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