{"product_id":"oklahoma-refrigeration-contractor-exam-book-package","title":"Oklahoma Refrigeration Contractor Exam Book Package","description":"\u003ch1 style=\"color: #d32f2f;\"\u003eOklahoma Refrigeration Contractor Exam Book Package\u003c\/h1\u003e\n\n\u003cp\u003ePrepare for the Oklahoma Refrigeration Contractor examination with a focused exam book package built around the primary technical references used for this Oklahoma mechanical contractor licensing test. This package gives candidates the books needed to study refrigeration systems, electrical controls, refrigerants, piping, refrigeration equipment, system operation, troubleshooting, maintenance, repair, and construction safety.\u003c\/p\u003e\n\n\u003cp\u003eThe Oklahoma Refrigeration Contractor Exam Book Package includes the \u003cstrong\u003eInternational Mechanical Code, 2018\u003c\/strong\u003e, \u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e, and \u003cstrong\u003eCode of Federal Regulations - 29 CFR Part 1926 (OSHA)\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe Refrigeration Contractor exam requires a broad understanding of commercial refrigeration systems and the components that make those systems operate. Candidates should be comfortable with electrical theory and controls, refrigerant characteristics, piping materials and pressure testing, compressors, condensers, evaporators, receivers, accumulators, expansion devices, dryers, system troubleshooting, installation, maintenance, and repair.\u003c\/p\u003e\n\n\u003cp\u003eBecause the examination is open book, preparation should include regular use of the approved references. Candidates should learn how each book is organized and practice locating code provisions, electrical information, refrigeration concepts, component information, and safety requirements efficiently before test day.\u003c\/p\u003e\n\n\u003cp\u003eThis exam book package provides a strong foundation for candidates who want to prepare directly from the technical resources associated with the Oklahoma Refrigeration Contractor examination. Combining trade knowledge with repeated reference navigation can help create a more organized and purposeful study routine.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Details\u003c\/h2\u003e\n\n\u003cp\u003eThe Oklahoma \u003cstrong\u003eRefrigeration Contractor\u003c\/strong\u003e examination tests a candidate's knowledge of the operation, installation, maintenance, repair, fabrication, alteration, or extension of refrigeration systems. The examination includes electrical components, piping, refrigerants, refrigeration components, system operations, and safety.\u003c\/p\u003e\n\n\u003cp\u003eThe examination contains \u003cstrong\u003e80 questions\u003c\/strong\u003e. Candidates are allowed \u003cstrong\u003e210 minutes\u003c\/strong\u003e to complete the test. The required passing score is \u003cstrong\u003e70%\u003c\/strong\u003e, which corresponds to 56 correct answers.\u003c\/p\u003e\n\n\u003cp\u003eThe examination is divided into six major content areas:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Knowledge and Controls:\u003c\/strong\u003e 20 questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerants:\u003c\/strong\u003e 10 questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiping:\u003c\/strong\u003e 5 questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration Equipment and Components:\u003c\/strong\u003e 20 questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration Systems Operations:\u003c\/strong\u003e 20 questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e 5 questions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eElectrical Knowledge and Controls\u003c\/strong\u003e is a major portion of the examination. Candidates should review general electrical theory and knowledge, motors, AC and DC circuits, meters, controls, and relays. Refrigeration contractors frequently work with electrically operated equipment and control systems, making electrical troubleshooting an important part of the trade.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigerants\u003c\/strong\u003e account for 10 questions and include refrigerant types, refrigerant systems, and refrigerant theory. Candidates should understand how refrigerants behave within refrigeration systems and how system conditions affect performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePiping\u003c\/strong\u003e includes piping supports, piping materials and sizes, and piping pressure tests. Candidates should understand how refrigeration piping is installed, supported, selected, and tested as part of a complete system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigeration Equipment and Components\u003c\/strong\u003e accounts for 20 questions. This section includes valves, compressors, condensers, evaporators, receivers, accumulators, expansion devices, and dryers. Candidates should understand the purpose of each component and how the components interact during the refrigeration cycle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigeration Systems Operations\u003c\/strong\u003e also accounts for 20 questions and covers system troubleshooting, system operation, installation, maintenance, and repair. This area requires candidates to apply technical knowledge to the operation and servicing of refrigeration equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSafety\u003c\/strong\u003e portion includes construction and workplace safety topics applicable to refrigeration work. Candidates should be prepared to recognize appropriate safety practices when working around equipment, electrical systems, refrigerants, tools, ladders, and potentially hazardous working conditions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eOpen Book Test\u003c\/h2\u003e\n\n\u003cp\u003eThe Oklahoma Refrigeration Contractor examination is an \u003cstrong\u003eopen-book test\u003c\/strong\u003e. Candidates may use approved reference materials during the examination according to the testing provider's rules.