CSLB C-6 Cabinet, Millwork and Finish Carpentry (Trade Exam) — All Questions

Under federal lead rules, which home is "target housing" for a cabinet remodel?

• a.A house built in 1982 with children living there
• b.A 1990 house with original painted cabinets
• c.A house built in 1974 with children living there✓
• d.A new house built in 2020

Target housing is housing built before 1978, with limited exceptions, so a 1974 house qualifies. Houses built in 1982 or 2020 are not target housing, and painted cabinets do not make a 1990 house target housing.40 CFR §745.103 (target housing)

A pre-1978 preschool classroom is visited by the same children several days a week. What does the RRP rule call such a building?

• a.An abatement site
• b.A public accommodation
• c.A child-occupied facility✓
• d.Target housing

The RRP rule defines a child-occupied facility as a pre-1978 building or portion visited regularly by the same child under 6 on the schedule the rule sets. Public accommodation is an accessibility term; target housing refers to housing; and abatement is a different activity from renovation.40 CFR §745.83 (child-occupied facility)

A contractor replaces two painted exterior window casings totaling 14 square feet on a pre-1978 house and uses no prohibited practices. Why might the minor repair exception still not apply?

• a.Window replacement is excluded✓
• b.Exterior work has no minor-repair exception
• c.Casings are not painted components
• d.The limit outside is 6 square feet

The exception covers up to 20 square feet of exterior painted surface, but not work that involves window replacement or demolition of painted surfaces. Exterior work can be minor repair; 6 square feet is the interior per-room limit; and painted casings are painted components.40 CFR §745.83 (minor repair and maintenance)

Which RRP practice requires a shroud and a HEPA vacuum attachment on the machine?

• a.Hand scraping painted trim
• b.Power planing painted trim✓
• c.Wet misting before scraping
• d.Using a heat gun below 1,100 °F

High-speed machines such as power planers, sanders and grinders are prohibited on painted surfaces unless shrouded and fitted with a HEPA vacuum attachment. Hand scraping and wet misting are not high-speed machines, and a heat gun below 1,100 degrees Fahrenheit is permitted without a shroud.40 CFR §745.85 (prohibited practices)

For exterior RRP work on a pre-1978 house, how far beyond the work must ground sheeting extend at a minimum?

• a.10 feet or more✓
• b.6 feet, or farther if needed
• c.3 feet
• d.20 feet

Exterior ground sheeting must extend 10 feet beyond the perimeter of the surfaces being renovated, or farther as needed to collect debris. Six feet is the interior floor figure; 3 feet is too short; and 20 feet is the exterior minor-repair area limit, not a containment distance.40 CFR §745.85 (exterior containment)

After interior RRP work, who must perform the visual inspection for remaining dust, debris or residue?

• a.The homeowner
• b.A certified renovator✓
• c.A laborer on the crew
• d.The local building inspector

The rule requires a certified renovator to perform the visual inspection and to have the area re-cleaned until it passes. The homeowner, an untrained laborer and the building inspector are not assigned that task.40 CFR §745.85 (cleaning verification)

How long must a renovation firm keep records showing it followed the RRP rule?

• a.5 years after completing the renovation
• b.3 years after completing the renovation✓
• c.Until the home is sold
• d.1 year after completing the renovation

Firms must keep records demonstrating compliance for 3 years following completion of the renovation. One year is too short; 5 years is the renovator refresher interval; and the sale of the home is not the measure.40 CFR §745.86 (recordkeeping)

What is Cal/OSHA's action level for airborne lead in construction since January 1, 2025?

• a.30 micrograms per cubic meter
• b.50 micrograms per cubic meter
• c.10 micrograms per cubic meter
• d.2 micrograms per cubic meter✓

Section 1532.1 sets the action level at 2 micrograms per cubic meter and the permissible exposure limit at 10, under an amendment operative January 1, 2025. Thirty and 50 micrograms are not the current figures.Cal. Code Regs. tit. 8 §1532.1 (lead)

Which activity is Class IV asbestos work?

