100+ Free IL Plumber Practice Questions
Pass your Illinois Journeyman Plumber License Exam exam on the first try — instant access, no signup required.
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Key Facts: IL Plumber Exam
75% average (min 61 each section)
Passing Score
Illinois Department of Public Health (IDPH)
100
Questions
Varies by section limit
$175
Exam Fee
State-administered
IPC
Code Base
Illinois adoption
Illinois's journeyman plumber exam is based on the Illinois State Plumbing Code (SPC) and administered by IDPH. It uses a unique 3-part format: written knowledge test, drawing interpretation, and practical demonstration. The Illinois SPC is distinct from both the IPC and UPC. The exam requires a 75% average with a minimum 61% on each section.
About the IL Plumber Exam
Illinois journeyman plumber exam is state-administered by IDPH. Unique 3-part format: written knowledge, drawing interpretation, and practical skills. Based on the Illinois State Plumbing Code (SPC). Requires 75% average with minimum 61% on each section.
Questions
100 scored questions
Time Limit
Varies by section
Passing Score
75% average (min 61 each section)
Exam Fee
$175 (Illinois Department of Public Health (IDPH))
IL Plumber Exam Content Outline
Drainage & Waste Systems
Drain sizing, DFU calculations, slope requirements, cleanouts per SPC
Water Supply & Distribution
Pipe sizing, backflow prevention, water heaters, pressure regulation per SPC
Venting Systems
Vent sizing, wet venting, AAVs, vent termination, circuit venting per SPC
Gas Piping
Gas pipe sizing, appliance venting, pressure testing, BTU calculations per IFGC
Fixtures, Materials & Illinois Code
Fixture installation, materials, joints, permits, inspections, and Illinois-specific requirements
How to Pass the IL Plumber Exam
What You Need to Know
- Passing score: 75% average (min 61 each section)
- Exam length: 100 questions
- Time limit: Varies by section
- Exam fee: $175
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
IL Plumber Study Tips from Top Performers
Frequently Asked Questions
What code does Illinois use for the plumber exam?
Illinois uses the Illinois Plumbing Code (SPC). The exam covers drainage, venting, water supply, gas piping, and fixture requirements as adopted by the state.
Who administers the Illinois plumber exam?
The exam is administered by State-administered under the Illinois Department of Public Health (IDPH).
How many questions are on the Illinois plumber exam?
The Illinois plumber exam has approximately 100 questions with a Varies by section time limit. A score of 75% average (min 61 each section) is required to pass.
Is the IL plumber exam open book?
Most State-administered-administered plumber exams allow a bound copy of the adopted code. Check with the Illinois Department of Public Health (IDPH) for approved reference materials.