Aerial Applicator CH03

Managing off-target pesticide drift during an aerial application is

• a. the ground Crews responsibility
• b. the property owners responsibility
• c. the Pilot's responsibility
• d. a requirement of a pilot's FAA licensing

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Off-target pesticide drift is the off-site movement of the pesticide that occurs

• a. anytime after an application
• b. at the time of the pesticide application or soon thereafter
• c. as residues on objects moving from the application site
• d. several hours to several days after an application

The color code for a nozzle that produces spray droplets in the extra-fine category is

• a. black
• b. red
• c. purple
• d. Orange

Generally the optimum time for making an aerial application of a liquid when droplet evaporation is a concern is

• a. early morning
• b. mid-morning
• c. early afternoon
• d. late afternoon

Tags

NGSS.MS-ESS2-5

Which of the following factors has no effect on off-target pesticide drift?

• a. nozzle orientation
• b. spray pressure
• c. constant 3 mph wind
• d. physical properties of the spray mixture

Wider angle spray nozzles usually produce _____ droplets than narrower spray nozzles

• a. coarser
• b. more uniform
• c. less uniform
• d. finer

The most effective boom lengths for reducing the amount of drift are

• a. 90% of the wingspan or the rotor span
• b. 75% of the wingspan or the rotor span
• c. 65% of the wingspan or the rotor span
• d. 50% of the wingspan or the rotor span

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Aside from external factors, the most important factors affecting off-target drift are

• a. physical properties of the spray mixture
• b. extremely high or low temperatures
• c. the size of the spray droplets and the percentage of droplets within a certain size range
• d. conditions leading to a temperature inversion layer

Driftable fines are droplets in the size range of

• a. larger than 500 microns
• b. 300 to 500 microns
• c. 200 to 300 microns
• d. 50 to 200 microns

The droplet size at which spray drift becomes a concern is

• a. 50 microns and below
• b. 100 microns and below
• c. 200 microns and below
• d. 300 microns and below

Tags

NGSS.HS-ETS1-3