California Qualified Applicator Certificate –
Category H: Seed Treatment (QAC) Practice
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the main purpose of seed treatment pesticides?
A. To increase seed size
B. To protect seeds from pests and diseases **
C. To enhance flavor
D. To improve soil fertility
Rationale: Seed treatments are applied to protect seeds from insects,
fungi, and other pathogens before and after planting.
2. Which type of pesticide is most commonly used for controlling fungal
pathogens on seeds?
A. Insecticides
B. Herbicides
, C. Fungicides **
D. Rodenticides
Rationale: Fungicides are used to prevent or control fungal infections
on seeds, ensuring healthy germination.
3. What does the abbreviation “QAC” stand for in California pesticide
regulations?
A. Qualified Agricultural Consultant
B. Qualified Applicator Certificate **
C. Quick Application Control
D. Quality Assurance Check
Rationale: QAC refers to the certification that allows an individual to
apply restricted-use pesticides in California.
4. What is the most important safety equipment when handling seed
treatment chemicals?
A. Lab coat only
B. Gloves, goggles, and protective clothing **
C. Earplugs
D. Respirator only
Rationale: Personal protective equipment (PPE) like gloves, goggles,
and protective clothing is essential to prevent chemical exposure.
5. Seed treatment pesticides are often applied using:
A. Foliar sprays
B. Seed coating or slurry **
, C. Soil fumigation
D. Aerial spraying
Rationale: Seed treatments are typically applied as coatings or
slurries directly to the seed before planting.
6. Which factor is most critical in determining the correct rate of seed
treatment pesticide?
A. Seed color
B. Seed size and type **
C. Field location
D. Harvest date
Rationale: Seed size and type determine how much pesticide is
required for effective protection.
7. What is the primary hazard of dust-off from treated seeds?
A. Nutrient depletion
B. Human inhalation exposure **
C. Seed weight increase
D. Soil compaction
Rationale: Dust from treated seeds can be inhaled, posing health
risks to workers and nearby populations.
8. Which type of chemical is commonly used to protect seeds from
insects?
A. Herbicides
B. Insecticides **
, C. Fungicides
D. Fertilizers
Rationale: Insecticides are applied to seeds to prevent damage from
seed and soil insects.
9. California regulations require that treated seeds be:
A. Colored or dyed **
B. Stored in metal containers only
C. Planted within 24 hours
D. Frozen before shipment
Rationale: California law requires treated seeds to be dyed or colored
to indicate chemical treatment and prevent accidental use.
10. Which of the following is considered a restricted-use pesticide in
seed treatment?
A. Common table salt
B. Chlorpyrifos **
C. Soap solution
D. Vinegar
Rationale: Certain insecticides like chlorpyrifos are restricted-use and
can only be applied by certified applicators.
11. What is the purpose of seed coating polymers?
A. To make seeds heavier
B. To improve pesticide adhesion **
C. To increase germination time
Category H: Seed Treatment (QAC) Practice
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the main purpose of seed treatment pesticides?
A. To increase seed size
B. To protect seeds from pests and diseases **
C. To enhance flavor
D. To improve soil fertility
Rationale: Seed treatments are applied to protect seeds from insects,
fungi, and other pathogens before and after planting.
2. Which type of pesticide is most commonly used for controlling fungal
pathogens on seeds?
A. Insecticides
B. Herbicides
, C. Fungicides **
D. Rodenticides
Rationale: Fungicides are used to prevent or control fungal infections
on seeds, ensuring healthy germination.
3. What does the abbreviation “QAC” stand for in California pesticide
regulations?
A. Qualified Agricultural Consultant
B. Qualified Applicator Certificate **
C. Quick Application Control
D. Quality Assurance Check
Rationale: QAC refers to the certification that allows an individual to
apply restricted-use pesticides in California.
4. What is the most important safety equipment when handling seed
treatment chemicals?
A. Lab coat only
B. Gloves, goggles, and protective clothing **
C. Earplugs
D. Respirator only
Rationale: Personal protective equipment (PPE) like gloves, goggles,
and protective clothing is essential to prevent chemical exposure.
5. Seed treatment pesticides are often applied using:
A. Foliar sprays
B. Seed coating or slurry **
, C. Soil fumigation
D. Aerial spraying
Rationale: Seed treatments are typically applied as coatings or
slurries directly to the seed before planting.
6. Which factor is most critical in determining the correct rate of seed
treatment pesticide?
A. Seed color
B. Seed size and type **
C. Field location
D. Harvest date
Rationale: Seed size and type determine how much pesticide is
required for effective protection.
7. What is the primary hazard of dust-off from treated seeds?
A. Nutrient depletion
B. Human inhalation exposure **
C. Seed weight increase
D. Soil compaction
Rationale: Dust from treated seeds can be inhaled, posing health
risks to workers and nearby populations.
8. Which type of chemical is commonly used to protect seeds from
insects?
A. Herbicides
B. Insecticides **
, C. Fungicides
D. Fertilizers
Rationale: Insecticides are applied to seeds to prevent damage from
seed and soil insects.
9. California regulations require that treated seeds be:
A. Colored or dyed **
B. Stored in metal containers only
C. Planted within 24 hours
D. Frozen before shipment
Rationale: California law requires treated seeds to be dyed or colored
to indicate chemical treatment and prevent accidental use.
10. Which of the following is considered a restricted-use pesticide in
seed treatment?
A. Common table salt
B. Chlorpyrifos **
C. Soap solution
D. Vinegar
Rationale: Certain insecticides like chlorpyrifos are restricted-use and
can only be applied by certified applicators.
11. What is the purpose of seed coating polymers?
A. To make seeds heavier
B. To improve pesticide adhesion **
C. To increase germination time
