CSLB B License General Contractor Exam
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
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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?
- Epoxy cement
- Asphalt mastic
- Latex primer
- 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?
- Parquet 2 / 4
- Wood Mosaic
- Wood Tile
- All of the above.
(Ans- Wood tile
Lightweight concrete is best used for:
- Curb and Gutter
- Second floor decking
- First floor slab on grade
- Footings
(Ans- Second floor decking
The tool used to carry grout needed to patch a small hole is a:
- Hawk
- Poling board
- Spot board
- Mason's scutch
(Ans- Spot Board
Which pipe is NOT appropriate for industrial wastes?
- Cast iron
- Schedule 40 ABS DWV
- Extra strength vitrified clay
- Copper
(Ans- Copper
Where do you need a fire wall?
- Between a living room and a bedroom
- Between a bedroom and a bathroom
- Between a kitchen and a bath
- A separation wall between a dwelling and an attachment 3 / 4
(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?
- Gravel
- Sand
- Silt
- Clay
(Ans- Clay
Stiles and rails are used on which of the following?
- Furred walls
- Roofs
- Windows
- 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?
- Oiled
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