IOWA CORE FINAL PAPER 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ The presence of sandy soil and a high water table _______ the
potential risk of groundwater contamination.
Answer: increases
◉ What should you do to contain a small pesticide spill?
A. Surround the spill with containment snakes or pillows.
B. Hose down the spill to dilute it.
C. Ignore it and continue working
D. Spread liquid detergent over the entire spill.
Answer: Surround the spill with containment snakes or pillows.
◉ Commercial pesticide applicators must be recertified every _____
years in Iowa.
Answer: 3
◉ What is the term for the downward movement of pesticides in the
soil?
Answer: Leaching
,◉ What is the formulation that consists of active ingredients placed
on a carrier such as clay and then suspended in a small amount of
liquid?
Answer: Flowable
◉ Which of the following statements about granular applicators is
true?
A. Drop spreaders drop granules by gravity below the food-gate
opening
B. Drop spreaders are popular for broadcast application over large
areas
C. Granular applicators should be recalibrated whenever the
temperature changes
D. Rotary spreaders are best used along hard surfaces
Answer: Drop spreaders drop granules by gravity below the food-
gate opening
◉ Which of the following attendance patterns is required for
commercial recertification in Iowa IF the applicator chooses to
recertify without retesting?
A. Attend an approved continuing instruction course sometime
during the 3 years
B. Attend an approved continuing instructions course each of the 3
years
C. Attend an extension field day each year
,D. All applicators MUST recertify by testing
Answer: Attend an approved continuing instructions course each of
the 3 years
◉ What should you do if a pesticide has been swallowed?
A. Induce vomiting only if the label instructs to do so
B. Rinse the mouth with plenty of water
C. Induce vomiting if an emulsifiable concentrate has been
swallowed
D. Keep the person's chin up to ensure open air passages
Answer: Induce vomiting only if the label instructs to do so
◉ Which of the following formulations dissolves in water?
A. Emulsifiable concentrates
B. Soluble powders
C. Water-dispersible granules
D. Wettable powders
Answer: Soluble powders
◉ What is the term for the combination and application of two or
more pesticides and/or fertilizers?
Answer: Tank mix
, ◉ Which of the following conditions are most favorable for the
volatilization to occur?
A. Cool air temperature, low relative humidity
B. Cool air temperature, high relative humidity
C. Warm air temperature, low relative humidity
D. Warm air temperature, high relative humidity
Answer: Warm air temperature, low relative humidity
◉ Which of the following describes plant injury resulting from a
pesticide application to plant?
A. Bioaccumulation
B. Phytotoxicity
C. Residual
D. Systemic
Answer: Phytotoxicity
◉ What is the best way to dispose of pesticide rinsates?
A. Apply it to other labeled area
B. Dispose it at a pesticide disposal site
C. Apply it over an impermeable surface
D. Save it and combine with other rinsates
QUESTIONS AND CORRECT ANSWERS
◉ The presence of sandy soil and a high water table _______ the
potential risk of groundwater contamination.
Answer: increases
◉ What should you do to contain a small pesticide spill?
A. Surround the spill with containment snakes or pillows.
B. Hose down the spill to dilute it.
C. Ignore it and continue working
D. Spread liquid detergent over the entire spill.
Answer: Surround the spill with containment snakes or pillows.
◉ Commercial pesticide applicators must be recertified every _____
years in Iowa.
Answer: 3
◉ What is the term for the downward movement of pesticides in the
soil?
Answer: Leaching
,◉ What is the formulation that consists of active ingredients placed
on a carrier such as clay and then suspended in a small amount of
liquid?
Answer: Flowable
◉ Which of the following statements about granular applicators is
true?
A. Drop spreaders drop granules by gravity below the food-gate
opening
B. Drop spreaders are popular for broadcast application over large
areas
C. Granular applicators should be recalibrated whenever the
temperature changes
D. Rotary spreaders are best used along hard surfaces
Answer: Drop spreaders drop granules by gravity below the food-
gate opening
◉ Which of the following attendance patterns is required for
commercial recertification in Iowa IF the applicator chooses to
recertify without retesting?
A. Attend an approved continuing instruction course sometime
during the 3 years
B. Attend an approved continuing instructions course each of the 3
years
C. Attend an extension field day each year
,D. All applicators MUST recertify by testing
Answer: Attend an approved continuing instructions course each of
the 3 years
◉ What should you do if a pesticide has been swallowed?
A. Induce vomiting only if the label instructs to do so
B. Rinse the mouth with plenty of water
C. Induce vomiting if an emulsifiable concentrate has been
swallowed
D. Keep the person's chin up to ensure open air passages
Answer: Induce vomiting only if the label instructs to do so
◉ Which of the following formulations dissolves in water?
A. Emulsifiable concentrates
B. Soluble powders
C. Water-dispersible granules
D. Wettable powders
Answer: Soluble powders
◉ What is the term for the combination and application of two or
more pesticides and/or fertilizers?
Answer: Tank mix
, ◉ Which of the following conditions are most favorable for the
volatilization to occur?
A. Cool air temperature, low relative humidity
B. Cool air temperature, high relative humidity
C. Warm air temperature, low relative humidity
D. Warm air temperature, high relative humidity
Answer: Warm air temperature, low relative humidity
◉ Which of the following describes plant injury resulting from a
pesticide application to plant?
A. Bioaccumulation
B. Phytotoxicity
C. Residual
D. Systemic
Answer: Phytotoxicity
◉ What is the best way to dispose of pesticide rinsates?
A. Apply it to other labeled area
B. Dispose it at a pesticide disposal site
C. Apply it over an impermeable surface
D. Save it and combine with other rinsates
