Plumber Exam Prep / Iowa
Plumber Exam — IA
Journeyman Plumber Exam in Iowa
Complete breakdown of the journeyman plumber licensing process in Iowa — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Iowa Plumbing and Mechanical Systems Board
- Exam Provider
- PSI Exams
- Code Edition
- 2018 IPC
- Passing Score
- 70%
- Question Count
- 80
- Exam Fee
- $50
- Experience Required
- 4 years
Note: Always verify current requirements with Iowa Plumbing and Mechanical Systems Board.
Iowa Plumber License — What to Know
Iowa requires a journeyman plumber license and a separate master plumber license for contractors.
Key Code Sections to Master
The International Plumbing Code (IPC) exam covers water supply, drainage, venting, fixtures, water heaters, storm drainage, and special piping. Focus on the table for pipe sizing (Table 604.4 for water supply, Table 710.1 for drainage fixture units), minimum fixture requirements by occupancy type, and venting rules. Drainage fixture units (DFUs) are frequently tested via calculation questions.