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National Pesticide Applicator Certification Core Manual Practice Exam Questions and Answers 2026 (Verified Answers)

EXAMS AND CERTIFICATIONS Mar 18, 2024

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National Pesticide Applicator Certification Core Manual Practice Exam Questions and Answers 2026 (Verified Answers)

Breeding or selecting plants and animals with characteristics for resistance to pests is an example of which type of pest management method? A. Biological control. B. Mechanical control. C. Genetic Co

Using a plow to destry weeeds is an example of which type of mechanical control method? A. Exclusion. B. Trapping. C. Cultivation. D. Physical/ environmental modification.

Which statement is true about chemical control as a pest management method? A. Pesticides play a key role in pest management programs and sometimes are the only control method available. B. Pesticides

Which statement is true about pest management goals? A. Pestcides are never used to prevent pests. B. Preventive and suppressive pest control goals are rarely combined. C. Cultiviation and mowing of w

Which term describes the pest population density that causes the losses equal to the cost of control measures? A. Economic threshold. B. Economic injury level. C. Action threshold. D. Pest threshold.

Which would decrease the likelihood of pesticide resistance? A. Increasing label dosages. B. Using pesticides from the same class of chemicals. C. Applying the pesticide over a wide area. D. Using pes

Which federal law requires employers to provide agricultural workers and pesticide handlers with protections against possible harm form pesticides? A. Federal Insecticide, Fungicide, and Rodenticide A

What are the two main classifications of pesticides under FIFRA? A. Organic and inorganic. B. General-use and unclassified use. C. Regulated and unregulated. D. Unclassified use and restricted-use

What is a tolerance as set by the EPA? A. The maximum amount of pesticides residue that may legally remain on or in a commodity at the time of harvest or slaughter. B. The maximum amount of pesticide

Which of the following section sections under FIFRA could be used to alow the use of an unregistered pesticide to control an "emergency" pest problem? A. Section 3 B. Section 18 C. Section 24 (c) D. S

The name "VIP No Pest 75WP" on a pesticide label indicates: A. The chemical name and 75 percent inert ingredients formulated as a wettable powder. B. The brand name and 25 percent active ingredients,

Which signal word appears on a label with a skull and crossbones symbol? A. DANGER-POISON. B. DANGER C. WARNING D. CAUTION

Which statement is true about protective clothing and equipment statements? A. Pesticide labels are very consistent in the type of information they contain on protective clothing and equipment. B. Whe

"This product is highly toxic to bees" is an example of which type of precautionary statement? A. Acute toxicity hazard. B. Environmental hazard. C. Physical or chemical hazard. D. Agricultural use re

Which is true about REIs (restricted-entry intervals)? A. The pesticide manufacturer sets REIs B. The REI statement is most often listed under "Non-agricultural use requirements." C. REIs are not cove

How much active ingredient is there in a 20-pound bag of Atrazine 90DF? A. 4 pounds. B. 9 pounds. C. 18 pounds. D. 20 pounds.

What type of pesticide formulation consists of a liquid dispersed as droplets in another liquid and may require agitiation? A. Microencapsulated. B. Solution. C. Suspension. D. Emulsion.

Which liquid pesticide formulation contains solid particles that do not dissolve in either water or oil and may contribute to abrasive wear of nozzles and pumps? A. Ultra-low volume (ULV). B. Invert e

Which dry/solid formulation requires constant agitation and may be abrasive to pumps and nozzles and cause them to wear out quickly? A. Dusts (D) B. Granules (G) C. Wettable powders (WP) D. Soluble po

Which type of dry/solid pesticide formulation is always dry and can easily drift to non-target sites? A. Dusts. B. Granules. C. Pellets. D. Baits.

What type of formulation covers either a liquid or dry pesticide particle with platic? A. Pellets. B. Microencapsulates. C. Water-soluble packets. D. Water-dispersible granules.

Which statement is true about adjuvants? A. They posses pesticidal activity. B. They must be registered by the U.S. Environmental Protection Agency. C. Adjuvants often increase spray application probl

Which type of adjuvant increases the adhesion of solid particles to target surfaces? A. Compatibility agents. B. Stickers C. Drift retardants. D. Defoaming agents.

