CSLB B LICENSE GENERAL CONTRACTOR
EXAM | QUESTIONS AND VERIFIED ANSWERS
| 100% CORRECT | RATED A+ | 2025/2026
GUIDE
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 - Correct Answer - There is no need to
attach.
The term Ufer is associated with which trade?
A. Roofing
B. Plumbing
C. Plastering
D. Electrical - Correct Answer - 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. - Correct Answer - 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 - Correct Answer - 2 Each 2" x 6"
continuous
Where is a 4-prong outlet plug used?
A. Within 6 feet of a sink
B. Outside of a building
C. At the service to a house trailer or RV vehicle
D. By a pool - Correct Answer - A 4-prong plug would be used at service
to house trailer or RV vehicle.
Which type of construction requires a specialty contractor's license?
A. Electrical
B. Plumbing
C. HVAC
D. All of the above. - Correct Answer - All of the above.
The safety regulations concerning scaffolds are published in the:
- Correct Answer - Safety regulations are published in the Cal/OSHA.
Approximately, how many 4" x 4" ceramic tiles would you need to tile a
30" x 60" shower pan and three walls 5' high? Use 1/4" grout lines,
assume no curb, and allow 15% for waste.
A. 439
B. 574
,C. 720
D. 800 - Correct Answer - 574
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. - Correct 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 - Correct Answer - Second floor decking
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 - Correct Answer - Spot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper - Correct Answer - Copper
Where do you need a fire wall?
, A. Between a living room and a bedroom
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
D. A separation wall between a dwelling and an attachment
- Correct Answer - A separation wall between a dwelling and an
attachment.
What is the minimum clearance between rough ground and untreated
subfloor joists?
- Correct Answer - 18 inches
Who may remove asbestos?
- Correct Answer - Contractor with Asbestos Certification on license.
Which of the following is NOT likely to be found in significant proportions
in granular soil?
A. Gravel
B. Sand
C. Silt
D. Clay - Correct Answer - Clay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs - Correct Answer - Windows.
A stile is the vertical edges of the window and the rails are the bottom
and top.
EXAM | QUESTIONS AND VERIFIED ANSWERS
| 100% CORRECT | RATED A+ | 2025/2026
GUIDE
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 - Correct Answer - There is no need to
attach.
The term Ufer is associated with which trade?
A. Roofing
B. Plumbing
C. Plastering
D. Electrical - Correct Answer - 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. - Correct Answer - 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 - Correct Answer - 2 Each 2" x 6"
continuous
Where is a 4-prong outlet plug used?
A. Within 6 feet of a sink
B. Outside of a building
C. At the service to a house trailer or RV vehicle
D. By a pool - Correct Answer - A 4-prong plug would be used at service
to house trailer or RV vehicle.
Which type of construction requires a specialty contractor's license?
A. Electrical
B. Plumbing
C. HVAC
D. All of the above. - Correct Answer - All of the above.
The safety regulations concerning scaffolds are published in the:
- Correct Answer - Safety regulations are published in the Cal/OSHA.
Approximately, how many 4" x 4" ceramic tiles would you need to tile a
30" x 60" shower pan and three walls 5' high? Use 1/4" grout lines,
assume no curb, and allow 15% for waste.
A. 439
B. 574
,C. 720
D. 800 - Correct Answer - 574
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. - Correct 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 - Correct Answer - Second floor decking
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 - Correct Answer - Spot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper - Correct Answer - Copper
Where do you need a fire wall?
, A. Between a living room and a bedroom
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
D. A separation wall between a dwelling and an attachment
- Correct Answer - A separation wall between a dwelling and an
attachment.
What is the minimum clearance between rough ground and untreated
subfloor joists?
- Correct Answer - 18 inches
Who may remove asbestos?
- Correct Answer - Contractor with Asbestos Certification on license.
Which of the following is NOT likely to be found in significant proportions
in granular soil?
A. Gravel
B. Sand
C. Silt
D. Clay - Correct Answer - Clay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs - Correct Answer - Windows.
A stile is the vertical edges of the window and the rails are the bottom
and top.
