Private Pesticide Exam Prep Free practice test →

Free Private Pesticide Practice Questions

10 free, exam-style Private Pesticide Applicator (Private Pesticide) practice questions with answers and explanations. No signup required. Work through them below, then take the full free Private Pesticide practice test to study every exam domain.

Question 1

Two products sit on the shelf. Product A has an oral LD50 of 5 mg/kg; Product B has an oral LD50 of 850 mg/kg. Which statement is correct?

  1. Product B is the more toxic of the two here, because a higher LD50 number always means a larger and more hazardous lethal dose
  2. Product A is more toxic, because a lower LD50 means less is needed to be lethal
  3. The two products are equally toxic, because the LD50 value only reflects skin (dermal) exposure and never oral hazard
  4. Product A is the safer pick, since an LD50 under 50 mg/kg is practically nontoxic
Show answer & explanation

Correct answer: B - Product A is more toxic, because a lower LD50 means less is needed to be lethal

Question 2

A label shows the signal word DANGER but does NOT show the word POISON or a skull-and-crossbones symbol. What does this most likely tell you about the product?

  1. It is highly toxic if swallowed, with an oral LD50 of 50 mg/kg or less
  2. The word was printed in error and the product is really a low-toxicity Category III material
  3. It can cause severe corrosive damage to the skin or eyes, rather than necessarily being highly toxic if swallowed or inhaled
  4. It is automatically restricted use and requires a respirator for every use
Show answer & explanation

Correct answer: C - It can cause severe corrosive damage to the skin or eyes, rather than necessarily being highly toxic if swallowed or inhaled

Question 3

Using the calibration formula GPM = (GPA × MPH × W) ÷ 5940, what nozzle output (gallons per minute) is needed to apply 20 GPA at 5 MPH with nozzles spaced 20 inches apart on the boom?

  1. 0.34 GPM
  2. 0.51 GPM
  3. 0.17 GPM
  4. 1.68 GPM
Show answer & explanation

Correct answer: A - 0.34 GPM

Question 4

Which route of exposure accounts for the GREATEST number of pesticide exposures among applicators during mixing, loading, and application?

  1. Inhalation, because fine spray droplets and chemical vapors are almost always suspended in the air around the applicator
  2. Oral, because applicators frequently eat, drink, or smoke during the day without first washing their hands thoroughly
  3. Dermal, because the skin contacts splashes, drift, and treated surfaces
  4. Ocular, because the eyes absorb pesticides faster than any other part of the body
Show answer & explanation

Correct answer: C - Dermal, because the skin contacts splashes, drift, and treated surfaces

Question 5

A label lists a restricted-entry interval (REI) of 48 hours and a preharvest interval (PHI) of 7 days for the same crop. What do these two intervals require?

  1. Workers must wait the full 48 hours before they are allowed to harvest the crop, and then a further 7 days before re-entering the field
  2. Both intervals begin only after the crop has already been harvested and removed from the field
  3. No one may re-enter the treated area for 48 hours; the crop may not be harvested for 7 days
  4. The applicator may simply follow whichever of the two intervals happens to be shorter
Show answer & explanation

Correct answer: C - No one may re-enter the treated area for 48 hours; the crop may not be harvested for 7 days

Question 6

A farmer applies a restricted use pesticide to a neighbor's cornfield. No money changes hands - in return, the neighbor helps the farmer bale hay. For this application, the farmer is acting as which type of applicator?

  1. A commercial applicator, because the restricted use pesticide was applied on a parcel of land the farmer does not own or rent
  2. A private applicator, because the work was a trade of personal services between two agricultural producers
  3. A noncertified applicator, because work on a neighbor's land always requires on-site direct supervision
  4. A commercial applicator, because any application that benefits another person counts as a for-hire service
Show answer & explanation

Correct answer: B - A private applicator, because the work was a trade of personal services between two agricultural producers

Question 7

On a still, cool morning an applicator notices smoke from a nearby fire hanging low and drifting sideways across the field. Why is this condition especially risky for spraying?

  1. The calm, windless air guarantees the spray will settle straight down with no off-target drift
  2. A temperature inversion can trap fine spray droplets in a layer of cool air near the ground and move them well off-target
  3. The high morning humidity will make the spray solution evaporate before it reaches the pest
  4. Cool temperatures always increase the volatility of the pesticide being applied
Show answer & explanation

Correct answer: B - A temperature inversion can trap fine spray droplets in a layer of cool air near the ground and move them well off-target

Question 8

An applicator is spraying with a wettable powder (WP) formulation mixed in a tank. Which statement about this formulation is correct?

  1. It dissolves completely into a true solution in water, so the tank needs no agitation at all once it is mixed
  2. It forms a suspension of fine solid particles and requires continuous agitation
  3. It is a ready-to-use liquid that should never be diluted with water before being sprayed on the target
  4. It carries the lowest inhalation hazard of any formulation while being measured and mixed
Show answer & explanation

Correct answer: B - It forms a suspension of fine solid particles and requires continuous agitation

Question 9

A certified private applicator wants a younger worker to apply a restricted use pesticide (non-fumigant) under direct supervision. Under the federal minimum standards, what is the minimum age for that worker?

  1. 16 in all situations, as long as a certified applicator is supervising the work as it is carried out
  2. 18, with no exceptions of any kind permitted under the federal rule for any restricted use pesticide
  3. 18, except a 16-year-old may apply on a family farm under an immediate family member's supervision
  4. There is no federal minimum age at all once the worker has completed an approved safety training
Show answer & explanation

Correct answer: C - 18, except a 16-year-old may apply on a family farm under an immediate family member's supervision

Question 10

A worker has swallowed a pesticide and is conscious and alert. What is the correct guidance on inducing vomiting?

  1. Always induce vomiting immediately, in order to remove as much of the swallowed pesticide from the stomach as quickly as possible
  2. Induce vomiting only if the product swallowed was an emulsifiable concentrate
  3. Never induce vomiting, because it is harmful in every pesticide poisoning case
  4. Induce vomiting only if the label's first aid statement directs you to for that product
Show answer & explanation

Correct answer: D - Induce vomiting only if the label's first aid statement directs you to for that product

Ready for the real thing?

Practice hundreds more Private Pesticide questions with instant scoring, weak-area drills, and full exam simulations.

Start the free practice test See pricing