{"product_id":"arizona-plumbing-including-solar-residential-contractor-r-37-exam-online-practice-questions","title":"Arizona Plumbing, Including Solar Residential Contractor (R-37) Exam - Online Practice Questions","description":"\u003ch1 style=\"color: #d32f2f;\"\u003eArizona Plumbing, Including Solar Residential Contractor (R-37) Exam - Online Practice Questions\u003c\/h1\u003e\n\n\u003cp\u003ePrepare for the Arizona Plumbing, Including Solar Residential Contractor (R-37) exam with online practice questions designed to support focused, trade-specific exam preparation. This product includes 3 months of access, giving you a flexible way to review residential plumbing systems, fuel gas, mechanical code topics, water supply, drainage, waste and vent systems, fixtures, water heaters, backflow prevention, hydronic heating, fire sprinkler awareness, excavation safety, onsite wastewater provisions, solar water heating concepts, pipe trade math, and contractor exam-style questions.\u003c\/p\u003e\n\n\u003cp\u003eThe Arizona Plumbing, Including Solar Residential Contractor (R-37) exam is part of the Arizona contractor licensing process for applicants preparing to perform residential plumbing work within the allowed license scope. Candidates preparing for this classification should understand plumbing code requirements, fuel gas code requirements, mechanical coordination, residential water and waste systems, roof drains and storm drainage awareness, traps and interceptors, septic and sewer topics, fire sprinkler system references, boiler and hydronic concepts, underground utility awareness, and solar water or pool heating system principles.\u003c\/p\u003e\n\n\u003cp\u003eThis online practice question product helps turn study time into active review. Plumbing exam preparation requires more than reading code books from front to back. Candidates need to understand how plumbing systems function, how codes are organized, how to find reference information quickly, and how practical field conditions connect to code-based answers. With 3 months of access, you can study in sections, repeat difficult topics, review missed questions, and continue building confidence before your exam date.\u003c\/p\u003e\n\n\u003cp\u003eThe Arizona Plumbing, Including Solar Residential Contractor (R-37) Exam - Online Practice Questions product is useful for candidates who want a self-paced way to prepare before sitting for the trade exam. It can be used alongside approved reference books, highlighted and tabbed materials, classroom instruction, field experience, or independent study. The goal is to help you prepare with structure instead of reading through plumbing, fuel gas, mechanical, fire sprinkler, wastewater, pipe trades, hydronic, boiler, excavation, and solar references without a clear plan.\u003c\/p\u003e\n\n\u003cp\u003eResidential plumbing work can involve water distribution, drainage systems, venting, fixtures, water heaters, fuel gas piping, backflow prevention, indirect waste, roof drains, storm drainage, specialty fixtures, interceptors, traps, septic systems, sewer connections, hydronic heating, fire sprinkler system awareness, solar water heating, solar pool heating, piping materials, valves, pumps, controls, excavation, and safe jobsite practices. Because the R-37 classification is residential, candidates should focus on residential plumbing applications while still preparing for the broad trade knowledge tested on the exam.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat You Get\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnline Practice Questions:\u003c\/strong\u003e Trade-focused questions designed to support preparation for the Arizona Plumbing, Including Solar Residential Contractor (R-37) exam.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3 Months of Access:\u003c\/strong\u003e Study online with 3 months of access so you can review, repeat, and strengthen your preparation over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResidential Plumbing Review:\u003c\/strong\u003e Practice content supports review of water supply, drainage, waste and vent systems, fixtures, water heaters, backflow prevention, traps, interceptors, septic and sewer topics, piping, and code navigation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Gas, Mechanical, and Safety Support:\u003c\/strong\u003e Questions help reinforce fuel gas requirements, mechanical code awareness, OSHA safety, excavation hazards, underground utility awareness, and jobsite hazard recognition.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydronic, Sprinkler, and Solar Awareness:\u003c\/strong\u003e Practice helps candidates review hydronic heating, boiler concepts, fire sprinkler references, solar water heating, solar pool heating, pumps, valves, storage, piping, and controls.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Paced Study Format:\u003c\/strong\u003e Work through questions on your own schedule and return to subjects that need additional review.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Details\u003c\/h2\u003e\n\n\u003cp\u003eThe Arizona R-37 plumbing trade exam measures knowledge connected to residential plumbing systems, plumbing code requirements, fuel gas systems, mechanical coordination, water supply, drainage, waste and vent piping, fixtures, backflow prevention, roof drainage, specialty plumbing systems, hydronics, fire sprinklers, septic and sewer systems, excavation, and OSHA safety. The exam includes 100 questions, allows 240 minutes, and requires a minimum passing score of 70%.