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ARIZONA ROC TRADE EXAM B-3 LICENSE EXAM 2026-
QUESTIONS LATEST 2026 – 2027 VERSION SOLVED
QUESTIONS & ANSWERS
Arizona ROC Trade Exam B-3 License – Complete Practice Exam
250 Questions with Detailed Rationales
SECTION 1: PLANNING AND ESTIMATING (Questions 1-70)
1. A contractor is preparing a bid for a commercial swimming pool project and
needs to estimate the volume of concrete required for the pool shell. The pool
measures 60 feet long, 30 feet wide, with a depth ranging from 4 feet to 8 feet. Using
the standard formula for calculating pool volume in cubic yards, what is the
approximate amount of concrete needed for the pool shell only?
A) 400 cubic yards
B) 500 cubic yards
C) 600 cubic yards
D) 700 cubic yards
E) 800 cubic yards
Correct Answer: C - The formula for pool volume is Length × Width × Average Depth ×
7.5 = gallons (for water volume). For concrete volume, use Length × Width × Average
Depth × 0.037 (conversion factor for cubic yards). Length 60 × Width 30 × Average Depth
6 × 0.037 = 399.6 cubic yards. Adding 10-15% for waste and over-excavation brings the
total to approximately 600 cubic yards .
2. When determining the required pump size for a commercial swimming pool
filtration system, which of the following factors is most critical in calculating the
proper flow rate needed to meet the minimum turnover rate required by Arizona
health regulations for public pools?
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A) The total surface area of the pool in square feet
B) The total gallons of water in the pool divided by the required turnover time in hours
C) The distance between the pump and the filter system
D) The number of swimmers expected per day
E) The type of filter media being used
Correct Answer: B - The critical calculation for pump sizing is the total gallons of water
in the pool divided by the required turnover time in hours. Arizona requires public pools
to have a complete water turnover every 6 hours. The pump must be sized to move
enough water to achieve this rate .
3. A contractor is preparing a bid for a commercial pool project and needs to
calculate the required trenching and piping costs. The main drain line must run 150
feet from the pool to the equipment pad. The trench must be 24 inches wide and 36
inches deep. What is the approximate volume of soil that must be excavated for
this trench?
A) 100 cubic feet
B) 200 cubic feet
C) 400 cubic feet
D) 900 cubic feet
E) 1,200 cubic feet
Correct Answer: D - The volume calculation is: Length × Width × Depth = 150 ft × 2 ft ×
3 ft = 900 cubic feet. This is the volume of soil that must be excavated and must be
accounted for in the bid .
4. According to Arizona ROC regulations, what is the minimum experience
requirement in the swimming pool trade that must be documented before an
individual can qualify for the B-3 license examination?
A) 1 year of journeyman-level experience
B) 2 years of journeyman-level experience
C) 3 years of journeyman-level experience
D) 4 years of journeyman-level experience
E) 5 years of journeyman-level experience
Correct Answer: D - The Arizona ROC requires a minimum of 4 years of journeyman-
level experience in the specific trade (swimming pool construction) within the last 10
years. This experience must be verified through employment affidavits .
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5. When preparing a cost estimate for a commercial pool deck, the contractor must
calculate the amount of concrete needed. The deck is 10 feet wide around a pool
that is 60 feet long and 30 feet wide. What is the approximate surface area of the
deck that needs to be poured?
A) 800 square feet
B) 1,200 square feet
C) 1,600 square feet
D) 2,000 square feet
E) 2,400 square feet
Correct Answer: D - The total area of the pool plus deck is (60+20) × (30+20) = 80 × 50 =
4,000 square feet. The pool itself is 60 × 30 = 1,800 square feet. The difference is 4,000 -
1,800 = 2,200 square feet of deck area .
6. A contractor is estimating the amount of rebar required for a commercial pool
shell. The pool is 40 feet by 20 feet, and the engineer specifies #4 rebar at 12-inch
centers both ways. Approximately how many linear feet of rebar will be needed for
the pool floor?
A) 800 linear feet
B) 1,200 linear feet
C) 1,600 linear feet
D) 2,400 linear feet
E) 3,200 linear feet
Correct Answer: D - Rebar spacing of 12 inches means one bar every foot. For a 40-foot
length, 41 bars at 20 feet = 820 feet. For a 20-foot width, 21 bars at 40 feet = 840 feet.
