Building Materials Asbestos Contains iron oxide and alumina All of these Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance Contains iron oxide and alumina All of these Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance ANSWER DOWNLOAD EXAMIANS APP
Building Materials For the manufacture of plywood, veneers are placed so that grains of adjacent veneers Inclined at 60° Parallel Inclined at 45° Run at right angles Inclined at 60° Parallel Inclined at 45° Run at right angles ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main function of alumina in brick earth is To impart plasticity To make the brick durable To make the brick impermeable To prevent shrinkage To impart plasticity To make the brick durable To make the brick impermeable To prevent shrinkage ANSWER DOWNLOAD EXAMIANS APP
Building Materials The basic purpose of a retarder in concrete is To decrease the initial setting time of cement paste in concrete To increase the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix To decrease the initial setting time of cement paste in concrete To increase the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix ANSWER DOWNLOAD EXAMIANS APP
Building Materials Cast iron is used for Structural works in beams None to these Small sized water pipes Columns and struts Structural works in beams None to these Small sized water pipes Columns and struts ANSWER DOWNLOAD EXAMIANS APP
Building Materials As per IS specifications, the maximum final setting time for ordinary Portland cement should be 30 minutes 6 hours 10 hours 1 hour 30 minutes 6 hours 10 hours 1 hour ANSWER DOWNLOAD EXAMIANS APP
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