ARIZONA CR-11 ELECTRICAL CONTRACTOR
EXAM – QUESTIONS AND ANSWERS |
VERIFIED AND WELL DETAILED ANSWERS |
PLUS RATIONALES | GUARANTEED PASS |
LATEST EXAM UPDATE
Core Domains
• National Electrical Code (NEC) Requirements – General Installations, Branch
Circuits, Feeders, and Services
• NEC Code Application – Wiring Methods, Materials, Overcurrent Protection,
Grounding, and Bonding
• Electrical Theory and Fundamentals – Ohm's Law, AC/DC Principles, Power
Calculations, and Voltage Drop
• Electrical Calculations – Conductor Sizing, Conduit Fill, Box Fill, Load
Calculations, and Service Sizing
• Equipment and General Requirements – Motors, Transformers, Panelboards,
Switchboards, and Lighting
• Special Occupancies and Equipment – Hazardous Locations, Health Care
Facilities, Renewable Energy, and EV Charging
• Arizona Registrar of Contractors (ROC) Laws and Regulations – Licensing,
Contractor Responsibilities, and Consumer Protection
• Electrical Safety Standards – Shock Hazards, Arc Flash, Lockout/Tagout,
OSHA Requirements, and PPE
, • Blueprint Reading and Electrical Plans – Symbols, Wiring Diagrams, One-Line
Diagrams, and Specifications
• Jobsite Management and Code Compliance – Permits, Inspections,
Documentation, and Quality Control
Introduction
This comprehensive examination preparation guide is designed for candidates
seeking licensure as an Arizona CR-11 Electrical Contractor through the Arizona
Registrar of Contractors (ROC). The exam assesses competency in the installation,
alteration, and repair of electrical wiring and equipment operating at less than 600
volts, encompassing residential, commercial, and industrial applications.
Candidates must demonstrate mastery of the National Electrical Code (NEC),
electrical theory, load calculations, grounding and bonding, overcurrent protection,
and Arizona-specific statutes and administrative rules. The multiple-choice and
scenario-based structure of this guide emphasizes real-world application, critical
thinking, and code compliance, preparing candidates for the 110-question, 240-
minute PSI-administered examination. A passing score of 70% is required for
licensure. This resource is updated to reflect the latest NEC and Arizona regulatory
changes for the 2026/2027 exam cycle.
SECTION ONE: QUESTIONS 1–100
1. What is the maximum voltage classification covered under the Arizona C-
11/CR-11 Electrical Contractor license scope?
A. 1200 volts
B. 480 volts
C. 600 volts
D. 240 volts
C. 600 volts
RATIONALE: The C-11/CR-11 Electrical Contractor license authorizes work on
,wiring and equipment used below 600 volts. This is a fundamental scope limitation
for this license classification.
2. According to NEC Table 250.66, what is the minimum size for a copper
Grounding Electrode Conductor (GEC) when the largest ungrounded service-
entrance conductor is 250 kcmil copper?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
C. 4 AWG
RATIONALE: NEC Table 250.66 specifies that when the largest ungrounded
service-entrance conductor is over 3/0 AWG through 350 kcmil copper, the
minimum size for the grounding electrode conductor is 4 AWG copper.
3. Which of the following best describes the primary purpose of grounding in an
electrical system?
A. To prevent electrical overloads
B. To provide a safe path for fault current to earth
C. To increase circuit voltage
D. To reduce conductor insulation requirements
B. To provide a safe path for fault current to earth
RATIONALE: Grounding provides a controlled path for fault current to return to
earth, reducing the risk of electric shock and equipment damage. It is a
fundamental safety measure in electrical systems.
, 4. What is the minimum number of days within which a licensed contractor
must respond in writing to a formal citation or complaint notice from the
Arizona Registrar of Contractors?
A. 5 days
B. 10 days
C. 15 days
D. 30 days
B. 10 days
RATIONALE: Arizona Revised Statutes (A.R.S.) § 32-1155 mandates that a
contractor must submit a written answer to a formal complaint or citation within 10
days of service.
5. Under the NEC, which of the following residential locations does NOT
explicitly require GFCI protection for 125-volt, 15-ampere, and 20-ampere
receptacles?
A. Unfinished basements
B. Crawl spaces at or below grade level
C. Garages
D. Finished living rooms
D. Finished living rooms
RATIONALE: NEC 210.8(A) mandates GFCI protection for areas like garages,
unfinished basements, and crawl spaces due to heightened shock risks. Finished
living rooms are not explicitly required to have GFCI protection under this section.
6. What is the minimum size of a grounded conductor (neutral) required for a
200-ampere residential service if the service-entrance conductors are 2/0
AWG copper?
