Oklahoma Refrigeration Contractor Highlighted & Tabbed Book Package

Prepare for the Oklahoma Refrigeration Contractor examination with a focused highlighted and tabbed book package built around the technical references approved for this Oklahoma mechanical contractor licensing exam. This package is designed for candidates who want their primary refrigeration, mechanical code, and construction safety references organized for study and open-book exam navigation.

The Oklahoma Refrigeration Contractor Highlighted & Tabbed Book Package includes the International Mechanical Code, 2018, Modern Refrigeration and Air Conditioning, 22nd Edition, and Code of Federal Regulations - 29 CFR Part 1926 (OSHA).

All included books are highlighted and tabbed to support a more organized study process and faster navigation through important sections. Candidates can use the prepared references while reviewing refrigeration systems, electrical knowledge and controls, refrigerants, piping, equipment and components, troubleshooting, installation, maintenance, repair, and workplace safety.

The Oklahoma Refrigeration Contractor examination is open book, so knowing how to use the approved references is an important part of preparation. A highlighted and tabbed book package gives candidates an organized starting point, but regular practice is still essential. Working directly with the books can help candidates learn which reference applies to a particular subject and where important information is located.

This package is especially useful for candidates who want to spend more time studying technical material and less time organizing their exam references. The books can be used throughout preparation to develop familiarity with chapters, code provisions, refrigeration concepts, system components, electrical controls, safety requirements, and troubleshooting information.

Exam Details

The Oklahoma Refrigeration Contractor examination tests a candidate's knowledge of the operation, installation, maintenance, repair, fabrication, alteration, and extension of refrigeration systems. The exam includes electrical components, refrigeration piping, refrigerants, refrigeration equipment, system operation, and safety.

The examination contains 80 questions. Candidates are allowed 210 minutes to complete the examination. The required passing score is 70%, with 56 correct answers identified as the passing raw score.

The examination is divided into six major content areas:

• 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 20 questions. Candidates should review general electrical theory and knowledge, motors, AC and DC circuits, meters, controls, and relays. Refrigeration contractors work with equipment that depends heavily on electrical controls, so candidates should understand how electrical components interact with refrigeration systems.

Refrigerants account for 10 questions. Study refrigerant types, refrigerant systems, and general refrigerant theory. Understanding how refrigerants behave inside a system is important for diagnosing equipment performance and interpreting operating conditions.

Piping accounts for five questions and includes piping supports, piping materials and sizes, and piping pressure tests. Candidates should understand how refrigeration piping is installed and supported and how piping systems are tested.

Refrigeration Equipment and Components accounts for 20 questions. This section includes valves, compressors, condensers, evaporators, receivers, accumulators, expansion devices, and dryers. Candidates should understand what each component does and how the components work together during the refrigeration cycle.

Refrigeration Systems Operations also accounts for 20 questions. This area includes system troubleshooting, system operation, installation, maintenance, and repair. Candidates should prepare to analyze refrigeration systems as complete systems rather than treating every component separately.

Safety accounts for five questions and includes safety training, ventilation, first aid requirements, personal protective equipment, safety data information, toxic materials, lockout/tagout procedures, and ladders.

Open Book Test

The Oklahoma Refrigeration Contractor examination is an open-book test. Candidates may bring approved reference materials into the examination center and use them while answering questions.

Approved references may be highlighted, underlined, and indexed before the examination session. Permanent tabs are permitted for organizing the books. Temporary tabs such as Post-it notes are not permitted.

Written notes may not be added to examination references before or during the test. Candidates should use their highlighted and tabbed books during preparation so they become familiar with the organization of the references without relying on handwritten notes.

The open-book format makes navigation an important exam skill. With 80 questions and 210 minutes available, candidates have an average of a little more than two and a half minutes per question. Spending too much time searching through an unfamiliar book can reduce the time available for calculations, troubleshooting, and more difficult technical questions.

A practical strategy is to identify the subject before opening a book. Mechanical code questions should lead toward the International Mechanical Code. Refrigeration theory, electrical controls, equipment, or troubleshooting questions may lead toward Modern Refrigeration and Air Conditioning. Construction safety questions may require OSHA 29 CFR Part 1926.

Highlighted sections and permanent tabs can support this process by making major subject areas easier to reach. Repeated practice with the books helps candidates learn where important information is located and how quickly they can move from a question to the appropriate reference.

