CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A
2026|INSTANT DOWNLOAD PDF
1. What is the primary purpose of subfloor preparation before
installing flooring?
A. To change flooring color
B. To ensure a level, clean, and stable surface
C. To increase room temperature
D. To reduce paint usage
Rationale: Proper subfloor preparation prevents uneven
surfaces, squeaks, and premature flooring failure.
Correct Answer: B. To ensure a level, clean, and stable surface
2. Which moisture level is generally considered acceptable for
concrete subfloors before installation?
A. 25%
B. 15%
C. Within manufacturer specifications
D. 50%
,Rationale: Flooring manufacturers set moisture limits to
prevent warping and adhesive failure.
Correct Answer: C. Within manufacturer specifications
3. What tool is commonly used to check floor levelness?
A. Tape measure
B. Chalk line
C. Spirit level
D. Crowbar
Rationale: A spirit level determines flatness and slope of
flooring surfaces.
Correct Answer: C. Spirit level
4. Which flooring type is most resistant to water damage?
A. Hardwood
B. Laminate
C. Vinyl plank
D. Carpet
Rationale: Vinyl is waterproof and ideal for moisture-prone
areas.
Correct Answer: C. Vinyl plank
5. What is acclimation in flooring installation?
,A. Painting floors before installation
B. Allowing flooring to adjust to room temperature and
humidity
C. Cutting flooring into shape
D. Cleaning the subfloor
Rationale: Acclimation prevents expansion or contraction after
installation.
Correct Answer: B. Allowing flooring to adjust to room
temperature and humidity
6. Which adhesive is commonly used for vinyl flooring?
A. Epoxy resin
B. Water-based adhesive
C. Wood glue
D. Cement mix
Rationale: Vinyl flooring typically uses manufacturer-approved
water-based adhesives.
Correct Answer: B. Water-based adhesive
7. What causes “cupping” in hardwood flooring?
A. Excess sunlight
B. Excess moisture underneath flooring
C. Poor painting
D. Over-polishing
, Rationale: Moisture imbalance causes wood edges to rise.
Correct Answer: B. Excess moisture underneath flooring
8. Which safety equipment is MOST important when cutting
flooring materials?
A. Sunglasses
B. Safety gloves and goggles
C. Earphones
D. Sandals
Rationale: Cutting tools create debris and sharp edges requiring
protection.
Correct Answer: B. Safety gloves and goggles
9. What is the main purpose of underlayment?
A. Decoration
B. Sound insulation and moisture barrier
C. Color enhancement
D. Increasing floor height only
Rationale: Underlayment improves comfort, sound, and
moisture resistance.
Correct Answer: B. Sound insulation and moisture barrier
10. Which flooring is installed using a click-lock system?