Idaho HVAC Journeyman Exam - Online Practice Questions

Prepare for the Idaho HVAC Journeyman examination with online practice questions designed around the mechanical and fuel-gas code subjects included in the current state exam. This exam-preparation product focuses on the 2018 International Mechanical Code (IMC) and the 2018 International Fuel Gas Code (IFGC), the approved references identified for the Idaho HVAC Journeyman examination.

The Idaho HVAC Journeyman exam covers a wide range of heating, ventilation, air-conditioning, refrigeration, mechanical, and fuel-gas topics. Candidates should be comfortable working with code requirements involving ventilation, exhaust systems, ducts, chimneys, vents, appliances, boilers, refrigeration, hydronic piping, fuel-oil systems, gas piping, and fuel-gas equipment.

This product includes 3 months of access to online practice questions, giving candidates an opportunity to study over time, repeat question sets, review difficult subjects, and strengthen code-navigation skills before exam day.

Online practice questions help turn code study into active preparation. Instead of relying only on reading through the IMC and IFGC, candidates can practice identifying the topic presented in a question, determining which code applies, locating the controlling section or table, reading exceptions, and applying the requirement to an exam-style situation.

The current Idaho HVAC Journeyman examination contains 100 questions, allows 240 minutes, and requires a minimum passing score of 70. The exam is open book and is administered through PSI for the Idaho Division of Occupational and Professional Licenses.

The official examination blueprint draws from Chapters 1 through 6 and Chapters 8 through 14 of the 2018 International Mechanical Code, along with Chapters 1 through 7 of the 2018 International Fuel Gas Code. Preparing across both books is important because the examination requires candidates to move between mechanical-system and fuel-gas requirements efficiently.

What You Get

Exam Details

The Idaho HVAC Journeyman examination is administered through PSI. The current published examination information identifies the following format:

• Exam: Idaho HVAC Journeyman
• Number of Questions: 100
• Time Allowed: 240 minutes
• Minimum Passing Score: 70
• Exam Type: Open book
• Testing Provider: PSI
• Mechanical Reference: International Mechanical Code, 2018
• Fuel Gas Reference: International Fuel Gas Code, 2018

The current published blueprint distributes the International Mechanical Code questions approximately as follows:

• IMC Chapter 1: 4 questions
• IMC Chapter 2: 7 questions
• IMC Chapter 3: 9 questions
• IMC Chapter 4: 5 questions
• IMC Chapter 5: 9 questions
• IMC Chapter 6: 4 questions
• IMC Chapter 8: 4 questions
• IMC Chapter 9: 3 questions
• IMC Chapter 10: 3 questions
• IMC Chapter 11: 5 questions
• IMC Chapter 12: 5 questions
• IMC Chapter 13: 4 questions
• IMC Chapter 14: 1 question

The International Fuel Gas Code portion is approximately:

• IFGC Chapter 1: 3 questions
• IFGC Chapter 2: 3 questions
• IFGC Chapter 3: 6 questions
• IFGC Chapter 4: 7 questions
• IFGC Chapter 5: 8 questions
• IFGC Chapter 6: 5 questions
• IFGC Chapter 7: 5 questions

The distribution shows why candidates should prepare across both code books. General regulations, exhaust systems, refrigeration, hydronic piping, gas piping, chimneys and vents, and appliance requirements all represent important areas of study.

Open Book Test

The Idaho HVAC Journeyman examination is an open book test.

The approved exam references are the 2018 International Mechanical Code and the 2018 International Fuel Gas Code. Candidates are responsible for bringing their own approved reference materials to the examination center.

The current examination rules permit pre-exam highlighting, underlining, and permanent indexing of approved references. Candidates may not write in their books during the testing session. Additional loose papers and temporary markers such as removable Post-it-style tabs are prohibited.

Commentaries, illustrated versions, handbooks, and other unauthorized editions are not substitutes for the approved code books. Candidates should prepare using the exact approved references they intend to use during testing.

An open-book examination still requires preparation. Candidates receive an average of 2.4 minutes per question, so searching an entire book from the beginning for each answer can consume valuable time. Practice should focus on learning the structure of the IMC and IFGC and recognizing which chapter is likely to contain the answer.

Online practice questions can be especially helpful for building this skill. Candidates can practice identifying whether a question belongs in the IMC or IFGC, choosing the likely chapter, locating the relevant section, and checking tables or exceptions before selecting an answer.

Licensing Steps

Idaho HVAC Journeyman licensing is administered through the Idaho Division of Occupational and Professional Licenses. Idaho provides more than one qualification pathway for Journeyman applicants.

