DOA CORE Study Guide Exam
Questions and Answers 100% Solved
Pest Category Signal Word LD50 mg/kil - ✔✔Cat 1 Danger 0-50
Cat 2 Warning 50-500
Cat 3 Caution 501-5000
Cat 4 No Signal Word 5000+
*LD= Lethal Dose that kills 505 of the test animals
*Lower the LD50 is the more toxic it is
All pesticide labels must have this statement? - ✔✔"Keep out of reach of
children"
What has no effect on nozzle performance? - ✔✔Speed
What do you check the label for? - ✔✔Determine where pesticide can or
cannot be applied
pesticide formulation: WP, D, G, EC, Fumigants - ✔✔WP: Wettable Power
D: Dust
G: Granual
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,EG: Emulsifiable Concentrate
Fumigants: Deadly Gas
Which is most absorptive through the skin? - ✔✔EG is most adsorbed
through skin
Supervision of uncertified applicator by a certified applicator does not need
to be physically present at jobsite unless LABEL says so - ✔✔a. Provide
written instruction
b. Be in control of the uncertified applicator
c. Be available when needed
Which formulation is most dangerous when mixing and loading? -
✔✔Emulsifiable Concentrate (EC) because undiluted, concentrate can
most readily be absorbed through skin
What tool is used to clean your nozzle? - ✔✔soft bristle brush
What is Organophosphat poisoning symptom? - ✔✔Eyes with pinpoint
pupils
How do you prevent back siphoning? - ✔✔Keep water hose above
pesticide tank while filing it with water
What type of shelf should not be used for pesticide storage? Why? -
✔✔wood shelf
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, too absorptive & porous.
Where should pesticides be stored? - ✔✔cool, dry, and locked storage
room
Un-rinsed pesticide containers fall under what guidelines? - ✔✔RCRA
(Resource Conservation & Recovery Act)
They regulate hazardous waste and what is considered hazardous waste
Who enforces the RCRA (Resource Conservation & Recovery Act)? -
✔✔Hawai'i Dept of Health
What should be done with excess pesticides remaining after job
completion? - ✔✔Check label for approved ways to rid excess pesticides at
jobsites (ex. treat ant mounds, apply excess in crawlspace, etc).
What are the most common ways for pesticides exposure? - ✔✔DOOR
Dermal (skin)
Ocular (eyes)
Oral (mouth/eating)
Respiratory (breath)
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Questions and Answers 100% Solved
Pest Category Signal Word LD50 mg/kil - ✔✔Cat 1 Danger 0-50
Cat 2 Warning 50-500
Cat 3 Caution 501-5000
Cat 4 No Signal Word 5000+
*LD= Lethal Dose that kills 505 of the test animals
*Lower the LD50 is the more toxic it is
All pesticide labels must have this statement? - ✔✔"Keep out of reach of
children"
What has no effect on nozzle performance? - ✔✔Speed
What do you check the label for? - ✔✔Determine where pesticide can or
cannot be applied
pesticide formulation: WP, D, G, EC, Fumigants - ✔✔WP: Wettable Power
D: Dust
G: Granual
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,EG: Emulsifiable Concentrate
Fumigants: Deadly Gas
Which is most absorptive through the skin? - ✔✔EG is most adsorbed
through skin
Supervision of uncertified applicator by a certified applicator does not need
to be physically present at jobsite unless LABEL says so - ✔✔a. Provide
written instruction
b. Be in control of the uncertified applicator
c. Be available when needed
Which formulation is most dangerous when mixing and loading? -
✔✔Emulsifiable Concentrate (EC) because undiluted, concentrate can
most readily be absorbed through skin
What tool is used to clean your nozzle? - ✔✔soft bristle brush
What is Organophosphat poisoning symptom? - ✔✔Eyes with pinpoint
pupils
How do you prevent back siphoning? - ✔✔Keep water hose above
pesticide tank while filing it with water
What type of shelf should not be used for pesticide storage? Why? -
✔✔wood shelf
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, too absorptive & porous.
Where should pesticides be stored? - ✔✔cool, dry, and locked storage
room
Un-rinsed pesticide containers fall under what guidelines? - ✔✔RCRA
(Resource Conservation & Recovery Act)
They regulate hazardous waste and what is considered hazardous waste
Who enforces the RCRA (Resource Conservation & Recovery Act)? -
✔✔Hawai'i Dept of Health
What should be done with excess pesticides remaining after job
completion? - ✔✔Check label for approved ways to rid excess pesticides at
jobsites (ex. treat ant mounds, apply excess in crawlspace, etc).
What are the most common ways for pesticides exposure? - ✔✔DOOR
Dermal (skin)
Ocular (eyes)
Oral (mouth/eating)
Respiratory (breath)
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
