Oklahoma HVACR Limited Journeyman Exam Prep - Live Virtual + Self Study Training

Prepare for the Oklahoma HVAC/R Limited Journeyman examination with a combination of live virtual training and structured self-study preparation focused on the technical knowledge and reference-navigation skills used on the current Oklahoma licensing exam. This training is designed for mechanical professionals working toward the Oklahoma HVAC/R Limited Journeyman license through the Oklahoma Construction Industries Board.

The HVAC/R Limited Journeyman classification covers qualifying air conditioning, refrigeration, heating, ventilation, ductwork, sheet metal, natural gas piping, and related mechanical work within defined equipment-capacity limits. Oklahoma limits this classification to cooling products, systems, and equipment with a capacity of no more than 25 tons and heating equipment with a heat input of no more than 500,000 Btu/h per appliance.

The current Oklahoma HVACR Journeyman Limited examination contains 60 scored questions, allows 180 minutes, and requires a minimum passing score of 70%. Candidates currently need 42 correct answers to meet the passing standard.

Preparation covers the major subjects found on the examination, including electrical knowledge and controls, natural gas, air distribution systems, refrigeration and air conditioning systems, heating systems, and OSHA safety. The exam requires candidates to combine practical HVAC/R knowledge with the ability to locate information efficiently in approved references.

This Live Virtual + Self Study Training is organized around important exam references including the International Mechanical Code, 2018, International Fuel Gas Code, 2018, Modern Refrigeration and Air Conditioning, 22nd Edition, Mathematics for Plumbers and Pipefitters, 8th Edition, and Code of Federal Regulations - 29 CFR Part 1926 (OSHA). The current examination reference list also includes the ACCA Ductulator and Manual J - Residential Load Calcs, Eighth Full Edition.

Live Class Schedule

The live training schedule is organized around the books and technical references used on the exam. Click Here to View the Current Live Class Schedule

Exam Details

The Oklahoma HVACR Journeyman Limited examination tests knowledge of the installation, maintenance, repair, fabrication, alteration, and extension of air conditioning, refrigeration, heating, and ventilation systems, including ductwork within a complete system subject to the Limited classification’s capacity restrictions.

The current examination includes 60 scored questions with a testing time of 180 minutes. The minimum passing score is 70%, equal to 42 correct answers.

Electrical Knowledge and Controls contains 15 questions, making it the largest individual category. Candidates should study general electrical theory, motors, DC circuits, AC circuits, and HVAC/R controls. Understanding how controls interact with mechanical equipment is particularly important for installation, service, and troubleshooting questions.

Natural Gas contains nine questions. Subjects include piping valves, connectors, accessories, hangers and supports, sizing, materials, testing, installation, and assembly. Candidates should develop familiarity with the International Fuel Gas Code and learn how to locate gas-system requirements efficiently.

Air Distribution Systems contains 10 questions. Topics include duct definitions, sizing and design, duct assembly and installation, hangers and supports, duct materials and shapes, insulation, fire and smoke control, hoods and exhaust systems, testing and balancing, ventilation requirements, plans, and symbols.

Refrigeration and Air Conditioning Systems contains 13 questions. Preparation should include refrigeration theory, refrigerants, equipment sizing and design, components, piping, equipment installation, system operation, troubleshooting, and maintenance.

Heating Systems contains 10 questions. Candidates should review heating theory and system types, combustion air, vents and chimneys, equipment sizing, heating equipment, installation, system operation, troubleshooting, maintenance, hydronics, and hydronic piping.

Safety contains three questions. Topics include personal protective equipment, safety training, adequate ventilation, first-aid requirements, hazardous materials, fall protection, lockout/tagout, ladders, and scaffolds.

The examination can also include questions based on trade knowledge and general industry practices. Live instruction and self-study preparation should therefore address both reference-book navigation and practical HVAC/R concepts.

Open Book Test

The Oklahoma HVACR Limited Journeyman examination is an open-book test. Candidates are responsible for bringing the approved references they plan to use at the examination center.

The current reference list includes the 2018 International Mechanical Code with Oklahoma revisions and the 2018 International Fuel Gas Code with Oklahoma revisions. Code questions are based on the specific code editions identified for the examination.

The current examination also permits the ACCA Ductulator, Modern Refrigeration and Air Conditioning, Manual J - Residential Load Calcs, Mathematics for Plumbers and Pipefitters, and OSHA 29 CFR Part 1926.

The current reference list identifies earlier editions of Modern Refrigeration and Air Conditioning, and later editions of approved non-code references are allowed. The 22nd Edition listed with this training is a later edition of the approved non-code reference.

