Building Materials The basic purpose of a retarder in concrete is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Building Materials A heavy stone is suitable for Roads Arches Rubble masonry Retaining walls Roads Arches Rubble masonry Retaining walls ANSWER DOWNLOAD EXAMIANS APP
Building Materials If āPā is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is 0.75 P 0.85 P 0.70 P 0.80 P 0.75 P 0.85 P 0.70 P 0.80 P 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 White cast iron Mottled cast iron Grey cast iron Toughed cast iron White cast iron Mottled cast iron Grey cast iron Toughed cast iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gneiss is obtained from Igneous rocks Metamorphic rocks Sedimentary rocks Sedimentary metamorphic rocks Igneous rocks Metamorphic rocks Sedimentary rocks Sedimentary metamorphic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Second class bricks Produce a metallic sound when struck Are under burnt Are of dark brown color Are well burnt Produce a metallic sound when struck Are under burnt Are of dark brown color Are well burnt ANSWER DOWNLOAD EXAMIANS APP
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