\u003c\/p\u003e\n\n\u003cp\u003eThe exam content outline includes drainage, waste, and vent systems with 15 items; indirect waste with 4 items; water supply systems with 12 items; backflow prevention with 5 items; roof drains and storm drainage with 5 items; fixtures, water heaters, and accessibility with 6 items; general plumbing knowledge with 8 items; specialty plumbing, interceptors, and traps with 5 items; fuel gas systems with 11 items; septic and sewer systems with 11 items; hydronics with 6 items; fire sprinklers with 6 items; and excavation with 6 items.\u003c\/p\u003e\n\n\u003cp\u003eDrainage, waste, and vent preparation should include pipe sizing awareness, venting methods, traps, cleanouts, fixture connections, slope, fittings, drainage layout, and residential system function. Water supply preparation should include potable water distribution, pressure awareness, valves, materials, fixture supply, protection of potable water, and backflow prevention. Fuel gas preparation should include gas piping, appliance connections, combustion air, venting, shutoff valves, regulators, pressure awareness, and safe installation practices.\u003c\/p\u003e\n\n\u003cp\u003eBecause this product includes solar preparation, candidates should also review solar water heating and pool heating concepts. Solar preparation may include collectors, pumps, storage tanks, heat exchangers, controls, open-loop and closed-loop awareness, piping, valves, system layout, and system protection. These concepts support broader plumbing preparation where solar heating connects to water, piping, pumps, and residential system design.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eOpen Book Test\u003c\/h2\u003e\n\n\u003cp\u003eThe Arizona Plumbing, Including Solar Residential Contractor (R-37) trade exam is an open-book exam. Candidates are responsible for bringing their own approved references to the examination center. The approved exam-room references include Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, International Plumbing Code, 2018, NFPA 13: Installation of Sprinkler Systems, 2019, NFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2019, NFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2019, and On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006.\u003c\/p\u003e\n\n\u003cp\u003eThe study references used for preparation include Mathematics for Plumbers and Pipefitters, 8th edition; IPT’s Pipe Trades Handbook, Robert A. Lee, 2016; Boiler Operator’s Guide, 5th Edition; Arizona 811 - Arizona Blue Stake Brochure; Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022; and Solar Water and Pool Heating Design and Installation Manual. These references support plumbing math, pipe trade tables, hydronic heating, boiler awareness, excavation safety, underground utility awareness, and solar heating system preparation, but they are not listed here as exam-room-approved materials.\u003c\/p\u003e\n\n\u003cp\u003eOpen-book testing can help prepared candidates, but it does not replace study. The exam time limit does not allow unlimited searching. Candidates should know where to find plumbing code provisions, fuel gas code requirements, mechanical code topics, OSHA safety standards, fire sprinkler reference information, and wastewater provisions before test day.\u003c\/p\u003e\n\n\u003cp\u003eReference materials may be highlighted, underlined, annotated, and indexed before the examination session. References may not be written in during the exam. Additional loose or attached papers are not permitted with approved references. Permanent tabs are allowed. Temporary removable tabs are not allowed. Candidates may use a silent, nonprinting, non-programmable calculator in the examination center.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eLicensing Steps\u003c\/h2\u003e\n\n\u003cp\u003eArizona contractor licensing is handled through the Arizona Registrar of Contractors. Applicants should begin by selecting the correct license classification for the work they plan to perform. For residential plumbing work including solar-related plumbing preparation, the relevant classification is R-37 Plumbing, Including Solar Residential Contractor.\u003c\/p\u003e\n\n\u003cp\u003eAfter selecting the correct classification, candidates should review the examination requirements tied to that license. The R-37 trade exam is one part of the licensing process. Contractor applicants may also need to complete the Arizona business management or statutes and rules requirement, application requirements, qualifying party requirements, bonding requirements, experience requirements, and other items required by the Arizona Registrar of Contractors.\u003c\/p\u003e\n\n\u003cp\u003eA practical licensing plan separates exam preparation from application preparation. Exam preparation focuses on plumbing systems, code navigation, fuel gas, mechanical coordination, water supply, DWV systems, backflow prevention, fixtures, hydronics, fire sprinklers, septic and sewer systems, excavation, OSHA safety, and solar heating concepts. Application preparation focuses on state forms, business structure, qualifying party information, bond requirements, fees, and supporting documents.\u003c\/p\u003e\n\n\u003cp\u003eUsing online practice questions during the exam preparation phase gives structure to your study time. Questions help reveal which subjects are already familiar and which ones need more review. This makes it easier to use the 3-month access period productively and keeps preparation focused on the subjects most closely tied to the R-37 plumbing including solar exam.