Approved references may be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted and can be helpful for organizing frequently used sections covering duct systems, refrigeration, heating, ventilation, gas piping, and safety.

Temporary removable tabs such as Post-it notes are not permitted. References may not contain written notes before the examination, and candidates may not write in approved references during the test.

Additional loose papers are not allowed with the approved references. Downloaded references must be properly secured according to current testing requirements.

Candidates may use a silent, non-printing, non-programmable calculator. With 60 questions and 180 minutes available, candidates average approximately three minutes per question. Effective preparation should include timed practice and repeated use of the references before test day.

Licensing Steps

1. Begin working in the mechanical trade. Gain qualifying HVAC/R experience within Oklahoma’s mechanical licensing structure.
2. Maintain apprentice registration when required. Oklahoma experience used toward mechanical licensing generally must be supported by appropriate apprentice registration unless a lawful exception applies.
3. Gain experience in the HVAC/R Limited category. Develop verifiable experience involving the type of heating, cooling, refrigeration, natural gas, and air-distribution work associated with this license classification.
4. Meet journeyman qualification requirements. The standard pathway requires three years of verifiable mechanical experience in the category being pursued.
5. Use qualifying mechanical education when applicable. Oklahoma recognizes approved combinations of formal mechanical education and field experience.
6. Maintain supporting documentation. Keep records of apprentice registration, employment, qualifying education, and other information used to establish licensing eligibility.
7. Submit the Mechanical License Application. Apply through the Oklahoma Construction Industries Board for HVAC/R Limited Journeyman examination eligibility.
8. Receive approval to test. The Construction Industries Board evaluates the application and determines examination eligibility.
9. Schedule through PSI. Approved candidates arrange the examination date, time, and testing location with PSI.
10. Prepare with live virtual and self-study training. Review technical topics, calculations, approved references, and open-book navigation before testing.
11. Take the HVACR Journeyman Limited examination. Complete 60 scored questions within the 180-minute testing period.
12. Earn the required passing score. The current passing requirement is 70%, or 42 correct answers.
13. Complete license issuance requirements. Follow the Oklahoma Construction Industries Board process for obtaining the HVAC/R Limited Journeyman license after meeting applicable requirements.

State Requirements

Applicants for an Oklahoma mechanical journeyman license must be at least 18 years old.

The standard qualification pathway requires three years of verifiable mechanical experience in the category for which the applicant is applying. Oklahoma defines one year of verifiable mechanical experience as 2,000 hours.

Oklahoma also recognizes qualifying mechanical education. An approved associate degree or vocational diploma consisting of at least 1,000 hours may be combined with one year of verifiable mechanical experience. Other approved education-and-experience combinations are available for qualifying vocational programs with fewer instructional hours.

Experience used toward licensing generally must involve mechanical work obtained while employed by a licensed Mechanical Contractor or through another method approved by the Committee of Mechanical Examiners. Equivalent qualifying military experience may also be considered.

The HVAC/R Limited Journeyman license allows qualifying work involving cooling products, systems, and equipment, including process piping, with a cooling capacity of no more than 25 tons.

The classification also covers heating equipment and associated process piping with a heat input of no more than 500,000 Btu/h per appliance. Sheet metal, natural gas piping, and refrigeration are included within the Limited classification.

A licensed journeyman works for an active, licensed Mechanical Contractor. Journeyman licensing does not independently authorize the license holder to operate as a Mechanical Contractor.

Reference Books

• International Mechanical Code, 2018
  The 2018 International Mechanical Code with Oklahoma revisions supports preparation involving mechanical equipment, ventilation, air distribution, duct systems, refrigeration, heating, hydronics, exhaust, and related mechanical-code requirements.
• International Fuel Gas Code, 2018
  The 2018 International Fuel Gas Code with Oklahoma revisions supports natural gas preparation involving piping, valves, connectors, supports, sizing, materials, testing, installation, combustion air, and associated requirements.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  This HVAC/R technical reference supports preparation involving refrigeration theory, refrigerants, electrical systems, motors, controls, air conditioning, heating, components, installation, troubleshooting, operation, and maintenance.
• Mathematics for Plumbers and Pipefitters, 8th Edition
  This trade mathematics reference supports preparation involving measurements, piping mathematics, dimensions, offsets, and other calculations relevant to mechanical work.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction-safety reference supports preparation involving PPE, fall protection, ladders, scaffolds, hazardous materials, ventilation, lockout/tagout, safety training, and other workplace requirements.
• ACCA Ductulator
  The current exam reference list includes the ACCA Ductulator for duct-sizing and air-distribution calculations.
• Manual J - Residential Load Calcs, Eighth Full Edition
  The current exam reference list includes Manual J for residential heating and cooling load-calculation concepts, equipment sizing, heat gain, and heat loss.