1. Choose the appropriate qualification pathway. Candidates may qualify through an approved Idaho apprenticeship-school pathway or the work-experience pathway.
2. Complete approved instruction when using the apprenticeship-school pathway. Idaho requires completion of 576 hours of instruction through a Board-approved HVAC apprenticeship program.
3. Document supervised HVAC installation experience. The standard apprenticeship pathway requires 8,000 hours of supervised HVAC installation work before the Journeyman license can be issued.
4. Maintain the required apprentice registration. Candidates earning the 8,000 Idaho work hours must meet the applicable apprentice-registration requirements.
5. Use the work-experience pathway when applicable. Idaho also recognizes a pathway requiring 16,000 hours of qualifying supervised HVAC installation work.
6. Register for the examination through PSI. Idaho HVAC examinations are currently offered through PSI.
7. Prepare with the approved code books. Study the 2018 International Mechanical Code and 2018 International Fuel Gas Code.
8. Take the 100-question Journeyman examination. Candidates receive 240 minutes to complete the exam.
9. Achieve the required passing score. A minimum score of 70 is required.
10. Apply for licensure through Idaho DOPL. After meeting the examination and qualification requirements, complete the state licensing process.

State Requirements

Under Idaho's apprenticeship-school pathway, an HVAC Journeyman applicant completes 576 hours of instruction at a Board-approved HVAC apprenticeship program.

The candidate must also document 8,000 hours of supervised HVAC installation work before the Journeyman license can be issued. Idaho permits a candidate using this pathway to take the examination after completing the required 576 hours of approved instruction, but licensure is not issued until the 8,000-hour supervised work requirement is documented.

Idaho also offers a work-experience pathway requiring 16,000 hours of supervised HVAC installation experience. Applicants using that pathway must provide the required work verification.

Idaho requires HVAC work used toward qualification to satisfy the state's licensing and supervision rules. Hours worked without the required license or registration do not count toward required on-the-job training time.

The current HVAC codes adopted for use in Idaho include the 2018 International Mechanical Code, 2018 International Fuel Gas Code, and applicable portions of the 2018 International Residential Code. The Journeyman exam reference list specifically identifies the 2018 IMC and 2018 IFGC as the approved examination books.

Reference Books

• International Mechanical Code, 2018
  The primary mechanical reference for the Idaho HVAC Journeyman examination. Major study areas include general regulations, ventilation, exhaust systems, ducts, chimneys and vents, specific appliances, boilers, refrigeration, hydronic piping, fuel-oil piping and storage, and solar systems.
• International Fuel Gas Code, 2018
  The fuel-gas reference for the Idaho HVAC Journeyman examination. Important topics include general regulations, gas piping installations, chimneys and vents, specific appliances, combustion-air considerations, and gaseous hydrogen systems.

Exam Room Approved Books

• International Mechanical Code, 2018
  The 2018 IMC is an approved Idaho HVAC Journeyman examination reference. Candidates must provide their own approved copy.
• International Fuel Gas Code, 2018
  The 2018 IFGC is an approved Idaho HVAC Journeyman examination reference. Candidates must provide their own approved copy.

Approved books may be highlighted, underlined, and permanently indexed before the examination. Writing during the examination, temporary tabs, and additional loose papers are prohibited.

Test Information and Study Materials

IMC General Regulations: Review equipment installation, clearances, access, protection, condensate disposal, equipment locations, and other general mechanical requirements. Chapter 3 is one of the larger IMC areas on the exam.

Ventilation: Practice identifying ventilation requirements, outdoor-air provisions, mechanical ventilation conditions, air-distribution requirements, and applicable tables.

Exhaust Systems: IMC Chapter 5 represents another major examination category. Study domestic exhaust, commercial exhaust, dryer exhaust, kitchen exhaust systems, environmental air, hazardous exhaust, clearances, and terminations.

Duct Systems: Review duct construction, insulation, installation, support, plenums, flexible ducts, fire and smoke dampers, and other distribution-system requirements.

Chimneys and Vents: Study venting systems, vent connectors, terminations, clearances, and requirements that apply to mechanical appliances.

Specific Appliances: Review installation requirements for furnaces, unit heaters, duct furnaces, heat pumps, cooling equipment, and other mechanical appliances.

Boilers and Pressure Vessels: Study installation requirements, controls, safety devices, clearances, and related piping provisions.

Refrigeration: Review refrigerant classifications, refrigerant quantities, refrigeration machinery rooms, ventilation, detection, piping, and system requirements. The published blueprint assigns five questions to IMC Chapter 11.

Hydronic Piping: Practice questions involving piping systems, expansion tanks, valves, pressure testing, embedded piping, materials, and related installation requirements.

