Practice Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
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1. Which type of adhesive is most suitable for installing ceramic wall
tiles in a high-moisture area?
a) Epoxy mortar
b) Thin-set mortar
c) Portland cement concrete
d) Mastic adhesive
Thin-set mortar is water-resistant and adheres well to ceramic tiles
in wet areas.
2. What is the standard thickness of most floor tiles?
a) 1/8 inch
b) 1/4 inch
c) 3/8 inch
d) 1/2 inch
Most floor tiles are manufactured at approximately 3/8 inch for
durability and support.
3. What is the purpose of a tile spacer?
a) To apply grout evenly
b) To cut tiles accurately
c) To maintain consistent gaps between tiles
d) To mix mortar
, Tile spacers ensure uniform grout lines, improving both aesthetics
and structural integrity.
4. Which type of tile is recommended for exterior use in freeze-thaw
climates?
a) Ceramic wall tile
b) Porcelain tile
c) Unglazed porcelain tile
d) Glass mosaic
Unglazed porcelain is dense and resistant to water absorption,
making it ideal for freeze-thaw conditions.
5. What tool is typically used to cut ceramic tile in a straight line?
a) Angle grinder
b) Jigsaw
c) Tile cutter (manual or electric)
d) Circular saw
Tile cutters are designed specifically to score and snap ceramic
tiles accurately.
6. Which method is commonly used to prepare a substrate for tile
installation?
a) Sanding and staining
b) Painting with primer
c) Cleaning, leveling, and applying a suitable underlayment
d) Gluing directly over drywall
Proper substrate preparation ensures adhesion and prevents tile
failure.
7. What is the minimum recommended thickness for a cement
backer board under floor tiles?
, a) 1/8 inch
b) 1/4 inch
c) 1/2 inch
d) 3/4 inch
1/2 inch backer board provides sufficient support and prevents
movement that could crack tiles.
8. When installing large-format tiles, what technique helps reduce
lippage?
a) Using thicker grout
b) Applying a leveling system or tile leveling clips
c) Setting tiles dry
d) Using extra thin-set on edges only
Tile leveling systems prevent uneven edges between large tiles,
reducing trip hazards and improving finish.
9. What is the main purpose of grout?
a) To seal tile surfaces
b) To decorate tiles
c) To fill gaps between tiles and prevent movement
d) To stick tiles to the substrate
Grout stabilizes tiles, prevents debris from filling gaps, and
contributes to waterproofing.
10. Which type of tile layout is considered traditional for small
square tiles?
a) Diagonal
b) Straight (grid) layout
c) Herringbone
d) Basket weave