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Category 11 Aerial Application Exam 2025 — Updated
Study Guide, Practice Test Questions, and Pesticide
Applicator Certification Requirements
Prepare for the Category 11 Aerial Application Exam 2025 with the latest study guide,
practice test questions, and certification requirements. Learn about aerial pesticide
application, safety regulations, and state licensing standards to pass your applicator exam
on the first try.
• Category 11 Aerial Application Exam 2025
• Aerial applicator certification exam
• Pesticide applicator exam category 11
• Aerial spraying exam study guide
How often does OmniSTAR DGPS compute satellite corrections? - ANSWER-Every 600 milliseconds
Who must install ALL DGPS equipment components? - ANSWER-An FAA certified maintenance
technician.
A basic DGPS component set consists of what? - ANSWER--A lightbar
-A DGPS mobile receiver
-A DGPS antenna
What is a DGPS lightbar used for? - ANSWER-It enables you to visualize off track errors and make
corrections quickly from the cockpit.
,2|Page
How often does the on board DGPS receiver send correction signals to the light bar? - ANSWER-5 times
per second
The centerline of the lightbar corresponds to? - ANSWER-The centerline of the swath that you are on.
If the LED's to the left illuminate, it means you need to shift to the? - ANSWER-To the right.
What are the two main methods of correction data trasmission? - ANSWER--FM radio tower beacon
(USCG) and (NDGPS)
-Communication satellite relay (WAAS,LAAS)
What are the two different types of radio beacon transmission? - ANSWER--Maritime DGPS
-Nationwide DGPS (NDGPS)
What is Maritime DGPS? - ANSWER-A USCG service that transmits real time GPS timing corrections on
coast guard radio beacon frequencies. Found in coastal areas.
At what rate does maritime DGPS accuracy decay at? - ANSWER-For receivers more than 100 miles away
from a maritime DGPS station, accuracy decays at a rate of 1 meter/150km, or 1 yard/90 miles.
What are the three types of satellite relay transmission? - ANSWER--WAAS
-LAAS
-Commercial DGPS
What is WAAS? - ANSWER-Wide Area Augmentation System supplies DGPS data for commercial aircraft
making transcontinental flights.
What is LAAS? - ANSWER-Local Area Augmentation System, enables precise navigational approach paths
to areas at or very near a commercial airport.
,3|Page
If the LED's to the right illuminate, it means you need to shift to the? - ANSWER-To the left.
Generally an led indicates a lateral discrepancy in what range? - ANSWER-2 feet to 6 inches, depending
on how sensitive it is set.
Upon centering using the LED lightbar, what type of navigation should you use to maintain course? -
ANSWER-Landmark navigation
What other GPS equipment is available for aerial applicators beyond the standard DGPS setup? -
ANSWER--System enhancing on board computers
-Spray output controllers and sensors
-Software packages tailored to link DGPS data to aerial applicators needs including chemical logging,
application mapping etc.
Throughout spraying what can on board computers collect? - ANSWER-Data to construct records for
customer billing, environmental reporting and GPS data analysis.
Modern on board DGPS computers enable precision spray boom operation through the use of what? -
ANSWER-Electronically regulated flow controllers, which change the application rate based upon air
speed.
At the minimum, an agricultural aircraft must be able to do what? - ANSWER--Safely life and transport
its cargo
-Disperse a pesticide accurately and safely at the target site without harming adjacent land or life
Which type of aircraft offer higher application speeds and higher payload capacity per dollar invested? -
ANSWER-Fixed wing aircraft
Which type of aircraft has greater maneuverability and speed variability? - ANSWER-Rotary wing aircraft
Which type of aircraft per unit of flying time is more expensive to operate? - ANSWER-Rotary wing
aircraft
, 4|Page
A typical aerial spray system consists of the following: - ANSWER--Tank
-Agitation system
-Filters
-Piping and fittings
-Pump and pressure gauges
-Spray boom
What item from an aerial spray system is typically mounted in front of the cockpit and as close to the
center of gravity as possible? - ANSWER-The tank
The spray tank has two sets of graduations printed on it that indicate what? - ANSWER--One indicates
the number of gallons in the tank when on the runway
-One shows spray tank gallonage while the aircraft is in flight
What are the four types of spray tanks used in aerial application setups? - ANSWER--Belly mount tanks
-Side mount tanks
-Internal mount tanks
-Sling load tanks(flown suspended under the aircraft by a line and cargo hook)
What are some examples of pesticide types that need constant agitation to keep from settling out? -
ANSWER--Dry Flowables
-Wettable Powders
What type of treatment site can lead to agitation in the spray tank being a necessity? - ANSWER-Long
fields where turnarounds are infrequent.
