Oklahoma Refrigeration Contractor Exam Prep - Live Virtual + Self Study Training

Prepare for the Oklahoma Refrigeration Contractor examination with a structured combination of live virtual instruction and self-study training focused on the technical knowledge, reference navigation, refrigeration systems, electrical controls, piping, refrigerants, safety, and contractor business subjects connected with Oklahoma mechanical contractor licensing.

The Oklahoma Refrigeration Contractor license is regulated by the Oklahoma Construction Industries Board. This contractor classification authorizes the licensee to install, alter, modify, service, maintain, or repair refrigeration products, systems, or equipment, including process piping. Candidates pursuing this license should be prepared for both the technical Refrigeration Contractor examination and the Mechanical Business and Law examination required for mechanical contractor licensing.

The technical exam covers a broad range of refrigeration knowledge. Major areas include electrical theory and controls, motors, circuits, meters, refrigerant types and theory, refrigeration piping, compressors, condensers, evaporators, receivers, accumulators, expansion devices, dryers, troubleshooting, system operation, installation, maintenance, repair, and construction safety.

Live Virtual + Self Study Training combines instructor-led preparation with independent review. Live classes help organize the examination subjects and references into manageable study areas, while self-study allows candidates to spend additional time on electrical concepts, refrigeration components, system troubleshooting, code navigation, OSHA safety requirements, and business-law topics.

Because the examination is open book, knowing how to use the approved references efficiently is an important part of preparation. Candidates should become familiar with the International Mechanical Code, Modern Refrigeration and Air Conditioning, and 29 CFR Part 1926 before test day. Understanding where key subjects are located can help reduce unnecessary searching during a timed examination.

Exam Details

The Oklahoma Refrigeration Contractor examination is administered through PSI after examination eligibility is approved by the Oklahoma Construction Industries Board.

• Exam: Oklahoma Refrigeration Contractor
• Number of Questions: 80
• Passing Score: 70%
• Passing Raw Score: 56 correct answers
• Time Allowed: 210 minutes
• Testing Provider: PSI

The examination is divided into six major technical categories:

• Electrical Knowledge and Controls: 20 questions
• Refrigerants: 10 questions
• Piping: 5 questions
• Refrigeration Equipment and Components: 20 questions
• Refrigeration Systems Operations: 20 questions
• Safety: 5 questions

Electrical Knowledge and Controls represents a significant portion of the examination. Candidates should review general electrical theory, motors, AC and DC circuits, meters, controls, and relays. Refrigeration contractors often need to understand how electrical components interact with compressors, motors, thermostatic controls, relays, and system-protection devices.

Refrigeration Equipment and Components also contains 20 questions. Preparation should include valves, compressors, condensers, evaporators, receivers, accumulators, expansion devices, and dryers. Candidates should understand the purpose of each component and how it functions within the refrigeration cycle.

Refrigeration Systems Operations contains another 20 questions and focuses on troubleshooting, system operation, installation, maintenance, and repair. This category requires candidates to connect individual components with the overall performance of a refrigeration system.

Refrigerants account for 10 questions covering refrigerant types, refrigerant systems, and refrigeration theory. Piping accounts for five questions involving supports, materials, sizing, and pressure testing. Safety accounts for five questions and includes jobsite safety training, ventilation, first-aid requirements, personal protective equipment, hazardous materials, lockout/tagout procedures, and ladders.

Oklahoma mechanical contractor candidates also prepare for the Mechanical Business and Law examination. That examination contains 50 questions, requires 70% correct to pass, has a raw passing score of 35, and allows 120 minutes.

Business and Law preparation includes bidding and estimating, project management, contracts, financial management, labor and personnel, workers' compensation, risk management, insurance, bonds, payroll, payroll taxes, and mechanical licensing requirements.

Open Book Test

The Oklahoma Refrigeration Contractor examination is an open-book test. Candidates may use approved references while following the testing provider's rules for permitted materials.

The technical exam reference list includes the International Mechanical Code, 2018 edition with Oklahoma revisions; Modern Refrigeration and Air Conditioning; and Code of Federal Regulations - 29 CFR Part 1926 (OSHA). Later editions of non-code references may be permitted, which supports the use of Modern Refrigeration and Air Conditioning, 22nd Edition for preparation.

Reference materials may be highlighted, underlined, and indexed before the examination. Permanent tabs may be used. Temporary tabs such as Post-it notes are not permitted. Candidates should become comfortable using their references during preparation instead of relying on unfamiliar books on test day.

A strong open-book strategy begins with identifying the type of question. Electrical questions may require technical refrigeration knowledge rather than a code lookup. Mechanical installation questions may lead to the International Mechanical Code. Safety questions may require 29 CFR Part 1926. Refrigeration theory, system operation, and component questions may be supported by Modern Refrigeration and Air Conditioning.

