TEST EXAM QUESTIONS AND CORRECT ANSWERS FOR C54 B. LATEST UPDATE 2025. GRADE A+

TEST EXAM QUESTIONS AND CORRECT ANSWERS FOR C54 B. LATEST
UPDATE 2025. GRADE A+



QUESTION: Non vitreous Tile - ANSWER-Absorbs more than 7% water. Not for wet areas or exterior use.




QUESTION: Semi-Vitreous Tile - ANSWER-Absorbs 3% to 7% water. Can be used in some interior wet
areas if there is waterproofing.




QUESTION: Vitreous Tile - ANSWER-Absorbs .5% to 3% water and is used both inside and outside.




QUESTION: Impervious Tile - ANSWER-Absorbs less .5% water and is used for sanitary installations.




QUESTION: 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.




QUESTION: Type V Morter Mix - ANSWER-Used for high sulfate resistants.




QUESTION: Lime - ANSWER-Increases bond strength and over the years will heal fine cracks such as
those caused by shrinkage.

, QUESTION: Plasticiser - ANSWER-A cementing agent that increases water retention and plasticity of
mortar.




QUESTION: Mix Ratio for Wall/Ceilings - ANSWER-1:5:1/2 to 1:7:1




QUESTION: Mix Ratio for Floors - ANSWER-1:5




QUESTION: Mix Ratio for Showers - ANSWER-1:4*




QUESTION: Mix Ratio for Roman Tub - ANSWER-1:4*




QUESTION: Mix Ratio for Countertops - ANSWER-1:5




QUESTION: Mix Ratio for backsplashes - ANSWER-1:6:1




QUESTION: Dry Set Mortar Minimum Thickness - ANSWER-3/32"




QUESTION: How long should latex mortar be allowed to cure for - ANSWER-14 days

before getting wet. Latex mortar is used in wet areas.