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eInternational Mechanical Code, 2018\u003c\/strong\u003e with applicable Oklahoma revisions is an approved code reference for the examination. Code questions are based on the listed code edition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e is currently permitted as an examination reference. This technical textbook provides extensive coverage of refrigeration theory, equipment, electrical controls, system installation, service, troubleshooting, and related HVAC\/R subjects.\u003c\/p\u003e\n\n\u003cp\u003eThe applicable \u003cstrong\u003eCode of Federal Regulations - 29 CFR Part 1926\u003c\/strong\u003e construction safety material is also permitted for examination use and supports preparation for safety-related questions.\u003c\/p\u003e\n\n\u003cp\u003eApproved reference materials may be highlighted, underlined, and indexed before the examination session. Permanent tabs may be used to organize approved books. Temporary tabs such as Post-it notes are not permitted.\u003c\/p\u003e\n\n\u003cp\u003eThe open-book format does not replace technical preparation. Candidates have 210 minutes for 80 questions, giving an average of approximately two minutes and thirty-seven seconds per question. Searching through unfamiliar references for every answer can quickly consume available time.\u003c\/p\u003e\n\n\u003cp\u003ePractice identifying the subject of a question before opening a reference. A mechanical-code question may lead to the International Mechanical Code, while a refrigeration-theory or component question may be addressed in Modern Refrigeration and Air Conditioning. Construction safety questions may require the OSHA reference.\u003c\/p\u003e\n\n\u003cp\u003eLearning which book is most useful for each subject can make open-book preparation more efficient.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eLicensing Steps\u003c\/h2\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain qualifying mechanical trade experience.\u003c\/strong\u003e Oklahoma mechanical contractor applicants must satisfy the applicable experience requirements for contractor licensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeet journeyman-level qualifications.\u003c\/strong\u003e Contractor applicants must meet the qualification requirements applicable to an Oklahoma mechanical journeyman.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete additional contractor experience.\u003c\/strong\u003e Oklahoma requires an additional year of qualifying mechanical trade experience for contractor-level licensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply for the Refrigeration Contractor classification.\u003c\/strong\u003e Mechanical licensing is administered through the Oklahoma Construction Industries Board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceive examination eligibility.\u003c\/strong\u003e Applicants must be approved before scheduling the required contractor examinations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare for the Refrigeration Contractor examination.\u003c\/strong\u003e Study refrigeration systems, electrical controls, refrigerants, piping, components, troubleshooting, maintenance, repair, safety, and reference navigation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete the applicable contractor examinations.\u003c\/strong\u003e Contractor candidates must satisfy the technical and Business and Law examination requirements applicable to Oklahoma mechanical contractor licensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete active contractor requirements.\u003c\/strong\u003e After satisfying the examination requirements, contractors must meet applicable Oklahoma bond, insurance, and licensing requirements for active contractor status.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eState Requirements\u003c\/h2\u003e\n\n\u003cp\u003eOklahoma mechanical contractor licensing is administered through the Oklahoma Construction Industries Board. The \u003cstrong\u003eRefrigeration Contractor\u003c\/strong\u003e classification allows the license holder to install, alter, modify, service, maintain, or repair refrigeration products, systems, or equipment, including process piping associated with refrigeration work.\u003c\/p\u003e\n\n\u003cp\u003eApplicants for an Oklahoma mechanical contractor license must meet the same qualification requirements applicable to a mechanical journeyman and complete an additional \u003cstrong\u003eone year of experience in the mechanical trade\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eMechanical contractors must have the required relationship with the mechanical firm connected to the contractor license. Oklahoma requires a mechanical contractor to be a permanent employee, owner, partner, or officer of the mechanical firm.\u003c\/p\u003e\n\n\u003cp\u003ePassing the applicable examinations is one part of obtaining contractor status. Oklahoma also establishes requirements for maintaining an active mechanical contractor license, including applicable bond and commercial general liability insurance requirements.\u003c\/p\u003e\n\n\u003cp\u003eMechanical contractors are responsible for maintaining required insurance coverage and complying with Oklahoma mechanical licensing laws and regulations. Contractors must also follow applicable requirements involving apprentices, license display, supervision, and regulated mechanical work.\u003c\/p\u003e\n\n\u003cp\u003eMechanical journeymen and contractors are subject to continuing education requirements established by Oklahoma. Maintaining licensing compliance is an ongoing responsibility after the initial examination and licensing process has been completed.