Building Materials The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called: Wind cracks Twisted fibres Heart shakes Radial shakes Wind cracks Twisted fibres Heart shakes Radial shakes ANSWER DOWNLOAD EXAMIANS APP
Building Materials The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to Grey cast iron Mottled cast iron White cast iron Toughed cast iron Grey cast iron Mottled cast iron White cast iron Toughed cast iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is Equal to 1 Greater than 1 Less than 1 in beams but greater than 1 in channels Less than 1 Equal to 1 Greater than 1 Less than 1 in beams but greater than 1 in channels Less than 1 ANSWER DOWNLOAD EXAMIANS APP
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 render the concrete more water tight To increase the initial setting time of cement paste in concrete To improve the workability of concrete mix To decrease the initial setting time of cement paste in concrete To render the concrete more water tight To increase the initial setting time of cement paste in concrete ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main constituent of cement which is responsible for initial setting of cement is tricalcium silicate All of these tricalcium aluminate dicalcium silicate tricalcium silicate All of these tricalcium aluminate dicalcium silicate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Slacking of lime is affected by Immersing the lime in water Keeping it exposed to air None of these Crushing the lime lumps Immersing the lime in water Keeping it exposed to air None of these Crushing the lime lumps ANSWER DOWNLOAD EXAMIANS APP
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