ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Exam Prep Checklist
Everything for the ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) exam in one place: the bulletin's key facts, the topics and how many questions each carries, the reference books, sample questions with answers, and a prep checklist. Pearson VUE gives the exam.
ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Exam Facts
From the official bulletin:
| Questions | 55 questions |
| Time limit | 2 hours |
| Passing score | 70% correct |
| Books in the exam room | Open book |
| Exam fee | $120 |
On exam day
- The exam consists of multiple-choice questions.
- You may bring copyrighted, bound books to the test administration, including those specifically listed as approved references. However, training materials such as presentations, study guides, or practice questions are not permitted. All exam questions are based solely on the approved reference list, and only those references may be used as the basis for appealing exam questions.
References you may bring
- 2015 International Fuel Gas Code
Scheduling, changes and retakes
- Exams are scheduled through PearsonVUE at www.pearsonvue.com/ICC, where candidates can create an account, schedule an exam, locate a test center, purchase vouchers and request accommodations.
- Results for examinations taken electronically are available immediately after the examination is completed.
- You must wait 10 days before retaking a failed exam.
- After passing, contact the jurisdiction in which you wish to be licensed for any other requirements, because ICC is not a licensing agency.
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.
ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Exam Topics
The official content outline has 5 topics:
| Topic | Questions | Share of the exam |
|---|---|---|
| General Requirements | 22 | 40% |
| Appliances and Equipment | 13 | 24% |
| Fuel Supply System Sizing | 5 | 9% |
| Combustion Air | 7 | 13% |
| Chimneys and Vents | 8 | 15% |
ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Exam Prep Checklist
- Get the reference books the bulletin lists, in the editions it names.
- Learn each book's table of contents and index first.
- Highlight the sections you use most. The exam facts above list the bulletin's rules on tabs and markings, so follow them exactly.
- Start with the biggest topics: General Requirements and Appliances and Equipment (64% of the exam).
- Take our timed practice exams until you pass several in a row.
- After each attempt, look up every question you missed in your book.
- Practice at the real exam's pace: about 2 minutes 11 seconds per question.
ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Exam Reference Books
The listed reference for this exam is the 2015 International Fuel Gas Code.
Where to get them:
Test Day Checklist
- First pass: answer every question you know. Bookmark the rest. Every exam lets you return to bookmarked questions.
- Second pass: work through your bookmarks.
- Pace: 2 hours for 55 questions, which is about 2 minutes 11 seconds per question.
- Last step: answer anything still blank. A blank can't earn a point.
Study Tips
On an open-book exam, the winners aren't the smartest people in the room — they're the fastest at finding answers. Buy the required book, practice with it open, and tab and highlight each section the first time a question sends you there. Learn the index and table of contents until you can land on any topic in seconds. That speed is what separates a pass from a fail.
Know your way around each book's index and table of contents. Open-book exams reward speed: you need to find specific items quickly.
On an open-book exam, work through every question once: answer the ones you know and skip the ones you don't. Then go back to the ones you flagged. You can bookmark questions for later review, just like on our exams — and don't sink too much time into any single question. The clock is still running.
Give yourself at least three to six weeks. Use your exam's candidate bulletin as your roadmap for what's tested, and spend your time on finding-it-fast skills over rote memorization. In practice, aim for three clean passes at 80% or higher — setting your practice bar above the real cut score gives you a comfortable margin on test day.
Practicing against a ticking clock is the best way to beat exam-clock anxiety. Use these timed tests to build your pacing, so you learn to move steadily and never burn too long on a single question. By test day, the format feels routine.
This practice exam mirrors the real Pearson VUE exam — the same number of questions, drawn from the same topics. Practicing in that format now means no surprises when you sit for the real thing.
ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) Sample Questions
From our practice question bank, with answers and references:
Sample 1 — Combustion Air
Question: An enclosure contains gas appliances with a total input rating of 160,000 Btu/h. Outdoor combustion air is supplied by two permanent openings — one within 12 inches of the top and one within 12 inches of the bottom — each communicating with the outdoors through a horizontal duct. What is the minimum free area of each opening?
- A. 40 square inches
- B. 80 square inches
- C. 160 square inches
- D. 53 square inches
Correct Answer: B
IFGC Section 304.6.1 requires 1 square inch per 2,000 Btu/h for each opening where communication with the outdoors is through horizontal ducts: 160,000 ÷ 2,000 = 80 square inches each. The 1 square inch per 4,000 Btu/h figure applies only to direct outdoor openings or vertical ducts; 1 square inch per 3,000 Btu/h applies to the one-permanent-opening method of Section 304.6.2.
Reference: IFGC 2015 Section 304.6.1
Sample 2 — Fuel Supply System Sizing
Question: The fuel gas code's piping provisions govern piping systems extending between which two points?
- A. From the point of delivery to the appliance connections
- B. From the street main to the gas meter
- C. From the meter outlet to each appliance shutoff valve
- D. From the service regulator to the building shutoff
Correct Answer: A
Per IFGC Section 401.1, the applicability of the code to piping systems extends from the point of delivery to the connections with the appliances, including design, materials, fabrication, installation, testing and maintenance.
Reference: IFGC 2015 Section 401.1
Sample 3 — General Requirements
Question: A new gas piping system in a commercial building has a calculated internal pipe volume of 1,200 cubic feet. What is the minimum required duration of the pressure test?
- A. 30 minutes
- B. 2 hours
- C. 1 1/2 hours
- D. 1 hour
Correct Answer: C
Per IFGC 2015 Section 406.4.2, test duration shall be not less than 1/2 hour for each 500 cubic feet of pipe volume or fraction thereof. 1,200 cubic feet ÷ 500 = 2.4; since any fraction of 500 cubic feet counts as a full increment, this rounds up to 3 increments. 3 × 1/2 hour = 1 1/2 hours minimum test duration.
Reference: IFGC 2015 Section 406.4.2
Sample 4 — Appliances and Equipment
Question: A household gas range is installed beneath a combustible cabinet. A metal ventilating hood constructed of sheet metal 0.0122 inch thick, as wide as the appliance and centered over it, is installed with 1/4 inch of clearance between the hood and the underside of the cabinet. What is the minimum permitted vertical clearance from the cooking top to the combustible material above?
- A. 18 inches
- B. 36 inches
- C. 24 inches
- D. 30 inches
Correct Answer: C
Per 2015 IFGC Section 623.7, household cooking appliances require not less than 30 inches vertical clearance above the cooking top to combustible material and metal cabinets; 24 inches is permitted where one of the listed protections is installed, including a metal ventilating hood of not less than 0.0122-inch sheet metal with at least 1/4-inch clearance to the combustible material, at least as wide as and centered over the appliance.
Reference: IFGC 2015 Section 623.7
Online Practice vs. a PDF
- Timed: you practice finding answers under time pressure, not just reading them.
- Bookmarks: flag questions and come back, the way you will on test day.
- New sets: each attempt draws new questions from our bank.
- Scored by topic: your results show which outline topics need more study.
Next Step
- Take the free ICC F34 Journeyman Gas Pipe Fitter (2015 IFGC) practice exam.
- Study the topics where you scored lowest.
- Read the exam bulletin for the official rules, and see the licensing board's website.