Chapter 8- Calibrating Aerial Application Equiptment

Question 1

The most serious effect of over application as a result of poor calibration would be…

Answer 1

A phytotoxic effect on treated plants

Question 2

The purpose of calibration is to…

Answer 2

Apply the correct amount of pesticide

Question 3

Applying a pesticide at a rate that is higher than the pesticide label rate is…

Answer 3

Illegal

Question 4

Pest resistance may be caused be using…

Answer 4

Less than the labeled rate of the pesticide

Question 5

Which of the following formulations is most abrasive to spray nozzles?

Answer 5

Wettable powders (WP)

Question 6

Knowing the accurate volume of the spray tank is necessary to determine the…

Answer 6

Area that can be treated in a single load

Question 7

Increasing airspeed without changing the spray output will result in…

Answer 7

Less pesticide active ingredient applied per acre

Question 8

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?

Answer 8

8.85

Question 9

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?

Answer 9

3.7

Question 10

An effective swath width is the…

Answer 10

Width of a single pass that includes portions of overlaps from other passes

Question 11

Prop wash displacement would be characterized by a spray pattern that is heavier…

Answer 11

On the left half of the swath

Question 12

How many acres per minute will be treated by an aircraft traveling at 135miles per hour and producing a 47-foot effective swath?

Answer 12

12.8

Question 13

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)?

Answer 13

1.88

Question 14

An aircraft sprays 20.2 gallons per minute. How many minutes of spraying time are needed to spray out 147 gallons of spray mixture?

Answer 14

7.3

Question 15

At 11.3 gallons per acre, how many acres can be sprayed with 147 gallons of spray mixture?

Answer 15

13

Question 16

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?

Answer 16

21

Question 17

To increase the per acre application rate, the best method would be to…

Answer 17

Decrease the pump pressure

Question 18

How many acres are in a rectangular field that measures 620feet by 1280feet?

Answer 18

18.2

620x1280=793,600ft^2

43,550ft^2=1acre

793,600\43,550=18acres

Question 19

How many acres are in a triangular field that measures 7,800feet at its base and has a height of 1,564feet?

Answer 19

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

Question 20

A circular field with a radius of 296feet contains how many acres?

Answer 20

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