Arizona General Dual Residential / Commercial Contractor (KB-1) Exam - Online Exam Prep

The Arizona General Dual Residential / Commercial Contractor (KB-1) Exam - Online Exam Prep course is designed for candidates preparing for the Arizona general dual building contractor trade exam. This online course helps students study the major knowledge areas connected to residential and commercial building construction, sitework, concrete, masonry, metals, carpentry, thermal and moisture protection, doors and windows, finishes, OSHA safety, and general building code requirements.

The Arizona KB-1 Dual Building Contractor classification is one of the broadest contractor classifications in Arizona because it combines the scope of work permitted by the B-1 General Commercial Contractor and B General Residential Contractor licenses. This makes the KB-1 license a strong option for contractors who plan to work on both residential and commercial building projects. Because the classification covers a wide range of construction activity, exam preparation should be organized, detailed, and built around the official exam subjects and approved references.

This online exam prep course gives candidates a structured way to prepare for the Arizona KB-1 General Dual Residential / Commercial Contractor exam without trying to build a study plan from scratch. The exam is open book, which means students should prepare in two important ways: by learning the trade and code material, and by becoming comfortable using the approved references quickly during the test. Strong preparation includes studying the content outline, reviewing major construction topics, understanding how the code books are organized, and practicing how to locate information under time pressure.

The Arizona General Dual Residential / Commercial Contractor (KB-1) Exam - Online Exam Prep course is a strong fit for qualifying parties, residential builders, commercial builders, project managers, construction supervisors, general contractors, remodeling professionals, business owners, and experienced construction professionals preparing for Arizona contractor licensing. The course helps students review the exam subjects, connect those subjects to the listed references, and approach the exam with a more organized preparation routine.

General dual building work requires broad knowledge across many trades and project types. A dual building contractor may need to understand residential code provisions, commercial code requirements, site preparation, concrete placement, masonry work, steel joists, carpentry systems, doors, windows, finishes, building envelope protection, and OSHA construction safety. This course helps candidates study those areas in a focused format that supports exam readiness.

Exam Details

The Arizona KB-1 General Dual Residential / Commercial Contractor exam is administered through PSI for the Arizona Registrar of Contractors. The trade exam contains 100 questions, and candidates are allowed 240 minutes to complete the test. The minimum passing score is 70%.

The content outline for the Arizona general building contractor exam includes Sitework, Concrete, Masonry, Metals, Carpentry, Thermal and Moisture Protection, Doors and Windows, Finishes, Safety, and General Building Code. Sitework includes 9 items. Concrete includes 14 items. Masonry includes 10 items. Metals includes 13 items. Carpentry includes 12 items. Thermal and Moisture Protection includes 10 items. Doors and Windows includes 5 items. Finishes includes 6 items. Safety includes 12 items. General Building Code includes 9 items.

The exam is broad, so candidates should prepare across the full content outline. Concrete, metals, carpentry, safety, masonry, thermal and moisture protection, sitework, and building code topics all carry meaningful weight. Since the exam covers 100 questions, a weak area can affect the final score, especially when multiple construction disciplines are tested together.

Sitework questions may involve excavation, grading, soil conditions, trenching, backfill, compaction, drainage, and preparation of the construction site. Concrete questions may involve concrete materials, placement, curing, reinforcement awareness, formwork, slabs, footings, and quality control. Masonry questions may involve brick, block, stone, mortar, wall construction, flashing, reinforcement, and workmanship. Metals questions may involve steel joists, joist girders, structural steel handling, erection procedures, safety, and coordination with other building systems.

Carpentry questions may involve layout, framing, building materials, rough carpentry, roof and wall systems, floor systems, fasteners, and general building methods. Thermal and Moisture Protection may include waterproofing, insulation, vapor control, flashing, sealants, roofing awareness, and moisture management. Doors and Windows may include installation, openings, frames, hardware, weather protection, and code-related considerations. Finishes may include interior and exterior finish materials, surface preparation, workmanship, and installation practices. Safety questions are based on OSHA construction standards, while general building code questions are based on the applicable building codes listed for the exam.

