ICC F24 Master Plumber Exam (2015 IPC) Practice Exam
Free Practice Exam
Test your knowledge with 10 questions from our pool of 20 free questions.
- 10 questions per attempt
- 30 minute time limit
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Full Practice Exam
Complete exam simulation matching the real Pearson VUE test format.
- 100 questions (same as real exam)
- 240 minute time limit
- 7 topic areas covered
- 419 questions in pool
- Detailed explanations
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ICC F24 Master Plumber (2015 IPC) Practice Exam Guide
What's on the exam
Questions per topic, out of 100This practice exam follows the official content outline for the ICC F24 Master Plumber (2015 IPC) exam: Administration General Regulations, Plumbing Fixtures, Water Supply and Distribution, Sanitary Drainage, Plumbing Vent Requirements, Traps, Interceptors, and Separators, Storm Drainage.
You have two ways to practice. The free practice exam gives you 10 questions per attempt, and you can retake it as often as you like. The full practice exam gives you 100 questions on a 4 hours clock, with a new draw from our question bank every attempt.
Administration General Regulations 46 items
Our study plan for this topic: General Installation Requirements; Code Definitions and Terms; Plan Reading; Testing; Materials; Permits and Permit Issuance; Inspections and Approval Process; Code Official Authority and Enforcement.
Plumbing Fixtures 14 items
Our study plan for this topic: Water Heaters; Water Closets and Urinals; Specialty Fixtures; Bathtubs, Showers, Sinks, and Lavatories; Minimum Plumbing Fixture Requirements by Occupancy Type; Fixture Installation Requirements and Spacing; Faucets, Fixture Fittings, and Shower Valve Requirements; Flushing Devices for Water Closets and Urinals.
Water Supply and Distribution 11 items
Our study plan for this topic: Service Distribution and Piping; Water Supply and Pressure; Protection of Potable Water Supply; Pipe Materials, Joints, and Fitting Standards; Fixture Supply Pipe Sizing and Flow Requirements; Hot Water Supply System Requirements; Valve Installation and Location Requirements; Water Hammer Arrestors and Pressure Regulation.
Sanitary Drainage 11 items
Our study plan for this topic: Building Sanitary Drainage; Sumps and Ejectors; Indirect and Special Waste Systems; Drainage piping materials and applicable standards (above-ground, underground, and building sewer); Pipe joint methods by material type (solvent cement, mechanical, caulked, heat-fusion, etc.); Slope, sizing, and fixture unit load calculations for horizontal drains and stacks; Cleanout location, spacing, size, and access requirements; Drainage fittings selection and prohibited joints or connections.
Plumbing Vent Requirements 8 items
Our study plan for this topic: Vent Connections and Grades; Vent Terminals; Vent Pipe Sizing and Developed Length; Types of Venting Methods (Individual, Common, Wet, Circuit, Combination Waste and Vent); Air Admittance Valves; Trap Seal Protection and Maximum Distance of Fixture Trap from Vent; Vent Stack and Stack Vent Requirements; Relief Vents for Multi-Story Stacks.
Traps, Interceptors, and Separators 8 items
Our study plan for this topic: Installation of Traps; Interceptors and Separators; Prohibited trap types; Trap seal requirements and protection methods; Fixture trap sizing and design standards; Grease interceptor sizing and capacity requirements; Oil separator design and application requirements; Sand, solids, and specialty interceptor requirements.
Storm Drainage 2 items
Our study plan for this topic: Storm Drainage; Sizing of vertical conductors, leaders, and horizontal storm drains using rainfall rate tables; Primary and secondary (emergency overflow) roof drain requirements; Approved materials for building storm sewer pipe and subsoil drain pipe; Sump pit and pumping system requirements; Controlled flow roof drain system design and minimum number of roof drains; Storm water trap requirements for combined sewer connections; Subsoil drain installation and discharge requirements.
Sample 1 — Administration General Regulations
Question: Water delivered to a fixture is classified as tempered water when its temperature falls within which range?
- A. 90°F to 120°F
- B. 85°F to 110°F
- C. 70°F to 100°F
- D. 110°F to 140°F
Correct Answer: B
IPC 2015 Section 202 defines 'Tempered water' as water having a temperature range between 85°F (29°C) and 110°F (43°C). Water at or above 110°F is defined as 'hot water.'
Reference: IPC 2015 Section 202 (Tempered Water)
Sample 2 — Plumbing Fixtures
Question: A lavatory equipped with an integral overflow is being installed in a public toilet room. Where must the overflow waste discharge into the drainage system?
- A. On the outlet side of the trap
- B. Into the trap arm downstream of the weir
- C. On the fixture side of the trap
- D. Into the vent above the flood level rim
Correct Answer: C
IPC 2015, Section 405.7.1 requires the overflow from any fixture to discharge into the drainage system on the inlet or fixture side of the trap. The only exception is the overflow from a flush tank serving a water closet or urinal, which discharges into the fixture served.
Reference: IPC 2015 Section 405.7.1
Sample 3 — Water Supply and Distribution
Question: A private potable water well is being finished with an overlapping water-tight cover at the top of the casing. The cover must extend downward over the outside of the well casing or wall by not less than:
- A. 8 inches
- B. 6 inches
- C. 4 inches
- D. 2 inches
Correct Answer: D
IPC 2015, Section 608.17.7 requires potable water wells to be equipped with an overlapping water-tight cover that extends downward not less than 2 inches (51 mm) over the outside of the well casing or wall, preventing contaminated water from entering through the annular opening.
Reference: IPC 2015 Section 608.17.7
Treat your first attempt as a checkup, not a verdict. After every attempt, the results page breaks your score down by outline topic, so you can see which topics need work. Compare your score with the real exam's passing score, 70% correct, and keep practicing until you pass consistently.
- Answer what you know first. Go through every question once, answer the ones you know, and bookmark the rest. Our practice exams let you bookmark and come back.
- Come back to your bookmarks. Work them out on your second pass.
- Watch your pace. The real exam works out to about 2 minutes 24 seconds per question.
- Look up every miss. After each attempt, find each missed question's reference in your book and read the section.
| Questions | 100 questions |
| Time limit | 4 hours |
| Passing score | 70% correct |
| Books in the exam room | Open book |
| Exam fee | $120 |
- Results for examinations taken electronically are available immediately after the examination is completed.
- You must wait 10 days before retaking a failed exam.
Source: National Contractor/Trades Examination Information Bulletin, PUBLISHED June 30, 2026; ICC Exam Catalog, checked October 6, 2026. Check the bulletin before test day: fees and rules can change.