Understanding
and Installing Ceramic Tile
What is the minimum
wet-film thickness of a dry-set mortar bond coat?
What is the minimum recommended coverage under industry standards
in dry interior conditions? Exterior?
What is the allowable deflection on a floor with a 15-foot span?
What type of absorption must a porcelain tile have?
Most large floor tile is made by what manufacturing process?
What is the allowable size variation for most floor tile?
Is a tub enclosure considered a wet area according to TCNA?
Is OSB an acceptable substrate for any tile installation method
under industry guidelines?
Metal studs should be what gauge for walls to receive ceramic
tile?
Interior tile work exposed to direct sun should have joints
placed every how many feet?
What is the maximum allowance for variation between sheets of
plywood under industry standards?
ANSWERS
Waterproofing,
Crack Isolation, and Motar Shower Bases
Is a cleavage membrane waterproof?
How high over the curb should the waterproof membrane extend?
What is the recommended mix ratio of sand and cement for shower
floors?
What is the proper pitch under a shower pan?
What is the difference between a vapor barrier and vapor retarder?
Most adhesive applied membranes may fail if the pH level of
the concrete is how high?
What are weep holes and what must be done to assure they work?
Are all waterproof membranes rated for submerged applications?
If something has a perm rating of less than 1, what is it?
Whats the difference between a PVC and CPE membrane?
ANSWERS
Ceramic
Tile Inspection Course Under ANSI A-108. 11 Cement
backer units can be installed over
A. 19.2" Centers
B. 24" Centers
C. 16" Centers
D. All of the above
The basis of acceptance for Standard Grade tile using an 80
tile lot of glazed wall or quarry tile allows for how many
tile may have facial and structural defects before rejection
of the lot?
A. 5
B. 6
C. 7
D. 10
The standard test for performance rating using a flooring
system as defined under ASTM C627 is known as:
A. Articulated Strut
B. Dynamic Slider
C. Universal Floor tester
E. Robinson Floor Test
The Gypsum Association Standards for the application and finishing
of Gypsum Board are
A. GA-230
B. GA-216
C. GA-217
D. GA-219
Which material should be used for bonding a 12 x 12 porcelain
tile in direct bond applications:
A. 118.1
B. 118.2
C. 118.4
D. 118.7
The allowable moisture content for concrete surfaces to receive
ceramic tile using thinset is:
A. 3%
B. 5%
C. 7%
E. None of above
The expansion joint in an interior floor exposed to direct
sunlight under EJ 171 should be:
A. 16' - 24'
B. 12' - 16'
C. 8'-12"
D. 20' - 32'
Which of the following would not be considered a cleavage
membrane under ANSI standards.
A. 4 Mil plastic
B. 15 # felt
C. 30 # felt
D. Red Rosin
Which of the following is the absorption rate of a semi Vitreous
tile:
A. 3 - 7%
B. less than .05%
C. .05 - .3%
D. Greater than 7%
The breaking strength for ceramic mosaic shall be:
A. Greater than 250 PSI
B. Less than 250 PSI
C. Greater than 150 PSI
D. Greater than 200 PSI
ANSWERS
WFCA/CTEF RITE Program for Ceramic Tile What is the minimum wet-film
thickness of a dry-set mortar bond coat?
What is the minimum recommended coverage under industry standards
in dry interior conditions? Exterior?
What is the allowable deflection on a floor with a 15-foot
span?
What type of absorption must a porcelain tile have?
Most large floor tile is made by what manufacturing process?
What is the allowable size variation for most floor tile?
Is a tub enclosure considered a wet area according to TCNA?
Is OSB an acceptable substrate for any tile installation method
under industry guidelines?
Metal studs should be what gauge for walls to receive ceramic
tile?
Interior tile work exposed to direct sun should have joints
placed every how many feet?
What is the maximum allowance for variation between sheets
of plywood under industry standards?
ANSWERS
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