High flow rate set ups usually utilize what diameter of piping? - ANSWER-Two Inch
Low volume spray application work usually utilizes what diameter of piping? - ANSWER-One inch
Category 11 Aerial Application Exam 2025 — Updated
Study Guide, Practice Test Questions, and Pesticide
Applicator Certification Requirements
Prepare for the Category 11 Aerial Application Exam 2025 with the latest study guide,
practice test questions, and certification requirements. Learn about aerial pesticide
application, safety regulations, and state licensing standards to pass your applicator exam
on the first try.
• Category 11 Aerial Application Exam 2025
• Aerial applicator certification exam
• Pesticide applicator exam category 11
• Aerial spraying exam study guide
How often does OmniSTAR DGPS compute satellite corrections? - ANSWER-Every 600 milliseconds
Who must install ALL DGPS equipment components? - ANSWER-An FAA certified maintenance
technician.
A basic DGPS component set consists of what? - ANSWER--A lightbar
-A DGPS mobile receiver
-A DGPS antenna
What is a DGPS lightbar used for? - ANSWER-It enables you to visualize off track errors and make
corrections quickly from the cockpit.
,2|Page
How often does the on board DGPS receiver send correction signals to the light bar? - ANSWER-5 times
per second
The centerline of the lightbar corresponds to? - ANSWER-The centerline of the swath that you are on.
If the LED's to the left illuminate, it means you need to shift to the? - ANSWER-To the right.
What are the two main methods of correction data trasmission? - ANSWER--FM radio tower beacon
(USCG) and (NDGPS)
-Communication satellite relay (WAAS,LAAS)
What are the two different types of radio beacon transmission? - ANSWER--Maritime DGPS
-Nationwide DGPS (NDGPS)
What is Maritime DGPS? - ANSWER-A USCG service that transmits real time GPS timing corrections on
coast guard radio beacon frequencies. Found in coastal areas.
At what rate does maritime DGPS accuracy decay at? - ANSWER-For receivers more than 100 miles away
from a maritime DGPS station, accuracy decays at a rate of 1 meter/150km, or 1 yard/90 miles.
What are the three types of satellite relay transmission? - ANSWER--WAAS
-LAAS
-Commercial DGPS
What is WAAS? - ANSWER-Wide Area Augmentation System supplies DGPS data for commercial aircraft
making transcontinental flights.
What is LAAS? - ANSWER-Local Area Augmentation System, enables precise navigational approach paths
to areas at or very near a commercial airport.
,3|Page
If the LED's to the right illuminate, it means you need to shift to the? - ANSWER-To the left.
Generally an led indicates a lateral discrepancy in what range? - ANSWER-2 feet to 6 inches, depending
on how sensitive it is set.
Upon centering using the LED lightbar, what type of navigation should you use to maintain course? -
ANSWER-Landmark navigation
What other GPS equipment is available for aerial applicators beyond the standard DGPS setup? -
ANSWER--System enhancing on board computers
-Spray output controllers and sensors
-Software packages tailored to link DGPS data to aerial applicators needs including chemical logging,
application mapping etc.
Throughout spraying what can on board computers collect? - ANSWER-Data to construct records for
customer billing, environmental reporting and GPS data analysis.
Modern on board DGPS computers enable precision spray boom operation through the use of what? -
ANSWER-Electronically regulated flow controllers, which change the application rate based upon air
speed.
At the minimum, an agricultural aircraft must be able to do what? - ANSWER--Safely life and transport
its cargo
-Disperse a pesticide accurately and safely at the target site without harming adjacent land or life
Which type of aircraft offer higher application speeds and higher payload capacity per dollar invested? -
ANSWER-Fixed wing aircraft
Which type of aircraft has greater maneuverability and speed variability? - ANSWER-Rotary wing aircraft
Which type of aircraft per unit of flying time is more expensive to operate? - ANSWER-Rotary wing
aircraft
, 4|Page
A typical aerial spray system consists of the following: - ANSWER--Tank
-Agitation system
-Filters
-Piping and fittings
-Pump and pressure gauges
-Spray boom
What item from an aerial spray system is typically mounted in front of the cockpit and as close to the
center of gravity as possible? - ANSWER-The tank
The spray tank has two sets of graduations printed on it that indicate what? - ANSWER--One indicates
the number of gallons in the tank when on the runway
-One shows spray tank gallonage while the aircraft is in flight
What are the four types of spray tanks used in aerial application setups? - ANSWER--Belly mount tanks
-Side mount tanks
-Internal mount tanks
-Sling load tanks(flown suspended under the aircraft by a line and cargo hook)
What are some examples of pesticide types that need constant agitation to keep from settling out? -
ANSWER--Dry Flowables
-Wettable Powders
What type of treatment site can lead to agitation in the spray tank being a necessity? - ANSWER-Long
fields where turnarounds are infrequent.
High flow rate set ups usually utilize what diameter of piping? - ANSWER-Two Inch
Low volume spray application work usually utilizes what diameter of piping? - ANSWER-One inch
