CSLB B LICENSE GENERAL CONTRACTOR
EXAM (ACTUAL 2025) QUESTIONS AND
VERIFIED ANSWERS
Which of the following materials is acceptable for interior gas
lines?
A. Copper
B. PVC
C. Iron or steel
D. ABS - <<<<Answers>>>Iron or steel is acceptable for
interior gas lines.
If a circular slab is a 45' in diameter, how much surface area
does it cover? - <<<<Answers>>>Over 1,500 feet
What material do you use to clean brushes and spills when
painting with alkyd (oil) paints? - <<<<Answers>>>Paint
thinner is to be used to clean up oil based paints and stains.
Fiberglass insulation for walls should be attached to:
A. The interior of the studs
B. The face of the studs
,C. The top and bottom of the studs
D. There is no need to attach - <<<<Answers>>>There is no
need to attach.
Basement concrete walls should have a minimum test PSI at
30 days of: - <<<<Answers>>>A basement concrete wall
should have a minimum of 3000 psi after 30 days.
The term Ufer is associated with which trade?
A. Roofing
B. Plumbing
C. Plastering
D. Electrical - <<<<Answers>>>Electrical
When working on rolling scaffolding, which of the following
statements is correct?
A. A locking system is required for each wheel.
B. The scaffold must be able to support four times the
designed weight limit.
C. Scaffold wheels must be locked when in position.
D. All of the above. - <<<<Answers>>>All of the above.
,What would you use to header a 4' opening?
A. 2 each 2" x 6" continuous
B. 4" x 6" continuous
C. 2" x 8" continuous
D. double 2" x 8" with plywood filler - <<<<Answers>>>2
Each 2" x 6" continuous
What is the minimum required compressive strength for a
concrete slab on grade? - <<<<Answers>>>For a concrete
slab on grade 2,000 psi is the minimum required compressive
strength.
Which of the following meets the minimum requirement for a
wood fire door? - <<<<Answers>>>The minimum
requirement for a wood fire door is 1 3/4" thick.
How should you treat a first-degree burn? -
<<<<Answers>>>Flush with water and wrap loosely.
When do you use a raked joint? - <<<<Answers>>>When the
plans call for a specific and even joint depth.
Which factor need stop be considered when determining the
size of a water supply line? - <<<<Answers>>>The amount
of fixtures served, the material used, and the water pressure.
, When foil-backed gypsum panels are installed as exterior
sheathing, the foil side should be facing? -
<<<<Answers>>>Foil-backed panels are not used for exterior
sheathing.
After drywall has been screwed into place, when do you
check the placement of the screws? -
<<<<Answers>>>Before taping.
Which is an important rule to follow when soldering?
A. Apply flux to the tubing, not the fitting
B. Heat the joint not the solder
C. Make sure the joint is clean and fits well
D. All of the above - <<<<Answers>>>All of the above.
Apply flux to the tubing not to the fitting, heat the joint not
the solder and make sure the joint is clean, abrasion free and
fits well.The wall between a garage and a bedroom must be at
least: - <<<<Answers>>>The wall between a garage and a
bedroom must be at least 5/8" drywall or 2 layers of 3/8"
drywall.
A self-closing door is best for a doorway between: -
<<<<Answers>>>Kitchen and garage.
EXAM (ACTUAL 2025) QUESTIONS AND
VERIFIED ANSWERS
Which of the following materials is acceptable for interior gas
lines?
A. Copper
B. PVC
C. Iron or steel
D. ABS - <<<<Answers>>>Iron or steel is acceptable for
interior gas lines.
If a circular slab is a 45' in diameter, how much surface area
does it cover? - <<<<Answers>>>Over 1,500 feet
What material do you use to clean brushes and spills when
painting with alkyd (oil) paints? - <<<<Answers>>>Paint
thinner is to be used to clean up oil based paints and stains.
Fiberglass insulation for walls should be attached to:
A. The interior of the studs
B. The face of the studs
,C. The top and bottom of the studs
D. There is no need to attach - <<<<Answers>>>There is no
need to attach.
Basement concrete walls should have a minimum test PSI at
30 days of: - <<<<Answers>>>A basement concrete wall
should have a minimum of 3000 psi after 30 days.
The term Ufer is associated with which trade?
A. Roofing
B. Plumbing
C. Plastering
D. Electrical - <<<<Answers>>>Electrical
When working on rolling scaffolding, which of the following
statements is correct?
A. A locking system is required for each wheel.
B. The scaffold must be able to support four times the
designed weight limit.
C. Scaffold wheels must be locked when in position.
D. All of the above. - <<<<Answers>>>All of the above.
,What would you use to header a 4' opening?
A. 2 each 2" x 6" continuous
B. 4" x 6" continuous
C. 2" x 8" continuous
D. double 2" x 8" with plywood filler - <<<<Answers>>>2
Each 2" x 6" continuous
What is the minimum required compressive strength for a
concrete slab on grade? - <<<<Answers>>>For a concrete
slab on grade 2,000 psi is the minimum required compressive
strength.
Which of the following meets the minimum requirement for a
wood fire door? - <<<<Answers>>>The minimum
requirement for a wood fire door is 1 3/4" thick.
How should you treat a first-degree burn? -
<<<<Answers>>>Flush with water and wrap loosely.
When do you use a raked joint? - <<<<Answers>>>When the
plans call for a specific and even joint depth.
Which factor need stop be considered when determining the
size of a water supply line? - <<<<Answers>>>The amount
of fixtures served, the material used, and the water pressure.
, When foil-backed gypsum panels are installed as exterior
sheathing, the foil side should be facing? -
<<<<Answers>>>Foil-backed panels are not used for exterior
sheathing.
After drywall has been screwed into place, when do you
check the placement of the screws? -
<<<<Answers>>>Before taping.
Which is an important rule to follow when soldering?
A. Apply flux to the tubing, not the fitting
B. Heat the joint not the solder
C. Make sure the joint is clean and fits well
D. All of the above - <<<<Answers>>>All of the above.
Apply flux to the tubing not to the fitting, heat the joint not
the solder and make sure the joint is clean, abrasion free and
fits well.The wall between a garage and a bedroom must be at
least: - <<<<Answers>>>The wall between a garage and a
bedroom must be at least 5/8" drywall or 2 layers of 3/8"
drywall.
A self-closing door is best for a doorway between: -
<<<<Answers>>>Kitchen and garage.
