Building Materials Asbestos Is a natural fibrous mineral substance All of these Contains iron oxide and alumina Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance All of these Contains iron oxide and alumina Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos cement All of these Is brittle Warps due to changes in humidity Strength is lowered when saturated by water All of these Is brittle Warps due to changes in humidity Strength is lowered when saturated by water ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina in a good brick earth lies between 70 to 80 % 20 to 30 % 50 to 60 % 5 to 10 % 70 to 80 % 20 to 30 % 50 to 60 % 5 to 10 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Percentage of silica in a good brick earth lies between 20 to 30 % 5 to 10 % 70 to 80 % 50 to 60 % 20 to 30 % 5 to 10 % 70 to 80 % 50 to 60 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The standard size of masonry bricks, is 19 cm x 9 cm x 9 cm 18 cm x 8 cm x 8 cm 21 cm x 11 cm x 11 cm 20 cm x 10 cm x 10 cm 19 cm x 9 cm x 9 cm 18 cm x 8 cm x 8 cm 21 cm x 11 cm x 11 cm 20 cm x 10 cm x 10 cm ANSWER DOWNLOAD EXAMIANS APP
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