CSLB B LICENSE GENERAL
CONTRACTOR EXAM Q&A 100%
GUARANTEED PASS
If unused mortar stiffens due to hydration of cement, what must you do? -
✔✔Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? -
✔✔24-48 Hours
How long should you wait before installing tile on a shower pan? - ✔✔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: - ✔✔Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage
across each light? - ✔✔35V
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,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: - ✔✔1:1 (45°)
A Pittsburgh joint is used in: - ✔✔HVAC ductwork
The drain for a pressure relief valve on a water heater should be extended
to: - ✔✔The outside of the building
What is the minimum slope toward the drain of a shower pan? - ✔✔1/4" per
foot (2%)
What is the diameter of #3 rebar? - ✔✔3/8"
If a vendor fails to provide an MSDS, you have the right to call: -
✔✔Cal/OSHA or DOSH
When installing a door jamb, you need shims at: - ✔✔Both hinge and strike
sides, three on each side.
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,B. Asphalt mastic
C. Latex primer
D. White glue - ✔✔Epoxy cement
When do you need bracing for a drywall wall? - ✔✔Diagonal bracing is
needed every 25' for any drywall wall.
How should you clear the roots from a construction site? - ✔✔Clear roots to
12" below grade.
Dividing watts by amps gives you: - ✔✔Volts
The most frequent on-the-job roofing accidents are: - ✔✔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. - ✔✔Wood tile
Lightweight concrete is best used for:
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings - ✔✔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 - ✔✔Spot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
4
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
CONTRACTOR EXAM Q&A 100%
GUARANTEED PASS
If unused mortar stiffens due to hydration of cement, what must you do? -
✔✔Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? -
✔✔24-48 Hours
How long should you wait before installing tile on a shower pan? - ✔✔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: - ✔✔Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage
across each light? - ✔✔35V
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,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: - ✔✔1:1 (45°)
A Pittsburgh joint is used in: - ✔✔HVAC ductwork
The drain for a pressure relief valve on a water heater should be extended
to: - ✔✔The outside of the building
What is the minimum slope toward the drain of a shower pan? - ✔✔1/4" per
foot (2%)
What is the diameter of #3 rebar? - ✔✔3/8"
If a vendor fails to provide an MSDS, you have the right to call: -
✔✔Cal/OSHA or DOSH
When installing a door jamb, you need shims at: - ✔✔Both hinge and strike
sides, three on each side.
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,B. Asphalt mastic
C. Latex primer
D. White glue - ✔✔Epoxy cement
When do you need bracing for a drywall wall? - ✔✔Diagonal bracing is
needed every 25' for any drywall wall.
How should you clear the roots from a construction site? - ✔✔Clear roots to
12" below grade.
Dividing watts by amps gives you: - ✔✔Volts
The most frequent on-the-job roofing accidents are: - ✔✔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. - ✔✔Wood tile
Lightweight concrete is best used for:
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings - ✔✔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 - ✔✔Spot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
4
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
