LATEST CSLB B LICENSE GENERAL
CONTRACTOR STUDY GUIDE EXAM
WITH SOLUTIONS
At an excavation, an Underground Service Alert
(U.S.A) marking on the dirt that uses red paint or
chalk means: - answer-Electric power
How many diameters is the minimum lap (overlap)
between sections of rebar in reinforced masonry?
A. 7
B. 12
C. 24
D. 30 - answer-30 diameters
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
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?
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
CONTRACTOR STUDY GUIDE EXAM
WITH SOLUTIONS
At an excavation, an Underground Service Alert
(U.S.A) marking on the dirt that uses red paint or
chalk means: - answer-Electric power
How many diameters is the minimum lap (overlap)
between sections of rebar in reinforced masonry?
A. 7
B. 12
C. 24
D. 30 - answer-30 diameters
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
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?
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