Practice should include timed navigation. Read a question, identify the topic, select the correct reference, locate the applicable section, and determine the answer. Repeating this process can help candidates become more efficient with their books under examination conditions.

Licensing Steps

The Oklahoma Construction Industries Board regulates mechanical contractor licensing, including the Refrigeration Contractor classification. Candidates generally progress through mechanical trade experience before qualifying for contractor-level licensing.

1. Build qualifying mechanical experience. Gain verifiable experience in the refrigeration or mechanical trade under the applicable Oklahoma licensing structure.
2. Meet journeyman-level requirements. Contractor applicants must meet the qualification requirements applicable to an Oklahoma mechanical journeyman.
3. Gain additional contractor-level experience. Mechanical contractor applicants must meet the same requirements as a journeyman plus an additional one year of experience in the mechanical trade.
4. Submit the mechanical license application. Provide the Oklahoma Construction Industries Board with the required application and supporting experience documentation.
5. Receive examination approval. The Board reviews the application and determines eligibility to proceed with testing.
6. Schedule the examinations through PSI. Approved candidates arrange the applicable Refrigeration Contractor and Mechanical Business and Law examinations.
7. Prepare for the technical examination. Review electrical controls, refrigerants, piping, components, system operations, troubleshooting, repair, and safety.
8. Prepare for Mechanical Business and Law. Study estimating, contracts, project management, financial topics, labor, insurance, bonds, liens, payroll, and licensing requirements.
9. Complete the examination process. Pass the required examinations associated with the refrigeration contractor license.
10. Complete active contractor requirements. Address applicable bond, insurance, and other requirements before operating with active contractor status.

State Requirements

Oklahoma mechanical contractor applicants must meet the same basic requirements as a mechanical journeyman and obtain an additional year of mechanical trade experience before qualifying at the contractor level.

Applicants for a mechanical journeyman license must be at least 18 years old. One standard qualification pathway requires three years of verifiable experience in the mechanical trade in the category for which the applicant is applying.

Oklahoma also recognizes several combinations of approved mechanical education and field experience. Approved programs of 1,000 hours or more may be combined with one year of verifiable experience, while approved programs with fewer instructional hours may require additional field experience. Equivalent verifiable military experience and qualifying out-of-state licenses may also be considered under Oklahoma requirements.

For mechanical experience, one year of verifiable experience equals 2,000 hours. Applicants who are not already licensed and want Oklahoma mechanical experience counted toward licensing must maintain the applicable apprentice registration during the experience period, except where experience is lawfully obtained under an applicable exemption.

A Refrigeration Contractor license authorizes installation, alteration, modification, service, maintenance, and repair of refrigeration products, systems, and equipment, including process piping.

For active contractor status, Oklahoma mechanical contractors must satisfy applicable bond and commercial general liability insurance requirements. Active mechanical contractors must maintain a $5,000 corporate surety bond and evidence of at least $50,000 in commercial general liability insurance.

Reference Books

• International Mechanical Code, 2018
  This technical code reference supports preparation for mechanical installation requirements associated with refrigeration systems and equipment. Candidates should prepare using the 2018 edition with applicable Oklahoma revisions.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  This comprehensive refrigeration reference supports study of refrigeration theory, electrical controls, motors, refrigerants, compressors, condensers, evaporators, expansion devices, piping, troubleshooting, installation, maintenance, and repair.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction-safety reference supports preparation for jobsite safety topics including personal protective equipment, hazardous materials, ventilation, ladders, lockout/tagout practices, and other construction safety requirements.
• Oklahoma Mechanical Licensing Act, Oklahoma Statutes, Title 59, Chapter 43A
  This statutory reference supports preparation for Oklahoma mechanical licensing laws, license authority, regulated mechanical work, and contractor responsibilities.
• Oklahoma Mechanical Industry Regulations, Oklahoma Administrative Code, Title 158, Chapter 50
  This reference covers Oklahoma administrative rules governing mechanical licensing, contractor and journeyman classifications, apprentices, experience, active licensing, and related regulatory responsibilities.
• Oklahoma Fine Schedule of the Construction Industries Board, Oklahoma Administrative Code, Title 158, Chapter 10
  This reference supports study of Construction Industries Board compliance and enforcement topics relevant to Oklahoma contractors.
• Oklahoma Lien Law, Oklahoma Statutes, Title 42, Chapter 3
  This statutory material supports contractor business-law preparation involving construction liens, project payment issues, and related responsibilities.
• NASCLA Contractors Guide to Business, Law and Project Management, Basic 14th Edition
  This contractor business reference supports preparation in bidding, estimating, project management, contracts, financial management, labor, insurance, bonds, risk management, and other business responsibilities.
• Oklahoma Workers’ Compensation Act, Oklahoma Statutes, Title 85A, Chapter 1
  This Oklahoma statutory reference supports business-law study involving workers' compensation and employer responsibilities.

