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