AERIAL APPLICATION EXAMINATION TEST 2025/2026
QUESTIONS AND ANSWERS RATED A+
✔✔Signs of shock from pesticide exposure? - ✔✔-Pale, cold, moist, clammy skin
-Vacant eyes with dilated pupils
✔✔What type of antidotal drugs should be administered ONLY by a physician? - ✔✔-
Atropine sulfate
-Protopam chloride
-Dimercaperol
-Sodium thiosulfate
ETC
✔✔Improper use of antidotal drugs can cause what to a pesticide injury victim? -
✔✔Death
✔✔In the event of an aerial applicator crash, what should be your first action? -
✔✔Grab a fire extinguisher and immediately head to the crash site.
✔✔If the plane is on fire, what should your steps be? - ✔✔-Use the fire extinguisher to
help pilot out of the crash
-Check pilot for injury/contamination
-Clean contamination off pilot
-Loosen restrictive clothing, stop heavy bleeding
-Call ambulance
✔✔Nontarget crops, humans or domestic animal habitats and wildlife environments may
be harmed by what? - ✔✔Pesticide drift
✔✔What governs the legal use of a pesticide? - ✔✔The target site, NOT the target pest
✔✔Can you legally apply a pesticide to a site not mentioned on a label if you are
targeting a pest permitted by the label? - ✔✔NO, because the target site is what
determines legal use of a product.
✔✔What is the single most important factor affecting drift? - ✔✔Droplet size
✔✔What is spray drift? - ✔✔The PHYSICAL movement of spray particles through the
air at the time of a pesticide application.
✔✔What movement types are NOT considered pesticide drift? - ✔✔-Erosion
-Migration
-Volitility
-Windblown contaminated soils
,✔✔Spray droplet size is affected by: - ✔✔The:
-Equipment
-Formulation
-Adjuvents selected
-Weather conditions
✔✔Spray droplets are generally measured in: - ✔✔Microns
✔✔The measurement of a micron is what? - ✔✔one millionth of a meter
✔✔Spray droplets of what size are not visible to the unaided eye? - ✔✔Less than 100
microns
✔✔Droplets with diameters of 150 microns are similar in size to? - ✔✔The diameter of a
human hair
✔✔Droplets of what size make up most drifting pesticides? - ✔✔Less than 150 microns
✔✔The "droplet size spectrum" of a given nozzle is? - ✔✔The entire range of droplet
sizes that it emits
✔✔Dry fog is generally what micron measurement? - ✔✔5 micron
✔✔Misty rain is generally what micron measurement? - ✔✔100 micron
✔✔Heavy rain is generally what micron measurement? - ✔✔1000 micron
✔✔Medium rain is generally what micron measurement? - ✔✔500 micron
✔✔What is VMD? - ✔✔Volume Median Diameter
✔✔VMD tells you what? - ✔✔The droplet diameter at which half of the volume of the
spray contains larger droplets and half contains smaller droplets.
✔✔VMD is helpful for predicting what? - ✔✔Nozzle tips capacity to provide spray
coverage.
✔✔VMD can also be used to describe in simpler terms? - ✔✔The "spread" of droplet
sizes in a given droplet spectrum.
✔✔Settling velocity is what? - ✔✔The rate at which a spray droplet falls through the air
toward the ground.
, ✔✔Another term for settling velocity is? - ✔✔Fall Rate
✔✔Settling velocity is generally roughly proportional to what? - ✔✔The square of a
droplets diameter.
✔✔The settling velocity of a 200 micron droplet is? - ✔✔231 feet/minute
✔✔The settling velocity of a 20 micron droplet is - ✔✔2.4 feet/minute
✔✔What can you adjust to alter spray droplet size? - ✔✔-Nozzle type
-Orifice diameter
-Spray pattern angle
-Travel speed
-Spray pressure
-Nozzle mounting angle
✔✔What are a few of the common nozzle types used in aerial application? - ✔✔-Cone
-Fan
-Straight stream
-Rotary atomizers
✔✔Which spray pattern angle is less likely to create drift prone droplets, 80 or 110
degree? - ✔✔80 degree
✔✔Which spray pattern is less likely to produce drift prone droplets, conical or fan? -
✔✔Fan pattern
✔✔What influence does air shear have on spray droplets? - ✔✔Causes droplets to
collide with each other an break up, creating a greater number of drift prone droplets.
✔✔How should nozzles be angled to avoid disruption by air shear? - ✔✔In the same
direction as the air flow, generally straight back for a fixed wing aircraft.
✔✔When applying pesticides aerially, what can you do to create the lest drift possible? -
✔✔Apply using the slowest speed you can safely operate at.