• a.Cleanup of Class I–III debris✓
• b.Removing asbestos floor tile
• c.Removing thermal system insulation
• d.Repairing a pipe with asbestos insulation

Class IV covers maintenance and custodial work that contacts but does not disturb ACM, and cleanup of dust, waste and debris from Class I, II and III work. Removing thermal insulation is Class I, removing floor tile is Class II, and repair that disturbs ACM is Class III.Cal. Code Regs. tit. 8 §1529 (asbestos)

What must a contractor do to be certified by the CSLB for asbestos abatement?

• a.Obtain a letter from the building owner
• b.Hold a C classification for five years
• c.EPA course, CSLB exam, DOSH registration✓
• d.Pass the CSLB open-book asbestos exam

The CSLB requires an EPA-accredited abatement course, an application and comprehensive CSLB examination, and registration with Cal/OSHA's Asbestos Contractor Registration Unit. The open-book exam certifies no one; years in a classification or an owner's letter are not the requirement.CSLB, Before Applying for the Examination (asbestos)

Before a crew arrives to remove old cabinets, what does Cal/OSHA require the employer to do at the site?

• a.Post a notice in the local newspaper
• b.Notify the fire department
• c.Obtain the owner's signature on the plans
• d.Survey it for hazards✓

Section 1511 requires the employer, before employees arrive, to make a thorough survey of the site to determine predictable hazards and the safeguards needed. Fire department notice, an owner's signature or a newspaper notice are not what the rule requires.Cal. Code Regs. tit. 8 §1511 (site survey)

The federal casework guide specification leaves one sequencing choice for floor cabinets to each project. Which choice?

• a.Before or after flooring✓
• b.Before or after HVAC start-up
• c.Before or after framing
• d.Before or after drywall

The guide specification says to install floor cabinets before or after finished flooring, leaving the choice to the project. It does not offer installation before drywall, HVAC start-up or framing; it requires the building enclosed, wet work complete and HVAC operating first.UFGS 06 41 16.00 10 (sequencing)

Under the federal casework guide specification, what temperature range must the HVAC system maintain before cabinets are delivered?

• a.40 to 60 degrees Fahrenheit
• b.32 degrees Fahrenheit or warmer
• c.60 to 90 degrees Fahrenheit✓
• d.70 to 75 degrees Fahrenheit

The guide specification requires HVAC to maintain 60 to 90 degrees Fahrenheit, with a specified humidity range, before cabinets are delivered or installed. Forty to 60 degrees is below the range; 70 to 75 degrees is narrower than required; and 32 degrees is far below the 60-degree minimum.UFGS 06 41 16.00 10 (environmental limits)

A wall cabinet is fastened with screws spaced 24 inches apart through its back. What spacing does the federal casework guide specification allow at most?

• a.16 inches on center✓
• b.32 inches on center
• c.24 inches on center
• d.48 inches on center

The guide specification fastens wall cabinets through the back near top and bottom and at ends not more than 16 inches on center. Twenty-four, 32 and 48 inches exceed that spacing.UFGS 06 41 16.00 10 (installation)

What minimum screw penetration into wood framing or blocking does the federal casework guide specification call for when hanging wall cabinets?

• a.1-1/2 inches✓
• b.2-1/2 inches
• c.3/4 inch
• d.1 inch

The guide specification calls for No. 10 wafer-head screws sized for at least 1-1/2 inches of penetration into wood framing, blocking or hanging strips. Three-quarter and 1 inch fall short, and 2-1/2 inches is more than the stated minimum.UFGS 06 41 16.00 10 (installation)

Under the federal finish-carpentry guide specification, how are cabinets secured to walls?

• a.With finish nails into the drywall
• b.With construction adhesive
• c.With concealed toggle bolts✓
• d.With exposed lag bolts through the face frame

The finish-carpentry guide specification secures cabinets to walls with concealed toggle bolts and tops to cabinets with concealed screws. Exposed lags, adhesive alone and finish nails into drywall do not meet it.UFGS 06 20 00 (cabinets)

How does the federal finish-carpentry guide specification say countertops should be provided?

