AZ CR-11 COMMERCIAL & RESIDENTIAL ELECTRICAL
LICENSE PRACTICE TEST BANK 2026
This comprehensive study guide contains verified practice questions
and answers for the Arizona CR-11 Electrical Contractor license exam. It
delivers precise trade knowledge based on the National Electrical Code
alongside critical Arizona Registrar of Contractors statutes and business
law requirements. Every multiple-choice question features an italicized
correct answer and a bold, italicized rationale to maximize study
efficiency and exam success.
1. Under the National Electrical Code (NEC), what is the
minimum sizing for a copper Grounding Electrode
Conductor (GEC) when the ungrounded service-
entrance conductors are 250 kcmil copper?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
Answer: C. 4 AWG
Rationale: According to NEC Table 250.66, 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.
2. According to Arizona Registrar of Contractors (ROC)
rules, within how many days must a licensed contractor
,respond in writing to a formal citation or complaint
notice?
A. 5 days
B. 10 days
C. 15 days
D. 30 days
Answer: 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.
3. 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
Answer: 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, but standard
,finished living rooms do not require GFCI protection
under general rules.
4. What is the maximum distance a worker can travel to
reach a portable fire extinguisher in a commercial
electrical shop where Class A fire hazards exist?
A. 50 feet
B. 75 feet
C. 100 feet
D. 150 feet
Answer: B. 75 feet
Rationale: OSHA standard 1910.157(d)(2) dictates that
travel distance to any portable fire extinguisher for
Class A hazards must not exceed 75 feet.
5. What is the minimum clear working space depth in
front of electrical equipment operating at 480 volts to
ground where there are exposed live parts on one side
and a grounded surface on the other (Condition 2)?
A. 3 feet
B. 3.5 feet
C. 4 feet
D. 4.5 feet
Answer: B. 3.5 feet
Rationale: NEC Table 110.26(A)(1) specifies that for
, Condition 2 (exposed live parts on one side and
grounded parts on the other) operating at a voltage-to-
ground of 151–600 volts, the minimum clear working
depth is 3.5 feet.
6. In Arizona, what is the maximum contract value a
handyman can work on without holding a valid
contractor's license (commonly known as the
handyman exemption)?
A. $500 total, including material and labor
B. $1,000 total, including material and labor
C. $2,500 total, including material and labor
D. There is no monetary exemption if a building permit is
required
Answer: D. There is no monetary exemption if a building
permit is required
Rationale: While A.R.S. § 32-1121(A)(14) establishes a
$1,000 exemption threshold, the exemption is
completely voided if the work requires a local building
permit, regardless of the job price.
7. How many quarter-bends (90 degrees) are permitted
between pull points in a single run of Rigid Polyvinyl
Chloride Conduit (PVC)?
LICENSE PRACTICE TEST BANK 2026
This comprehensive study guide contains verified practice questions
and answers for the Arizona CR-11 Electrical Contractor license exam. It
delivers precise trade knowledge based on the National Electrical Code
alongside critical Arizona Registrar of Contractors statutes and business
law requirements. Every multiple-choice question features an italicized
correct answer and a bold, italicized rationale to maximize study
efficiency and exam success.
1. Under the National Electrical Code (NEC), what is the
minimum sizing for a copper Grounding Electrode
Conductor (GEC) when the ungrounded service-
entrance conductors are 250 kcmil copper?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
Answer: C. 4 AWG
Rationale: According to NEC Table 250.66, 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.
2. According to Arizona Registrar of Contractors (ROC)
rules, within how many days must a licensed contractor
,respond in writing to a formal citation or complaint
notice?
A. 5 days
B. 10 days
C. 15 days
D. 30 days
Answer: 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.
3. 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
Answer: 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, but standard
,finished living rooms do not require GFCI protection
under general rules.
4. What is the maximum distance a worker can travel to
reach a portable fire extinguisher in a commercial
electrical shop where Class A fire hazards exist?
A. 50 feet
B. 75 feet
C. 100 feet
D. 150 feet
Answer: B. 75 feet
Rationale: OSHA standard 1910.157(d)(2) dictates that
travel distance to any portable fire extinguisher for
Class A hazards must not exceed 75 feet.
5. What is the minimum clear working space depth in
front of electrical equipment operating at 480 volts to
ground where there are exposed live parts on one side
and a grounded surface on the other (Condition 2)?
A. 3 feet
B. 3.5 feet
C. 4 feet
D. 4.5 feet
Answer: B. 3.5 feet
Rationale: NEC Table 110.26(A)(1) specifies that for
, Condition 2 (exposed live parts on one side and
grounded parts on the other) operating at a voltage-to-
ground of 151–600 volts, the minimum clear working
depth is 3.5 feet.
6. In Arizona, what is the maximum contract value a
handyman can work on without holding a valid
contractor's license (commonly known as the
handyman exemption)?
A. $500 total, including material and labor
B. $1,000 total, including material and labor
C. $2,500 total, including material and labor
D. There is no monetary exemption if a building permit is
required
Answer: D. There is no monetary exemption if a building
permit is required
Rationale: While A.R.S. § 32-1121(A)(14) establishes a
$1,000 exemption threshold, the exemption is
completely voided if the work requires a local building
permit, regardless of the job price.
7. How many quarter-bends (90 degrees) are permitted
between pull points in a single run of Rigid Polyvinyl
Chloride Conduit (PVC)?
