Ohio Commercial Pesticide Applicator Core
Exam Questions and Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. What is the primary purpose of pesticide laws and regulations?
A. Increase pesticide sales
B. Eliminate all pests permanently
C. Protect human health and the environment
D. Reduce farming costs
Rationale: Pesticide regulations are designed to ensure pesticides are
used safely to protect people, animals, and the environment.
2. Before using any pesticide, the applicator should always:
A. Mix it immediately
B. Read and understand the label
C. Ask a neighbor
D. Double the recommended rate
,Rationale: The pesticide label contains legally enforceable instructions
for safe and effective use.
3. The pesticide label is considered:
A. A recommendation only
B. Optional guidance
C. A legal document
D. Manufacturer advertising
Rationale: Following label directions is required by law.
4. Which signal word indicates the highest level of acute toxicity?
A. Caution
B. Warning
C. Danger
D. Notice
Rationale: "Danger" is used for highly toxic pesticides.
5. The signal word "Caution" indicates:
A. High toxicity
B. Moderate toxicity
C. Low acute toxicity
D. No toxicity
,Rationale: "Caution" appears on products with relatively low acute
toxicity.
6. PPE stands for:
A. Personal Pesticide Equipment
B. Personal Protective Equipment
C. Protective Pesticide Evaluation
D. Personal Protection Evaluation
Rationale: PPE protects applicators from pesticide exposure.
7. Which route of pesticide exposure is most common for
applicators?
A. Inhalation
B. Ingestion
C. Dermal absorption
D. Eye exposure
Rationale: Most occupational pesticide exposure occurs through the
skin.
8. Which body part absorbs pesticides most rapidly?
A. Forearm
B. Eyes
, C. Back
D. Palm
Rationale: The eyes readily absorb pesticides and require immediate
protection.
9. A pesticide formulation identified as WP is:
A. Water paste
B. Wettable powder
C. Water pellet
D. Water preparation
Rationale: WP stands for Wettable Powder.
10. EC on a pesticide label means:
A. Extra Concentrate
B. Emulsifiable Concentrate
C. Environmental Chemical
D. Emulsion Carrier
Rationale: EC formulations form emulsions when mixed with water.
11. What is the first step when mixing pesticides?
A. Add pesticide first
B. Read the label directions
Exam Questions and Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. What is the primary purpose of pesticide laws and regulations?
A. Increase pesticide sales
B. Eliminate all pests permanently
C. Protect human health and the environment
D. Reduce farming costs
Rationale: Pesticide regulations are designed to ensure pesticides are
used safely to protect people, animals, and the environment.
2. Before using any pesticide, the applicator should always:
A. Mix it immediately
B. Read and understand the label
C. Ask a neighbor
D. Double the recommended rate
,Rationale: The pesticide label contains legally enforceable instructions
for safe and effective use.
3. The pesticide label is considered:
A. A recommendation only
B. Optional guidance
C. A legal document
D. Manufacturer advertising
Rationale: Following label directions is required by law.
4. Which signal word indicates the highest level of acute toxicity?
A. Caution
B. Warning
C. Danger
D. Notice
Rationale: "Danger" is used for highly toxic pesticides.
5. The signal word "Caution" indicates:
A. High toxicity
B. Moderate toxicity
C. Low acute toxicity
D. No toxicity
,Rationale: "Caution" appears on products with relatively low acute
toxicity.
6. PPE stands for:
A. Personal Pesticide Equipment
B. Personal Protective Equipment
C. Protective Pesticide Evaluation
D. Personal Protection Evaluation
Rationale: PPE protects applicators from pesticide exposure.
7. Which route of pesticide exposure is most common for
applicators?
A. Inhalation
B. Ingestion
C. Dermal absorption
D. Eye exposure
Rationale: Most occupational pesticide exposure occurs through the
skin.
8. Which body part absorbs pesticides most rapidly?
A. Forearm
B. Eyes
, C. Back
D. Palm
Rationale: The eyes readily absorb pesticides and require immediate
protection.
9. A pesticide formulation identified as WP is:
A. Water paste
B. Wettable powder
C. Water pellet
D. Water preparation
Rationale: WP stands for Wettable Powder.
10. EC on a pesticide label means:
A. Extra Concentrate
B. Emulsifiable Concentrate
C. Environmental Chemical
D. Emulsion Carrier
Rationale: EC formulations form emulsions when mixed with water.
11. What is the first step when mixing pesticides?
A. Add pesticide first
B. Read the label directions
