CSLB B LICENSE GENERAL CONTRACTOR
EXAM 2026 330 QUESTIONS COMPLETE
ANSWERS VERIFIED SOLUTIONS STUDY
GUIDE
⩥ 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
EXAM 2026 330 QUESTIONS COMPLETE
ANSWERS VERIFIED SOLUTIONS STUDY
GUIDE
⩥ 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
