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Virginia (VA) FLR Flooring & Floor Covering
Exam | Latest Verified Questions and Detailed
Answers
OVERVIEW DESCRIPTION:
The Virginia FLR (Flooring) Exam is a specialized licensing test required by the Virginia Department of Professional and Occupational Regulation (DPOR) for contractors who wish to install floor covering materials legally in the state. The exam covers a broad spectrum of technical knowledge, including the properties and installation methods for ceramic tile, stone, resilient flooring (vinyl, linoleum, rubber), wood flooring, and carpet. Candidates must demonstrate proficiency in substrate preparation, moisture control, material estimating, and safety protocols governed by OSHA. QUESTION 1 Which characteristic best differentiates porcelain tile from non-porcelain ceramic tile? A. Porcelain tile is always glazed B. Porcelain tile is made from finer, denser clay and fired at higher temperatures, resulting in lower water absorption C. Non-porcelain tile is more expensive and durable D. Non-porcelain tile cannot be used on floors CORRECT ANSWER: B EXPERT RATIONALE: Porcelain tile is differentiated by its denser body and lower water absorption rate (typically less than 0.5%), which results from using finer clay and firing at higher temperatures compared to standard ceramic tile. QUESTION 2 What is the primary purpose of back-buttering a tile during installation? A. To reduce the amount of thin-set mortar needed B. To create a decorative pattern on the tile back C. To ensure adequate adhesive coverage and eliminate hollow spots D. To make the tile easier to cut
CORRECT ANSWER: C
EXPERT RATIONALE: Back-buttering involves applying a thin layer of mortar to the back of the tile to ensure 100% coverage and a strong bond with the substrate, which is especially critical for large-format tiles or installations in wet areas. QUESTION 3 When preparing a concrete substrate for ceramic tile installation, what is the maximum allowable surface variation according to industry standards? A. 1/8 inch in 10 feet B. 1/4 inch in 10 feet C. 1/2 inch in 10 feet D. 3/4 inch in 10 feet CORRECT ANSWER: B EXPERT RATIONALE: Industry standards, including TCNA guidelines, require concrete subfloors to be flat within 1/4 inch in 10 feet to prevent lippage and ensure proper thin- set coverage. QUESTION 4 Which tool is specifically designed for making straight, precision cuts in ceramic tile while minimizing chipping? A. Circular saw with a carbide blade B. Jigsaw with a metal blade C. Wet saw with a diamond blade D. Angle grinder with a grinding wheel CORRECT ANSWER: C EXPERT RATIONALE: A wet saw with a diamond blade uses water to cool the blade and reduce dust while providing clean, precise cuts through ceramic and porcelain tile. QUESTION 5 What is the function of tile spacers during installation?
time to achieve sufficient strength before grouting can begin, though this may vary based on manufacturer specifications and job-site conditions. QUESTION 8 Which natural stone is most susceptible to etching from acidic substances and requires frequent sealing? A. Granite B. Slate C. Marble D. Sandstone CORRECT ANSWER: C EXPERT RATIONALE: Marble is a calcium-based stone that is reactive to acids and highly porous, making it prone to etching and staining without proper sealing and maintenance. QUESTION 9 According to TCNA guidelines, what is the maximum allowable grout joint width for floor tiles larger than 15 inches installed in a wet area? A. 1/8 inch B. 1/4 inch C. 3/8 inch D. 1/2 inch CORRECT ANSWER: B EXPERT RATIONALE: TCNA guidelines permit grout joints up to 1/4 inch for large- format tiles in wet areas to accommodate movement while maintaining water resistance. QUESTION 10 What is the minimum required slope for a shower pan mortar bed toward the drain? A. 1/8 inch per foot (1%)
B. 1/4 inch per foot (2%) C. 3/8 inch per foot (3%) D. 1/2 inch per foot (4%) CORRECT ANSWER: B EXPERT RATIONALE: A minimum slope of 1/4 inch per foot (2%) ensures proper drainage and prevents standing water in shower installations. QUESTION 11 Which membrane is required when installing ceramic tile over a concrete slab with a moisture vapor emission rate greater than 5 lbs/1000 sq ft/24 hours? A. Polyethylene sheeting only B. Vapor-retarder membrane meeting ASTM C 1159 C. Latex primer coating D. Cementitious backer board without membrane CORRECT ANSWER: B EXPERT RATIONALE: When slab moisture exceeds 5 lbs, a vapor-retarder membrane meeting ASTM C 1159 is necessary to prevent moisture transmission that could damage the tile assembly. QUESTION 12 What is the primary purpose of a crack isolation membrane under tile? A. To provide thermal insulation B. To absorb substrate movement and prevent tile cracking C. To improve sound absorption D. To reduce the amount of mortar needed CORRECT ANSWER: B EXPERT RATIONALE: Crack isolation membranes decouple the tile from substrate movement, absorbing stresses that would otherwise transfer through to the tile and cause cracking.
