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CSLB B LICENSE GENERAL CONTRACTOR EXAM
LATEST 2024/2025 QUESTIONS AND CORRECT
ANSWERS(100% CORRECT VERIFIED
ANSWERS)ALREADY GRADED A+
If unused mortar stiffens due to hydration of cement,
what must you do? - .....ANSWER ...✔✔ Discard the
mortar
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
,2|Page
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"
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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
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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:
CSLB B LICENSE GENERAL CONTRACTOR EXAM
LATEST 2024/2025 QUESTIONS AND CORRECT
ANSWERS(100% CORRECT VERIFIED
ANSWERS)ALREADY GRADED A+
If unused mortar stiffens due to hydration of cement,
what must you do? - .....ANSWER ...✔✔ Discard the
mortar
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
,2|Page
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"
,3|Page
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
, 4|Page
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:
