PESTICIDE APPLICATOR EXAM PREP GUIDE: BOLD-FACED
QUESTIONS, WITH VERIFIED ANSWERS, AND FULL
EXPLANATIONS FOR EVERY CORE TOPIC TESTED ON FIFRA,
WPS, TOXICOLOGY, EQUIPMENT, ENVIRONMENT, AND IPM.
1. What is the primary purpose of the pesticide label?
A. To advertise the pesticide
B. To provide legal directions for safe and effective use
C. To list competing products
D. To explain how the pesticide was manufactured
Answer: B
Rationale: The label is a legally enforceable document approved by the
EPA; all applicators must follow its instructions.
2. Which federal law primarily regulates the registration, sale,
distribution, and use of pesticides in the U.S.?
A. Clean Water Act
B. Occupational Safety and Health Act
C. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
D. Endangered Species Act
Answer: C
Rationale: FIFRA is the core federal statute that governs pesticide
registration, distribution, sale, and use.
3. What does FIFRA stand for?
A. Federal Integrated Farm and Ranch Act
B. Food Inspection and Federal Registration Act
,C. Federal Insecticide, Fungicide, and Rodenticide Act
D. Fungicide, Insecticide, and Rodenticide Federal Act
Answer: C
Rationale: FIFRA is the Federal Insecticide, Fungicide, and Rodenticide
Act.
4. Which of the following is considered a "restricted-use" pesticide?
A. Any pesticide sold over-the-counter at a garden center
B. A pesticide that may cause unreasonable adverse effects without
special restrictions
C. A pesticide that is only used in organic farming
D. Any pesticide with a Caution signal word
Answer: B
Rationale: Restricted-use pesticides are those deemed to pose risks
that require special certification and training to apply.
5. Who has the authority to classify a pesticide as restricted-use?
A. The state department of agriculture
B. The local county commissioner
C. The EPA Administrator
D. The pesticide manufacturer
Answer: C
Rationale: The EPA Administrator has the sole authority to classify
pesticides as general or restricted-use under FIFRA.
6. What signal word indicates the highest level of acute toxicity?
A. Caution
B. Warning
C. Danger – Poison
D. Notice
,Answer: C
Rationale: "Danger – Poison" with skull-and-crossbones is used for
Category I, the most acutely toxic pesticides.
7. Which signal word is associated with the lowest level of acute
toxicity?
A. Caution
B. Warning
C. Danger
D. Hazard
Answer: A
Rationale: "Caution" indicates Category III or IV – the lowest acute
toxicity.
8. What is the meaning of the signal word "Warning"?
A. Slightly toxic – Category IV
B. Moderately toxic – Category II
C. Highly toxic – Category I
D. Non-toxic
Answer: B
Rationale: "Warning" corresponds to moderately toxic (Category II).
9. Where on the pesticide label must the signal word appear?
A. Only on the back panel
B. On the front panel, usually near the product name
C. Only in the small print at the bottom
D. It is optional for all products
Answer: B
Rationale: The signal word must appear prominently on the front panel
of the label.
, 10. What does the LD50 value measure?
A. The lethal dose that kills 50% of a test population
B. The effective dose that controls 50% of pests
C. The dispersal rate of a pesticide in water
D. The half-life of a pesticide in soil
Answer: A
Rationale: LD50 is a standard measure of acute toxicity – the dose
required to kill half the test animals.
11. A pesticide with an oral LD50 of 5 mg/kg would likely bear which
signal word?
A. Caution
B. Warning
C. Danger – Poison
D. No signal word required
Answer: C
Rationale: An LD50 of 5 mg/kg falls into Category I (highly toxic),
requiring "Danger – Poison."
12. The statement "Keep out of reach of children" on a label is
required by:
A. State law only
B. FIFRA
C. The Consumer Product Safety Act
D. Voluntary industry guidelines
Answer: B
Rationale: FIFRA mandates that all pesticide labels include the "Keep
out of reach of children" statement.