✔✔Increasing spray pressure causes what? - ✔✔-Spray droplets to become smaller
-A larger proportion of the spray to become drift prone
✔✔To double your spray output using pressure, what sort of increase to pump pressure
must you have? - ✔✔The pressure must be quadrupled
✔✔What other options do aerial applicators have to alter spray output? - ✔✔-Change in
travel speed
QUESTIONS AND ANSWERS RATED A+
✔✔Signs of shock from pesticide exposure? - ✔✔-Pale, cold, moist, clammy skin
-Vacant eyes with dilated pupils
✔✔What type of antidotal drugs should be administered ONLY by a physician? - ✔✔-
Atropine sulfate
-Protopam chloride
-Dimercaperol
-Sodium thiosulfate
ETC
✔✔Improper use of antidotal drugs can cause what to a pesticide injury victim? -
✔✔Death
✔✔In the event of an aerial applicator crash, what should be your first action? -
✔✔Grab a fire extinguisher and immediately head to the crash site.
✔✔If the plane is on fire, what should your steps be? - ✔✔-Use the fire extinguisher to
help pilot out of the crash
-Check pilot for injury/contamination
-Clean contamination off pilot
-Loosen restrictive clothing, stop heavy bleeding
-Call ambulance
✔✔Nontarget crops, humans or domestic animal habitats and wildlife environments may
be harmed by what? - ✔✔Pesticide drift
✔✔What governs the legal use of a pesticide? - ✔✔The target site, NOT the target pest
✔✔Can you legally apply a pesticide to a site not mentioned on a label if you are
targeting a pest permitted by the label? - ✔✔NO, because the target site is what
determines legal use of a product.
✔✔What is the single most important factor affecting drift? - ✔✔Droplet size
✔✔What is spray drift? - ✔✔The PHYSICAL movement of spray particles through the
air at the time of a pesticide application.
✔✔What movement types are NOT considered pesticide drift? - ✔✔-Erosion
-Migration
-Volitility
-Windblown contaminated soils
,✔✔Spray droplet size is affected by: - ✔✔The:
-Equipment
-Formulation
-Adjuvents selected
-Weather conditions
✔✔Spray droplets are generally measured in: - ✔✔Microns
✔✔The measurement of a micron is what? - ✔✔one millionth of a meter
✔✔Spray droplets of what size are not visible to the unaided eye? - ✔✔Less than 100
microns
✔✔Droplets with diameters of 150 microns are similar in size to? - ✔✔The diameter of a
human hair
✔✔Droplets of what size make up most drifting pesticides? - ✔✔Less than 150 microns
✔✔The "droplet size spectrum" of a given nozzle is? - ✔✔The entire range of droplet
sizes that it emits
✔✔Dry fog is generally what micron measurement? - ✔✔5 micron
✔✔Misty rain is generally what micron measurement? - ✔✔100 micron
✔✔Heavy rain is generally what micron measurement? - ✔✔1000 micron
✔✔Medium rain is generally what micron measurement? - ✔✔500 micron
✔✔What is VMD? - ✔✔Volume Median Diameter
✔✔VMD tells you what? - ✔✔The droplet diameter at which half of the volume of the
spray contains larger droplets and half contains smaller droplets.
✔✔VMD is helpful for predicting what? - ✔✔Nozzle tips capacity to provide spray
coverage.
✔✔VMD can also be used to describe in simpler terms? - ✔✔The "spread" of droplet
sizes in a given droplet spectrum.
✔✔Settling velocity is what? - ✔✔The rate at which a spray droplet falls through the air
toward the ground.
, ✔✔Another term for settling velocity is? - ✔✔Fall Rate
✔✔Settling velocity is generally roughly proportional to what? - ✔✔The square of a
droplets diameter.
✔✔The settling velocity of a 200 micron droplet is? - ✔✔231 feet/minute
✔✔The settling velocity of a 20 micron droplet is - ✔✔2.4 feet/minute
✔✔What can you adjust to alter spray droplet size? - ✔✔-Nozzle type
-Orifice diameter
-Spray pattern angle
-Travel speed
-Spray pressure
-Nozzle mounting angle
✔✔What are a few of the common nozzle types used in aerial application? - ✔✔-Cone
-Fan
-Straight stream
-Rotary atomizers
✔✔Which spray pattern angle is less likely to create drift prone droplets, 80 or 110
degree? - ✔✔80 degree
✔✔Which spray pattern is less likely to produce drift prone droplets, conical or fan? -
✔✔Fan pattern
✔✔What influence does air shear have on spray droplets? - ✔✔Causes droplets to
collide with each other an break up, creating a greater number of drift prone droplets.
✔✔How should nozzles be angled to avoid disruption by air shear? - ✔✔In the same
direction as the air flow, generally straight back for a fixed wing aircraft.
✔✔When applying pesticides aerially, what can you do to create the lest drift possible? -
✔✔Apply using the slowest speed you can safely operate at.
✔✔Increasing spray pressure causes what? - ✔✔-Spray droplets to become smaller
-A larger proportion of the spray to become drift prone
✔✔To double your spray output using pressure, what sort of increase to pump pressure
must you have? - ✔✔The pressure must be quadrupled
✔✔What other options do aerial applicators have to alter spray output? - ✔✔-Change in
travel speed
