CSLB B LICENSE GENERAL CONTRACTOR TEST QUESTIONS AND CORRECT ANSWERS | LATEST UPDATE 2025| CSLB B| CONTRACTOR

CSLB B LICENSE GENERAL CONTRACTOR TEST QUESTIONS AND
CORRECT ANSWERS | LATEST UPDATE 2025| CSLB B|
CONTRACTOR.


QUESTION: What minimum time must you wait before caulking or grouting new tiles? - ANSWER-24-48
Hours




QUESTION: How long should you wait before installing tile on a shower pan? - ANSWER-24 Hours




QUESTION: 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




QUESTION: If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each light? -
ANSWER-35V




In a series circuit, the total voltage is divided equally.

,QUESTION: For safety reasons, the maximum simple slope of an excavation, up to 20 ft deep, in Type-B
soil is: - ANSWER-1:1 (45°)




QUESTION: A Pittsburgh joint is used in: - ANSWER-HVAC ductwork




QUESTION: The drain for a pressure relief valve on a water heater should be extended to: - ANSWER-The
outside of the building




QUESTION: What is the minimum slope toward the drain of a shower pan? - ANSWER-1/4" per foot (2%)




QUESTION: What is the diameter of #3 rebar? - ANSWER-3/8"




QUESTION: If a vendor fails to provide an MSDS, you have the right to call: - ANSWER-Cal/OSHA or DOSH




QUESTION: When installing a door jamb, you need shims at: - ANSWER-Both hinge and strike sides,
three on each side.




QUESTION: Which of the following is used to adhere vinyl floors?




A. Epoxy cement

B. Asphalt mastic

,C. Latex primer

D. White glue - ANSWER-Epoxy cement




QUESTION: When do you need bracing for a drywall wall? - ANSWER-Diagonal bracing is needed every
25' for any drywall wall.




QUESTION: How should you clear the roots from a construction site? - ANSWER-Clear roots to 12" below
grade.




QUESTION: Dividing watts by amps gives you: - ANSWER-Volts




QUESTION: The most frequent on-the-job roofing accidents are: - ANSWER-Falls




QUESTION: 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. - ANSWER-Wood tile




QUESTION: 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




QUESTION: 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




QUESTION: Which pipe is NOT appropriate for industrial wastes?




A. Cast iron

B. Schedule 40 ABS DWV

C. Extra strength vitrified clay

D. Copper - ANSWER-Copper