QUESTIONS, WITH VERIFIED ANSWERS, AND FULL
EXPLANATIONS FOR EVERY CORE TOPIC TESTED ON FIFRA,
WPS, TOXICOLOGY, EQUIPMENT, ENVIRONMENT, AND IPM.
1. What is the primary purpose of the pesticide label?
A. To advertise the pesticide
B. To provide legal directions for safe and effective use
C. To list competing products
D. To explain how the pesticide was manufactured
Answer: B
Rationale: The label is a legally enforceable document approved by the
EPA; all applicators must follow its instructions.
2. Which federal law primarily regulates the registration, sale,
distribution, and use of pesticides in the U.S.?
A. Clean Water Act
B. Occupational Safety and Health Act
C. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
D. Endangered Species Act
Answer: C
Rationale: FIFRA is the core federal statute that governs pesticide
registration, distribution, sale, and use.
3. What does FIFRA stand for?
A. Federal Integrated Farm and Ranch Act
B. Food Inspection and Federal Registration Act
,C. Federal Insecticide, Fungicide, and Rodenticide Act
D. Fungicide, Insecticide, and Rodenticide Federal Act
Answer: C
Rationale: FIFRA is the Federal Insecticide, Fungicide, and Rodenticide
Act.
4. Which of the following is considered a "restricted-use" pesticide?
A. Any pesticide sold over-the-counter at a garden center
B. A pesticide that may cause unreasonable adverse effects without
special restrictions
C. A pesticide that is only used in organic farming
D. Any pesticide with a Caution signal word
Answer: B
Rationale: Restricted-use pesticides are those deemed to pose risks
that require special certification and training to apply.
5. Who has the authority to classify a pesticide as restricted-use?
A. The state department of agriculture
B. The local county commissioner
C. The EPA Administrator
D. The pesticide manufacturer
Answer: C
Rationale: The EPA Administrator has the sole authority to classify
pesticides as general or restricted-use under FIFRA.
6. What signal word indicates the highest level of acute toxicity?
A. Caution
B. Warning
C. Danger – Poison
D. Notice
,Answer: C
Rationale: "Danger – Poison" with skull-and-crossbones is used for
Category I, the most acutely toxic pesticides.
7. Which signal word is associated with the lowest level of acute
toxicity?
A. Caution
B. Warning
C. Danger
D. Hazard
Answer: A
Rationale: "Caution" indicates Category III or IV – the lowest acute
toxicity.
8. What is the meaning of the signal word "Warning"?
A. Slightly toxic – Category IV
B. Moderately toxic – Category II
C. Highly toxic – Category I
D. Non-toxic
Answer: B
Rationale: "Warning" corresponds to moderately toxic (Category II).
9. Where on the pesticide label must the signal word appear?
A. Only on the back panel
B. On the front panel, usually near the product name
C. Only in the small print at the bottom
D. It is optional for all products
Answer: B
Rationale: The signal word must appear prominently on the front panel
of the label.
, 10. What does the LD50 value measure?
A. The lethal dose that kills 50% of a test population
B. The effective dose that controls 50% of pests
C. The dispersal rate of a pesticide in water
D. The half-life of a pesticide in soil
Answer: A
Rationale: LD50 is a standard measure of acute toxicity – the dose
required to kill half the test animals.
11. A pesticide with an oral LD50 of 5 mg/kg would likely bear which
signal word?
A. Caution
B. Warning
C. Danger – Poison
D. No signal word required
Answer: C
Rationale: An LD50 of 5 mg/kg falls into Category I (highly toxic),
requiring "Danger – Poison."
12. The statement "Keep out of reach of children" on a label is
required by:
A. State law only
B. FIFRA
C. The Consumer Product Safety Act
D. Voluntary industry guidelines
Answer: B
Rationale: FIFRA mandates that all pesticide labels include the "Keep
out of reach of children" statement.
