C 54 EXAM 2025 | CERAMIC AND MOSAIC TILE
CONTRACTORS LICENSE EXAM | ALL QUESTIONS
AND CORRECT ANSWERS | GRADED A+ | VERIFIED
ANSWERS | LATEST EXAM
Nonvitreous Tile - ..(ANSWER)...Absorbs more than 7% water. Not for wet areas or
exterior use.
Semi-Vitreous Tile - ..(ANSWER)...Absorbs 3% to 7% water. Can be used in some
interior wet areas if there is waterproofing.
Vitreous Tile - ..(ANSWER)...Absorbs .5% to 3% water and is used both inside and
outside.
Impervious Tile - ..(ANSWER)...Absorbs less .5% water and is used for sanitary
installations.
Lath - ..(ANSWER)...Must not weight less than 2.5 pounds per square yard and
metal lath must be lapped at least 2" on all sides.
Type V Morter Mix - ..(ANSWER)...Used for high sulfate resistants.
Lime - ..(ANSWER)...Increases bond strength and over the years will heal fine
cracks such as those caused by shrinkage.
, Plasticiser - ..(ANSWER)...A cementing agent that increases water retention and
plasticity of mortar.
Mix Ratio for Wall/Ceilings - ..(ANSWER)...1:5:1/2 to 1:7:1
Mix Ratio for Floors - ..(ANSWER)...1:5
Mix Ratio for Showers - ..(ANSWER)...1:4*
Mix Ratio for Roman Tub - ..(ANSWER)...1:4*
Mix Ratio for Countertops - ..(ANSWER)...1:5
Mix Ratio for backsplashes - ..(ANSWER)...1:6:1
Dry Set Mortar Minimum Thickness - ..(ANSWER)...3/32"
How long should latex mortar be allowed to cure for - ..(ANSWER)...14 days
before getting wet. Latex mortar is used in wet areas.
What is Furan Resin Mortar used for? - ..(ANSWER)...It is used in applications
where chemical resistance is important.
CONTRACTORS LICENSE EXAM | ALL QUESTIONS
AND CORRECT ANSWERS | GRADED A+ | VERIFIED
ANSWERS | LATEST EXAM
Nonvitreous Tile - ..(ANSWER)...Absorbs more than 7% water. Not for wet areas or
exterior use.
Semi-Vitreous Tile - ..(ANSWER)...Absorbs 3% to 7% water. Can be used in some
interior wet areas if there is waterproofing.
Vitreous Tile - ..(ANSWER)...Absorbs .5% to 3% water and is used both inside and
outside.
Impervious Tile - ..(ANSWER)...Absorbs less .5% water and is used for sanitary
installations.
Lath - ..(ANSWER)...Must not weight less than 2.5 pounds per square yard and
metal lath must be lapped at least 2" on all sides.
Type V Morter Mix - ..(ANSWER)...Used for high sulfate resistants.
Lime - ..(ANSWER)...Increases bond strength and over the years will heal fine
cracks such as those caused by shrinkage.
, Plasticiser - ..(ANSWER)...A cementing agent that increases water retention and
plasticity of mortar.
Mix Ratio for Wall/Ceilings - ..(ANSWER)...1:5:1/2 to 1:7:1
Mix Ratio for Floors - ..(ANSWER)...1:5
Mix Ratio for Showers - ..(ANSWER)...1:4*
Mix Ratio for Roman Tub - ..(ANSWER)...1:4*
Mix Ratio for Countertops - ..(ANSWER)...1:5
Mix Ratio for backsplashes - ..(ANSWER)...1:6:1
Dry Set Mortar Minimum Thickness - ..(ANSWER)...3/32"
How long should latex mortar be allowed to cure for - ..(ANSWER)...14 days
before getting wet. Latex mortar is used in wet areas.
What is Furan Resin Mortar used for? - ..(ANSWER)...It is used in applications
where chemical resistance is important.
