Building Materials Asbestos 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main ingredients of Portland cement are Lime and alumina Lime and iron Silica and alumina Lime and silica Lime and alumina Lime and iron Silica and alumina Lime and silica ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime (or caustic lime) All of these Has great affinity to moisture Is obtained by the calcination of pure lime stone Is amorphous All of these Has great affinity to moisture Is obtained by the calcination of pure lime stone Is amorphous ANSWER DOWNLOAD EXAMIANS APP
Building Materials A bull nose brick is not used for Pillars Arches Rounding off sharp corners Decoration purpose Pillars Arches Rounding off sharp corners Decoration purpose ANSWER DOWNLOAD EXAMIANS APP
Building Materials Good quality stones must All of these Be durable Be free from clay Resist action of acids All of these Be durable Be free from clay Resist action of acids ANSWER DOWNLOAD EXAMIANS APP
Building Materials The steel used for the manufacture of rails, is Bessemer steel Stainless steel Mild steel Cast steel Bessemer steel Stainless steel Mild steel Cast steel ANSWER DOWNLOAD EXAMIANS APP
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