Total = 820 + 840 = 1,660 linear feet .
7. The Arizona ROC requires all contractors to provide proof of workers'
compensation insurance. What is the minimum coverage amount for workers'
compensation insurance required for a B-3 license holder with employees?
A) $50,000 per employee
B) $100,000 per employee
C) $250,000 per employee
D) As required by Arizona state law, which varies by classification
E) No minimum is specified, but coverage must be maintained as required by the
Industrial Commission of Arizona
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Correct Answer: E - Arizona law requires workers' compensation coverage as
mandated by the Industrial Commission of Arizona. The contractor must maintain
coverage as required by state law, and the ROC requires proof of this coverage .
8. When calculating the excavation volume for a commercial pool, the contractor
must account for the "batter" or slope of the excavation walls. What is the standard
maximum allowable slope for an excavation in stable soil, and how does this affect
the excavation volume calculation?
A) 1:1 slope, meaning the excavation must be wider at the top than at the bottom by the
depth of the excavation on each side
B) 1.5:1 slope, meaning the excavation must be wider at the top by 1.5 times the depth
on each side
C) 2:1 slope, meaning the excavation must be wider at the top by 2 times the depth on
each side
D) No slope is required if the soil is stable
E) The slope is determined solely by the engineer, and the contractor must follow the
engineered plans
Correct Answer: A - OSHA requires a 1:1 slope for stable soil, meaning for every foot of
depth, the excavation must be sloped back 1 foot. This can significantly increase the
excavation volume and must be accounted for in the estimate .
9. A contractor is preparing a bid for a commercial pool that requires a perimeter
overflow gutter system. Which of the following factors will most significantly
impact the cost of the gutter system?
A) The type of coping material being used
B) The linear footage of the pool perimeter
C) The depth of the pool
D) The type of filter system being installed
E) The brand of tile being used
Correct Answer: B - Perimeter overflow gutter systems are priced and installed based
on the linear footage of the pool perimeter. The cost increases proportionally with the
pool size and perimeter length .
10. When bidding a commercial pool project, the contractor must include the cost
of the required "safety features" mandated by the Virginia Graeme Baker Pool and
ARIZONA ROC TRADE EXAM B-3 LICENSE EXAM 2026-
QUESTIONS LATEST 2026 – 2027 VERSION SOLVED
QUESTIONS & ANSWERS
Arizona ROC Trade Exam B-3 License – Complete Practice Exam
250 Questions with Detailed Rationales
SECTION 1: PLANNING AND ESTIMATING (Questions 1-70)
1. A contractor is preparing a bid for a commercial swimming pool project and
needs to estimate the volume of concrete required for the pool shell. The pool
measures 60 feet long, 30 feet wide, with a depth ranging from 4 feet to 8 feet. Using
the standard formula for calculating pool volume in cubic yards, what is the
approximate amount of concrete needed for the pool shell only?
A) 400 cubic yards
B) 500 cubic yards
C) 600 cubic yards
D) 700 cubic yards
E) 800 cubic yards
Correct Answer: C - The formula for pool volume is Length × Width × Average Depth ×
7.5 = gallons (for water volume). For concrete volume, use Length × Width × Average
Depth × 0.037 (conversion factor for cubic yards). Length 60 × Width 30 × Average Depth
6 × 0.037 = 399.6 cubic yards. Adding 10-15% for waste and over-excavation brings the
total to approximately 600 cubic yards .
2. When determining the required pump size for a commercial swimming pool
filtration system, which of the following factors is most critical in calculating the
proper flow rate needed to meet the minimum turnover rate required by Arizona
health regulations for public pools?
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A) The total surface area of the pool in square feet
B) The total gallons of water in the pool divided by the required turnover time in hours
C) The distance between the pump and the filter system
D) The number of swimmers expected per day
E) The type of filter media being used
Correct Answer: B - The critical calculation for pump sizing is the total gallons of water
in the pool divided by the required turnover time in hours. Arizona requires public pools
to have a complete water turnover every 6 hours. The pump must be sized to move
enough water to achieve this rate .
3. A contractor is preparing a bid for a commercial pool project and needs to
calculate the required trenching and piping costs. The main drain line must run 150
feet from the pool to the equipment pad. The trench must be 24 inches wide and 36
inches deep. What is the approximate volume of soil that must be excavated for
this trench?
