Arizona Electrical Residential / Commercial Contractor (CR-11) Exam - Online Exam Prep

The Arizona Electrical Residential / Commercial Contractor (CR-11) Exam - Online Exam Prep course is designed for contractors, qualifying parties, electricians, electrical installers, service technicians, photovoltaic workers, fire alarm workers, low-voltage technicians, and trade professionals preparing for the Arizona CR-11 Electrical residential and commercial contractor exam. This online exam prep product supports focused study for electrical systems, services, feeders, branch circuits, grounding and bonding, conductors, cables, raceways, boxes, overcurrent protection, motors, transformers, lighting, fire alarm systems, low voltage, photovoltaics, solar electric installation, electrical safety, and OSHA construction safety.

The Arizona CR-11 classification is the dual residential and commercial electrical contractor classification. This classification allows the scopes of work permitted by the commercial C-11 Electrical license and the residential R-11 Electrical license. The commercial electrical scope includes installation, alteration, and repair, outside public rights-of-way, of outside, overhead, and underground electrical construction and wiring in or on buildings of less than 600 volts. The residential electrical scope includes installation and repair of electrical systems. This makes the CR-11 license path important for contractors preparing to perform both residential and commercial electrical work within the authorized limits of the Arizona license classification.

This online exam prep course helps students study with structure instead of moving between disconnected references and code sections. Electrical exams require more than field experience. Students preparing for the Arizona CR-11 exam should understand electrical theory, wiring methods, service equipment, grounding and bonding, overcurrent protection, raceways, boxes, conductors, fire alarm and signaling systems, photovoltaic systems, low-voltage topics, OSHA safety, and approved reference navigation. The course is built to help students organize those topics into a practical study routine before test day.

The Arizona Electrical Residential / Commercial Contractor (CR-11) Exam - Online Exam Prep course is especially useful for experienced electrical workers who know the trade but need exam-focused preparation. Field experience is valuable, but a contractor licensing exam requires a different kind of readiness. Students must read questions carefully, identify key terms, manage time, apply code language, and find information quickly in approved references during a timed open book exam.

Because the CR-11 exam is open book for approved references, preparation should include both technical study and book navigation practice. Students should become familiar with OSHA, the 2017 National Electrical Code, and the 2016 NFPA 72 National Fire Alarm and Signaling Code before test day. Ugly’s Electrical References, Photovoltaic Systems, 3rd Edition, 2011, and The Easy Guide to Solar Electric Part II Installation Manual are also useful study references for calculations, field reference knowledge, photovoltaic system concepts, and solar electric installation review.

Exam Details

The Arizona C-11/CR-11 Electrical Commercial trade exam is administered through PSI for the Arizona Registrar of Contractors trade examination program. Arizona applicants applying for the C-11 or CR-11 Electrical Commercial classification have a choice of trade exams. They may elect to take either the NASCLA Accredited Trade Examination for Electrical Contractors or the AZ ROC Electrical Commercial exam. This page is written for the Arizona C-11/CR-11 Electrical Commercial trade exam reference set listed for this product.

The published Arizona C-11/CR-11 Electrical Commercial exam outline lists 110 questions, a minimum passing score of 70%, and 240 minutes of allowed testing time.

The exam content outline includes the following subject areas:

• General Electrical Knowledge: 6 items
• Service Feeders and Branch Circuits: 18 items
• Grounding and Bonding: 16 items
• Conductors and Cables: 12 items
• Raceways and Boxes: 15 items
• Special Occupancies and Equipment: 3 items
• Electrical Devices: 2 items
• Motors: 3 items
• Low Voltage: 2 items
• Lighting: 6 items
• Fire Detection and Alarm Systems: 5 items
• Safety: 5 items
• Overcurrent Protection: 7 items
• Photovoltaics: 10 items

The examination may include questions based on listed reference materials, trade knowledge, and general industry practices. Code questions are based on the code editions listed for the examination. For this product, the main code references include NFPA 70 – National Electrical Code, 2017 Edition, and NFPA 72 – National Fire Alarm and Signaling Code, 2016.

Because the CR-11 exam includes 110 questions, students should prepare for both speed and accuracy. The largest content areas include service feeders and branch circuits, grounding and bonding, raceways and boxes, conductors and cables, and photovoltaics. A complete study plan should also include fire detection and alarm systems, lighting, motors, low voltage, electrical devices, safety, and overcurrent protection.

