CSLB B General Building Contractor License Exam Guide 2024: Study Materials & Practice Tests

Page 1 of 87


CSLB B CONTRACTORS LICENSE EXAM/ CSLB B LICENSE

STUDY GUIDE WITH DETAILED CORRECT

ANSWERSUPDATED

If unused mortar stiffens due to hydration of cement, what must

you do? .....ANSWER.....Discard the mortar

What minimum time must you wait before caulking or grouting

new tiles? .....ANSWER.....24-48 Hours

How long should you wait before installing tile on a shower pan?

.....ANSWER.....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: .....ANSWER.....Type-

B Soils

If 65 street lights are fed by a 2275 volt series circuit, what is

the voltage across each light? .....ANSWER.....35V

,Page 2 of 87




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.....Cal/OSHA or DOSH

When installing a door jamb, you need shims at:

.....ANSWER.....Both hinge and strike sides, three on each side.

Which of the following is used to adhere vinyl floors?

,Page 3 of 87




A. Epoxy cement

B. Asphalt mastic

C. Latex primer

D. White glue .....ANSWER.....Epoxy cement

When do you need bracing for a drywall wall?

.....ANSWER.....Diagonal bracing is needed every 25' for any

drywall wall.

How should you clear the roots from a construction site?

.....ANSWER.....Clear roots to 12" below grade.

Dividing watts by amps gives you: .....ANSWER.....Volts

The most frequent on-the-job roofing accidents are:

.....ANSWER.....Falls

Which of the following is NOT a type of wood block flooring?

, Page 4 of 87




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