Chapter 8- Calibrating Aerial Application Equiptment Flashcards
The most serious effect of over application as a result of poor calibration would be…
A phytotoxic effect on treated plants
The purpose of calibration is to…
Apply the correct amount of pesticide
Applying a pesticide at a rate that is higher than the pesticide label rate is…
Illegal
Pest resistance may be caused be using…
Less than the labeled rate of the pesticide
Which of the following formulations is most abrasive to spray nozzles?
Wettable powders (WP)
Knowing the accurate volume of the spray tank is necessary to determine the…
Area that can be treated in a single load
Increasing airspeed without changing the spray output will result in…
Less pesticide active ingredient applied per acre
If 1700 ounces of material is collected from nozzles on a helicopter spray boom in 90 seconds, what is the total flow rate in gallons per minute?
8.85
An aircraft spraying system has an output rate of 8 gallons per minute. How many gallons are sprayed per mile when the aircraft travels at 130miles per hour?
3.7
An effective swath width is the…
Width of a single pass that includes portions of overlaps from other passes
Prop wash displacement would be characterized by a spray pattern that is heavier…
On the left half of the swath
How many acres per minute will be treated by an aircraft traveling at 135miles per hour and producing a 47-foot effective swath?
12.8
If an aircraft treats 10.1 acres per minute and has an output of 19 gallons per minute. What is the rate of application per acre (in gallons)?
1.88
An aircraft sprays 20.2 gallons per minute. How many minutes of spraying time are needed to spray out 147 gallons of spray mixture?
7.3
At 11.3 gallons per acre, how many acres can be sprayed with 147 gallons of spray mixture?
13
If an aircraft treats 14 acres per tank of spray mixture, how many pints of pesticide liquid should be put into the spray tank to apply at a rate of 1.5 pints per acre?
21
To increase the per acre application rate, the best method would be to…
Decrease the pump pressure
How many acres are in a rectangular field that measures 620feet by 1280feet?
18.2
620x1280=793,600ft^2
43,550ft^2=1acre
793,600\43,550=18acres
How many acres are in a triangular field that measures 7,800feet at its base and has a height of 1,564feet?
140
A=1/2BxH
7,800x1,564=12,199,200
12,199,200x0.5=6,099,600 area of triangle
6,0099,600/43,560=140acres
A circular field with a radius of 296feet contains how many acres?
6.3
A=3.14 x r^2
296^2=87,616
87,616 x 3.14= 275,114.24
43,560ft^2=1acre
275,114.24/43,560=6.3acres