Licensing Steps

1. Meet the mechanical journeyman qualifications. Oklahoma mechanical contractor applicants must meet the basic qualifications applicable to a mechanical journeyman.
2. Gain additional contractor experience. Contractor applicants must complete an additional year of qualifying mechanical trade experience beyond the journeyman-level requirement.
3. Apply for the Refrigeration Contractor classification. Oklahoma mechanical licensing is administered through the Oklahoma Construction Industries Board.
4. Receive examination eligibility. Applicants must be approved before scheduling the required contractor examinations.
5. Prepare for the Refrigeration Contractor technical examination. Study refrigeration systems, controls, refrigerants, piping, system components, troubleshooting, maintenance, repair, safety, and reference navigation.
6. Prepare for applicable contractor Business and Law requirements. Contractor candidates must satisfy the business and law examination requirements associated with Oklahoma mechanical contractor licensing.
7. Complete the required examinations. Candidates must meet the examination requirements established for contractor licensing.
8. Complete active contractor requirements. After satisfying the examination requirements, candidates must complete applicable bond, insurance, and licensing requirements before operating under an active contractor license.

State Requirements

Oklahoma mechanical contractor licensing is administered by the Oklahoma Construction Industries Board. Applicants for a mechanical contractor license must meet the same qualification requirements applicable to a mechanical journeyman and complete an additional one year of experience in the mechanical trade.

The Refrigeration Contractor classification authorizes the license holder to install, alter, modify, service, maintain, or repair refrigeration products, systems, or equipment, including associated process piping.

Oklahoma also requires a mechanical contractor to be a permanent employee, owner, partner, or officer of the mechanical firm associated with the contractor license.

Contractor licensing involves more than passing a technical examination. Candidates must complete the applicable licensing process and maintain the requirements associated with active contractor status.

Oklahoma requires bond and insurance documentation to activate a mechanical contractor license. Contractors are responsible for maintaining required coverage and complying with applicable state mechanical licensing laws and regulations.

Mechanical journeymen and contractors are also required to complete six hours of approved continuing education within the 36 months preceding license expiration.

Licensed contractors have continuing responsibilities involving supervision, licensing, compliance, advertising, contracts, and regulated mechanical work. Candidates pursuing contractor status should become familiar with these responsibilities as part of their broader licensing preparation.

Reference Books

• Included Book: International Mechanical Code, 2018
  The 2018 International Mechanical Code is the code reference used for the Oklahoma Refrigeration Contractor examination. It addresses mechanical systems, refrigeration equipment, installation requirements, piping, equipment locations, ventilation, and other mechanical provisions relevant to contractor-level work. This package provides the book highlighted and tabbed to support organized exam preparation.
• Included Book: Modern Refrigeration and Air Conditioning, 22nd Edition
  This comprehensive technical reference covers refrigeration principles, electrical theory, motors, controls, refrigerants, compressors, condensers, evaporators, piping, valves, expansion devices, system installation, troubleshooting, maintenance, and repair. The 22nd Edition is permitted for the Oklahoma Refrigeration Contractor examination and is included highlighted and tabbed.
• Included Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This federal construction safety reference contains requirements applicable to construction work. It supports preparation for exam subjects involving safety training, ventilation, first aid, personal protective equipment, toxic materials, lockout/tagout procedures, ladders, and other workplace safety requirements. The included reference is highlighted and tabbed to support efficient study.

The three references serve different purposes during preparation. Candidates should learn which book applies to each major subject and practice moving between them efficiently.

Exam Room Approved Books

• International Mechanical Code, 2018
  The 2018 edition with applicable Oklahoma revisions is an approved code reference for the Refrigeration Contractor examination.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  The 22nd Edition is permitted for the Oklahoma Refrigeration Contractor examination.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  The applicable OSHA construction regulations with current amendments are permitted for the examination.

Candidates are responsible for bringing their approved references to the examination center. The references may be highlighted, underlined, and indexed before the exam and may use permanent tabs according to examination rules.

Test Information and Study Materials

A strong Oklahoma Refrigeration Contractor study plan should be built around the six examination categories, with extra attention given to the three largest sections: Electrical Knowledge and Controls, Refrigeration Equipment and Components, and Refrigeration Systems Operations.

Electrical Knowledge and Controls accounts for one-quarter of the examination. Review general electrical theory, AC and DC circuits, motors, meters, relays, and controls. Refrigeration equipment depends on electrical systems for operation, so candidates should understand how control components affect compressors, fans, pumps, and other equipment.

Practice reading electrical information and recognizing control sequences. Candidates should understand how relays, motors, switches, thermostatic controls, and other electrical components influence refrigeration-system operation.

Refrigerants should be studied with attention to refrigerant types and refrigeration-system theory. Understanding pressure, temperature, heat transfer, and refrigerant conditions can make troubleshooting questions easier to analyze.

Piping preparation should include supports, materials, sizes, and pressure testing. Candidates should understand the importance of properly sized and supported piping and recognize how installation conditions affect system performance.

Refrigeration Equipment and Components deserves substantial attention because it accounts for 20 questions. Review compressors, condensers, evaporators, valves, receivers, accumulators, expansion devices, and dryers.

