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Practice Test 5 (50 questions)

Answer all 50, then check your score. Aim for 70% or higher.

1. Mixing and loading pesticides repeatedly at the same spot near a well can create:

Answer: C. Repeated spills and rinsing at one location concentrate contamination, a point source.

2. A defoliant:

Answer: A. Defoliants cause leaves to drop, often to aid mechanical harvest.

3. Fumigants are pesticides that:

Answer: C. Fumigants form toxic gases. Many are restricted-use and require additional certification.

4. If a pesticide fire occurs, you should:

Answer: B. Firefighters need to know about pesticides to choose tactics and PPE. Runoff from firefighting water can also be hazardous.

5. A fungicide applied before a disease appears to protect a plant is called a:

Answer: D. Protectant fungicides work best before infection occurs. Some systemic fungicides have curative activity.

6. Why should application records be made promptly?

Answer: A. Records document what, where, when, how much, and by whom, and are often legally required.

7. Which formulation is designed to be mixed with oil or applied in very small amounts per acre with special equipment?

Answer: A. ULV formulations are applied in very small volumes with specialized equipment. They often contain high concentrations of active ingredient.

8. Under the federal rule, applicator certification must be renewed (recertified) at intervals of no more than:

Answer: D. 40 CFR 171 limits recertification intervals to no more than 5 years. Many states require renewal more often.

9. Indoor applications can move off target through:

Answer: D. Air handling systems can carry vapors and fine particles. Follow label directions about ventilation.

10. Why should you avoid applying pesticides to saturated soil or just before heavy rain is expected?

Answer: B. Wet soils and heavy rain move pesticides off target.

11. A label says "For retail sale to and use only by Certified Applicators or persons under their direct supervision." This statement indicates:

Answer: C. That statement appears on restricted-use pesticide labels.

12. A calibration check shows the sprayer applies 25 gallons per acre, but you intended 20 gallons per acre. The error is:

Answer: B. (25 - 20) / 20 = 25% over-application. Adjust the equipment and recheck.

13. Which pump type is common on small sprayers and handles abrasive formulations well?

Answer: C. Diaphragm pumps resist abrasion from wettable powders and are common on smaller sprayers.

14. A supervisor learns a noncertified employee hasn't been trained in over a year. The supervisor should:

Answer: B. Current qualifying training is required before RUP use under supervision.

15. A pesticide "device" (such as certain traps or UV light units) under FIFRA:

Answer: C. Devices are subject to FIFRA labeling and misbranding provisions but aren't registered like pesticide products.

16. If you change from water to a thicker carrier or add a product that changes viscosity, you should:

Answer: B. Viscosity changes can alter nozzle output.

17. Before an application, the applicator should check the weather forecast because:

Answer: D. Weather affects both effectiveness and off-target movement.

18. Physical incompatibility in a tank mix may show up as:

Answer: D. Physical incompatibility causes lumps or layers that clog equipment and give uneven application.

19. The WPS requires employers to display pesticide safety information and application information at a:

Answer: D. The WPS requires a central display of safety information and application details.

20. Before re-entering a treated area without PPE, workers must wait until:

Answer: D. The REI on the label controls entry. Early entry requires specific PPE and conditions under the WPS.

21. Using pesticides in or near water may require:

Answer: C. Applications to, over, or near water can trigger NPDES permit requirements in addition to label directions.

22. Rodents, birds, and other vertebrates that become pests are managed with:

Answer: A. Vertebrate management combines exclusion and habitat modification with legal control methods.

23. Professionalism in pesticide application includes:

Answer: C. Professionalism combines legal compliance, safety, honest communication, and continuing education.

24. The Federal Food, Drug, and Cosmetic Act (FFDCA) is important to applicators because:

Answer: B. Under the FFDCA, the EPA sets tolerances. Food with residues above tolerance is adulterated.

