CPA Study Guide 2026
Everything you need to pass the CPA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CPA Exam Format at a Glance
📚 CPA Topics to Study (69)
✍️ Sample CPA Questions & Answers
1. Under FIFRA, what is the primary reason the EPA classifies a pesticide as a Restricted Use Pesticide (RUP)?
The EPA classifies a pesticide for Restricted Use if it determines that, even when used according to label directions, it may cause unreasonable adverse effects on the environment or injury to the applicator or others. To mitigate this risk, its use is restricted to certified applicators or those under their direct supervision.
2. What information on a pesticide label tells you exactly which PPE is required for the applicator?
The precautionary statements section of the label specifically lists required PPE for handlers, mixers, loaders, and applicators.
3. A wettable powder (WP) differs from a soluble powder (SP) in that a wettable powder:
Wettable powders do not dissolve but form a suspension requiring continuous agitation, unlike soluble powders that dissolve fully.
4. A surfactant molecule has both a hydrophilic (water-attracting) head and a hydrophobic (water-repelling) tail. This dual nature allows surfactants to:
The dual hydrophilic/hydrophobic structure of surfactant molecules lets them sit at the oil-water or wax-water interface, reducing surface tension and improving coverage.
5. Which of the following is an example of a pheromone trap used in pest monitoring?
Delta traps baited with sex-attractant pheromone lures are used to monitor specific moth species by attracting males.
6. When scouting for soybean aphids, a pest manager counts the number of aphids per plant. This practice is called:
Sequential sampling involves counting organisms per sampling unit and stopping when the cumulative count crosses a decision boundary, reducing sampling effort.