AK TILE & TERRAZZO CONTRACTOR EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFED
ANSWERS) Q&A 2027 |INSTANT DOWNLOAD PDF
1. What is the primary purpose of properly preparing a
substrate before installing tile?
A. To increase tile color variation
B. To provide a clean, sound, stable, and suitable surface
C. To reduce grout color
D. To make tiles heavier
Answer: B. To provide a clean, sound, stable, and suitable
surface
Rationale: Tile installation depends heavily on the condition of
the substrate. A stable, properly prepared surface helps
prevent cracking, debonding, and uneven finishes.
2. Which condition is most important before applying a tile-
setting material?
A. The substrate should be structurally sound
B. The substrate should be covered with dust
C. The substrate should be oily
D. The substrate should be loose
Answer: A. The substrate should be structurally sound
Rationale: A weak or unstable substrate can cause the tile
,installation to fail regardless of the quality of the tile or
adhesive.
3. What tool is commonly used to check whether a surface is
level?
A. Chalk box
B. Level
C. Tile nipper
D. Grout float
Answer: B. Level
Rationale: A level is designed to determine whether a surface is
horizontal or vertical.
4. What is the primary purpose of a chalk line during tile
layout?
A. Cutting tile
B. Establishing straight reference lines
C. Mixing mortar
D. Cleaning grout
Answer: B. Establishing straight reference lines
Rationale: Chalk lines provide accurate reference points for
maintaining alignment during installation.
,5. Why should tile layout normally be planned before
installation begins?
A. To eliminate the need for grout
B. To minimize undesirable cuts and maintain balanced
appearance
C. To make mortar dry faster
D. To change the tile manufacturer's specifications
Answer: B. To minimize undesirable cuts and maintain
balanced appearance
Rationale: Proper layout improves appearance and helps avoid
very narrow pieces at walls, corners, and other boundaries.
6. What is thin-set mortar primarily used for?
A. Painting walls
B. Bonding tile to an approved substrate
C. Sealing wood
D. Polishing terrazzo
Answer: B. Bonding tile to an approved substrate
Rationale: Thin-set mortar is a cementitious or modified setting
material designed to bond tile to suitable surfaces.
7. What does the term "open time" generally refer to in tile
installation?
, A. Time required to open a box of tile
B. Time a setting material remains workable for bonding after
application
C. Time required to clean tools
D. Time required to order materials
Answer: B. Time a setting material remains workable for
bonding after application
Rationale: Exceeding the manufacturer's specified open time
can reduce adhesion.
8. Why is a notched trowel used when applying thin-set
mortar?
A. To produce uniform ridges of mortar
B. To cut tile
C. To polish grout
D. To measure tile
Answer: A. To produce uniform ridges of mortar
Rationale: Notches help control mortar thickness and facilitate
consistent coverage beneath the tile.
9. What should generally be done if thin-set mortar has
skinned over before tile placement?
A. Install tile directly over it
B. Reactivate it with water
QUESTIONS AND CORRECT ANSWERS (VERIFED
ANSWERS) Q&A 2027 |INSTANT DOWNLOAD PDF
1. What is the primary purpose of properly preparing a
substrate before installing tile?
A. To increase tile color variation
B. To provide a clean, sound, stable, and suitable surface
C. To reduce grout color
D. To make tiles heavier
Answer: B. To provide a clean, sound, stable, and suitable
surface
Rationale: Tile installation depends heavily on the condition of
the substrate. A stable, properly prepared surface helps
prevent cracking, debonding, and uneven finishes.
2. Which condition is most important before applying a tile-
setting material?
A. The substrate should be structurally sound
B. The substrate should be covered with dust
C. The substrate should be oily
D. The substrate should be loose
Answer: A. The substrate should be structurally sound
Rationale: A weak or unstable substrate can cause the tile
,installation to fail regardless of the quality of the tile or
adhesive.
3. What tool is commonly used to check whether a surface is
level?
A. Chalk box
B. Level
C. Tile nipper
D. Grout float
Answer: B. Level
Rationale: A level is designed to determine whether a surface is
horizontal or vertical.
4. What is the primary purpose of a chalk line during tile
layout?
A. Cutting tile
B. Establishing straight reference lines
C. Mixing mortar
D. Cleaning grout
Answer: B. Establishing straight reference lines
Rationale: Chalk lines provide accurate reference points for
maintaining alignment during installation.
,5. Why should tile layout normally be planned before
installation begins?
A. To eliminate the need for grout
B. To minimize undesirable cuts and maintain balanced
appearance
C. To make mortar dry faster
D. To change the tile manufacturer's specifications
Answer: B. To minimize undesirable cuts and maintain
balanced appearance
Rationale: Proper layout improves appearance and helps avoid
very narrow pieces at walls, corners, and other boundaries.
6. What is thin-set mortar primarily used for?
A. Painting walls
B. Bonding tile to an approved substrate
C. Sealing wood
D. Polishing terrazzo
Answer: B. Bonding tile to an approved substrate
Rationale: Thin-set mortar is a cementitious or modified setting
material designed to bond tile to suitable surfaces.
7. What does the term "open time" generally refer to in tile
installation?
, A. Time required to open a box of tile
B. Time a setting material remains workable for bonding after
application
C. Time required to clean tools
D. Time required to order materials
Answer: B. Time a setting material remains workable for
bonding after application
Rationale: Exceeding the manufacturer's specified open time
can reduce adhesion.
8. Why is a notched trowel used when applying thin-set
mortar?
A. To produce uniform ridges of mortar
B. To cut tile
C. To polish grout
D. To measure tile
Answer: A. To produce uniform ridges of mortar
Rationale: Notches help control mortar thickness and facilitate
consistent coverage beneath the tile.
9. What should generally be done if thin-set mortar has
skinned over before tile placement?
A. Install tile directly over it
B. Reactivate it with water