CORRECT ANSWER: C
EXPERT RATIONALE: Larger tiles require a larger notch trowel (minimum 1/2 x 1/ inch) to apply sufficient mortar for full coverage and proper support. QUESTION 16 What is lippage in tile installation? A. Tiles that are loose and moving B. Difference in elevation between adjacent tiles C. Grout that has shrunk below tile surface D. Tiles cut at incorrect angles CORRECT ANSWER: B EXPERT RATIONALE: Lippage refers to the condition where one edge of a tile is higher than an adjacent tile, often caused by substrate irregularities or improper installation. QUESTION 17 Which material is known for being the most popular hardwood species for flooring due to its durability and grain pattern? A. Pine B. Oak C. Cherry D. Maple CORRECT ANSWER: B EXPERT RATIONALE: Oak is the most popular hardwood flooring species because of its excellent durability, hardness, and attractive, prominent grain pattern. QUESTION 18 What is the recommended acclimation period for most hardwood flooring before installation? A. 1-2 hours B. 12 hours
C. 24-48 hours D. No acclimation needed CORRECT ANSWER: C EXPERT RATIONALE: Hardwood flooring should acclimate in the installation area for at least 24-48 hours to reach equilibrium moisture content with the room conditions. QUESTION 19 Why is an expansion gap required around the perimeter of a hardwood floor installation? A. To allow for cleaning underneath B. To accommodate natural wood expansion and contraction C. To provide space for baseboard installation D. To improve air circulation CORRECT ANSWER: B EXPERT RATIONALE: Wood naturally expands and contracts with humidity changes; the perimeter gap prevents buckling or warping by allowing this movement. QUESTION 20 Which installation method is most appropriate for engineered wood flooring in a below-grade basement? A. Nail-down only B. Glue-down only C. Floating floor installation D. Staple-down only CORRECT ANSWER: C EXPERT RATIONALE: Floating floor installation is recommended for below-grade applications because it accommodates potential moisture and does not require fastening through a moisture barrier.
CORRECT ANSWER: A
EXPERT RATIONALE: Sanding should progress from coarse to fine grits to efficiently remove old finish and smooth the surface without leaving sanding scratches. QUESTION 24 Which transition strip is used to connect a hardwood floor to a tile floor of different heights? A. T-molding B. Reducer strip C. Threshold D. End cap CORRECT ANSWER: B EXPERT RATIONALE: A reducer strip provides a gradual slope between flooring materials of different heights, creating a safe and aesthetically pleasing transition. QUESTION 25 What is parquetry in wood flooring? A. Flooring made from reclaimed barn wood B. Short lengths of wood arranged in geometric designs C. Random-width planks installed in a rustic pattern D. Engineered wood with a thick wear layer CORRECT ANSWER: B EXPERT RATIONALE: Parquetry uses short pieces of wood arranged in geometric patterns such as herringbone, chevron, or basketweave to create decorative floors. QUESTION 26 What is the primary advantage of vinyl composition tile (VCT) in commercial settings? A. Superior scratch resistance B. Low initial cost and good durability
C. Natural composition without chemicals D. Ease of installation without adhesive CORRECT ANSWER: B EXPERT RATIONALE: VCT is widely used in commercial applications because it offers an excellent balance of affordability and durability for high-traffic areas. QUESTION 27 Which adhesive type is most commonly used for standard vinyl tile installations? A. Epoxy adhesive B. Pressure-sensitive adhesive C. Contact cement D. Construction adhesive CORRECT ANSWER: B EXPERT RATIONALE: Pressure-sensitive adhesives allow tiles to be positioned during installation and create a secure bond once pressure is applied, making them ideal for vinyl tile. QUESTION 28 What is the flatness tolerance required for concrete slabs receiving luxury vinyl tile (LVT) installation? A. 1/16 inch in 10 feet B. 1/8 inch in 10 feet C. 3/16 inch in 10 feet D. 1/4 inch in 10 feet CORRECT ANSWER: B EXPERT RATIONALE: LVT requires a maximum deviation of 1/8 inch in 10 feet to prevent telegraphing of subfloor imperfections through the thin material.