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eReference Books\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternational Mechanical Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 2018 International Mechanical Code is an approved code reference for the Oklahoma Refrigeration Contractor examination. It contains requirements affecting mechanical systems, refrigeration equipment, installation, ventilation, piping, equipment location, safety, and other mechanical system provisions. Candidates should become comfortable navigating the code and locating applicable chapters, definitions, and requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis comprehensive refrigeration and air-conditioning reference covers refrigeration principles, electrical fundamentals, controls, motors, refrigerants, compressors, condensers, evaporators, metering devices, piping, system operation, troubleshooting, installation, maintenance, and repair. The 22nd Edition is permitted for the Oklahoma Refrigeration Contractor examination.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eCode of Federal Regulations - 29 CFR Part 1926 (OSHA)\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis federal construction safety reference contains OSHA standards applicable to construction work. It supports preparation for safety topics involving employee protection, ventilation, first aid, personal protective equipment, hazardous materials, lockout\/tagout procedures, ladders, and other workplace safety requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese books should be used throughout preparation instead of being opened for the first time shortly before the examination. Repeated use can help candidates become more familiar with how information is organized and which reference is most useful for a particular question.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eTest Information and Study Materials\u003c\/h2\u003e\n\n\u003cp\u003eA strong Oklahoma Refrigeration Contractor study plan should be organized around the six major examination categories. Candidates should spend additional time on the larger sections while still preparing across the entire content outline.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eElectrical Knowledge and Controls\u003c\/strong\u003e accounts for 20 questions and should receive substantial preparation. Review electrical theory, voltage, current, resistance, motors, AC and DC circuits, meters, controls, and relays. Refrigeration troubleshooting often requires technicians to determine whether a system problem is electrical, mechanical, or related to refrigeration-system operation.\u003c\/p\u003e\n\n\u003cp\u003ePractice understanding control sequences rather than simply memorizing individual components. Learn how thermostats, relays, contactors, motors, and other control devices work together to start, stop, regulate, and protect refrigeration equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigerants\u003c\/strong\u003e should be studied with attention to refrigerant types, refrigerant theory, and how refrigerants operate within complete systems. Understanding pressure and temperature relationships can help candidates evaluate system behavior and recognize abnormal operating conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePiping\u003c\/strong\u003e should include piping supports, material selection, pipe sizing, and pressure testing. Candidates should understand how refrigeration piping affects system performance and why proper installation and testing are important.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigeration Equipment and Components\u003c\/strong\u003e is another 20-question category. Study compressors, condensers, evaporators, valves, receivers, accumulators, expansion devices, and dryers individually, then review how each component functions as part of the complete refrigeration cycle.\u003c\/p\u003e\n\n\u003cp\u003eFor \u003cstrong\u003ecompressors\u003c\/strong\u003e, understand their function within the refrigeration cycle and how operating problems can affect system performance. Review common compressor-related concepts and troubleshooting considerations.\u003c\/p\u003e\n\n\u003cp\u003eFor \u003cstrong\u003econdensers and evaporators\u003c\/strong\u003e, study heat transfer and the role each component plays in changing the condition of the refrigerant. Understanding refrigeration theory can make component questions easier to interpret.\u003c\/p\u003e\n\n\u003cp\u003eReview \u003cstrong\u003eexpansion devices\u003c\/strong\u003e and their role in controlling refrigerant flow. Candidates should also understand the purpose of receivers, accumulators, dryers, and common refrigeration valves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigeration Systems Operations\u003c\/strong\u003e accounts for another 20 questions and deserves significant study time. This area includes troubleshooting, system operation, installation, maintenance, and repair.\u003c\/p\u003e\n\n\u003cp\u003eTroubleshooting preparation should focus on understanding symptoms and system relationships. Instead of memorizing isolated problems, practice thinking through how pressure, temperature, airflow, refrigerant conditions, electrical controls, and equipment components interact.\u003c\/p\u003e\n\n\u003cp\u003eSystem installation and maintenance should also be reviewed carefully. Candidates should understand why proper installation procedures affect system reliability, efficiency, and service life.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSafety\u003c\/strong\u003e preparation should include the OSHA construction requirements relevant to refrigeration work. Review safety training, ventilation, first aid, personal protective equipment, hazardous materials, lockout\/tagout procedures, and ladder safety.\u003c\/p\u003e\n\n\u003cp\u003eTimed practice is useful because the exam includes 80 questions with 210 minutes available. Candidates should practice answering familiar questions efficiently and reserving additional time for technical calculations, troubleshooting questions, and reference lookups.\u003c\/p\u003e\n\n\u003cp\u003eReference navigation should be incorporated into practice sessions. Select a subject, identify which book is likely to contain the answer, and locate the applicable information. This process can help candidates become faster at moving between the International Mechanical Code, Modern Refrigeration and Air Conditioning, and OSHA material.