives approximately 2.9 inches per hour.
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