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South Carolina Pesticide Applicators Practice
Exam (50 Questions) 2025
- What does the signal word "Danger" on a pesticide label indicate? a. Slight toxicity b. High toxicity c. Moderate toxicity d. No toxicity The signal word "Danger" indicates a highly toxic pesticide and may also include the word "Poison" with skull and crossbones.
- What is the main purpose of the EPA registration number? a. Tells the applicator how to mix the pesticide b. Identifies the specific pesticide product c. Lists ingredients of the pesticide d. Indicates the toxicity level The EPA registration number is a unique number assigned to each registered pesticide product.
- Which formulation is most likely to cause drift? a. Granules b. Wettable powders c. Emulsifiable concentrates d. Aerosols
Aerosols create fine particles that are easily carried by wind.
- What is the best time of day to apply pesticides to reduce drift? a. Midday b. Afternoon c. Early morning or late evening d. At night Early morning or late evening typically has lower wind speeds and temperatures, reducing drift.
- What does REI stand for? a. Restricted Environmental Impact b. Re-entry Environmental Inspection c. Re-entry Interval d. Required Exposure Information REI stands for Re-entry Interval, the time that must pass before reentering a treated area.
- What is the most common route of pesticide entry into the body? a. Oral b. Inhalation c. Dermal d. Ocular Dermal exposure is the most common because pesticides frequently contact the skin.
- What is a characteristic of restricted-use pesticides?
11.Which type of nozzle produces the least amount of drift? a. Hollow cone b. Flat fan low pressure c. Air blast d. Mist blower Flat fan low-pressure nozzles reduce drift by producing larger droplets. 12.How should you store pesticides? a. In a locked cabinet away from food b. In a well-ventilated, locked area c. Near other household chemicals d. On open shelves Proper storage prevents accidental exposure and contamination. 13.What should you do if a pesticide label conflicts with state regulations? a. Follow label only b. Ignore state regulations c. Follow the stricter regulation d. Follow the manufacturer's preference Always follow the more stringent regulation between label and law. 14.What kind of pesticide formulation has dust-like particles? a. Emulsifiable concentrate b. Soluble powder
c. Dust d. Granule Dust formulations consist of fine, dry particles. 15.When mixing pesticides, the best practice is to: a. Mix near waterways b. Use bare hands c. Wear PPE and mix over containment d. Work inside your house Wearing PPE and mixing over a containment area prevents spills and exposure. 16.Drift is most influenced by: a. Soil type b. Wind speed and droplet size c. Time of year d. Container size Wind speed and droplet size determine how far pesticides can move off target. 17.What must every pesticide applicator carry with them? a. Product sample b. Mixing funnel c. Pesticide label d. Spray boom The label contains essential safety and application instructions. 18.Which federal agency regulates pesticide use in the U.S.?
Contaminated clothing should be removed immediately to prevent dermal absorption. 22.Which formulation requires constant agitation? a. Emulsifiable concentrate b. Wettable powder c. Soluble concentrate d. Dust Wettable powders can settle out and need to be constantly mixed. 23.What is the buffer zone? a. Area between application site and sensitive areas b. Storage area c. Place for PPE d. Pesticide mixing zone Buffer zones protect sensitive sites like water bodies or habitats from exposure. 24.What does IPM stand for? a. Insecticide Pesticide Management b. Integrated Pest Management c. Internal Plant Monitoring d. Irrigation and Pesticide Method IPM is an ecological approach combining various pest control methods. 25.The pesticide label is: a. A marketing tool b. A legal document
c. An optional guide d. A local requirement The label is enforceable by law and must be followed exactly. 26.Why is calibration important? a. To save time b. To adjust weather c. To apply the correct pesticide rate d. To monitor drift only Calibration ensures accurate pesticide application for effectiveness and safety. 27.Which PPE item protects your lungs? a. Gloves b. Respirator c. Apron d. Goggles Respirators protect against inhalation of harmful chemicals. 28.What type of gloves should be worn when handling pesticides? a. Cotton b. Chemical-resistant c. Leather d. Wool Only chemical-resistant gloves can protect against pesticide exposure.
c. Herbicide d. Rodenticide Herbicides are designed to control or kill unwanted plants. 33.A pesticide with a skull and crossbones symbol means: a. Highly toxic b. Biodegradable c. Mild irritation d. Organic This symbol indicates a poison with extreme toxicity. 34.What does “selective” mean in pesticide terms? a. Kills all pests b. Targets specific pests c. Only used in labs d. Causes mutations Selective pesticides are designed to harm only certain organisms. 35.What is the best method for preventing pesticide resistance? a. Use one pesticide repeatedly b. Use higher dosages c. Rotate chemical classes d. Spray in wind Rotating pesticides prevents pests from adapting to a single mode of action.
36.What agency manages worker safety under pesticide laws? a. FDA b. USDA c. EPA d. FBI The EPA enforces the Worker Protection Standard (WPS) under FIFRA. 37.What does a “restricted-use” classification mean? a. Used on all crops b. Safe for all ages c. Requires certification to purchase or apply d. Non-toxic Restricted-use pesticides pose risks and require applicator certification. 38.How often must sprayer calibration be checked? a. Once a season b. Only for new equipment c. Regularly and before major applications d. Never Regular calibration ensures accurate application and effectiveness. 39.What’s the best method for backflow prevention? a. Chemical siphon b. Plastic pipe c. Air gap d. Metal tube
a. Hose it off b. Contain, absorb, and clean properly c. Burn it d. Ignore small spills Spills should be cleaned immediately using the proper method to prevent contamination. 44.How often should PPE be inspected? a. Once a year b. Before every use c. Only when damaged d. After use Frequent inspections ensure PPE is functioning properly. 45.What is leaching? a. Pesticide evaporation b. Mixing chemicals c. Movement through soil to water d. Spray bouncing Leaching occurs when pesticides move through soil into groundwater. 46.What is the best way to prevent contamination of water supplies? a. Mix pesticides over soil b. Follow label directions and use buffer zones
c. Apply more water d. Dump in storm drain Proper application and protective zones reduce runoff and contamination. 47.What is the advantage of granular formulations? a. More drift b. Less drift and easy application c. Strong odor d. Requires special PPE Granules are heavier and reduce airborne movement. 48.What is tank mixing? a. Applying pesticides at random b. Using solid pesticides c. Mixing more than one pesticide in a tank d. Heating pesticides Tank mixing combines multiple chemicals for application, often to save time. 49.What is volatilization? a. Pesticide turning into vapor b. Pesticide turning solid c. Rainfall impact d. Drift from nozzles Volatilization is the process of pesticide turning into gas and possibly moving off-target. 50.Which of the following is NOT required on a pesticide label?