CORRECT ANSWER: B
EXPERT RATIONALE: Sheet vinyl seams are created by overlapping, double-cutting both layers simultaneously, then using heat welding or chemical seam sealer for a watertight bond. QUESTION 32 For a floating engineered floor, what is the required expansion gap at walls? A. 1/8 inch B. 1/4 inch C. 1/2 inch D. 3/4 inch CORRECT ANSWER: C EXPERT RATIONALE: A 1/2-inch expansion gap is required for floating installations to allow for seasonal movement without buckling. QUESTION 33 What does the term "resilient flooring" refer to? A. Flooring that is soft and cushiony B. Material's ability to spring back when compressed C. Flooring that resists all damage D. Material with high gloss finish CORRECT ANSWER: B EXPERT RATIONALE: Resilient flooring describes materials like vinyl, linoleum, and rubber that have the ability to temporarily deform under load and spring back to original shape. QUESTION 34 Which test method is used to determine in-situ relative humidity of concrete slabs? A. ASTM C 1157 B. ASTM F 2170
C. ASTM E 212
D. ASTM D 4263
CORRECT ANSWER: B
EXPERT RATIONALE: ASTM F 2170 is the standard test method for determining relative humidity in concrete slabs using in-situ probes. QUESTION 35 What is the primary function of tack strips in stretch-in carpet installation? A. To provide a decorative border B. To secure carpet edges and create tension C. To act as a moisture barrier D. To hold the padding in place CORRECT ANSWER: B EXPERT RATIONALE: Tack strips have angled pins that grip the carpet backing, allowing installers to stretch the carpet taut across the room and secure it at the edges. QUESTION 36 Which carpet fiber offers the best stain resistance for commercial applications? A. Wool B. Nylon C. Polyester D. Olefin (polypropylene) CORRECT ANSWER: D EXPERT RATIONALE: Olefin is highly stain-resistant, moisture-repellent, and colorfast, making it ideal for commercial carpet where spills are common. QUESTION 37 According to VUSBC, what is the maximum allowable height for a floor transition ramp
QUESTION 40
How is the total square footage of a rectangular room calculated for flooring estimates? A. Add length and width B. Multiply length by width C. Divide length by width D. Add length plus width and multiply by 2 CORRECT ANSWER: B EXPERT RATIONALE: Area is calculated by multiplying length times width to determine the total square footage requiring flooring material. QUESTION 41 When estimating carpet for a room, why must you consider roll width? A. To determine carpet color B. To minimize seams and waste C. To calculate padding thickness D. To select proper fiber type CORRECT ANSWER: B EXPERT RATIONALE: Carpet comes in standard roll widths; planning layout based on these widths minimizes the number of seams and reduces material waste. QUESTION 42 What is the primary OSHA requirement for operating a wet saw on a residential jobsite? A. Wearing a hard hat at all times B. GFCI protection for the electrical circuit C. Operating only during daylight D. Having a fire extinguisher nearby
CORRECT ANSWER: B
EXPERT RATIONALE: OSHA requires ground-fault circuit interrupter (GFCI) protection for all power tools used in wet or damp locations to prevent electric shock. QUESTION 43 Which respiratory protection is required when cutting silica-containing ceramic tile without wet methods? A. Dust mask only B. Half-face respirator with P100 filter C. Cloth bandana D. No protection needed outdoors CORRECT ANSWER: B EXPERT RATIONALE: Silica dust is a respirable hazard requiring at least a half-face respirator with P100 filters when engineering controls like wet cutting are not used. QUESTION 44 Under Virginia law, what is the maximum down payment a residential contractor may request before work begins? A. 10% of contract price B. 25% of contract price C. 33% of contract price D. 50% of contract price CORRECT ANSWER: B EXPERT RATIONALE: Virginia statutes limit down payments for residential specialty contracts to a maximum of 25% of the total contract price. QUESTION 45 Which document must be provided to homeowners to protect existing finishes during remodeling? A. Warranty registration
QUESTION 48
Which Virginia Code title establishes licensing requirements for contractors? A. Title 46. B. Title 54. C. Title 57. D. Title 62. CORRECT ANSWER: B EXPERT RATIONALE: Title 54.1 of the Code of Virginia contains statutes governing professional and occupational regulation, including contractor licensing. QUESTION 49 What is the minimum years of experience required for a Qualified Individual listed on a Virginia contractor's license? A. 1 year B. 2 years C. 3 years D. 4 years CORRECT ANSWER: C EXPERT RATIONALE: The Qualified Individual must possess a minimum of three years of verifiable experience in the applicable trade. QUESTION 50 What is the first step in preparing an existing concrete slab for resilient flooring installation? A. Apply primer immediately B. Test for moisture content C. Install self-leveling compound D. Grind the entire surface
CORRECT ANSWER: B
EXPERT RATIONALE: Moisture testing is critical before any resilient flooring installation because excess moisture can cause adhesive failure and flooring damage. QUESTION 51 Which type of grout provides the best chemical and stain resistance for commercial kitchen applications? A. Sanded grout B. Unsanded grout C. Epoxy grout D. Acrylic grout CORRECT ANSWER: C EXPERT RATIONALE: Epoxy grout is impervious to chemicals, stains, and moisture, making it the preferred choice for commercial kitchens and food preparation areas. QUESTION 52 What does PEI rating indicate for ceramic tile? A. Price evaluation index B. Porcelain enamel institute abrasion resistance rating C. Professional installation eligibility D. Porosity and expansion index CORRECT ANSWER: B EXPERT RATIONALE: PEI (Porcelain Enamel Institute) rating measures a tile's abrasion resistance and suitability for different traffic levels. QUESTION 53 Which tile rating is suitable for residential bathroom walls? A. PEI 0 B. PEI 1
