Building Materials Asbestos 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) Is a natural fibrous mineral substance ANSWER DOWNLOAD EXAMIANS APP
Building Materials The hardest rock is Marble Diamond Quartz Talc Marble Diamond Quartz Talc ANSWER DOWNLOAD EXAMIANS APP
Building Materials For a good building stone, its specific gravity should the greater than 3.7 2.3 2.5 2.7 3.7 2.3 2.5 2.7 ANSWER DOWNLOAD EXAMIANS APP
Building Materials The most important tool in brick laying for lifting and spreading mortar and for forming joints is Square Scutch Bolster Trowel Square Scutch Bolster Trowel ANSWER DOWNLOAD EXAMIANS APP
Building Materials If the iron ore contains clay as an impurity, the flux added during calcination, is Argillaceous iron ore Clay Lime stone All listed here Argillaceous iron ore Clay Lime stone All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Due to attack of dry rot, the timber None of these Shrinks Reduces to powder Cracks None of these Shrinks Reduces to powder Cracks ANSWER DOWNLOAD EXAMIANS APP
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