CSLB B LICENSE GENERAL
CONTRACTOR EXAM LATEST
2024/2025 UPDATE: QUESTIONS AND
ALREADY PASSED ANSWERS
A
VI
TU
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
IS
24-48 Hours
How long should you wait before installing tile on a shower pan? - ANSWER 24
M
Hours
O
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
A
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each
N
light? - ANSWER 35V
JP
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
A
sides, three on each side.
VI
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
TU
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
IS
needed every 25' for any drywall wall.
How should you clear the roots from a construction site? - ANSWER Clear roots to
M
12" below grade.
O
Dividing watts by amps gives you: - ANSWER Volts
The most frequent on-the-job roofing accidents are: - ANSWER Falls
A
Which of the following is NOT a type of wood block flooring?
N
A. Parquet
JP
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
A
Which pipe is NOT appropriate for industrial wastes?
VI
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
TU
D. Copper - ANSWER Copper
Where do you need a fire wall?
A. Between a living room and a bedroom
IS
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
D. A separation wall between a dwelling and an attachment - ANSWER A
M
separation wall between a dwelling and an attachment.
O
What is the minimum clearance between rough ground and untreated subfloor joists? -
ANSWER 18 inches
A
Who may remove asbestos? - ANSWER Contractor with Asbestos Certification on
license.
N
Which of the following is NOT likely to be found in significant proportions in granular
JP
soil?
A. Gravel
B. Sand
C. Silt
D. Clay - ANSWER Clay
Stiles and rails are used on which of the following?
, A. Furred walls
B. Roofs
C. Windows
D. Slabs - ANSWER Windows.
A stile is the vertical edges of the window and the rails are the bottom and top.
What does a high slump test indicate? - ANSWER Too much water.
A
Metal concrete forms should be?
VI
A. Oiled
B. Watered
C. Placed against gravel
TU
D. Discarded after each use - ANSWER Oiled
What does the R mean in a description of insulation? - ANSWER Resistance
What kind of door would you install for someone with a disability?
IS
A. Automatic with minimum of 3 seconds to close
B. Automatic with maximum of 5 seconds to open
M
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANSWER Either A or C
O
Triple-walled metal chimney installations are regulated by: - ANSWER ICC
A
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
N
If you are a general contractor, you should call a specialty contractor when: - ANSWER
JP
You encounter an unfamiliar trade.
When a stairway serves a public building, what is the minimum number of steps for
which a handrail is required? - ANSWER Two
What is the minimum underlayment for asphalt shingles? - ANSWER 15 pounds
How long should you wait before sealing new tile work? - ANSWER 2 weeks
CONTRACTOR EXAM LATEST
2024/2025 UPDATE: QUESTIONS AND
ALREADY PASSED ANSWERS
A
VI
TU
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
IS
24-48 Hours
How long should you wait before installing tile on a shower pan? - ANSWER 24
M
Hours
O
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
A
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each
N
light? - ANSWER 35V
JP
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
A
sides, three on each side.
VI
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
TU
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
IS
needed every 25' for any drywall wall.
How should you clear the roots from a construction site? - ANSWER Clear roots to
M
12" below grade.
O
Dividing watts by amps gives you: - ANSWER Volts
The most frequent on-the-job roofing accidents are: - ANSWER Falls
A
Which of the following is NOT a type of wood block flooring?
N
A. Parquet
JP
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
A
Which pipe is NOT appropriate for industrial wastes?
VI
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
TU
D. Copper - ANSWER Copper
Where do you need a fire wall?
A. Between a living room and a bedroom
IS
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
D. A separation wall between a dwelling and an attachment - ANSWER A
M
separation wall between a dwelling and an attachment.
O
What is the minimum clearance between rough ground and untreated subfloor joists? -
ANSWER 18 inches
A
Who may remove asbestos? - ANSWER Contractor with Asbestos Certification on
license.
N
Which of the following is NOT likely to be found in significant proportions in granular
JP
soil?
A. Gravel
B. Sand
C. Silt
D. Clay - ANSWER Clay
Stiles and rails are used on which of the following?
, A. Furred walls
B. Roofs
C. Windows
D. Slabs - ANSWER Windows.
A stile is the vertical edges of the window and the rails are the bottom and top.
What does a high slump test indicate? - ANSWER Too much water.
A
Metal concrete forms should be?
VI
A. Oiled
B. Watered
C. Placed against gravel
TU
D. Discarded after each use - ANSWER Oiled
What does the R mean in a description of insulation? - ANSWER Resistance
What kind of door would you install for someone with a disability?
IS
A. Automatic with minimum of 3 seconds to close
B. Automatic with maximum of 5 seconds to open
M
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANSWER Either A or C
O
Triple-walled metal chimney installations are regulated by: - ANSWER ICC
A
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
N
If you are a general contractor, you should call a specialty contractor when: - ANSWER
JP
You encounter an unfamiliar trade.
When a stairway serves a public building, what is the minimum number of steps for
which a handrail is required? - ANSWER Two
What is the minimum underlayment for asphalt shingles? - ANSWER 15 pounds
How long should you wait before sealing new tile work? - ANSWER 2 weeks
