CSLB C-6 Cabinet, Millwork and Finish Carpentry (Trade Exam) — All Questions
16 questions
Under the federal finish-carpentry guide specification, how are outside corners of trim and mouldings joined?
- a.Butted square
- b.Scarfed
- c.Coped
- d.Mitered✓
The guide specification calls for mitering at exterior angles and coping at interior angles and returns. Coping is for inside corners, square butts leave the profile exposed, and scarfs join lengths along a run.UFGS 06 20 00 (finish work)
What does the federal finish-carpentry guide specification say about face nails in finish work?
- a.Leave them flush and paint over them
- b.Avoid them on painted trim
- c.Clinch them on the back of the trim
- d.Set them for putty stopping✓
The guide specification calls for finish nails, blind nailing where practicable, and face nails set for putty stopping. Leaving nails flush skips the setting and puttying the specification calls for; clinching bends over nails driven through stock and is not a finish method; and the specification allows set face nails rather than avoiding them.UFGS 06 20 00 (finish work)
Why does the federal finish-carpentry guide specification call for primer on finish work before it is installed?
- a.So back and edges are coated before they are hidden✓
- b.Because primer is required by Cal/OSHA
- c.So the trim can be installed while wet
- d.Because unprimed trim cannot be nailed
The guide specification says to apply primer to finish work before installing, which coats surfaces that become inaccessible after installation and helps limit uneven moisture uptake. Cal/OSHA does not require primer; installing wet trim is not the purpose; and unprimed trim can be nailed.UFGS 06 20 00 (finish work)
What does the Wood Handbook recommend for large ornamental beams, newel posts and handrails?
- a.Cut them from single large green timbers
- b.Glue them from end-grain blocks
- c.Build them up from comparatively small pieces✓
- d.Use quartersawn solid stock
The Handbook says large members such as ornamental beams, newel posts, stair stringers and handrails should be built up from comparatively small pieces. Large green timbers shrink and check; the Handbook does not require quartersawn stock; and end-grain glue joints are weak.Wood Handbook (FPL-GTR-282), interior finish
Under the federal finish-carpentry guide specification, how are window aprons finished at their ends?
- a.Left long for the painter to trim
- b.With returns cut to the profile of the member✓
- c.Mitered to the casing above
- d.Square cut and caulked to the wall
The guide specification calls for aprons with returns cut accurately to the profile of the member, and stools rabbeted over the sills. Square cuts, miters to the casing, or leaving pieces long are not the specified finish.UFGS 06 20 00 (window stools and aprons)
What minimum headroom do California residential stairs require, as summarized in a city building department handout?
- a.6 ft 6 in
- b.6 ft 8 in✓
- c.7 ft 2 in
- d.6 ft 4 in
The handout lists 6 feet 8 inches of headroom for stairways, measured from the sloped line of the nosings. Six feet 6 inches applies to spiral stairs; 6 feet 4 inches is below any stated minimum; and 7 feet 2 inches exceeds the minimum.City of Gilroy handout (CRC R311.7 headroom)
What minimum clear width above the handrails does the CRC require for a residential stairway, as summarized in a California city's stair handout?
- a.44 inches
- b.32 inches
- c.30 inches
- d.36 inches✓
The handout states that stairways must have 36 inches minimum clear width above the handrails. Thirty and 32 inches are too narrow, and 44 inches exceeds the residential minimum.City of Gilroy handout (CRC R311.7 width)
On a residential stair, when is a nosing not required, according to a California city's CRC stair handout?
- a.When the treads are carpeted
- b.When the stair has fewer than four risers
- c.When the tread is at least 11 inches deep✓
- d.When the riser is under 7 inches
The handout says a nosing is not required when the tread depth is 11 inches or greater. Riser height, the number of risers and carpeting do not create the exception.City of Gilroy handout (CRC R311.7.5 nosings)
Along the open side of a residential stair, what size sphere must the guard openings not allow through, per a California city's CRC stair handout?
- a.A 2-inch sphere
- b.A 4-3/8-inch sphere✓
- c.A 6-inch sphere
- d.A 4-inch sphere
The handout says guards on the open side of stairs may not allow passage of a 4-3/8-inch sphere. Four inches is the general guard rule; 6 inches applies to the triangular opening formed by the riser, tread and bottom rail; and 2 inches is not a stated limit.City of Gilroy handout (CRC R312 guards)
A designer proposes open-riser stairs in a California office building covered by Chapter 11B. What does the rule say?
- a.Open risers are allowed on interior stairs
- b.Open risers are allowed if handrails are on both sides
- c.Open risers are allowed with a 4-inch sphere rule
- d.Open risers are not permitted✓
Chapter 11B says open risers are not permitted, with an exception allowing a small opening on exterior stairs only. The 4-inch sphere rule is a residential guard and open-riser rule; interior stairs are not excepted; and handrails do not change the open-riser rule.2025 CBC §11B-504.3 (open risers)
What minimum clearance does Chapter 11B require between a handrail's gripping surface and the adjacent wall?
- a.1 inch
- b.3 inches
- c.2-1/4 inches
- d.1-1/2 inches✓
Chapter 11B requires 1-1/2 inches minimum between the handrail gripping surface and adjacent surfaces. One inch is too tight; 2-1/4 inches is the maximum cross-section dimension for non-circular handrails; and 3 inches is the maximum recess depth, not a clearance.2025 CBC §11B-505.5 (handrail clearance)
Under the federal glazing standard, what makes a safety-glazing label "permanent"?
- a.It is a paper sticker on the glass
- b.It is printed on the window's packing carton
- c.It is listed on the installer's invoice
- d.It stays legible; removal destroys it✓
The federal standard defines a permanent label as one that remains legible and visible after installation and would be destroyed in attempts to remove it, such as sandblasted or acid-etched marks. A carton, a removable paper sticker, or an invoice entry does not meet that definition.16 CFR §1201.2 (permanent label)
After a wood window is glazed and installed, what does the federal guide specification require of operating sash?
- a.Removed and stored until the final clean
- b.Smooth and weathertight when locked✓
- c.Locked with screws until inspection
- d.Painted shut until occupancy
The guide specification calls for adjusting operating sash for smooth operation and for units to be weathertight when locked closed. Painting sash shut, screwing it closed or removing it is not the requirement.UFGS 08 52 00 (wood windows)
Under the federal wood-door guide specification, how much may a door warp at most?
- a.1/4 inch✓
- b.1/2 inch
- c.3/4 inch
- d.1/16 inch
Door warp must not exceed 1/4 inch when measured by the referenced door standard. One-sixteenth inch is the minimum side clearance; 1/2 and 3/4 inch exceed the warp limit.UFGS 08 14 00 (wood doors)
Hardware is being fastened to a hollow-core door. Which fastener does the federal hardware guide specification call for where required?
- a.Expansion shields
- b.Drywall screws
- c.Finish nails
- d.Toggle bolts✓
The guide specification provides toggle bolts where required for fastening to hollow-core construction, full-threaded wood screws for wood, and machine screws in expansion shields for concrete and masonry. Drywall screws and finish nails are not specified hardware fasteners.UFGS 08 71 00 (hardware installation)
What is the maximum opening force for an interior hinged door under Chapter 11B?
- a.15 pounds
- b.8.5 pounds
- c.5 pounds✓
- d.10 pounds
Chapter 11B limits interior hinged, sliding and folding doors, and exterior hinged doors, to 5 pounds of opening force. Fifteen pounds is the cap for required fire doors; 8.5 and 10 pounds are not stated limits.2025 CBC §11B-404.2.9 (door opening force)