Test Information and Study Materials

A productive Oklahoma Refrigeration Contractor study plan should reflect the weighting of the technical examination. Electrical Knowledge and Controls, Refrigeration Equipment and Components, and Refrigeration Systems Operations each account for 20 questions. Together, these areas represent 60 of the 80 scored questions and deserve substantial study time.

For electrical preparation, review motors, AC and DC circuits, electrical meters, controls, relays, and general electrical theory. Focus on how electrical components interact with refrigeration equipment rather than studying electrical concepts in isolation.

For refrigeration components, learn the purpose and operation of compressors, condensers, evaporators, receivers, accumulators, expansion devices, dryers, and valves. Practice connecting individual component behavior to symptoms that may appear during troubleshooting.

For system operations, work through installation, maintenance, repair, and troubleshooting scenarios. Candidates should understand the refrigeration cycle and how pressure, temperature, refrigerant flow, airflow, electrical controls, and component condition can affect system performance.

Refrigerant preparation should include refrigerant types, refrigeration theory, and system behavior. Piping review should address materials, sizes, supports, and pressure testing. Safety review should include PPE, hazardous materials, ventilation, first aid, lockout/tagout, and ladder safety.

Mechanical Business and Law should be studied as a separate examination. Organize the material into estimating, project management, contracts, financial management, labor, workers' compensation, risk management, insurance, bonding, payroll, liens, and Oklahoma mechanical licensing requirements.

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.

Live virtual instruction gives candidates an organized way to review refrigeration theory, electrical controls, components, troubleshooting, safety, and business-law subjects. Self-study then allows students to reinforce those areas independently and spend additional time on topics that require more practice.

Combining live instruction with self-study can also help candidates develop better reference-navigation habits. After reviewing a subject during class, students can return to the applicable book, locate the relevant sections, and practice finding information without assistance.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Oklahoma Refrigeration Contractor candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and a structured approach to both technical and Mechanical Business and Law preparation.

The technical exam covers many subjects, from electrical theory and refrigerants to compressors, piping, troubleshooting, and safety. Organized preparation helps candidates break these areas into focused study blocks rather than trying to absorb the entire examination outline at once.

Practice-oriented preparation reinforces the relationship between theory and field conditions. Candidates can review component functions, system behavior, electrical controls, and troubleshooting concepts while also practicing how to locate supporting information in their references.

Reference navigation is especially useful for open-book testing. Students can practice identifying the subject, choosing the correct reference, locating the applicable section, and using the information to evaluate possible answers.

Business-law preparation helps candidates address the contractor side of licensing. Review can include bidding, estimating, project supervision, contracts, finances, employees, workers' compensation, insurance, bonds, liens, payroll, and Oklahoma mechanical licensing requirements.

By combining live virtual instruction with independent self-study, 1 Exam Prep provides a structured preparation path for candidates working toward Oklahoma Refrigeration Contractor licensing without promising a particular examination or licensing outcome.

Frequently Asked Questions

Is the Oklahoma Refrigeration Contractor exam open book?

Yes. The Oklahoma Refrigeration Contractor examination is open book. Candidates should become familiar with the approved references and the testing provider's rules for permitted materials before examination day.

How many questions are on the Oklahoma Refrigeration Contractor exam?

The technical examination contains 80 scored questions. Candidates have 210 minutes to complete the exam and need 70%, or 56 correct answers, to pass.

What are the largest sections of the Refrigeration Contractor exam?

Electrical Knowledge and Controls, Refrigeration Equipment and Components, and Refrigeration Systems Operations each contain 20 questions, making them the three largest categories.

Does the exam include troubleshooting?

Yes. Refrigeration Systems Operations includes system troubleshooting, system operation, installation, maintenance, and repair.

Does the exam include electrical questions?

Yes. Electrical Knowledge and Controls is a major exam category and includes general electrical theory, motors, AC and DC circuits, meters, controls, and relays.

Do Refrigeration Contractor candidates also take Business and Law?

Mechanical contractor candidates prepare for the Oklahoma Mechanical Business and Law examination, which contains 50 questions, allows 120 minutes, and requires 70% correct to pass.

Does this training include live virtual classes and self-study?

Yes. The program combines live virtual instruction with self-study so candidates can use organized training alongside independent review, practice questions, technical study, and reference navigation.

Where can I view the current live class schedule?

Visit the Live Class Schedule to view current training dates. The schedule is organized around the books and technical references used for exam preparation.