California Cabinet, Millwork, and Finish Carpentry Contractor (C-6) License Exam Questions And Correct

California Cabinet, Millwork, and Finish
Carpentry Contractor (C-6) License Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales


SECTION A: PLANNING AND ESTIMATING (20%)
Question 1. Which document takes precedence if there is a conflict between
written specifications and the blueprints?
A) The blueprints always take precedence
B) The written specifications
C) The document with the most recent date
D) The contractor's interpretation
Answer: B
Rationale: In construction contracts, written specifications typically take
precedence over drawings when conflicts arise, as specifications provide
detailed technical requirements. However, the contract documents should
specify the order of precedence.


Question 2. What is the total board footage for a board that is 4/4 (four-quarters)
thickness, 4.25 inches wide, and 11 feet long, including 10% waste?
A) 3.90 board feet
B) 4.29 board feet
C) 4.75 board feet
D) 5.00 board feet
Answer: B
Rationale: Lumber thickness in quarters: 4/4 = 1 inch. Calculation: 1" × 11 ft ×
4.25" = 46.75 cubic inches. 46.75 ÷ 12 = 3.9 board feet. 3.9 × 1.1 (10% waste) =
4.29 board feet.


Question 3. In the 32mm system of cabinet construction, what is the distance
from the front edge of the panel to the center of the first row of holes?




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,A) 32 mm
B) 37 mm
C) 40 mm
D) 45 mm
Answer: B
Rationale: The 32mm system uses a standard spacing of 32mm between holes,
but the first row of holes is typically set back 37mm from the front edge to
accommodate hinge mounting plates.


Question 4. What does a contractor need before estimating or bidding a
contract?
A) Verbal agreement from the owner
B) Plans and specifications
C) Material supplier quotes only
D) Labor cost estimates only
Answer: B
Rationale: Contractors need complete plans and specifications (or must create
them) to properly estimate materials, labor, and overhead before bidding.
Verbal agreements are insufficient for accurate estimating.


Question 5. What is the standard height for a finished kitchen base cabinet
including the countertop?
A) 34 inches
B) 35 inches
C) 36 inches
D) 38 inches
Answer: C
Rationale: Standard base cabinet height is 34-1/2 inches. With a 1-1/2 inch
countertop, the finished height is 36 inches, which is the industry standard for
comfortable work surface height.


Question 6. Which California Building Code (CBC) chapter primarily addresses
accessibility requirements for kitchen cabinets?
A) Chapter 3 – Use and Occupancy Classification
B) Chapter 11B – Accessibility to Public Buildings
C) Chapter 5 – General Building Heights and Areas
D) Chapter 9 – Fire Protection Systems


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,Answer: B
Rationale: Chapter 11B of the CBC incorporates the California Disabled
Accessibility Guidebook (CalDAG) requirements, including reach ranges,
clearances, and accessible design for kitchen cabinets in public
accommodations.


Question 7. What are the three basic levels of finish used by the American
Woodwork Institute (AWI) to describe workmanship?
A) Basic, Standard, Premium
B) Economy, Custom, Premium
C) Grade A, Grade B, Grade C
D) Residential, Commercial, Industrial
Answer: B
Rationale: AWI defines three levels: Economy (minimum acceptable, for utility
areas), Custom (high-quality finish work), and Premium (highest levels of
craftsmanship).


Question 8. When calculating board footage of five pieces of 2" × 6" × 8' lumber,
what is the total board feet?
A) 30 board feet
B) 40 board feet
C) 50 board feet
D) 60 board feet
Answer: B
Rationale: Board feet formula: (thickness in inches × width in inches × length in
feet) ÷ 12. Single piece: (2 × 6 × 8) ÷ 12 = 96 ÷ 12 = 8 board feet. Five pieces: 8 ×
5 = 40 board feet.


Question 9. What is the purpose of "shop drawings" in cabinetmaking?
A) Marketing materials for clients
B) Detailed production documents including hardware specifications and
material descriptions
C) Employee work schedules
D) Building permit applications
Answer: B




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, Rationale: Shop drawings include all information required to produce a piece—
exact descriptions of hardware, suppliers, material specifications, dimensions,
joinery details, and finish requirements.


Question 10. In the material take-off process, what does "waste factor" account
for?
A) Only material that is defective from the supplier
B) Material lost to cutting, machining errors, and grain matching requirements
C) Labor inefficiency
D) Transportation damage only
Answer: B
Rationale: Waste factor typically ranges from 5-20% depending on material type
and complexity, accounting for saw kerf, machining errors, defects cut around,
and grain matching requirements.


SECTION B: CABINETRY AND MILLWORK FABRICATION (24%)
Question 11. Which joint provides the greatest resistance to pulling forces on a
face-frame cabinet door?
A) Dovetail joint
B) Mortise-and-tenon joint
C) Pocket-hole joint
D) Biscuit joint
Answer: B
Rationale: A mortise-and-tenon joint creates a large gluing surface and
mechanical interlock, making it the strongest against tensile loads for door
frames. It is the traditional choice for high-quality cabinet door construction.


Question 12. Which adhesive is most appropriate for bonding plastic laminate to
a particleboard substrate?
A) White PVA glue
B) Yellow wood glue
C) Contact cement
D) Epoxy resin
Answer: C
Rationale: Contact cement is applied to both surfaces, allowed to dry, and then
bonded under pressure. It provides an immediate, strong bond without
clamping and is the industry standard for plastic laminate applications.

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