CSLB B LICENSE GENERAL
CONTRACTOR EXAM QUESTIONS
AND ANSWERS WITH 1OO%
COMPLETE SOLUTION
If unused mortar stiffens due to hydration of cement, what must you do? - ANS
Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? - ANS
24-48 Hours
How long should you wait before installing tile on a shower pan? - ANS 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: - ANS Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across
each light? - ANS 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: - ANS 1:1 (45°)
A Pittsburgh joint is used in: - ANS HVAC ductwork
The drain for a pressure relief valve on a water heater should be extended to: -
ANS The outside of the building
What is the minimum slope toward the drain of a shower pan? - ANS 1/4" per foot
(2%)
What is the diameter of #3 rebar? - ANS 3/8"
,If a vendor fails to provide an MSDS, you have the right to call: - ANS Cal/OSHA
or DOSH
When installing a door jamb, you need shims at: - ANS 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 - ANS Epoxy cement
When do you need bracing for a drywall wall? - ANS Diagonal bracing is needed
every 25' for any drywall wall.
How should you clear the roots from a construction site? - ANS Clear roots to 12"
below grade.
Dividing watts by amps gives you: - ANS Volts
The most frequent on-the-job roofing accidents are: - ANS 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. - ANS Wood tile
Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings - ANS 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 - ANS 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 - ANS 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
D. A separation wall between a dwelling and an attachment - ANS A separation
wall between a dwelling and an attachment.
What is the minimum clearance between rough ground and untreated subfloor
joists? - ANS 18 inches
Who may remove asbestos? - ANS Contractor with Asbestos Certification on
license.
Which of the following is NOT likely to be found in significant proportions in
granular soil?
A. Gravel
B. Sand
C. Silt
D. Clay - ANS Clay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs - ANS 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? - ANS Too much water.
Metal concrete forms should be?
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use - ANS Oiled
What does the R mean in a description of insulation? - ANS Resistance
What kind of door would you install for someone with a disability?
A. Automatic with minimum of 3 seconds to close
B. Automatic with maximum of 5 seconds to open
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANS Either A or C
Triple-walled metal chimney installations are regulated by: - ANS ICC
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
If you are a general contractor, you should call a specialty contractor when: - ANS
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? - ANS Two
What is the minimum underlayment for asphalt shingles? - ANS 15 pounds
How long should you wait before sealing new tile work? - ANS 2 weeks
When do you install insulation? - ANS After the electrical and plumbing are
approved.
CONTRACTOR EXAM QUESTIONS
AND ANSWERS WITH 1OO%
COMPLETE SOLUTION
If unused mortar stiffens due to hydration of cement, what must you do? - ANS
Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? - ANS
24-48 Hours
How long should you wait before installing tile on a shower pan? - ANS 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: - ANS Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across
each light? - ANS 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: - ANS 1:1 (45°)
A Pittsburgh joint is used in: - ANS HVAC ductwork
The drain for a pressure relief valve on a water heater should be extended to: -
ANS The outside of the building
What is the minimum slope toward the drain of a shower pan? - ANS 1/4" per foot
(2%)
What is the diameter of #3 rebar? - ANS 3/8"
,If a vendor fails to provide an MSDS, you have the right to call: - ANS Cal/OSHA
or DOSH
When installing a door jamb, you need shims at: - ANS 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 - ANS Epoxy cement
When do you need bracing for a drywall wall? - ANS Diagonal bracing is needed
every 25' for any drywall wall.
How should you clear the roots from a construction site? - ANS Clear roots to 12"
below grade.
Dividing watts by amps gives you: - ANS Volts
The most frequent on-the-job roofing accidents are: - ANS 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. - ANS Wood tile
Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings - ANS 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 - ANS 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 - ANS 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
D. A separation wall between a dwelling and an attachment - ANS A separation
wall between a dwelling and an attachment.
What is the minimum clearance between rough ground and untreated subfloor
joists? - ANS 18 inches
Who may remove asbestos? - ANS Contractor with Asbestos Certification on
license.
Which of the following is NOT likely to be found in significant proportions in
granular soil?
A. Gravel
B. Sand
C. Silt
D. Clay - ANS Clay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs - ANS 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? - ANS Too much water.
Metal concrete forms should be?
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use - ANS Oiled
What does the R mean in a description of insulation? - ANS Resistance
What kind of door would you install for someone with a disability?
A. Automatic with minimum of 3 seconds to close
B. Automatic with maximum of 5 seconds to open
C. Manual with maximum of 8.5 pounds to operate
D. Either A or C - ANS Either A or C
Triple-walled metal chimney installations are regulated by: - ANS ICC
ICC-IBC-IRC is the international code council. IBC is international building code
commercial. IRC is the international residential code.
If you are a general contractor, you should call a specialty contractor when: - ANS
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? - ANS Two
What is the minimum underlayment for asphalt shingles? - ANS 15 pounds
How long should you wait before sealing new tile work? - ANS 2 weeks
When do you install insulation? - ANS After the electrical and plumbing are
approved.
