National Pesticide Applicators Certification Core Exam Questions and Answers | Latest Version 2026 | Graded A+

National Pesticide Applicators Certification Core Exam Questions and Answers | Latest Version 2026 | Graded A+ Active Ingredient - answer-the chemical or chemicals in a product responsible for pesticidal activity Activator - answer-An adjuvant added to a pesticide to increase its toxicity Abiotic Factors - answer-related to nonliving elements, such as air pollutants, wind, water, and temperature Absorption - answer-the movement of a chemical into plants, animals, microorganisms, or soil Acaricide - answer-A pesticide used to control mites and ticks. A miticide is a type of acaricide Acidic - answer-Having a pH less than 7 Action Threshold - answer-a predetermined level of pest infestation or damage at which some type of pest management action must be taken Activated Charcoal - answer-a finely ground charcoal that adsorbs chemicals Acute Effects - answer-Illnesses or injuries that occur shortly (within 24hours) after exposure to a pesticide Acute Exposure - answer-an exposure to a single dose of pesticideAcute Toxicity - answer-An injury or illness produced from a single pesticide exposure. Adjuvant - answer-a substance added to a pesticide to improve its effectiveness or safety Adsorption - answer-the process whereby chemicals are held or bound to a surface by physical or chemical attraction Clay and high-organic soils tend to adsorb pesticides Adulterated Pesticide - answer-a pest control product that does not conform to the specified standard or quality documented on its label or labeling Advisory statements - answer-manufacturer recommendations or best management practices for optimal use of a pesticide product. Aerosol - answer-a chemical stored in a container under pressure. An extremely fine mist is produced when the material, dissolved in a liquid, is released into the air Agitation System - answer-A device that stirs or mixes a pesticide product in a sprayer Air-blast sprayer - answer-a type of pesticide application equipment that uses a large volume of air moving at high speed to break up and disperse spray droplets from the nozzle Air-Purifying Respirator (APR) - answer-a safety device that uses filters or sorbents to remove hazardous substances, including pesticides, from the air Algae - answer-relatively simple plants that are photosynthetic and contain chlorophyll Algaecide - answer-a pesticide used to kill or inhibit algae Alkaline - answer-having a pH greater than 7 (also called basic)