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eState Requirements\u003c\/h2\u003e\n\n\u003cp\u003eThe Arizona Registrar of Contractors issues contractor licenses by classification. Residential classifications apply to residential work, commercial classifications apply to commercial work, and dual classifications may apply when a contractor qualifies for both residential and commercial work. The R-37 classification is the residential plumbing contractor classification.\u003c\/p\u003e\n\n\u003cp\u003eThe plumbing classification is connected to installation, alteration, and repair of plumbing systems within the allowed Arizona license scope. Candidates should prepare for residential water supply, drainage, venting, fixtures, water heaters, fuel gas piping, hydronic systems, fire sprinkler references, septic and sewer topics, excavation awareness, and solar water or pool heating concepts when included in the preparation package.\u003c\/p\u003e\n\n\u003cp\u003eResidential plumbing contractors should understand where their classification begins and ends. Work outside the license classification may require another properly licensed contractor. Candidates should also understand how plumbing work may involve coordination with mechanical, fuel gas, fire sprinkler, wastewater, hydronic heating, solar heating, building, electrical, and excavation-related requirements.\u003c\/p\u003e\n\n\u003cp\u003ePassing the trade exam is not the same as receiving a license. Applicants are responsible for meeting the full Arizona licensing requirements that apply to the classification, qualifying party, business entity, bond, application, and related state requirements. The trade exam supports the licensing process by testing technical knowledge connected to the R-37 plumbing including solar residential contractor classification.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eReference Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCode of Federal Regulations - 29 CFR Part 1926 (OSHA)\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review federal construction safety standards, including personal protective equipment, excavation, ladders, tools, material handling, fall hazards, trench awareness, and general jobsite hazard recognition.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Fuel Gas Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review fuel gas piping, appliance connections, combustion air, venting, gas pressure, shutoff valves, regulators, equipment installation, and fuel gas safety requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Mechanical Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review mechanical system provisions, equipment installation, ventilation, combustion air, hydronic awareness, mechanical safety requirements, and coordination with plumbing and fuel gas systems.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Plumbing Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe primary plumbing code reference used to study water supply, drainage, waste and vent systems, fixtures, water heaters, backflow prevention, traps, interceptors, indirect waste, storm drainage, and plumbing system requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13: Installation of Sprinkler Systems, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review sprinkler system provisions, system components, installation awareness, piping, valves, water supply coordination, and fire sprinkler system concepts.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review sprinkler system requirements and concepts for one- and two-family dwellings and manufactured homes.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review sprinkler system requirements and concepts for residential occupancies up to and including four stories in height.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUsed to review onsite wastewater provisions, septic system awareness, wastewater treatment facility requirements, and Arizona-specific wastewater topics.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMathematics for Plumbers and Pipefitters, 8th edition\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review pipe trade math, measurements, formulas, calculations, offsets, slopes, volume, area, and practical plumbing math skills.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIPT’s Pipe Trades Handbook, Robert A. Lee, 2016\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review pipe trade data, materials, fittings, valves, tables, formulas, symbols, piping practices, and field reference information.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Operator’s Guide, 5th Edition\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review boiler awareness, hot water and steam system concepts, controls, safety devices, hydronic connections, and heating system operation.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArizona 811 - Arizona Blue Stake Brochure\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review underground utility notification awareness, safe excavation practices, utility marking, and damage prevention concepts.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review hydronic heating systems, pumps, valves, boilers, piping layouts, heat transfer, controls, and residential heating system design concepts.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolar Water and Pool Heating Design and Installation Manual\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA study reference used to review solar water heating and pool heating systems, collectors, storage, pumps, controls, piping, open and closed loop concepts, and solar heating installation practices.