EXAM – QUESTIONS AND ANSWERS |
VERIFIED AND WELL DETAILED ANSWERS |
PLUS RATIONALES | GUARANTEED PASS |
LATEST EXAM UPDATE
Core Domains
• National Electrical Code (NEC) Requirements – General Installations, Branch
Circuits, Feeders, and Services
• NEC Code Application – Wiring Methods, Materials, Overcurrent Protection,
Grounding, and Bonding
• Electrical Theory and Fundamentals – Ohm's Law, AC/DC Principles, Power
Calculations, and Voltage Drop
• Electrical Calculations – Conductor Sizing, Conduit Fill, Box Fill, Load
Calculations, and Service Sizing
• Equipment and General Requirements – Motors, Transformers, Panelboards,
Switchboards, and Lighting
• Special Occupancies and Equipment – Hazardous Locations, Health Care
Facilities, Renewable Energy, and EV Charging
• Arizona Registrar of Contractors (ROC) Laws and Regulations – Licensing,
Contractor Responsibilities, and Consumer Protection
• Electrical Safety Standards – Shock Hazards, Arc Flash, Lockout/Tagout,
OSHA Requirements, and PPE
, • Blueprint Reading and Electrical Plans – Symbols, Wiring Diagrams, One-Line
Diagrams, and Specifications
• Jobsite Management and Code Compliance – Permits, Inspections,
Documentation, and Quality Control
Introduction
This comprehensive examination preparation guide is designed for candidates
seeking licensure as an Arizona CR-11 Electrical Contractor through the Arizona
Registrar of Contractors (ROC). The exam assesses competency in the installation,
alteration, and repair of electrical wiring and equipment operating at less than 600
volts, encompassing residential, commercial, and industrial applications.
Candidates must demonstrate mastery of the National Electrical Code (NEC),
electrical theory, load calculations, grounding and bonding, overcurrent protection,
and Arizona-specific statutes and administrative rules. The multiple-choice and
scenario-based structure of this guide emphasizes real-world application, critical
thinking, and code compliance, preparing candidates for the 110-question, 240-
minute PSI-administered examination. A passing score of 70% is required for
licensure. This resource is updated to reflect the latest NEC and Arizona regulatory
changes for the 2026/2027 exam cycle.
SECTION ONE: QUESTIONS 1–100
1. What is the maximum voltage classification covered under the Arizona C-
11/CR-11 Electrical Contractor license scope?
A. 1200 volts
B. 480 volts
C. 600 volts
D. 240 volts
C. 600 volts
RATIONALE: The C-11/CR-11 Electrical Contractor license authorizes work on
,wiring and equipment used below 600 volts. This is a fundamental scope limitation
for this license classification.
2. According to NEC Table 250.66, what is the minimum size for a copper
Grounding Electrode Conductor (GEC) when the largest ungrounded service-
entrance conductor is 250 kcmil copper?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
C. 4 AWG
RATIONALE: NEC Table 250.66 specifies that when the largest ungrounded
service-entrance conductor is over 3/0 AWG through 350 kcmil copper, the
minimum size for the grounding electrode conductor is 4 AWG copper.
3. Which of the following best describes the primary purpose of grounding in an
electrical system?
A. To prevent electrical overloads
B. To provide a safe path for fault current to earth
C. To increase circuit voltage
D. To reduce conductor insulation requirements
B. To provide a safe path for fault current to earth
RATIONALE: Grounding provides a controlled path for fault current to return to
earth, reducing the risk of electric shock and equipment damage. It is a
fundamental safety measure in electrical systems.
, 4. What is the minimum number of days within which a licensed contractor
must respond in writing to a formal citation or complaint notice from the
Arizona Registrar of Contractors?
A. 5 days
B. 10 days
C. 15 days
D. 30 days
B. 10 days
RATIONALE: Arizona Revised Statutes (A.R.S.) § 32-1155 mandates that a
contractor must submit a written answer to a formal complaint or citation within 10
days of service.
5. Under the NEC, which of the following residential locations does NOT
explicitly require GFCI protection for 125-volt, 15-ampere, and 20-ampere
receptacles?
A. Unfinished basements
B. Crawl spaces at or below grade level
C. Garages
D. Finished living rooms
D. Finished living rooms
RATIONALE: NEC 210.8(A) mandates GFCI protection for areas like garages,
unfinished basements, and crawl spaces due to heightened shock risks. Finished
living rooms are not explicitly required to have GFCI protection under this section.
6. What is the minimum size of a grounded conductor (neutral) required for a
200-ampere residential service if the service-entrance conductors are 2/0
AWG copper?