Test Information and Study Materials

A productive Oklahoma HVACR Limited Journeyman study plan should follow the exam weighting. Electrical Knowledge and Controls contains 15 questions, Refrigeration and Air Conditioning Systems contains 13, and Air Distribution and Heating Systems each contain 10.

Prioritize Electrical Knowledge and Controls. Review electrical theory, AC and DC circuits, motors, controls, and the relationship between electrical systems and HVAC/R equipment operation.

Strengthen Refrigeration and Air Conditioning knowledge. Study refrigeration theory, refrigerants, equipment sizing, components, piping, installation, troubleshooting, system operation, and maintenance.

Practice Air Distribution. Review duct sizing, design, assembly, supports, materials, insulation, ventilation, exhaust, testing and balancing, plans, and symbols.

Review Heating Systems. Study combustion air, vents, chimneys, equipment sizing, heating equipment, hydronics, installation, operation, troubleshooting, and maintenance.

Practice Natural Gas navigation. Become comfortable finding requirements for pipe sizing, valves, connectors, materials, supports, testing, installation, and assembly.

Use live virtual training to organize your preparation. Instructor-led sessions provide a structured environment for working through technical subjects and connecting reference material with HVAC/R concepts.

Continue with self-study between live sessions. Revisit difficult topics, practice reference searches, work calculations, and reinforce areas where additional repetition is needed.

Practice at the exam pace. Work toward completing 60 questions within 180 minutes. Learn to answer familiar questions efficiently while reserving additional time for code searches and calculations.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Oklahoma HVACR Limited Journeyman candidates prepare through a combination of organized live virtual instruction and self-study guidance centered on the technical subjects used on the licensing examination.

Trade-focused review supports stronger understanding of electrical controls, natural gas, air distribution, refrigeration, heating systems, calculations, troubleshooting, and safety. Live training provides structure, while self-study allows candidates to reinforce difficult subjects between scheduled sessions.

Reference-navigation preparation helps candidates become more comfortable using the International Mechanical Code, International Fuel Gas Code, HVAC/R technical references, trade mathematics material, OSHA regulations, and other approved exam resources.

Practice-oriented preparation helps candidates develop a steady pace for the three-hour exam while learning when to rely on technical knowledge and when to locate an answer in an approved reference.

1 Exam Prep provides live virtual training, organized self-study preparation, HVAC/R-focused technical review, reference navigation, practice-oriented study, and confidence-building structure to support professionals pursuing the Oklahoma HVAC/R Limited Journeyman license.

FAQ Section

Who licenses HVACR Limited Journeymen in Oklahoma?

The Oklahoma Construction Industries Board administers mechanical licensing, including the HVAC/R Limited Journeyman classification.

Who administers the Oklahoma HVACR Limited Journeyman exam?

PSI administers the examination after the Oklahoma Construction Industries Board determines that an applicant is eligible to test.

Is the Oklahoma HVACR Limited Journeyman exam open book?

Yes. The current examination is open book and allows approved references under PSI testing rules.

How many questions are on the exam?

The current examination contains 60 scored questions.

How much time is allowed?

Candidates receive 180 minutes, or three hours.

What score is required to pass?

The passing requirement is 70%, which equals 42 correct answers.

What is the largest exam category?

Electrical Knowledge and Controls is the largest individual category with 15 questions.

What are the HVACR Limited capacity limits?

The classification covers qualifying cooling systems with a capacity of no more than 25 tons and heating equipment with a heat input of no more than 500,000 Btu/h per appliance.

Does the license include natural gas piping and refrigeration?

Yes. The HVAC/R Limited classification includes qualifying sheet metal, natural gas piping, and refrigeration work along with heating and cooling systems within the Limited capacity restrictions.

Does this training include live virtual instruction?

Yes. This product combines live virtual exam preparation with organized self-study training.

Where can I see the current live class schedule?

Click Here to View the Current Live Class Schedule.

Can approved references be highlighted and tabbed?

Yes. Current testing rules allow approved references to be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted.

Can I write notes in my exam books?

No. Current testing rules prohibit written notes in approved references before and during the examination.

Does this training guarantee a passing score?

No exam-preparation program can guarantee a passing result. This training provides organized live instruction, self-study guidance, technical HVAC/R review, reference-navigation preparation, calculations, and practice-oriented study to support your preparation.