10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free NJ-PEST questions are organized by exam domain, so you can see how each part of the New Jersey Commercial Pesticide Applicator Core Exam blueprint is tested. Reveal the answer and explanation under each question.
A pesticide's acute-toxicity data show oral LD50 900 mg/kg, dermal LD50 4,500 mg/kg, inhalation LC50 8 mg/L, no skin irritation, and corneal opacity still present at 7 days. Which front-panel hazard marking is required?
Correct answer: B - DANGER, without POISON or skull-and-crossbones for eye-only Category I toxicity
A New Jersey applicator with the required category holds a registered corn insecticide. The labeling lists corn as the site, does not name fall armyworm, and does not limit use to listed pests. The proposed rate and method are allowed, and every other labeling condition can be met. Under FIFRA §2(ee), which course may be lawful?
Correct answer: D - Treat fall armyworm on corn and follow all other labeling
A label permits 1 to 2 pt/acre per application, requires 14 days between treatments, sets a 5 pt/acre seasonal maximum, and has a 7-day preharvest interval (PHI). A field received 2 pt/acre on May 1 and 1.5 pt/acre on May 20. On June 5, treatment is still justified, but harvest is scheduled for June 10. Which plan complies?
Correct answer: A - With a June 10 harvest, do not apply; after delaying harvest to satisfy the PHI, at most 1.5 pt/acre remains
Minutes after a concentrate splashes across his sleeves, an applicator develops pinpoint pupils, profuse salivation, muscle twitching, and difficulty breathing. A cholinesterase-inhibiting insecticide was being mixed. Which response has priority?
Correct answer: C - Stop exposure, decontaminate, call 911, and send the pesticide label
An agricultural handler first put separable cotton glove liners under chemical-resistant gloves at 7:00 a.m. Monday. They were used for six total hours, had no direct pesticide contact, and are considered again at 8:00 a.m. Tuesday. What should be done under the Worker Protection Standard?
Correct answer: D - Discard them; 24 hours since first use has already elapsed
A liquid pesticide container tips over beside a loading pad, and product is flowing toward an open storm drain. Bystanders have been moved away and the responder is wearing the required PPE. What should happen next?
Correct answer: A - Stop the leak if safe, then dike the spill and block the drain
For outdoor mixing, a label requires coveralls, chemical-resistant gloves, and protective eyewear; it does not require a respirator. On a hot day, a crew leader proposes adding an encapsulating suit and vapor respirator "for maximum protection." No extra inhalation hazard has been identified. Which plan is most appropriate?
Correct answer: B - Use label PPE and manage heat with breaks, shade, and hydration
A persistent pesticide binds strongly to soil. It is applied to bare, compacted clay on a sloping field; intense rain arrives before vegetation can slow the water. Which off-target pathway is most likely to dominate?
Correct answer: C - Runoff and erosion carrying sediment-bound pesticide
A residue model assumes a 6-day half-life and first-order decline. If 64 ounces are present immediately after application, which conclusion is supported 18 days later?
Correct answer: A - About 8 ounces remain; the pesticide is not necessarily gone
A pheromone trap in an orchard captures the first adult moth of the season, but no action threshold has been reached and scouting finds no damaging larval population. How should the catch be interpreted?
Correct answer: B - It indicates adult presence and flight timing; continue threshold-based monitoring
The NJ-PEST exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more NJ-PEST questions with explanations.
Continue in the free practice test →
View plans