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Pesticide Label Practice Questions (Free, with Answers)

10 free practice questions on label and labeling comprehension for the pesticide applicator core exam: signal words, the EPA Reg. No., REIs and PHIs, mandatory vs. advisory wording, and restricted-use labeling. Every question has an explanation. These are original questions written from the federal core standard, not actual exam items.

1. Which signal word indicates the highest acute toxicity to humans when taken orally?

Answer: B. DANGER-POISON (plus the skull and crossbones and PELIGRO) marks the most acutely toxic products, Toxicity Category I by oral, dermal, or inhalation route.

2. A label statement uses the word "should" (for example, "Applicators should avoid spraying near blooming plants"). This language is:

Answer: A. "Should" and "recommended" are advisory. Mandatory language uses words like "must," "shall," and "do not."

3. What does the EPA Registration Number on a label identify?

Answer: B. The EPA Reg. No. identifies the registered product. The EPA Establishment Number identifies the facility where it was produced.

4. Which statement must appear on essentially every pesticide label?

Answer: A. "Keep Out of Reach of Children" is a required precautionary statement on pesticide labels.

5. "Labeling" includes:

Answer: A. Labeling covers the attached label and all associated written material, such as supplemental labels and referenced bulletins.

6. Using a pesticide in a manner inconsistent with its labeling is:

Answer: C. FIFRA makes it unlawful to use a registered pesticide in a manner inconsistent with its labeling.

7. On a label, the restricted-entry interval (REI) tells you:

Answer: D. The REI is the time after application during which entry to the treated area is restricted. It is listed with Worker Protection Standard requirements on agricultural-use labels.

8. A product labeled "RESTRICTED USE PESTICIDE" may be purchased and used only by:

Answer: A. Restricted-use products can be used only by certified applicators or by noncertified applicators working under a certified applicator's direct supervision, as the label and rules allow.

9. The pre-harvest interval (PHI) is the minimum time between:

Answer: C. The PHI is the minimum number of days between the last application and harvest, so residues stay within legal tolerances.

10. Where on a label would you look to learn which sites and pests a product may legally be used on?

Answer: D. Directions for use list the target pests, application sites, rates, timing, and methods allowed.
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