CSLB B LICENSE GENERAL
CONTRACTOR EXAM Questions
and GRADED A+ Answers 2024
A
Update!!
VI
TU
If unused mortar stiffens due to hydration of cement, what must you do? - ANSWER
Discard the mortar
IS
What minimum time must you wait before caulking or grouting new tiles? - ANSWER
24-48 Hours
M
How long should you wait before installing tile on a shower pan? - ANSWER 24
O
Hours
Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive
A
strengths greater than 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: -
ANSWER Type-B Soils
N
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each
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
A
Cal/OSHA or DOSH
VI
When installing a door jamb, you need shims at: - ANSWER Both hinge and strike
sides, three on each side.
TU
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
B. Asphalt mastic
IS
C. Latex primer
D. White glue - ANSWER Epoxy cement
When do you need bracing for a drywall wall? - ANSWER Diagonal bracing is
M
needed every 25' for any drywall wall.
O
How should you clear the roots from a construction site? - ANSWER Clear roots to
12" below grade.
A
Dividing watts by amps gives you: - ANSWER Volts
N
The most frequent on-the-job roofing accidents are: - ANSWER Falls
Which of the following is NOT a type of wood block flooring?
JP
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
A
C. Spot board
D. Mason's scutch - ANSWER Spot Board
VI
Which pipe is NOT appropriate for industrial wastes?
TU
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper - ANSWER Copper
IS
Where do you need a fire wall?
A. Between a living room and a bedroom
M
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
O
D. A separation wall between a dwelling and an attachment - ANSWER A
separation wall between a dwelling and an attachment.
A
What is the minimum clearance between rough ground and untreated subfloor joists? -
ANSWER 18 inches
N
Who may remove asbestos? - ANSWER Contractor with Asbestos Certification on
license.
JP
Which of the following is NOT likely to be found in significant proportions in granular
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.
A
What does a high slump test indicate? - ANSWER Too much water.
VI
Metal concrete forms should be?
TU
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use - ANSWER Oiled
IS
What does the R mean in a description of insulation? - ANSWER Resistance
What kind of door would you install for someone with a disability?
M
A. Automatic with minimum of 3 seconds to close
O
B. Automatic with maximum of 5 seconds to open
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANSWER Either A or C
A
Triple-walled metal chimney installations are regulated by: - ANSWER ICC
N
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
JP
If you are a general contractor, you should call a specialty contractor when: - ANSWER
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
CONTRACTOR EXAM Questions
and GRADED A+ Answers 2024
A
Update!!
VI
TU
If unused mortar stiffens due to hydration of cement, what must you do? - ANSWER
Discard the mortar
IS
What minimum time must you wait before caulking or grouting new tiles? - ANSWER
24-48 Hours
M
How long should you wait before installing tile on a shower pan? - ANSWER 24
O
Hours
Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive
A
strengths greater than 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: -
ANSWER Type-B Soils
N
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each
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
A
Cal/OSHA or DOSH
VI
When installing a door jamb, you need shims at: - ANSWER Both hinge and strike
sides, three on each side.
TU
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
B. Asphalt mastic
IS
C. Latex primer
D. White glue - ANSWER Epoxy cement
When do you need bracing for a drywall wall? - ANSWER Diagonal bracing is
M
needed every 25' for any drywall wall.
O
How should you clear the roots from a construction site? - ANSWER Clear roots to
12" below grade.
A
Dividing watts by amps gives you: - ANSWER Volts
N
The most frequent on-the-job roofing accidents are: - ANSWER Falls
Which of the following is NOT a type of wood block flooring?
JP
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
A
C. Spot board
D. Mason's scutch - ANSWER Spot Board
VI
Which pipe is NOT appropriate for industrial wastes?
TU
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper - ANSWER Copper
IS
Where do you need a fire wall?
A. Between a living room and a bedroom
M
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
O
D. A separation wall between a dwelling and an attachment - ANSWER A
separation wall between a dwelling and an attachment.
A
What is the minimum clearance between rough ground and untreated subfloor joists? -
ANSWER 18 inches
N
Who may remove asbestos? - ANSWER Contractor with Asbestos Certification on
license.
JP
Which of the following is NOT likely to be found in significant proportions in granular
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.
A
What does a high slump test indicate? - ANSWER Too much water.
VI
Metal concrete forms should be?
TU
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use - ANSWER Oiled
IS
What does the R mean in a description of insulation? - ANSWER Resistance
What kind of door would you install for someone with a disability?
M
A. Automatic with minimum of 3 seconds to close
O
B. Automatic with maximum of 5 seconds to open
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANSWER Either A or C
A
Triple-walled metal chimney installations are regulated by: - ANSWER ICC
N
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
JP
If you are a general contractor, you should call a specialty contractor when: - ANSWER
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