Open Book Test

The Arizona CR-11 Electrical Residential / Commercial Contractor exam is an open book test for approved references. Candidates are responsible for bringing their own approved reference materials to the examination center. Only the references allowed by the testing rules may be used during the exam, and all materials must follow PSI requirements for highlighting, annotations, permanent tabs, and binding.

Reference materials may be highlighted, underlined, annotated, and indexed before the examination session. Candidates may not write, highlight, underline, or index references during the examination session. Additional papers, whether loose or attached, are not permitted with the approved references.

References may be tabbed or indexed with permanent tabs only. Permanent tabs are tabs that would tear the page if removed. Temporary removable tabs, including Post-It notes or similar removable tabs, are not allowed and must be removed before the exam begins. Downloaded references may be brought into the testing center when properly bound, such as spiral binding or hole-punched pages placed in a binder.

A silent, nonprinting, non-programmable calculator may be used in the examination center. Since the exam allows 240 minutes for 110 questions, students should practice pacing before test day. Open book testing can be helpful, but only when students already know where important information is located and can move through the references efficiently.

Licensing Steps

The Arizona Registrar of Contractors licenses and regulates contractors in Arizona. Candidates pursuing the Arizona CR-11 Electrical Residential / Commercial Contractor license should follow the Arizona ROC licensing process for the classification and business structure they plan to use.

The qualifying party is the person who completes the examination requirements for the license classification. For many applicants, the licensing process includes completing the required trade examination, completing the Arizona Statutes and Rules Training Course and Exam when required, preparing business and identification documents, completing background check requirements, obtaining the required contractor license bond, and submitting the license application to the Arizona ROC.

A practical licensing path for the Arizona CR-11 contractor license includes:

1. Confirm that the CR-11 Electrical Residential / Commercial classification matches the residential and commercial electrical work the business intends to perform.
2. Prepare for the CR-11 trade examination using the listed references and online exam prep materials.
3. Study service feeders, branch circuits, grounding and bonding, conductors, cables, raceways, boxes, overcurrent protection, fire alarm systems, lighting, photovoltaics, low voltage, and safety.
4. Complete the Arizona Statutes and Rules Training Course and Exam when required by the Arizona ROC.
5. Prepare identification, background check, qualifying party, ownership, and business documentation.
6. Obtain the required contractor license bond for the residential and commercial license classification.
7. Submit the completed Arizona contractor license application and required fees through the Arizona ROC process.
8. Respond to any application corrections or document requests from the Arizona Registrar of Contractors.

The trade exam is only one part of the licensing process. Passing the CR-11 exam does not automatically issue the contractor license. The Arizona ROC reviews the license application and supporting documents before granting the license. Applicants should make sure business names, ownership records, qualifying party information, and required documents are consistent before submitting the application.

State Requirements

The Arizona CR-11 Electrical Residential / Commercial classification is a dual specialty contractor classification. It allows the scopes of work permitted by the C-11 Electrical Commercial license and the R-11 Electrical Residential license. This dual classification supports contractors preparing to perform electrical contracting work in both residential and commercial settings under Arizona’s contractor licensing structure.

Electrical work under this classification can involve services, feeders, branch circuits, wiring methods, grounding and bonding, boxes, raceways, conductors, cables, overcurrent protection, lighting, devices, motors, low-voltage systems, fire detection and alarm systems, photovoltaic systems, and electrical safety. Work outside the authorized license classification may require a different Arizona contractor license classification or additional authorization.

Arizona contractor applicants should understand that licensing involves both exam readiness and application readiness. The Arizona ROC may require trade examination completion, SRE completion when applicable, background checks, bonding, fees, and complete application documentation. The contractor license is issued through the Arizona ROC, not through the testing provider.

After licensure, contractors should stay within the authorized scope of the CR-11 classification. Electrical work can involve safety-sensitive systems, shock hazards, fire hazards, equipment grounding, overcurrent protection, photovoltaic equipment, fire alarm systems, commercial wiring, residential wiring, and code compliance. A strong understanding of both electrical trade knowledge and the applicable references supports safer, more professional electrical work.