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Room Approved Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCode of Federal Regulations - 29 CFR Part 1926 (OSHA)\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for construction safety, excavation safety, personal protective equipment, ladders, tools, material handling, and jobsite hazard questions.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Fuel Gas Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for fuel gas piping, gas-fired appliances, combustion air, venting, shutoff valves, regulators, and fuel gas safety topics.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Mechanical Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for mechanical system provisions, equipment installation, ventilation, combustion air, hydronic awareness, and system coordination topics.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational Plumbing Code, 2018\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for plumbing code questions involving water supply, drainage, waste and vent systems, fixtures, water heaters, backflow prevention, traps, interceptors, and storm drainage.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13: Installation of Sprinkler Systems, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for sprinkler system provisions, piping, valves, system components, installation awareness, and fire sprinkler concepts.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for sprinkler system provisions related to one- and two-family dwellings and manufactured homes.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2019\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for sprinkler system provisions related to residential occupancies up to and including four stories in height.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eApproved for use during the exam and used for onsite wastewater provisions, septic system topics, and Arizona wastewater requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eTest Information and Study Materials\u003c\/h2\u003e\n\n\u003cp\u003eThe Arizona R-37 exam requires preparation across residential plumbing systems, plumbing code navigation, fuel gas, mechanical coordination, water supply, drainage, waste and vent systems, fixtures, water heaters, backflow prevention, storm drainage, hydronic systems, fire sprinklers, septic and sewer systems, excavation, OSHA safety, and solar heating concepts. Candidates should study the full reference list because the exam includes both code-based questions and practical trade knowledge.\u003c\/p\u003e\n\n\u003cp\u003eInternational Plumbing Code preparation should include water distribution, sanitary drainage, venting, traps, cleanouts, fixtures, water heaters, backflow prevention, indirect waste, interceptors, storm drainage, roof drains, materials, joints, supports, and testing awareness. Candidates should become familiar with how the code is organized so they can locate requirements efficiently during open-book testing.\u003c\/p\u003e\n\n\u003cp\u003eFuel gas preparation should include piping materials, appliance connections, combustion air, venting, shutoff valves, regulators, pressure awareness, sizing awareness, and safe installation practices. The International Fuel Gas Code is important for questions involving gas-fired water heaters, boilers, appliances, and fuel gas piping conditions.\u003c\/p\u003e\n\n\u003cp\u003eHydronic preparation should include boilers, pumps, expansion tanks, valves, heat transfer, piping loops, controls, circulation, air elimination, pressure relief, system layout, and residential heating system awareness. Modern Hydronic Heating and Boiler Operator’s Guide support this part of preparation.\u003c\/p\u003e\n\n\u003cp\u003eFire sprinkler preparation should include NFPA 13, NFPA 13D, and NFPA 13R topics related to sprinkler system concepts, piping, valves, water supply coordination, residential sprinkler applications, and system component awareness. Candidates should understand which sprinkler reference applies to the type of occupancy described in a question.\u003c\/p\u003e\n\n\u003cp\u003eWastewater, septic, and excavation preparation should include onsite wastewater provisions, sewer system awareness, septic system concepts, trenching, excavation safety, underground utility marking, Arizona 811 awareness, bedding, backfill, pipe protection, and OSHA excavation safety. These topics require both trade knowledge and safety awareness.\u003c\/p\u003e\n\n\u003cp\u003eSolar preparation should include solar water heating, solar pool heating, collectors, pumps, storage tanks, heat exchangers, controls, piping, valves, open-loop and closed-loop awareness, system protection, and installation sequence. Solar Water and Pool Heating Design and Installation Manual supports this part of preparation.\u003c\/p\u003e\n\n\u003cp\u003eOnline practice questions help candidates move from passive reading to active recall. When you miss a question, use it as a signal for what to review next. Return to the related code section, OSHA standard, NFPA reference, wastewater provision, math topic, hydronic concept, solar system topic, or pipe trades reference, then practice again until the material becomes more familiar.\u003c\/p\u003e\n\n\u003cp\u003eFor open-book preparation, organize approved references before test day. Highlight important sections, use approved permanent tabs, and practice locating information while answering questions. The goal is not to search every answer from scratch. The goal is to understand plumbing topics well enough to answer efficiently and use the references when they are most helpful.