Open Book Test

The Arizona KB-1 General Dual Residential / Commercial Contractor exam is an open book test. Candidates are responsible for bringing their own approved references to the examination center. Approved reference materials may be highlighted, underlined, annotated, and indexed before the exam session begins. Candidates may not write, highlight, underline, or index inside the references during the examination session.

Reference books may be tabbed or indexed with permanent tabs only. Permanent tabs are tabs that would tear the page if removed. Temporary tabs, removable sticky notes, and other removable tabs are not allowed and must be removed before the exam begins. Candidates may not bring loose papers or attached papers with the approved references.

If a candidate uses a permitted reference downloaded from the internet, the material must be bound before being brought into the testing center. A bound reference may be spiral bound or hole-punched and placed in a binder when allowed by the exam instructions. Candidates may use a silent, nonprinting, non-programmable calculator in the examination center.

Open book testing rewards students who study with the references before exam day. Simply bringing code books and construction references into the testing room is not enough. Candidates should know which reference supports code questions, which book supports OSHA safety, which materials support sitework and excavation, and which references help with concrete, masonry, steel, and carpentry topics. This online exam prep course supports that process by helping students study with better organization and reference awareness.

Licensing Steps

Arizona contractor licensing is handled by the Arizona Registrar of Contractors. A candidate pursuing the Arizona General Dual Residential / Commercial Contractor (KB-1) license should begin by confirming that the KB-1 dual building classification matches the type of construction work the business intends to perform. The qualifying party must complete the examination requirements connected to the license classification.

Many Arizona contractor license applicants must complete the applicable trade exam and the Arizona Statutes and Rules Training Course and Exam. The trade exam measures knowledge for the construction classification, while the statutes and rules requirement covers Arizona contractor law and regulatory responsibilities. Candidates should follow the Arizona Registrar of Contractors application process for the business structure, qualifying party, experience, bonding, and supporting documents that apply to the license being pursued.

A practical preparation path begins with identifying the correct classification, reviewing the official exam content outline, gathering the listed references, and creating a realistic study schedule. After preparation, the candidate schedules the trade exam through PSI and follows testing center rules for identification, reference materials, calculators, personal items, and exam-room conduct.

After the required examination steps are completed, the applicant continues through the Arizona Registrar of Contractors licensing process. This may include submitting the license application, identifying the qualifying party, providing business information, meeting bonding requirements, and satisfying other requirements that apply to the applicant and classification.

State Requirements

The Arizona KB-1 Dual Building Contractor classification allows the scope of work permitted by the B-1 General Commercial Contractor and the B General Residential Contractor licenses. This dual classification is intended for contractors who perform building construction work in both residential and commercial settings.

The B-1 General Commercial Contractor scope includes construction, alteration, and repair in connection with structures built, being built, or to be built for the support, shelter, and enclosure of persons, animals, chattels, or movable property. The B General Residential Contractor scope applies to residential building work. Together, the KB-1 classification gives contractors a broad dual building classification for residential and commercial construction activity.

The KB-1 classification also includes supervision, management, and direct or indirect supervision of work performed within the allowed scope. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas, and water wells must be subcontracted to an appropriately licensed contractor when required by Arizona licensing rules. Candidates should understand that the KB-1 classification is broad, but it does not remove the need to use properly licensed specialty contractors where required.

Arizona issues separate contractor license classifications for commercial work, residential work, and dual residential/commercial work. The KB-1 classification is a dual general building classification. Applicants should make sure the classification fits the type of contracting work they plan to offer before moving forward with exam preparation and licensing paperwork.

