Building Materials The basic purpose of a retarder in concrete is To decrease the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen felt Is used as damp proofing material All listed here Is used as water proofing material Is made from bitumen and hessian fibres Is used as damp proofing material All listed here Is used as water proofing material Is made from bitumen and hessian fibres ANSWER DOWNLOAD EXAMIANS APP
Building Materials Inner part of a timber log surrounding the pitch, is called Heart wood Sapwood None to these Cambium layer Heart wood Sapwood None to these Cambium layer ANSWER DOWNLOAD EXAMIANS APP
Building Materials Oil varnish generally consists of Oil, wax and resin Spirit, oil and wax Resin, oil and turpentine Synthetic resin and spirit Oil, wax and resin Spirit, oil and wax Resin, oil and turpentine Synthetic resin and spirit ANSWER DOWNLOAD EXAMIANS APP
Building Materials Brittleness of cold is due to an excess of Sulphur Carbon Phosphorus Silicon Sulphur Carbon Phosphorus Silicon ANSWER DOWNLOAD EXAMIANS APP
Building Materials For the manufacture of plywood, veneers are placed so that grains of adjacent veneers Inclined at 45° Run at right angles Inclined at 60° Parallel Inclined at 45° Run at right angles Inclined at 60° Parallel ANSWER DOWNLOAD EXAMIANS APP
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