WASHINGTON PESTICIDE LAWS AND SAFETY PRACTICE TEST EXAM LATEST 2026
UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
What type of pesticide formulation consists of a liquid dispersed as droplets in another liquid
and may require agitiation?
A. Microencapsulated.
B. Solution.
C. Suspension.
D. Emulsion. - Correct Answer -C
Which liquid pesticide formulation contains solid particles that do not dissolve in either water or
oil and may contribute to abrasive wear of nozzles and pumps?
A. Ultra-low volume (ULV).
B. Invert emulsions.
C. Aerosols (A).
D. Flowables (F)/ Liquids (L). - Correct Answer -D
Which dry/solid formulation requires constant agitation and may be abrasive to pumps and
nozzles and cause them to wear out quickly?
A. Dusts (D)
B. Granules (G)
C. Wettable powders (WP)
D. Soluble powders (SP) - Correct Answer -C
1|Page
,Which type of dry/solid pesticide formulation is always dry and can easily drift to non-target
sites?
A. Dusts.
B. Granules.
C. Pellets.
D. Baits. - Correct Answer -A
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
Which type of adjuvant increases the adhesion of solid particles to target surfaces?
A. Compatibility agents.
B. Stickers
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,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
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
3|Page
, 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
Which statement is true about inducing vomiting for a victim of oral pesticide exposure?
A. Always induce vomiting after a victim has swallowed a pesticide.
B. Induce vomiting with the victim lying flat on his back.
C. Ipecac syprup is routinely recommended to induce vomiting.
D. Before inducing vomiting, first give the victim at least 2 glasses of water to dilute the product.
- Correct Answer -D
What type of PPE should you wear during an application if large amounts of a pesticide could be
deposited on your clothing over an extended period of time?
4|Page
UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
What type of pesticide formulation consists of a liquid dispersed as droplets in another liquid
and may require agitiation?
A. Microencapsulated.
B. Solution.
C. Suspension.
D. Emulsion. - Correct Answer -C
Which liquid pesticide formulation contains solid particles that do not dissolve in either water or
oil and may contribute to abrasive wear of nozzles and pumps?
A. Ultra-low volume (ULV).
B. Invert emulsions.
C. Aerosols (A).
D. Flowables (F)/ Liquids (L). - Correct Answer -D
Which dry/solid formulation requires constant agitation and may be abrasive to pumps and
nozzles and cause them to wear out quickly?
A. Dusts (D)
B. Granules (G)
C. Wettable powders (WP)
D. Soluble powders (SP) - Correct Answer -C
1|Page
,Which type of dry/solid pesticide formulation is always dry and can easily drift to non-target
sites?
A. Dusts.
B. Granules.
C. Pellets.
D. Baits. - Correct Answer -A
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
Which type of adjuvant increases the adhesion of solid particles to target surfaces?
A. Compatibility agents.
B. Stickers
2|Page
,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
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
3|Page
, 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
Which statement is true about inducing vomiting for a victim of oral pesticide exposure?
A. Always induce vomiting after a victim has swallowed a pesticide.
B. Induce vomiting with the victim lying flat on his back.
C. Ipecac syprup is routinely recommended to induce vomiting.
D. Before inducing vomiting, first give the victim at least 2 glasses of water to dilute the product.
- Correct Answer -D
What type of PPE should you wear during an application if large amounts of a pesticide could be
deposited on your clothing over an extended period of time?
4|Page