Reference Books

• Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  This construction safety reference supports study of OSHA standards used on construction jobsites, including safety rules related to excavation, fall protection, scaffolds, ladders, personal protective equipment, tools, equipment, material handling, and general hazard recognition.
• International Residential Code for One- and Two-Family Dwellings (IRC), 2018
  This code reference supports study of residential building code provisions, including construction requirements, building safety provisions, residential framing, openings, fire safety, and code organization.
• International Building Code (IBC), 2018
  This code reference supports study of commercial building code provisions, including occupancy, construction type, fire-resistance concepts, means of egress, structural provisions, building materials, and general code requirements.
• Design and Control of Concrete Mixtures, 17th Edition
  This reference supports study of concrete materials, mix design concepts, cement, aggregates, admixtures, water-cement relationships, curing, durability, and quality control for concrete work.
• Pipe and Excavation Contracting
  This reference supports study of excavation, trenching, backfill, pipe installation, sitework planning, equipment use, compaction, and underground construction practices.
• Technical Digest No. 9 – Handling and Erection of Steel Joists and Joist Girders
  This reference supports study of steel joist handling, storage, placement, erection procedures, bracing, safety considerations, and coordination of steel joist and joist girder work.
• Carpentry and Building Construction, 2016
  This reference supports study of carpentry, building materials, layout, framing, construction methods, roof and wall systems, interior work, and general building construction practices.
• Modern Masonry – Brick, Block, Stone, Clois E. Kicklighter, 10th Edition
  This reference supports study of masonry materials, brick, block, stone, mortar, wall construction, flashing, reinforcement awareness, tools, layout, and masonry workmanship.

Exam Room Approved Books

• Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  Approved for use in the exam room as the construction safety reference for OSHA-related exam topics.
• International Residential Code for One- and Two-Family Dwellings (IRC), 2018
  Approved for use in the exam room as the residential building code reference for applicable residential code provisions.
• International Building Code (IBC), 2018
  Approved for use in the exam room as the commercial building code reference for general building code questions and code-based construction requirements.

Test Information and Study Materials

The Arizona KB-1 General Dual Residential / Commercial Contractor exam covers a wide range of construction topics, so students should use a balanced study routine. A strong plan includes reading key reference sections, learning the structure of the code books, reviewing trade concepts, building approved permanent tabs, and practicing with exam-style questions. Since the exam is open book and timed, candidates should prepare to locate information quickly and answer questions efficiently.

Sitework preparation should include excavation, trenching, grading, pipe work, backfill, compaction, soil movement, and jobsite preparation. Sitework is the foundation of many construction projects, and poor site preparation can create problems throughout the building process. Candidates should understand how excavation and site conditions affect scheduling, safety, drainage, and structural performance.

Concrete preparation should include materials, batching, placing, finishing, curing, formwork, reinforcement awareness, slabs, footings, and quality control. Concrete is one of the largest exam categories, so candidates should give this subject consistent study attention. The concrete reference helps students understand how mixture design and field practices affect strength, durability, and performance.

Masonry preparation should include brick, block, stone, mortar, flashing, wall construction, reinforcement awareness, layout, openings, and workmanship. Masonry work requires understanding both material behavior and installation methods. Candidates should be familiar with common masonry terminology and construction practices.

Metals preparation should include steel joists, joist girders, handling, erection, bracing, storage, placement, and jobsite safety. Steel components require careful coordination and proper handling because they affect structural performance and worker safety. Candidates should also understand how metal systems interact with other building trades.

Carpentry preparation should include building layout, framing, materials, rough carpentry, roof systems, wall systems, floor systems, fasteners, and general construction methods. Carpentry remains a central part of building construction, even on projects that also include concrete, masonry, steel, and manufactured building components.

Thermal and Moisture Protection preparation should include waterproofing, insulation, vapor control, sealants, flashing, roofing awareness, moisture movement, and building envelope performance. These topics are important because water intrusion, poor insulation, and weak flashing details can create major building problems in both residential and commercial structures.

Doors and Windows preparation should include openings, frames, hardware, installation practices, weather protection, clearances, and code-related requirements. Finishes preparation should include surface preparation, interior and exterior finishes, materials, workmanship, and coordination with earlier construction phases.