Fuel-Oil Piping and Storage: Review applicable fuel-oil storage, piping, tank, valve, and installation provisions within the IMC.

Gas Piping: IFGC Chapter 4 is one of the major fuel-gas areas. Practice pipe sizing, gas pressure, valves, regulators, appliance connections, testing, purging, and piping materials.

Fuel-Gas Chimneys and Vents: IFGC Chapter 5 has approximately eight questions, making it the largest IFGC category. Review vent sizing, vent connectors, draft hoods, mechanical draft systems, terminations, and clearances.

Fuel-Gas Appliances: Study appliance installation, combustion air, equipment connections, clearances, controls, and appliance-specific requirements.

Code Navigation: Practice deciding which reference controls the question before beginning the lookup. Mechanical-system questions generally lead to the IMC, while gas-piping and fuel-gas appliance questions often lead to the IFGC.

Timed Practice: With 100 questions in 240 minutes, candidates should practice at an exam-like pace. Timed question sets can help develop judgment about when to complete a detailed lookup and when to mark a difficult question and move forward.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Idaho HVAC Journeyman candidates prepare through organized, trade-focused, practice-oriented study. With 3 months of access, candidates have time to work through online practice questions, repeat difficult material, and build a consistent study routine before the examination.

Practice questions reinforce mechanical-code topics such as ventilation, exhaust systems, ductwork, chimneys, boilers, refrigeration, hydronic piping, and equipment installation. They also support study of fuel-gas piping, gas appliances, combustion air, venting, and related IFGC requirements.

Because the official examination is open book, 1 Exam Prep also supports reference-navigation practice. Candidates can develop the habit of identifying the relevant code book and chapter before searching for the exact answer.

Repeated practice can help reveal areas that deserve additional review. A candidate may be comfortable with HVAC equipment installation but need more work with refrigeration requirements, gas-pipe sizing, hydronic piping, ventilation tables, or chimney and vent provisions.

The 3-month access period allows candidates to revisit those weak areas and practice using the approved references throughout their preparation. The goal is to connect practical HVAC experience with organized code review, stronger navigation skills, and repeated exam-style application.

1 Exam Prep does not rely on promises of a particular examination outcome. Instead, the focus is on providing structured practice that helps candidates become more familiar with the material, references, and testing format they will encounter on the Idaho HVAC Journeyman examination.

Frequently Asked Questions

How long do I have access to the online practice questions?

This product includes 3 months of access to the Idaho HVAC Journeyman online practice questions.

How many questions are on the Idaho HVAC Journeyman exam?

The current examination contains 100 questions.

How much time is allowed?

Candidates receive 240 minutes, or four hours, to complete the exam.

What score is required to pass?

The minimum passing score is 70.

Is the Idaho HVAC Journeyman exam open book?

Yes. The Idaho HVAC Journeyman examination is an open book test.

What books are approved for the examination?

The approved references are the 2018 International Mechanical Code and the 2018 International Fuel Gas Code.

Are commentaries allowed?

No. Commentary versions of the approved IMC and IFGC references are not permitted as substitutes for the approved examination books.

Can my books be highlighted and tabbed?

Yes. Pre-exam highlighting, underlining, and permanent indexing are permitted. Temporary markers such as removable Post-it-style tabs are prohibited.

Can I write in the books during the exam?

No. Writing in reference materials during the examination session is prohibited.

Who administers the examination?

The Idaho HVAC Journeyman examination is administered through PSI for the Idaho Division of Occupational and Professional Licenses.

How much experience is required under the apprenticeship-school pathway?

The standard pathway requires completion of 576 hours of approved instruction and documentation of 8,000 hours of supervised HVAC installation work before the Journeyman license is issued.

Can I take the exam before completing all 8,000 work hours?

Under the approved apprenticeship-school pathway, a candidate may take the examination after completing the required 576 hours of approved instruction. The license is not issued until the candidate documents the required 8,000 hours of supervised HVAC installation work.

Is there an alternative experience pathway?

Yes. Idaho also recognizes a work-experience pathway requiring 16,000 hours of supervised HVAC installation work.

What are the biggest areas to study?

Important areas include IMC general regulations, exhaust systems, refrigeration, hydronic piping, ventilation, duct systems, gas piping, fuel-gas chimneys and vents, appliance installation, and efficient code navigation.

How can online practice questions help?

Practice questions help reinforce code knowledge, develop open-book navigation skills, identify weak areas, and provide repeated experience applying IMC and IFGC requirements in an exam-style format.

Should I practice with the IMC and IFGC open?

Yes. Because the actual exam is open book, practicing with the approved references can help build familiarity with chapter organization, tables, definitions, exceptions, and commonly tested sections.