Building Materials The basic purpose of a retarder in concrete is To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete To render the concrete more water tight To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete To render the concrete more water tight ANSWER DOWNLOAD EXAMIANS APP
Building Materials The thermosetting plastic At 127°C to 177°C permanently set and further application of heat does not soften it All listed here Becomes rigid when moulded at suitable pressure and temperature Chars at 343°C At 127°C to 177°C permanently set and further application of heat does not soften it All listed here Becomes rigid when moulded at suitable pressure and temperature Chars at 343°C ANSWER DOWNLOAD EXAMIANS APP
Building Materials The trunk of tree left after cutting all the branches is known as Baulk Plank Batten Log Baulk Plank Batten Log ANSWER DOWNLOAD EXAMIANS APP
Building Materials Soundness of cement is tested by Compressive strength testing apparatus Vicat's apparatus Le-chatelier apparatus None of these Compressive strength testing apparatus Vicat's apparatus Le-chatelier apparatus None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is 60° 45° Parallel Right angles 60° 45° Parallel Right angles ANSWER DOWNLOAD EXAMIANS APP
Building Materials Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar. (i) and (ii) (iii) and (iv) (i) and (iv) (ii) and (iii) (i) and (ii) (iii) and (iv) (i) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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