OSHA Safety should be studied throughout the preparation process. Candidates should review fall protection, scaffolds, ladders, excavation safety, personal protective equipment, hazard communication, tools, equipment, housekeeping, and material handling. Safety is a major portion of the exam and a core responsibility for dual residential and commercial contractors.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps students prepare for the Arizona General Dual Residential / Commercial Contractor (KB-1) Exam with organized study guidance, trade-focused review, code awareness, and practice-oriented preparation. The course is designed to help candidates move through a broad set of construction topics with structure, so preparation feels more manageable and targeted.

For this exam, students need to understand residential and commercial building code requirements, OSHA safety, sitework, concrete, masonry, metals, carpentry, thermal and moisture protection, doors and windows, finishes, and construction coordination. 1 Exam Prep helps organize these areas into a clear preparation path that supports exam readiness.

Open book exams require more than owning the correct references. Students need to know how the books are arranged, how the exam topics connect to the references, and how to locate important information under time pressure. 1 Exam Prep supports this process through reference navigation guidance when applicable and an exam-focused study structure.

The course also helps students build confidence through repeated review and a more practical study routine. It does not replace hands-on residential or commercial construction experience, and it does not guarantee a passing score, license approval, or any specific outcome. It is built to help students prepare with better organization, stronger topic awareness, and more confidence as they approach the Arizona KB-1 trade exam.

FAQ Section

What is the Arizona KB-1 General Dual Residential / Commercial Contractor exam?

The Arizona KB-1 exam is the trade exam for candidates pursuing the Arizona dual building contractor classification. It covers sitework, concrete, masonry, metals, carpentry, thermal and moisture protection, doors and windows, finishes, safety, and general building code.

How many questions are on the Arizona KB-1 exam?

The exam contains 100 questions. Candidates are allowed 240 minutes to complete the test, and the minimum passing score is 70%.

Is the Arizona KB-1 General Dual Contractor exam open book?

Yes. The Arizona KB-1 exam is an open book test. Candidates may bring approved references into the testing center, but the books must follow exam-room rules for highlighting, annotations, indexing, permanent tabs, and permitted materials.

What subjects are covered on the KB-1 exam?

The exam content outline includes Sitework, Concrete, Masonry, Metals, Carpentry, Thermal and Moisture Protection, Doors and Windows, Finishes, Safety, and General Building Code.

What work is included in the Arizona KB-1 classification?

The KB-1 Dual Building Contractor classification allows the scope of work permitted by the B-1 General Commercial Contractor and the B General Residential Contractor licenses.

What is the difference between B-1 and KB-1?

B-1 is the General Commercial Contractor classification. KB-1 is the Dual Building Contractor classification, which combines the scope of the B-1 General Commercial Contractor and B General Residential Contractor licenses.

Are all listed study books allowed in the exam room?

No. Some listed references are used for study but are not allowed in the examination center. Candidates should bring only the exam-room-approved references permitted for the KB-1 exam.

Which books are approved for the exam room?

The exam-room-approved references include Code of Federal Regulations – 29 CFR Part 1926 (OSHA), International Residential Code for One- and Two-Family Dwellings (IRC), 2018, and International Building Code (IBC), 2018.

Can I use temporary tabs in my books during the exam?

No. Temporary tabs are not allowed. Approved references may be tabbed with permanent tabs only, and removable notes or tabs must be removed before the exam begins.

Who should take this online exam prep course?

This course is intended for candidates preparing for the Arizona General Dual Residential / Commercial Contractor (KB-1) Exam, including qualifying parties, residential builders, commercial builders, project managers, supervisors, business owners, and experienced construction professionals.

Does this course guarantee that I will pass the exam?

No. This course does not guarantee a passing score, license approval, or any specific exam outcome. It is designed to help students prepare through organized review, trade-focused study, code familiarization, and open book reference practice.

Why is online exam prep helpful for this general dual contractor exam?

Online exam prep helps students study with structure. It supports review of residential and commercial building topics, OSHA safety, building codes, approved references, and exam-style preparation so candidates can approach the timed open book test with better organization.