If unused mortar stiffens due to hydration of cement, what must you do? - correct
Answers-Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? - correct
Answers-24-48 Hours
How long should you wait before installing tile on a shower pan? - correct Answers-24...
CSLB B LICENSE GENERAL
CONTRACTOR EXAM WITH 100%
CORRECT ANSWERS 2022
If unused mortar stiffens due to hydration of cement, what must you do? - correct
Answers-Discard the mortar
What minimum time must you wait before caulking or grouting new tiles? - correct
Answers-24-48 Hours
How long should you wait before installing tile on a shower pan? - correct Answers-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: -
correct Answers-Type-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each
light? - correct Answers-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: - correct Answers-1:1 (45°)
A Pittsburgh joint is used in: - correct Answers-HVAC ductwork
The drain for a pressure relief valve on a water heater should be extended to: - correct
Answers-The outside of the building
What is the minimum slope toward the drain of a shower pan? - correct Answers-1/4"
per foot (2%)
What is the diameter of #3 rebar? - correct Answers-3/8"
If a vendor fails to provide an MSDS, you have the right to call: - correct Answers-
Cal/OSHA or DOSH
When installing a door jamb, you need shims at: - correct Answers-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 - correct Answers-Epoxy cement
When do you need bracing for a drywall wall? - correct Answers-Diagonal bracing is
needed every 25' for any drywall wall.
How should you clear the roots from a construction site? - correct Answers-Clear roots
to 12" below grade.
Dividing watts by amps gives you: - correct Answers-Volts
The most frequent on-the-job roofing accidents are: - correct Answers-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. - correct Answers-Wood tile
Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings - correct Answers-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 - correct Answers-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 - correct Answers-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 - correct Answers-A
separation wall between a dwelling and an attachment.
What is the minimum clearance between rough ground and untreated subfloor joists? -
correct Answers-18 inches
Who may remove asbestos? - correct Answers-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 - correct Answers-Clay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs - correct Answers-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? - correct Answers-Too much water.
Metal concrete forms should be?
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use - correct Answers-Oiled
What does the R mean in a description of insulation? - correct Answers-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 - correct Answers-Either A or C
, Triple-walled metal chimney installations are regulated by: - correct Answers-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: - correct
Answers-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? - correct Answers-Two
What is the minimum underlayment for asphalt shingles? - correct Answers-15 pounds
How long should you wait before sealing new tile work? - correct Answers-2 weeks
When do you install insulation? - correct Answers-After the electrical and plumbing are
approved.
When do you NOT need an exhaust fan in a bathroom? - correct Answers-When there
is a window in the bathroom.
What is a bush-hammer used for? - correct Answers-Roughen surface of hardened
concrete.
When you say a wall is perfect it is: - correct Answers-Both plumb and straight.
The purpose of a batter board in concrete work is: - correct Answers-Support layout
strings when location foundations.
What is the difference between a hip jack rafter and a common rafter? - correct
Answers-A hip jack runs from the top plate to a hip rafter, but a common rafter runs to
the ridge board.
When should you float a concrete surface? - correct Answers-As soon as the water
sheen evaporates
When installing drywall screws you should:
A. Countersink
B. Drive just below the face of the board
C. Leave slightly above the surface
D. Use the highest torque setting - correct Answers-Drive just below the face of the
board without breaking the paper.
Before placing tile with mastic, you should: - correct Answers-Seal the surface.
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