Reference Books

• Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  This reference supports OSHA construction safety review, including jobsite hazard recognition, safe work practices, personal protective equipment, ladders, scaffolds, tools, electrical safety, excavation awareness, and construction safety rules that may appear on the exam.
• NFPA 70 – National Electrical Code (NEC), 2017 Edition
  This primary electrical code reference supports review of wiring methods, services, feeders, branch circuits, grounding and bonding, boxes, raceways, conductors, cables, overcurrent protection, equipment, lighting, special occupancies, motors, transformers, and photovoltaic requirements.
• NFPA 72 – National Fire Alarm and Signaling Code, 2016
  This code reference supports review of fire detection, notification, alarm system requirements, signaling concepts, devices, circuits, installation practices, and fire alarm system terminology relevant to the CR-11 exam.
• Ugly’s Electrical References
  This study reference supports review of electrical formulas, calculations, wiring information, conductor data, conversions, tables, field reference material, and quick electrical concepts useful for exam preparation.
• Photovoltaic Systems, 3rd Edition, 2011
  This study reference supports review of photovoltaic system principles, solar electric components, modules, inverters, wiring, grounding, installation practices, safety, and system performance concepts.
• The Easy Guide to Solar Electric Part II Installation Manual
  This solar electric study reference supports review of photovoltaic installation practices, solar electric system components, wiring, grounding, equipment layout, installation sequence, and practical solar electric field preparation.

Exam Room Approved Books

The following references are allowed in the examination center for the Arizona C-11/CR-11 Electrical Commercial contractor exam:

• Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  Allowed OSHA construction safety reference for exam-room use, including the latest available amendments or the PSI selections version.
• NFPA 70 – National Electrical Code (NEC), 2017 Edition
  Allowed electrical code reference for exam-room use.
• NFPA 72 – National Fire Alarm and Signaling Code, 2016
  Allowed fire alarm and signaling code reference for exam-room use.

Ugly’s Electrical References, Photovoltaic Systems, 3rd Edition, 2011, and The Easy Guide to Solar Electric Part II Installation Manual are important study references for building electrical, calculation, photovoltaic, and solar installation knowledge before test day, but they are not listed as exam-room approved references for this examination. Students should use those materials during preparation, then practice navigating OSHA, NEC 2017, and NFPA 72 2016 for exam-room use.

Test Information and Study Materials

The Arizona Electrical Residential / Commercial Contractor (CR-11) Exam - Online Exam Prep course helps students review the technical areas connected to the exam outline and become more comfortable using the approved references. Since the CR-11 exam covers electrical systems, code requirements, fire alarm systems, photovoltaic systems, and safety, students should use a balanced study schedule that includes code review, trade review, calculation practice, solar review, fire alarm review, and timed exam-style questions.

For general electrical knowledge, students should review electrical theory, terminology, current, voltage, resistance, power, basic calculations, circuit behavior, and electrical system concepts. A solid foundation helps students understand code questions instead of relying only on memorization.

For service feeders and branch circuits, students should study service equipment, service conductors, panelboards, feeder sizing, branch circuit requirements, load calculations, conductor ampacity, voltage drop awareness, required circuits, and distribution concepts. This is one of the largest sections of the exam and should receive consistent study time.

For grounding and bonding, students should review grounding electrode systems, equipment grounding conductors, bonding jumpers, grounding conductors, service bonding, separately derived systems when applicable, conductor sizing, and NEC terminology. Grounding and bonding questions require careful reading because similar terms can have different meanings.

For conductors, cables, raceways, and boxes, students should review wiring methods, conductor types, cable assemblies, raceway fill concepts, box fill, support requirements, fittings, protection from physical damage, conductor identification, and installation conditions. These subjects are central to residential and commercial electrical installation work.

For overcurrent protection, students should study fuses, circuit breakers, conductor protection, equipment ratings, interrupting ratings, panelboard protection, branch circuit protection, and coordination with conductor ampacity. For lighting, devices, motors, low voltage, and special equipment, students should review common installation requirements and NEC organization.

For fire detection and alarm systems, students should review NFPA 72 terminology, initiating devices, notification appliances, signaling circuits, alarms, power supplies, installation requirements, and system basics. For photovoltaics, students should review solar modules, inverters, conductors, disconnects, grounding, labeling, overcurrent protection, installation methods, and safe solar electric practices.