Which equation reflects the relationship between pesticide safety concerns? A. Hazard=toxicity x exposure. B. Toxicity=hazard x exposure. C. Exposure= hazard x toxicity. D. Hazard=exposure x risk

Which statement is true about the LD50 and LC50? A. The LD50 and LC50 measure multiple toxic effects. B. The LD50 and LC50 translate directly to humans. C. The LD50 and LC50 measure the potential buil

Which signal word is associated with Hazard Class III (i.e, small to medium dose could cause death, illness, or skin, eye, or respiratory damage) and must have the Spanish word "Aviso" on the label? A

What should be done if cholinesterase levels fall significantly below baseline? A. Have the pesticide handler increase the use of personal protective equipment until the cholinesterase level builds ba

What would be the first objective if dermal exposure to a pesticide has occured? A. Get the victim to fresh air immediately. B. Administer artificial respiration. C. Rinse the pesticide off to prevent

Which statement is true about inducing vomiting for a victim of oral pesticide exposure? A. Always induce vomiting after a victim has swallowed a pesticide. B. Induce vomiting with the victim lying fl

What type of PPE should you wear during an application if large amounts of a pesticide could be deposited on your clothing over an extended period of time? A. A coverall made of a cottonsynthetic blen

Which is the appropriate way to wear gloves and footwear for a job in which you will be working with your arms raised some of the time and lowered some of the time? A. Wear gloves with your sleeves ov

Which statement is true about respiratory protection? A. Air-purifying respirators supply additional oxygen. B. All respirators are approved by the EPA. C. Filters are classified on the basis of oil d

Which statement is true about replacing reusable PPE? A. Reusable items need to be replaced only at the end of the work season. B. Gloves generally last longer than footwear, aprons, headgear, and pro

What should you do with clothing made of cotton or polyester that has been heavily contaminated with pesticides labeled with the signal word DANGER-POISON, DANGER, OR WARNING? A. Discard such items in

Which practice would help prevent groundwater or surface water contamination? A. Eliminate grass strips that are between treated fields and streams. B. Store and mix herbicides around abandoned wells.

Which statement is true about factors affecting spray drift? A. Ground applications usually produce more spray drift than aerial appplications. B. High rates of evaporation and high temperatures reduc

Which statement is true about pesticide effects on non-target organisms? A. Dirft is one of the primary causes of damage to crops and other plants in adjacent areas. B. Granular or pellleted pesticide

Which items should be stored at the pesticide storage site? A. Food and feed. B. PPE for mixing and loading and medical supplies. C. Spill cleanup kit and emergency PPE. D. Medication and veterinary s

Which statement is true about storage of pesticide containers? A. You may store pesticides in bottles or jars as long as they are appropriately labeled. B. Keep bags of wettable and soluble powders op

What should be done with cancelled pesticide products that can no longer be legally used? A. Use them up by applying them at a rate greater than specified by the label. B. Store them in the same area

Which statement is true about potential problems from pesticide fires? A. Pesticides containing oils or petroleum products are the least flammable. B. Vapors or smoke from pesticide fires may be harmf

Which is not recommended safety precaution for a pesticide storage facility? A. Locate storage facilities as far as possible from places where people and animals live. B. Post signs that indicate comb

Which statement is true about chemical incompatibility? A. It is not necessary to consider chemical compatibility effects when mixing a pesticide with hard water, chlorinated water, or fertilizers. B.

Which is not a means of preventing contamination of water sources? A. When filling the tank, keep the hose down in the pesticide mixture. B. Use a check valve, anti-siphoning device, or backflow preve

Which statement is true about cleaning pesticide equipment? A. Always wash equipment in the same locations unless you use a containment pad or tray. B. There is very little risk of pesticide exposure

Which type of pesticide application procedures would you use to apply a herbicide between the rows of crops? A. Broadcast application. B. Band appliation. C. Crack and crevice application. D. Foliar a

You are applying pesticide to a rectangular area that is 50 feet long by 20 feet wide. What is the area in square feet? A. 70 square feet B. 100 square feet C. 500 square feet D. 1,000 square feet

You determined from a calibration test that your boom sprayer delivers 8 galoons of water over a 0.25-acre (1/4 acre) test area. You need to apply pesticide to a 10-acre field. How much spray mixture

From your calibration test, you determine that your backpack sprayer delivers 0.25 gallon of water to cover a 250-square-foot test area. The label recommends applying pesticide at a rate of 6 ounces o

Which would likely be an inappropriate way to explain a pest control procedure to the customer? A. Telling the customer what you are spraying for and also showing him the problem. B. Assuring the cust

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