1|Page
Practice Exam, National Pesticide
Applicator Certification Core Manual
2026| Comprehensive Questions And
Correct Answers
What type of formulation covers either a liquid or dry pesticide particle with
platic?
A. Pellets.
B. Microencapsulates.
C. Water-soluble packets.
D. Water-dispersible granules. - correct-answer -B
Which statement is true about adjuvants?
A. They posses pesticidal activity.
B. They must be registered by the U.S. Environmental Protection Agency.
C. Adjuvants often increase spray application problems.
D. Adjuvants are either premixed in the pesticide formulation or added to the
spray tank mixture. - correct-answer -D
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Which type of adjuvant increases the adhesion of solid particles to target
surfaces?
A. Compatibility agents.
B. Stickers
C. Drift retardants.
D. Defoaming agents. - correct-answer -B
Which equation reflects the relationship between pesticide safety concerns?
A. Hazard=toxicity x exposure.
B. Toxicity=hazard x exposure.
C. Exposure= hazard x toxicity.
D. Hazard=exposure x risk - correct-answer -A
Which statement is true about the LD50 and LC50?
A. The LD50 and LC50 measure multiple toxic effects.
B. The LD50 and LC50 translate directly to humans.
C. The LD50 and LC50 measure the potential buildups of effects due to multiple
exposures.
D. The LD50 and LC50 measure acute toxicity. - correct-answer -D
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Which signal word is associated with Hazard Class III (i.e, small to medium dose
could cause death, illness, or skin, eye, or respiratory damage) and must have the
Spanish word "Aviso" on the label?
A. DANGER-POISON
B. DANGER
C. WARNING
D. CAUTION - correct-answer -C
What should be done if cholinesterase levels fall significantly below baseline?
A. Have the pesticide handler increase the use of personal protective equipment
until the cholinesterase level builds back up again to normal levels.
B. Remove the pesticide handler fromm pesticide exposure for at least one year.
C. Remove the pesticide handler from pesticide exposure until such time as the
cholinesterase level builds back up again to normal levels.
D. Seek medical attention immediately for the pesticide handler and have them
avoid mixing and loading pesticides for 48 hours after the last exposure. - correct-
answer -C
What would be the first objective if dermal exposure to a pesticide has occured?
A. Get the victim to fresh air immediately.
B. Administer artificial respiration.
C. Rinse the pesticide off to prevent absorption.
D. Apply a first-aid ointment to the affected area. - correct-answer -C
Practice Exam, National Pesticide
Applicator Certification Core Manual
2026| Comprehensive Questions And
Correct Answers
What type of formulation covers either a liquid or dry pesticide particle with
platic?
A. Pellets.
B. Microencapsulates.
C. Water-soluble packets.
D. Water-dispersible granules. - correct-answer -B
Which statement is true about adjuvants?
A. They posses pesticidal activity.
B. They must be registered by the U.S. Environmental Protection Agency.
C. Adjuvants often increase spray application problems.
D. Adjuvants are either premixed in the pesticide formulation or added to the
spray tank mixture. - correct-answer -D
,2|Page
Which type of adjuvant increases the adhesion of solid particles to target
surfaces?
A. Compatibility agents.
B. Stickers
C. Drift retardants.
D. Defoaming agents. - correct-answer -B
Which equation reflects the relationship between pesticide safety concerns?
A. Hazard=toxicity x exposure.
B. Toxicity=hazard x exposure.
C. Exposure= hazard x toxicity.
D. Hazard=exposure x risk - correct-answer -A
Which statement is true about the LD50 and LC50?
A. The LD50 and LC50 measure multiple toxic effects.
B. The LD50 and LC50 translate directly to humans.
C. The LD50 and LC50 measure the potential buildups of effects due to multiple
exposures.
D. The LD50 and LC50 measure acute toxicity. - correct-answer -D
, 3|Page
Which signal word is associated with Hazard Class III (i.e, small to medium dose
could cause death, illness, or skin, eye, or respiratory damage) and must have the
Spanish word "Aviso" on the label?
A. DANGER-POISON
B. DANGER
C. WARNING
D. CAUTION - correct-answer -C
What should be done if cholinesterase levels fall significantly below baseline?
A. Have the pesticide handler increase the use of personal protective equipment
until the cholinesterase level builds back up again to normal levels.
B. Remove the pesticide handler fromm pesticide exposure for at least one year.
C. Remove the pesticide handler from pesticide exposure until such time as the
cholinesterase level builds back up again to normal levels.
D. Seek medical attention immediately for the pesticide handler and have them
avoid mixing and loading pesticides for 48 hours after the last exposure. - correct-
answer -C
What would be the first objective if dermal exposure to a pesticide has occured?
A. Get the victim to fresh air immediately.
B. Administer artificial respiration.
C. Rinse the pesticide off to prevent absorption.
D. Apply a first-aid ointment to the affected area. - correct-answer -C
