CIT Study Guide 2026
Everything you need to pass the CIT 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.
📋 CIT Exam Format at a Glance
📚 CIT Topics to Study (53)
✍️ Sample CIT Questions & Answers
1. What is the typical flow rate range for a standard drip emitter?
Standard drip emitters flow at 0.5–2 gallons per hour (GPH), delivering water very slowly to minimize runoff and maximize absorption.
2. What is the purpose of a master valve in an irrigation system?
A master valve is installed on the mainline and is controlled by the controller's master valve circuit. It opens only when the controller activates a zone, ensuring that no water flows through the mainline when the system is idle, preventing waste from leaks or broken pipes.
3. At what point during mainline installation should a hydrostatic pressure test be performed?
Pressure testing before backfilling allows the installer to visually inspect every fitting, joint, and glued connection for leaks while they are still exposed and accessible, avoiding costly excavation if a failure is found after the trench is covered.
4. What is the most common cause of dry spots in a zone when run time appears adequate?
Dry spots despite sufficient run time usually result from poor DU caused by improper head spacing or worn nozzles leaving low-coverage areas under-irrigated.
5. Heat stress in outdoor workers performing irrigation installation or maintenance is best prevented by:
Heat-related illness is a serious risk for outdoor irrigation workers. Prevention includes drinking water before feeling thirsty (16-32 oz per hour), taking regular shade breaks (per OSHA guidelines), wearing light-colored loose clothing, gradually acclimatizing to heat, and watching for symptoms in yourself and coworkers.
6. A sprinkler head is not retracting fully after the zone turns off. The most likely cause is:
A sprinkler head that doesn't retract properly usually has dirt or debris between the riser and the body, or the internal spring that forces the riser down has weakened or broken. Cleaning the head and replacing the spring (or the entire head) resolves the issue.