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow 1 Exam Prep Helps You Reach Your Goal\u003c\/h2\u003e\n\n\u003cp\u003e1 Exam Prep supports Oklahoma Refrigeration Contractor candidates through organized study guidance, refrigeration trade-focused review, practice-oriented preparation, reference navigation, and a structured approach to contractor exam preparation.\u003c\/p\u003e\n\n\u003cp\u003eThis exam book package gives candidates access to technical references covering mechanical code requirements, refrigeration theory and components, electrical controls, system troubleshooting, and construction safety. Working directly from the references can help candidates connect trade knowledge with the material available during the open-book examination.\u003c\/p\u003e\n\n\u003cp\u003e1 Exam Prep encourages candidates to divide preparation into manageable categories. Electrical controls, refrigerants, piping, equipment, system operations, and safety can each be studied separately before being combined into broader practice sessions.\u003c\/p\u003e\n\n\u003cp\u003ePractice-oriented preparation can help candidates identify weaker areas. Someone who understands refrigeration theory but needs more work with electrical controls can devote additional time to circuits, motors, meters, relays, and control systems. Candidates who struggle with troubleshooting can spend more time reviewing system operation and diagnostic principles.\u003c\/p\u003e\n\n\u003cp\u003eReference navigation is also an important part of preparation. Candidates should learn where mechanical code requirements are located, how Modern Refrigeration and Air Conditioning is organized, and where important OSHA safety topics can be found.\u003c\/p\u003e\n\n\u003cp\u003eA structured study routine can help candidates approach a broad 80-question contractor examination more systematically. The goal is to strengthen technical knowledge, improve familiarity with refrigeration systems, build efficient reference-navigation habits, and develop confidence through repeated preparation.\u003c\/p\u003e\n\n\u003cp\u003e1 Exam Prep provides a focused framework for candidates working toward the Oklahoma Refrigeration Contractor examination without making guarantees about passing or licensing outcomes.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat books are included in the Oklahoma Refrigeration Contractor Exam Book Package?\u003c\/h2\u003e\n\u003cp\u003eThe package includes the International Mechanical Code, 2018; Modern Refrigeration and Air Conditioning, 22nd Edition; and Code of Federal Regulations - 29 CFR Part 1926 covering OSHA construction standards.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs the Oklahoma Refrigeration Contractor exam open book?\u003c\/h2\u003e\n\u003cp\u003eYes. The Oklahoma Refrigeration Contractor examination is an open-book test using approved reference materials.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow many questions are on the exam?\u003c\/h2\u003e\n\u003cp\u003eThe Oklahoma Refrigeration Contractor examination contains 80 questions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much time is allowed for the exam?\u003c\/h2\u003e\n\u003cp\u003eCandidates are allowed 210 minutes to complete the examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat score is required to pass?\u003c\/h2\u003e\n\u003cp\u003eThe required passing score is 70%, which corresponds to 56 correct answers.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat are the largest sections of the exam?\u003c\/h2\u003e\n\u003cp\u003eElectrical Knowledge and Controls, Refrigeration Equipment and Components, and Refrigeration Systems Operations each contain 20 questions and together make up the majority of the examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat refrigeration components should I study?\u003c\/h2\u003e\n\u003cp\u003eStudy valves, compressors, condensers, evaporators, receivers, accumulators, expansion devices, and dryers, along with how these components operate together within a refrigeration system.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eDoes the exam include electrical questions?\u003c\/h2\u003e\n\u003cp\u003eYes. Electrical Knowledge and Controls accounts for 20 questions and includes electrical theory, motors, AC and DC circuits, meters, controls, and relays.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs Modern Refrigeration and Air Conditioning, 22nd Edition allowed for the exam?\u003c\/h2\u003e\n\u003cp\u003eYes. The 22nd Edition is currently permitted as a reference for the Oklahoma Refrigeration Contractor examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhy is OSHA 29 CFR Part 1926 included?\u003c\/h2\u003e\n\u003cp\u003eThe examination includes workplace and construction safety topics, and 29 CFR Part 1926 contains OSHA requirements relevant to construction and mechanical work.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat does an Oklahoma Refrigeration Contractor license cover?\u003c\/h2\u003e\n\u003cp\u003eThe classification allows the license holder to install, alter, modify, service, maintain, or repair refrigeration products, systems, or equipment, including associated process piping.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow should I use these books while studying?\u003c\/h2\u003e\n\u003cp\u003eUse the references alongside practice-oriented study. Become familiar with where code requirements, electrical information, refrigeration theory, component information, troubleshooting material, and safety requirements are located so reference navigation becomes more efficient.\u003c\/p\u003e\n","brand":"1 Exam Prep","offers":[{"title":"Book Package","offer_id":46309358993465,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true},{"title":"Highlighted \u0026 Tabbed Book Package [+$300]","offer_id":46309359026233,"sku":null,"price":795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/2026NEWPRODUCTS-56-OK-REFRIGERATION-BOOKS.jpg?v=1786579134","url":"https:\/\/1examprep.com\/products\/oklahoma-refrigeration-contractor-exam-book-package","provider":"1 Exam Prep","version":"1.0","type":"link"}