Study each component individually, then review how the components interact within a complete refrigeration cycle. Understanding the complete sequence helps candidates analyze questions that describe operating symptoms or equipment conditions.

Refrigeration Systems Operations also contains 20 questions. This section includes troubleshooting, operation, installation, maintenance, and repair. Candidates should practice evaluating how electrical conditions, refrigerant pressures, temperatures, piping, airflow, and mechanical components affect one another.

Troubleshooting preparation should focus on cause-and-effect relationships. A refrigeration-system symptom can originate from several possible conditions, so candidates should practice considering the system as a whole before selecting an answer.

Safety preparation should include the OSHA subjects listed for the examination. Review safety training requirements, ventilation, first aid, personal protective equipment, safety data information, toxic materials, lockout/tagout procedures, and ladders.

Reference navigation should be incorporated into every study session. When reviewing a practice question, identify the category first and decide which book should contain the supporting information. Use the tabs to locate the appropriate section, then confirm the answer using the reference.

The highlighted material can help direct attention toward important content, but candidates should still understand the surrounding information and overall structure of each book. Exam questions may require applying concepts rather than simply locating a highlighted sentence.

Timed study sessions can also be helpful. Since the examination provides 210 minutes for 80 questions, candidates should practice balancing faster questions with more detailed code lookups and troubleshooting problems.

A candidate who is already comfortable with refrigeration equipment but needs more work with electrical controls can dedicate additional sessions to circuits, motors, meters, relays, and controls. Someone who understands electrical systems but struggles with troubleshooting can focus more heavily on system operations.

This type of targeted preparation can help candidates use study time more effectively while maintaining coverage across all six examination categories.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Oklahoma Refrigeration Contractor candidates through organized study guidance, refrigeration-focused review, practice-oriented preparation, reference navigation, and a structured approach to contractor exam study.

The highlighted and tabbed book package gives candidates organized copies of the approved technical references so they can begin studying directly from the materials associated with the examination.

Highlighting helps identify important information during study, while permanent tabs support faster movement between major subjects. Candidates can practice using these features while reviewing refrigeration theory, electrical controls, piping, equipment, troubleshooting, mechanical code provisions, and construction safety.

1 Exam Prep encourages candidates to combine reference familiarity with technical understanding. A candidate should be able to recognize the subject of a question and know which reference is most likely to contain the answer before beginning a detailed lookup.

Practice-oriented preparation can also help candidates identify weaker subjects. If electrical controls are challenging, additional study can focus on circuits, motors, meters, relays, and controls. If equipment questions are difficult, additional review can focus on compressors, condensers, evaporators, valves, receivers, accumulators, expansion devices, and dryers.

For system-operation questions, candidates can strengthen preparation by studying troubleshooting, installation, maintenance, and repair as connected topics. Understanding how components interact can make it easier to analyze system behavior.

The goal is to create a study process that combines organized references, technical review, repetition, and open-book navigation. This approach can help candidates develop stronger familiarity with the material and a more efficient method for working through the Oklahoma Refrigeration Contractor examination.

Frequently Asked Questions

What books are included in the Oklahoma Refrigeration Contractor Highlighted & Tabbed Book Package?

The package includes the International Mechanical Code, 2018; Modern Refrigeration and Air Conditioning, 22nd Edition; and Code of Federal Regulations - 29 CFR Part 1926 (OSHA).

Are all of the books highlighted and tabbed?

Yes. All included books are highlighted and permanently tabbed to support organized study and faster reference navigation.

Is the Oklahoma Refrigeration Contractor exam open book?

Yes. The Oklahoma Refrigeration Contractor examination is an open-book test using approved reference materials.

How many questions are on the examination?

The examination contains 80 questions.

How much time is allowed?

Candidates are allowed 210 minutes to complete the examination.

What score is required to pass?

The required passing score is 70%, with 56 correct answers identified as the passing raw score.

What are the largest sections of the exam?

Electrical Knowledge and Controls, Refrigeration Equipment and Components, and Refrigeration Systems Operations each contain 20 questions.

Is Modern Refrigeration and Air Conditioning, 22nd Edition allowed?

Yes. The 22nd Edition is currently permitted for the Oklahoma Refrigeration Contractor examination.

Can highlighted references be used in the exam?

Yes. Approved references may be highlighted and underlined before the examination according to the testing rules.

Can I use permanent tabs in the exam books?

Yes. Approved references may be indexed with permanent tabs. Temporary tabs such as Post-it notes are not permitted.

What refrigeration equipment should I study?

Study valves, compressors, condensers, evaporators, receivers, accumulators, expansion devices, and dryers, along with how these components interact within a refrigeration system.

How long should I allow for my highlighted and tabbed book package order?

Please allow up to 15 business days for tabbed and highlighted book package orders.