Ohio Master Tile Setter Exam 2026–2027 | Verified Q&A with Rationales

Ohio Master Tile Setter Exam Questions
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And Correct Answers (Verified Answers)
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Plus Rationales 2026|2027 Q&A |
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Instant Download Pdf
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1. Which type of substrate is most suitable for installing ceramic wall tile
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in a wet area?
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A. Plywood
B. Cement backer board b b




C. Particleboard
D. Drywall

Rationale: Cement backer board is water-resistant and provides a stable
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substrate for tile in wet areas, unlike wood or drywall.
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2. What is the standard thickness of a ceramic floor tile?
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A. 1/8 inch b




B. 1/4 inch b

,C. 3/8 inch b




D. 1/2 inch b




Rationale: Most standard ceramic floor tiles are approximately 3/8 inch
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thick to provide durability and support for foot traffic.
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3. Which trowel notch size is recommended for 12x12 inch floor tile?
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A. 1/4 inch b




B. 1/8 inch b




C. 1/2 inch b




D. 3/8 inch b




Rationale: A 1/2 inch notch trowel provides adequate mortar coverage for
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medium to large tiles to prevent hollow spots.
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4. What is the minimum expansion joint spacing for ceramic tile
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b installations?
A. 8 feet
b




B. 10 feet b




C. 12 feet b




D. 16 feet b




Rationale: Expansion joints are typically placed every 12 feet to allow for
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movement and prevent cracking.
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5. Which method is best for cutting porcelain tile accurately?
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A. Scoring by hand b b




B. Snapping with pliers b b

,C. Wet saw b




D. Chisel only b




Rationale: Porcelain is very dense and brittle; a wet saw ensures a clean,
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precise cut.
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6. What is the purpose of a mud bed in tile installation?
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A. Decorative base b




B. Provide a level and stable substrate
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C. Reduce weight b




D. Adhesive alternative b




Rationale: Mud beds create a stable, level surface for tile installation,
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especially over uneven substrates.
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7. Which ANSI standard covers ceramic tile installation specifications?
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A. ANSI A108 b




B. ANSI A108/A118/A136
b




C. ANSI Z124 b




D. ANSI B101 b




Rationale: ANSI A108/A118/A136 cover installation materials, methods,
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and performance standards for tile installations.
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8. How deep should a tile groove for a floating floor system be?
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A. 1/16 inch b




B. 1/8 inch
b

, C. 1/4 inch b




D. 1/2 inch b




Rationale: A 1/4 inch groove is standard to accommodate expansion and
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interlocking without cracking.
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9. Which type of grout is best for a high-moisture area?
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A. Sanded grout b




B. Non-sanded grout b




C. Epoxy grout b




D. Cement grout b




Rationale: Epoxy grout is water-resistant and highly durable, making it
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ideal for wet areas.
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10. What is the typical coverage of a 25 lb bag of thin-set mortar?
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A. 50 sq ft
b b




B. 70 sq ft
b b




C. 90 sq ft
b b




D. 120 sq ft b b




Rationale: Coverage varies by trowel size, but a 25 lb bag typically covers
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90 sq ft with standard applications.
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11. Which tool is used to check the flatness of a tile substrate?
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A. Hammer
B. Level