25. When a pesticide is splashed in the eye while wearing goggles, first aid involves:

Answer: B. Flush immediately and thoroughly, then seek medical attention as the label directs.

26. Why should an applicator inspect the site before applying?

Answer: A. A site inspection supports safe, legal, effective applications.

27. Plant diseases are caused by:

Answer: A. Diseases may be biotic (pathogens) or abiotic (for example, nutrient deficiency or chemical injury). Correct diagnosis guides treatment.

28. Which of the following is NOT typically found on a pesticide label?

Answer: B. Prices aren't part of required labeling.

29. The best time to apply a bee-toxic product to a field bordered by blooming weeds is:

Answer: B. Minimize bee exposure by timing and by removing attractive blooms, as the label directs.

30. Transporting large quantities of certain pesticides on public roads may require compliance with:

Answer: C. The Department of Transportation regulates hazardous materials shipments, including placarding and shipping papers when thresholds are met.

31. Rope-wick or wiper applicators are designed to:

Answer: A. Wiper applicators place herbicide directly on weeds with minimal drift.

32. To protect surface water from runoff, an applicator can:

Answer: D. Buffers, timing, and following setbacks reduce runoff.

33. A sprayer travels 220 feet in 30 seconds. What is the speed? (1 mph = 88 feet per minute)

Answer: A. 220 ft in 30 s = 440 ft per minute. 440 / 88 = 5 mph.

34. Net contents on a label indicates:

Answer: B. Net contents is the total weight or volume of product in the container.

35. Why should you look for pest signs such as droppings, frass, webbing, or damage patterns?

Answer: C. Signs and damage patterns help confirm identification and guide control decisions.

36. If a label prohibits use by noncertified applicators, then:

Answer: C. Label restrictions against noncertified use must be followed. Only a certified applicator may apply.

37. Which part of the label tells you the maximum amount of product you may apply per season?

Answer: A. Rate limits, maximum seasonal amounts, and application intervals appear in the directions for use and use restrictions.

38. Which clothing is the minimum starting point for most pesticide applications?

Answer: A. Labels typically require at least long sleeves, long pants, and shoes plus socks, with chemical-resistant items added as specified.

39. Eyewear such as goggles or a face shield is especially important when:

Answer: C. Splashes during mixing and loading are a major cause of eye exposure.

40. Organophosphate and carbamate insecticides can cause poisoning by:

Answer: C. These classes inhibit cholinesterase, causing symptoms such as excess salivation, sweating, pinpoint pupils, and muscle twitching.

41. Contact lenses when handling pesticides:

Answer: A. Contact lenses can hold chemicals against the eye. First aid directions often say to remove them after the first few minutes of flushing.

42. A label calls for 0.5 lb of product per acre. How much product is needed for a 12-acre field?

Answer: B. 0.5 lb x 12 acres = 6 lb.

43. Reusable chemical-resistant gloves should be:

Answer: C. Wash gloves before removing them so your bare hands don't touch contaminated surfaces.

44. The ingredient statement on a label lists:

Answer: A. The ingredient statement names each active ingredient with its percentage and lists "other" (inert) ingredients as a total percentage.

45. Planting a crop variety bred to tolerate a disease is an example of:

Answer: D. Resistant varieties are a key IPM tool and reduce the need for pesticides.

46. Flowable or suspension concentrate (F or SC) formulations:

Answer: D. Flowables combine wettable-powder-type particles in a liquid concentrate and usually need agitation.

47. Pesticides can harm fish and aquatic invertebrates through:

Answer: A. Any route that moves pesticide into water can harm aquatic life. Follow label buffers and hazard statements.

48. Which practice reflects good product stewardship?

Answer: C. Stewardship reduces waste, storage risk, and disposal problems.

49. Before loading or mixing, you should read the label to learn:

Answer: C. Read the label every time. Formulations and directions can change.

50. A pesticide that isn't classified as either restricted or general use is:

Answer: D. Products may be classified as general use or restricted use, or may remain unclassified.
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