• a.In the longest practical lengths✓
• b.In stock lengths, if joints are caulked
• c.In short sections for easier handling
• d.In lengths joined at each cabinet

The guide specification calls for counter sections in the longest lengths practicable with a minimum number of joints, joined with concealed pull-up bolts and water-resistant glue where joints are needed. Short sections and joints at every cabinet add joints; caulk does not replace the joint method.UFGS 06 20 00 (countertops)

What seals the joint between a solid-surface backsplash and the wall under the federal solid surfacing guide specification?

• a.Silicone✓
• b.Wood filler
• c.Seam adhesive
• d.Grout

The guide specification uses silicone sealant at expansion joints and at joints between solid surfacing and other surfaces such as walls. Seam adhesive is for joints between solid surfacing components; grout and wood filler are not specified.UFGS 06 61 16 (solid surfacing)

What caulk does the federal casework guide specification call for at joints between laminated components and adjacent surfaces?

• a.Oil-based glazing putty
• b.Paintable acrylic latex
• c.Polyurethane construction adhesive
• d.Clear, 100 percent silicone✓

The guide specification requires clear, 100 percent silicone caulk at joints between laminated components and between them and adjacent surfaces. Acrylic latex, glazing putty and construction adhesive are not the specified caulk.UFGS 06 41 16.00 10 (caulk)

An accessible lavatory in a California office restroom is set with its rim at 35 inches. Does it meet Chapter 11B?

• a.No; the maximum is 34 inches✓
• b.No; the minimum is 36 inches
• c.Yes; there is no maximum for lavatories
• d.Yes; the maximum is 36 inches

Chapter 11B requires the front of the higher of the rim or counter surface at 34 inches maximum. Thirty-five inches exceeds it; 36 inches is not the maximum; there is a maximum; and there is no 36-inch minimum.2025 CBC §11B-606.3 (lavatory height)

In a California dwelling unit kitchen required to comply with Chapter 11B, how wide must the accessible kitchen work surface section be at a minimum?

• a.24 inches
• b.30 inches✓
• c.48 inches
• d.36 inches

Chapter 11B requires at least one 30-inch-wide minimum section of counter as the kitchen work surface. Twenty-four inches is too narrow, and 36 and 48 inches exceed the minimum.2025 CBC §11B-804.3 (kitchen work surface)

In a kitchen covered by Chapter 11B, what share of shelf space in storage facilities must comply with the accessible storage section?

• a.At least 75 percent
• b.At least 25 percent
• c.At least 50 percent✓
• d.At least 10 percent

Chapter 11B requires at least 50 percent of shelf space in kitchen storage facilities to comply with the storage section. Twenty-five and 10 percent understate it, and 75 percent overstates it.2025 CBC §11B-804.5 (kitchen storage)

Under the federal painting guide specification, when are nail holes and cracks in wood trim filled with putty?

• a.After the final coat of paint
• b.They are left open for inspection
• c.After the prime coat has dried✓
• d.Before the primer is applied

The guide specification says to set and putty-stop nailheads and putty cracks after the prime coat has dried. Puttying before priming or after the final coat is out of sequence, and leaving holes is not the rule.UFGS 09 90 00 (wood surface preparation)

A homeowner notices a lighter rectangle on new cherry paneling where a picture hung. What does the Wood Handbook advise?

• a.The mark is permanent
• b.Keep it exposed to light✓
• c.Sand and restain the whole panel immediately
• d.Apply bleach to the darker areas

The Handbook explains that color change indoors is natural aging from visible light and that shadowing usually evens out when the wood is left exposed, though cherry takes exceptionally long. Sanding, restaining or bleaching are not the advice, and the mark is not permanent.Wood Handbook (FPL-GTR-282), interior finishing

In the South Coast air district, what VOC limit does Rule 1113 set for interior stains?

• a.550 grams per liter
• b.275 grams per liter
• c.100 grams per liter
• d.250 grams per liter✓

Rule 1113's Table of Standards sets 250 grams per liter for interior stains. One hundred grams is the general stains limit, 275 grams the wood coatings limit, and 550 grams the pigmented shellac limit.South Coast AQMD Rule 1113 (architectural coatings)