Storm Drainage Practice Questions
Where storm water may go, leaders and conductors, sizing by rainfall rate, secondary roof drains, subsoil drains and sump discharge.
70 questions in 4 hours, scored against the 70% pass mark, with a score for storm drainage so you know where you stand.
Free storm drainage drillStorm drainage piping inside a building must be:
Storm Drainage on the journeyman plumber exam
Storm drainage is 2% of the ICC G25 exam (about one question). TSBPE’s journeyman review course does not list a storm drainage chapter, so our Texas mock leaves it out.
- On our mocks
- Texas: not on our Texas mock · ICC G25: 1 of 70 on our ICC G25 mock
- Our drill
- 10 questions from 12 storm drainage questions, untimed, an explanation and code reference after every answer; one free attempt, unlimited with a pass
What storm drainage questions test
- Storm water goes to a storm sewer or approved place, never a sanitary-only sewer
- Leaders (outside) and conductors (inside), subsoil drains and sump discharge
- Sizing by roof area and the 100-year, 1-hour rainfall rate
- Secondary roof drains and scuppers and where they discharge
Sit the full exam under the real clock
70 questions in 4 hours, scored against the 70% pass mark, with a score for storm drainage so you know where you stand.
Free storm drainage drillHow to study it
- Learn the definitions and the secondary-drain rule; with one question on G25, that covers most of what is asked.
Common questions
Is storm drainage on the Texas journeyman exam?
TSBPE’s review course lists no storm drainage chapter for the journeyman exam, so our Texas mock has no storm questions. It is 2% of the ICC G25 exam.
70 questions in 4 hours, scored against the 70% pass mark, with a score for storm drainage so you know where you stand.
Free storm drainage drillThe other sections
- Code Definitions and Plan Reading
- General Regulations, Testing and Plumbing Math
- Pipe Materials and Joints
- Plumbing Fixtures
- Water Heaters
- Water Supply and Distribution
- Sanitary Drainage
- Vents
- Traps, Interceptors and Separators
- Fuel Gas Piping
- Texas Plumbing License Law and Board Rules
- Texas practice exam (100 questions, 2 hours)
- ICC G25 practice exam (70 questions, 4 hours)
- Free ICC mixed drill
Sources
- Pearson VUE: Texas State Board of Plumbing Examiners (retake waits, practical, five attempts)
- TSBPE Candidate Handbook, August 2025 (exam table, fees, 70% passing score, test-center rules)
- TSBPE Journeyman Plumber Examination Review Course, rev 09/2025 (format, codes, chapters, sample questions)
- TSBPE Administrative Rules, March 2026 (22 TAC §§363.5, 363.22, 365.1, 367.2)
- TSBPE proposed amendment to §367.2 (2021 IPC and UPC), Texas Register, August 14, 2026
- TSBPE Strategic Plan 2025-2029 (examination statistics, p. 14)
- ICC National Contractor/Trades Examination Information Bulletin, published June 30, 2026 (G25 Journeyman Plumber)
- ICC Support: What is a passing score?
Original practice questions written to the TSBPE Journeyman Plumber Examination Review Course, ICC’s G25 content outline and the 2018 International Plumbing Code and Uniform Plumbing Code; they are not exam questions and quote no code text. Independent practice, not affiliated with or endorsed by the Texas State Board of Plumbing Examiners, the International Code Council, IAPMO or Pearson VUE.