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