A) 100 cubic feet
B) 200 cubic feet
C) 400 cubic feet
D) 900 cubic feet
E) 1,200 cubic feet
Correct Answer: D - The volume calculation is: Length × Width × Depth = 150 ft × 2 ft ×
3 ft = 900 cubic feet. This is the volume of soil that must be excavated and must be
accounted for in the bid .
4. According to Arizona ROC regulations, what is the minimum experience
requirement in the swimming pool trade that must be documented before an
individual can qualify for the B-3 license examination?
A) 1 year of journeyman-level experience
B) 2 years of journeyman-level experience
C) 3 years of journeyman-level experience
D) 4 years of journeyman-level experience
E) 5 years of journeyman-level experience
Correct Answer: D - The Arizona ROC requires a minimum of 4 years of journeyman-
level experience in the specific trade (swimming pool construction) within the last 10
years. This experience must be verified through employment affidavits .
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5. When preparing a cost estimate for a commercial pool deck, the contractor must
calculate the amount of concrete needed. The deck is 10 feet wide around a pool
that is 60 feet long and 30 feet wide. What is the approximate surface area of the
deck that needs to be poured?
A) 800 square feet
B) 1,200 square feet
C) 1,600 square feet
D) 2,000 square feet
E) 2,400 square feet
Correct Answer: D - The total area of the pool plus deck is (60+20) × (30+20) = 80 × 50 =
4,000 square feet. The pool itself is 60 × 30 = 1,800 square feet. The difference is 4,000 -
1,800 = 2,200 square feet of deck area .
6. A contractor is estimating the amount of rebar required for a commercial pool
shell. The pool is 40 feet by 20 feet, and the engineer specifies #4 rebar at 12-inch
centers both ways. Approximately how many linear feet of rebar will be needed for
the pool floor?
A) 800 linear feet
B) 1,200 linear feet
C) 1,600 linear feet
D) 2,400 linear feet
E) 3,200 linear feet
Correct Answer: D - Rebar spacing of 12 inches means one bar every foot. For a 40-foot
length, 41 bars at 20 feet = 820 feet. For a 20-foot width, 21 bars at 40 feet = 840 feet.
Total = 820 + 840 = 1,660 linear feet .
7. The Arizona ROC requires all contractors to provide proof of workers'
compensation insurance. What is the minimum coverage amount for workers'
compensation insurance required for a B-3 license holder with employees?
A) $50,000 per employee
B) $100,000 per employee
C) $250,000 per employee
D) As required by Arizona state law, which varies by classification
E) No minimum is specified, but coverage must be maintained as required by the
Industrial Commission of Arizona
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Correct Answer: E - Arizona law requires workers' compensation coverage as
mandated by the Industrial Commission of Arizona. The contractor must maintain
coverage as required by state law, and the ROC requires proof of this coverage .
8. When calculating the excavation volume for a commercial pool, the contractor
must account for the "batter" or slope of the excavation walls. What is the standard
maximum allowable slope for an excavation in stable soil, and how does this affect
the excavation volume calculation?
A) 1:1 slope, meaning the excavation must be wider at the top than at the bottom by the
depth of the excavation on each side
B) 1.5:1 slope, meaning the excavation must be wider at the top by 1.5 times the depth
on each side
C) 2:1 slope, meaning the excavation must be wider at the top by 2 times the depth on
each side
D) No slope is required if the soil is stable
E) The slope is determined solely by the engineer, and the contractor must follow the
engineered plans
Correct Answer: A - OSHA requires a 1:1 slope for stable soil, meaning for every foot of
depth, the excavation must be sloped back 1 foot. This can significantly increase the
excavation volume and must be accounted for in the estimate .
9. A contractor is preparing a bid for a commercial pool that requires a perimeter
overflow gutter system. Which of the following factors will most significantly
impact the cost of the gutter system?
A) The type of coping material being used
B) The linear footage of the pool perimeter
C) The depth of the pool
D) The type of filter system being installed
E) The brand of tile being used
Correct Answer: B - Perimeter overflow gutter systems are priced and installed based
on the linear footage of the pool perimeter. The cost increases proportionally with the
pool size and perimeter length .
10. When bidding a commercial pool project, the contractor must include the cost
of the required "safety features" mandated by the Virginia Graeme Baker Pool and