For OSHA safety, students should review construction safety requirements in 29 CFR Part 1926. Electrical work may involve shock hazards, ladders, tools, personal protective equipment, housekeeping, fall hazards, trenching awareness, material handling, and safe work practices. Safety questions often use specific language, so students should become familiar with the OSHA reference before exam day.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps students prepare for the Arizona Electrical Residential / Commercial Contractor (CR-11) exam with organized online study support built for contractor licensing preparation. The course helps students focus on the exam outline, review major electrical subjects, and become more comfortable using the approved references in an open book testing environment.

This online exam prep course gives students a structured way to study general electrical knowledge, service feeders, branch circuits, grounding and bonding, conductors, cables, raceways, boxes, overcurrent protection, electrical devices, motors, lighting, low voltage, fire detection and alarm systems, photovoltaics, NEC requirements, NFPA 72 requirements, OSHA construction safety, and solar electric installation topics. Instead of trying to study every topic at once, students can work through the material in a more organized and manageable way.

1 Exam Prep also supports reference navigation. For an open book exam, students need to know more than the general topic. They need to understand how OSHA, NEC 2017, and NFPA 72 2016 are organized, where key sections are located, and how to move through the books without wasting time. Reference familiarity can make a major difference in a timed exam setting.

The course is helpful for experienced electricians, electrical installers, service technicians, photovoltaic workers, low-voltage technicians, fire alarm workers, and contractors who need exam-specific preparation. Work experience is important, but licensing exams require careful reading, pacing, and the ability to identify the best answer from multiple choices. 1 Exam Prep helps students convert field knowledge into a more exam-ready study approach.

With consistent use, students can build a stronger study routine, identify weak areas, review key references, practice applying code and trade knowledge, and approach the Arizona CR-11 exam with greater confidence. The course is promotional, practical, and realistic, supporting preparation without promising exam results, licensing approval, or business outcomes.

FAQ Section

What is the Arizona CR-11 Electrical exam?

The Arizona CR-11 Electrical exam is the trade exam used for the Arizona Electrical Residential / Commercial Contractor licensing path. It covers electrical systems, code requirements, safety, fire alarm systems, and photovoltaics.

Is the Arizona CR-11 Electrical exam open book?

Yes. The Arizona CR-11 Electrical exam is open book for approved references. Candidates must bring their own approved references and follow PSI rules for highlighting, annotations, permanent tabs, and binding.

How many questions are on the Arizona CR-11 exam?

The published Arizona C-11/CR-11 Electrical Commercial exam outline lists 110 questions.

How much time is allowed for the Arizona CR-11 exam?

The published time allowed for the Arizona C-11/CR-11 Electrical Commercial exam is 240 minutes.

What score is required to pass the Arizona CR-11 exam?

The published minimum passing score for the Arizona C-11/CR-11 Electrical Commercial exam is 70%.

What topics are covered on the Arizona CR-11 exam?

The exam outline includes general electrical knowledge, service feeders and branch circuits, grounding and bonding, conductors and cables, raceways and boxes, special occupancies and equipment, electrical devices, motors, low voltage, lighting, fire detection and alarm systems, safety, overcurrent protection, and photovoltaics.

Which references are allowed in the exam room?

The exam-room approved references include Code of Federal Regulations – 29 CFR Part 1926 (OSHA), NFPA 70 – National Electrical Code (NEC), 2017 Edition, and NFPA 72 – National Fire Alarm and Signaling Code, 2016.

Are Ugly’s Electrical References, Photovoltaic Systems, and The Easy Guide to Solar Electric Part II allowed in the exam room?

No. Ugly’s Electrical References, Photovoltaic Systems, 3rd Edition, 2011, and The Easy Guide to Solar Electric Part II Installation Manual are study references for preparation, but they are not listed as exam-room approved references for the Arizona C-11/CR-11 Electrical Commercial exam.

Can I use permanent tabs in my references?

Permanent tabs are allowed when they meet PSI rules. Temporary removable tabs are not allowed and must be removed before the exam begins.

Who should take this online exam prep course?

This course is for contractors, qualifying parties, electricians, electrical installers, service technicians, photovoltaic workers, fire alarm workers, low-voltage technicians, and trade professionals preparing for the Arizona Electrical Residential / Commercial Contractor (CR-11) exam.