| 1. You want to measure out a 1/10 acre course to calibrate your boom sprayer. The boom width is 30 feet. How long should the "spraying" length of the course be?
a. 145 feet
b. 174 feet
c. 218 feet
d. none of the above
2. The flow rate from each nozzle on a boom sprayer should not vary more than ____ percent from the average flow rate of all the nozzles.
a. + or - 5
b. + or - 10
c. + or - 15
d. + or - 20
3. What should the flow rate in gallons per minute (GPM) be for each nozzle on a boom sprayer traveling at 5 miles per hour (MPH) applying 20 gallons per acre (GPA) with the nozzles spaced at 20 inches (W)?
a. 0.12
b. 0.34
c. 0.42
d. 0.85
4. A sprayer travels 300 feet in 34 seconds. What is its speed in miles per hour (MPH)? 
a. 3.8
b. 6.0
c. 8.2
d. 10.0
5. Using the tank refill method for calibrating a sprayer on a 1/10 acre course, an applicator needs 2.5 gallons (10 quarts) to refill the tank. The application rate is ____ gallons per acre.
a. 2.5
b. 12.5
c. 20
d. 25
6. How many 1000 square feet are in this irregular shaped turf area?
a. 11.43
b. 114.3
c. 25
d. 39
7. A compressed air sprayer is calibrated by spraying a 10 ft. x 20 ft. area using the tank refill method. If 8 ounces were used, what is the spraying rate in pints per 1000 square feet?
a. 1.2 pints
b. 2.5 pints
c. 3.1 pints
d. 3.0 quarts
8. A boom sprayer has a 300 gallon tank and is calibrated at 25 gallons per acre. A 12 acre field is to be sprayed with X, Y and Z pesticides. How much of each pesticide would be used to make one tank full of mix? The pesticide application rates from the labels are:
X = 1 pint/acre
Y = 1.5 pounds/acre
Z = 2 ounces/acre
a. 12 pts of X, 18 lbs of Y and 24 ozs of Z
b. 5 pts of X, 6 lbs of Y and 10 ozs of Z
c. 15 pts of X, 18 lbs of Y and 30 ozs of Z
d. 20 pts of X, 24 lbs of Y and 40 ozs of Z
9. From problem 8 above, how much of each pesticide and water would be added to the tank to spray 5 acres at labelled rates?
a. 20 pts of X, 24 lbs of Y and 40 ozs of Z in 200 gals of water
b. 10 pts of X, 12 lbs of Y and 20 ozs of Z in 100 gals of water
c. 15 pts of X, 18 lbs of Y and 30 ozs of Z in 298 gals of water
d. 5 pts of X, 7.5 lbs of Y and 10 ozs of Z in 125 gals of water
10. There are 36 nozzles on a 30 ft. boom. Each nozzle has a flow rate of 0.40 ± 0.02 gallons per minute (GPM) at 40 psi. The sprayer speed is 7 miles per hour (MPH). What is the application rate in gallons per acre (GPA)? 
w here: W = nozzle spacing in inches
a. 10 GPA
b. 17 GPA
c. 34 GPA
d. 40 GPA
11. A nozzle puts out 32 ounces in 30 seconds. What is the flow rate in gallons per minute (GPM)?
a. 0.5 GPM
b. 1.0 GPM
c. 1.5 GPM
d. 3.0 GPM
12. You want to apply a granular weed and feed material to a lawn area at a rate of 12 pounds (lbs.) per 1000 square feet (ft 2 ) with a 30 inch wide drop spreader. You will calibrate the spreader by making one pass down a 3 ft. x 50 ft. piece of plastic and collect and weigh the material. How many pounds of the weed and feed material should there be on the plastic to equal 12 lbs/1000 ft 2 ?
a. 0.5 lbs
b. 1.0 lbs
c. 1.5 lbs
d. 12 lbs 9/97
ANSWER SHEET
1. One acre = 43,560 square feet
1/10 acre =  = 4356 square feet
4356 square ft/30 ft (boom width) = 145.2 ft = 145 ft
2. + or - 5
3. GPM = GPA X MPH X W / 5940 = 20 X 5 X 20 / 5940 = 0.34 GPM
4. MPH = Feet X 60 / Seconds X 88 = 300 X 60 / 34 X 88 = 6 MPH
5. 2.5 x 10 = 25 GPA
6. Divide the area into known shapes, calculate the area of each shape in square feet. Add the areas and divide by 1000.
A 1 = 1/2 bh = 1/2 x (100 - 50) x 100 = 5000/2 = 2500
A 2 = wh = 50 x 100 = 5000
A 3 = pi r^2/2 = (3.14/2) x (100/2)^2 = 1.57 x (50)^2 = 3925
TOTAL = 11425 11425/1000 = 11.425 = 11.43
7. 10 ft. x 20 ft. = 200 ft 2
8.
X = 1 pt/ac x 12 ac/tank = 12 pts/tank
Y = 1.5 lb/ac x 12 ac/tank = 18 lbs/tank
Z = 2 oz/ac x 12 ac/tank = 24 oz/tank
9. X = 1 pt/ac x 5 ac = 5 pts
Y = 1.5 lb/ac x 5 ac = 7.5 lbs
Z = 2 oz/ac x 5 ac = 10 ozs
Water = 25 gal/ac x 5 ac = 125 gal (less volume of X, Y and Z pesticides)
Volume of Pesticides
5 pts = 80 ozs
+ 10 oz
90 ozs
0.7 gal is less than 1% of 100 gal so the volume of pesticides can be disregarded.
11. 
12.
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