\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 helps Arizona contractor candidates prepare with organized study guidance, trade-focused review, and practice-oriented exam preparation. For the Arizona Plumbing, Including Solar Residential Contractor (R-37) exam, that means supporting your study routine with questions connected to plumbing code, fuel gas, mechanical coordination, DWV systems, water supply, backflow prevention, fixtures, hydronics, fire sprinklers, wastewater, excavation, OSHA safety, and solar heating.\u003c\/p\u003e\n\n\u003cp\u003eMany experienced plumbers understand field work but still need support with the testing format. Contractor exams require careful reading, time management, reference navigation, calculation practice, and the ability to connect each question to the correct trade concept or approved reference. Online practice questions help you become more comfortable with that process before exam day.\u003c\/p\u003e\n\n\u003cp\u003e1 Exam Prep helps candidates study with structure instead of guessing what to review next. Practice questions can reveal weak areas, guide reference review, and reinforce the subjects most closely connected to the exam outline. This helps you use your 3-month access period effectively and keeps preparation focused.\u003c\/p\u003e\n\n\u003cp\u003eFor open-book exams, 1 Exam Prep also supports better reference navigation. Approved books are valuable, but they are most helpful when you know how to use them quickly. Practice-based study can help you learn when to use the International Plumbing Code, International Fuel Gas Code, International Mechanical Code, OSHA, NFPA references, wastewater provisions, and supporting study materials during preparation.\u003c\/p\u003e\n\n\u003cp\u003eThis product is designed to support confidence through preparation. It does not guarantee a passing score, license approval, state approval, or any exam outcome. It gives you a practical way to study, review, and strengthen your understanding before taking the Arizona R-37 Plumbing, Including Solar Residential Contractor exam.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eFAQ Section\u003c\/h2\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWho is this product for?\u003c\/h2\u003e\n\u003cp\u003eThis product is for candidates preparing for the Arizona Plumbing, Including Solar Residential Contractor (R-37) trade exam who want online practice questions and 3 months of access for self-paced study.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow long do I get access?\u003c\/h2\u003e\n\u003cp\u003eThis product includes 3 months of access. During that period, you can work through online practice questions, review missed topics, and continue studying at your own pace.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs the Arizona R-37 exam open book?\u003c\/h2\u003e\n\u003cp\u003eYes. The Arizona R-37 Plumbing, Including Solar Residential Contractor trade exam is open book and allows approved references into the examination center.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhich books are allowed into the exam room?\u003c\/h2\u003e\n\u003cp\u003eThe approved exam-room references include OSHA 29 CFR Part 1926, International Fuel Gas Code 2018, International Mechanical Code 2018, International Plumbing Code 2018, NFPA 13 2019, NFPA 13D 2019, NFPA 13R 2019, and the Arizona onsite wastewater provisions listed for this exam.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow many questions are on the Arizona R-37 plumbing exam?\u003c\/h2\u003e\n\u003cp\u003eThe Arizona R-37 plumbing trade exam includes 100 questions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much time is allowed for the exam?\u003c\/h2\u003e\n\u003cp\u003eThe exam allows 240 minutes.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat score is needed to pass?\u003c\/h2\u003e\n\u003cp\u003eThe minimum passing score is 70%.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat subjects should I study for the R-37 exam?\u003c\/h2\u003e\n\u003cp\u003eCandidates should study DWV systems, indirect waste, water supply, backflow prevention, roof drains and storm drainage, fixtures, water heaters, fuel gas, specialty plumbing, traps, interceptors, septic and sewer systems, hydronics, fire sprinklers, excavation, OSHA safety, and solar heating concepts.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eDoes this product include solar preparation?\u003c\/h2\u003e\n\u003cp\u003eYes. This product includes solar water heating and pool heating preparation through the Solar Water and Pool Heating Design and Installation Manual.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eDoes this product include physical books?\u003c\/h2\u003e\n\u003cp\u003eThis product is for online practice questions and includes 3 months of access. Physical books are not listed as included with this product.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eCan online practice questions help with an open-book plumbing exam?\u003c\/h2\u003e\n\u003cp\u003eYes. Practice questions can help improve code navigation, topic recognition, calculation confidence, timing, reference use, and comfort with contractor exam wording before test day.\u003c\/p\u003e\n","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":46131586170937,"sku":null,"price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/AZ-PlumbingIncludingSolarResidentialR-PRACTICE.jpg?v=1782763973","url":"https:\/\/1examprep.com\/products\/arizona-plumbing-including-solar-residential-contractor-r-37-exam-online-practice-questions","provider":"1 Exam Prep","version":"1.0","type":"link"}