What is the gallons-per-acre result when 4 pints are collected during knapsack calibration?

What is the gallons-per-acre result when 4 pints are collected during knapsack calibration?

• A. 80 gallons per acre
• B. 40 gallons per acre
• C. 20 gallons per acre
• D. 160 gallons per acre

Answer: (A)

In knapsack calibration, you determine gallons per acre by dividing the total gallons collected by the area sprayed, measured in acres. Convert the liquid you collected into gallons first: 4 pints equals 0.5 gallons. The standard calibration test area for this method is typically an 18 ft by 15 ft plot, which is 270 square feet. Converting that area to acres: 270 ÷ 43560 ≈ 0.00619 acres. Then the gallons-per-acre result is 0.5 ÷ 0.00619 ≈ 80.7, which rounds to about 80 gallons per acre. So the result is around 80 gpa.

In knapsack calibration, you determine gallons per acre by dividing the total gallons collected by the area sprayed, measured in acres. Convert the liquid you collected into gallons first: 4 pints equals 0.5 gallons. The standard calibration test area for this method is typically an 18 ft by 15 ft plot, which is 270 square feet. Converting that area to acres: 270 ÷ 43560 ≈ 0.00619 acres. Then the gallons-per-acre result is 0.5 ÷ 0.00619 ≈ 80.7, which rounds to about 80 gallons per acre. So the result is around 80 gpa.