Building Materials The basic purpose of a retarder in concrete is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Plywood is normally available 2 mm thick 1 mm thick 3 mm to 4 mm thick 2 to 3 mm thick 2 mm thick 1 mm thick 3 mm to 4 mm thick 2 to 3 mm thick ANSWER DOWNLOAD EXAMIANS APP
Building Materials Three basic raw materials which are needed in large quantities for production of steel are Iron ore, carbon and sulphur Iron ore, coal and lime stone Iron ore, coal and sulphur Iron ore, carbon and lime stone Iron ore, carbon and sulphur Iron ore, coal and lime stone Iron ore, coal and sulphur Iron ore, carbon and lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime (or caustic lime) Is amorphous Has great affinity to moisture All of these Is obtained by the calcination of pure lime stone Is amorphous Has great affinity to moisture All of these Is obtained by the calcination of pure lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Glazing of clay products, is done All listed here To improve their appearance To protect them from corrosive action To protect them from atmospheric effect All listed here To improve their appearance To protect them from corrosive action To protect them from atmospheric effect ANSWER DOWNLOAD EXAMIANS APP
Building Materials The minimum compressive strength of 1st class bricks should be 75 kg/cm² 100 kg/cm² 75 kg/cm² 120 kg/cm² 75 kg/cm² 100 kg/cm² 75 kg/cm² 120 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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