Ohio Pesticide Applicator Core Exam, Calibration and Math: all 40 questions

All questions from the Calibration and Math section for Ohio Pesticide Applicator Core Exam, each with the correct answer.

11001How many acres is a rectangular field that measures 660 feet by 330 feet? (1 acre = 43,560 square feet)
11002How many square feet are in 2.5 acres?
11003A circular area has a radius of 50 feet. What is its approximate area? (area = 3.14 x radius x radius)
11004A triangular area has a base of 200 feet and a height of 100 feet. What is its area? (area = 1/2 x base x height)
11005A lawn is 80 feet by 120 feet. How many units of 1,000 square feet does it contain?
11006In the 1/128 acre calibration method, a nozzle collects 18 fluid ounces over the course. What is the sprayer output in gallons per acre?
11007What course length covers 1/128 acre (340 square feet) for a boom with 30-inch nozzle spacing?
11008A flat fan nozzle puts out 0.4 gallons per minute at 5 mph with 20-inch spacing. What is the application rate in gallons per acre? (GPA = GPM x 5,940 / (mph x spacing in inches))
11009A nozzle delivers 0.5 gallons per minute at 4 mph with 20-inch spacing. What is the rate in gallons per acre? (GPA = GPM x 5,940 / (mph x spacing in inches))
11010A sprayer travels 264 feet in 30 seconds. What is its speed in miles per hour?
11011A tractor covers 100 feet in 17 seconds. What is its approximate speed in mph? (mph = feet x 60 / (seconds x 88))
11012A sprayer tank holds 200 gallons and is calibrated to apply 20 gallons per acre. How many acres does one full tank cover?
11013A 300-gallon tank applies 15 gallons per acre. The label calls for 1.5 quarts of product per acre. How many gallons of product go into a full tank?
11014How much product is needed to treat 40 acres at 3 pints per acre?
11015A 500-gallon sprayer is calibrated at 25 GPA. How many acres does it cover per tank?
11016How many gallons of spray mix are needed to treat 12 acres at 18 GPA?
11017A product contains 4 pounds of active ingredient per gallon. The label rate is 2 pounds of active ingredient per acre. How many gallons of product are needed for 20 acres?
11018A wettable powder contains 50% active ingredient. The label rate is 2 pounds of active ingredient per acre. How many pounds of product are needed for 10 acres?
11019How much of a 20% concentrate is needed to make 5 gallons of a 2% solution?
11020What is 0.05% expressed in parts per million (ppm)?
11021About how many pounds of 100% active ingredient are needed to make 1,000 gallons of a 10 ppm solution? (water weighs 8.34 pounds per gallon)
11022A label directs 1 fluid ounce of product per gallon of water. How many fluid ounces are needed for 25 gallons of mix?
11023A granular product is labeled at 100 pounds per acre. What is the rate in pounds per 1,000 square feet?
11024A label calls for 2.5 pounds of granules per 1,000 square feet. How many pounds are needed for 12,000 square feet?
11025A granular product is applied at 3 pounds per 1,000 square feet. What is that in pounds per acre?
11026A granular product is 5% active ingredient. The label needs 1 pound of active ingredient per acre. How many pounds of product are needed for half an acre?
11027A spreader applies 12 pounds of granules over a 4,000 square foot test area. What is the rate per 1,000 square feet?
11028How many pints are in 3 gallons?
11029How many fluid ounces are in 2.5 quarts?
11030A 250-gallon tank is filled with water. About how much does the water weigh? (8.34 pounds per gallon)
11031A nozzle delivers 48 fluid ounces in 30 seconds. What is its output in gallons per minute?
11032A boom has 20 nozzles that each deliver 0.3 gallon per minute at 5 mph with 20-inch spacing. What is the rate in GPA? (GPA = GPM per nozzle x 5,940 / (mph x spacing in inches))
11033A sprayer is calibrated at 20 GPA at 4 mph. Pressure is not changed, and the operator speeds up to 5 mph. What is the new rate?
11034To double the output of a nozzle by changing pressure alone, the pressure must be about
11035The label rate is 1.5 pints per acre. A 100-gallon tank is calibrated at 25 GPA. How many quarts of product go into one tank?
11036A band 10 inches wide is sprayed over 30-inch rows in a 60-acre field. The broadcast rate is 2 pints per acre of area actually treated. How much product is needed?
11037A hand-can sprayer applies 2 gallons of spray per 1,000 square feet. What is that rate in gallons per acre?
11038A sprayer used 140 gallons to treat 5 acres. What is its application rate?
11039A label rate of 87 fluid ounces per acre equals about how many fluid ounces per 1,000 square feet?
11040A boom sprayer must apply 20 GPA at 5 mph across a 30-foot boom. About how many gallons per minute must the whole boom deliver? (GPM = GPA x mph x boom width in feet / 495)

Ohio Pesticide Applicator Core Exam, Calibration and Math: all 40 questions

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