CSLB B EXAMS ACTUAL EXAM 2026
COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉ What minimum time must you wait before caulking or grouting
new tiles? Answer: 24-48 Hours
◉ How long should you wait before installing tile on a shower pan?
Answer: 24 Hours
◉ Unstable dry rock, angular gravel, sandy loam, and cohesive soils
having compressive strengths greater than 0.5 and less than 1.5
tons/sq ft (tsf), are typical examples of: Answer: Type-B Soils
◉ If 65 street lights are fed by a 2275 volt series circuit, what is the
voltage across each light? Answer: 35V
In a series circuit, the total voltage is divided equally.
◉ For safety reasons, the maximum simple slope of an excavation,
up to 20 ft deep, in Type-B soil is: Answer: 1:1 (45°)
◉ A Pittsburgh joint is used in: Answer: HVAC ductwork
,◉ The drain for a pressure relief valve on a water heater should be
extended to: Answer: The outside of the building
◉ What is the minimum slope toward the drain of a shower pan?
Answer: 1/4" per foot (2%)
◉ What is the diameter of #3 rebar? Answer: 3/8"
◉ If a vendor fails to provide an MSDS, you have the right to call:
Answer: Cal/OSHA or DOSH
◉ When installing a door jamb, you need shims at: Answer: Both
hinge and strike sides, three on each side.
◉ Which of the following is used to adhere vinyl floors?
A. Epoxy cement
B. Asphalt mastic
C. Latex primer
D. White glue Answer: Epoxy cement
,◉ When do you need bracing for a drywall wall? Answer: Diagonal
bracing is needed every 25' for any drywall wall.
◉ How should you clear the roots from a construction site? Answer:
Clear roots to 12" below grade.
◉ Dividing watts by amps gives you: Answer: Volts
◉ The most frequent on-the-job roofing accidents are: Answer: Falls
◉ Which of the following is NOT a type of wood block flooring?
A. Parquet
B. Wood Mosaic
C. Wood Tile
D. All of the above. Answer: Wood tile
◉ Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
, D. Footings Answer: Second floor decking
◉ The tool used to carry grout needed to patch a small hole is a:
A. Hawk
B. Poling board
C. Spot board
D. Mason's scutch Answer: Spot Board
◉ Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper Answer: Copper
◉ Where do you need a fire wall?
A. Between a living room and a bedroom
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉ What minimum time must you wait before caulking or grouting
new tiles? Answer: 24-48 Hours
◉ How long should you wait before installing tile on a shower pan?
Answer: 24 Hours
◉ Unstable dry rock, angular gravel, sandy loam, and cohesive soils
having compressive strengths greater than 0.5 and less than 1.5
tons/sq ft (tsf), are typical examples of: Answer: Type-B Soils
◉ If 65 street lights are fed by a 2275 volt series circuit, what is the
voltage across each light? Answer: 35V
In a series circuit, the total voltage is divided equally.
◉ For safety reasons, the maximum simple slope of an excavation,
up to 20 ft deep, in Type-B soil is: Answer: 1:1 (45°)
◉ A Pittsburgh joint is used in: Answer: HVAC ductwork
,◉ The drain for a pressure relief valve on a water heater should be
extended to: Answer: The outside of the building
◉ What is the minimum slope toward the drain of a shower pan?
Answer: 1/4" per foot (2%)
◉ What is the diameter of #3 rebar? Answer: 3/8"
◉ If a vendor fails to provide an MSDS, you have the right to call:
Answer: Cal/OSHA or DOSH
◉ When installing a door jamb, you need shims at: Answer: Both
hinge and strike sides, three on each side.
◉ Which of the following is used to adhere vinyl floors?
A. Epoxy cement
B. Asphalt mastic
C. Latex primer
D. White glue Answer: Epoxy cement
,◉ When do you need bracing for a drywall wall? Answer: Diagonal
bracing is needed every 25' for any drywall wall.
◉ How should you clear the roots from a construction site? Answer:
Clear roots to 12" below grade.
◉ Dividing watts by amps gives you: Answer: Volts
◉ The most frequent on-the-job roofing accidents are: Answer: Falls
◉ Which of the following is NOT a type of wood block flooring?
A. Parquet
B. Wood Mosaic
C. Wood Tile
D. All of the above. Answer: Wood tile
◉ Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
, D. Footings Answer: Second floor decking
◉ The tool used to carry grout needed to patch a small hole is a:
A. Hawk
B. Poling board
C. Spot board
D. Mason's scutch Answer: Spot Board
◉ Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper Answer: Copper
◉ Where do you need a fire wall?
A. Between a living room and a bedroom
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
