Building Materials Pick up the compound responsible for early strength of cement from the following: Tri-calcium silicate Tetra-calcium alumino-ferrite Tri-calcium aluminate Di-calcium silicate Tri-calcium silicate Tetra-calcium alumino-ferrite Tri-calcium aluminate Di-calcium silicate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rocks formed due to alteration of original structure due to heat and excessive pressure are called Sedimentary rocks Igneous rocks Metamorphic rocks None of these Sedimentary rocks Igneous rocks Metamorphic rocks None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime (or caustic lime) All of these Has great affinity to moisture Is amorphous Is obtained by the calcination of pure lime stone All of these Has great affinity to moisture Is amorphous Is obtained by the calcination of pure lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Excess of alumina in brick earth makes the brick Impermeable Brittle and weak To lose cohesion To crack and warp on drying Impermeable Brittle and weak To lose cohesion To crack and warp on drying ANSWER DOWNLOAD EXAMIANS APP
Building Materials Percentage of silica in a good brick earth lies between 20 to 30 % 50 to 60 % 70 to 80 % 5 to 10 % 20 to 30 % 50 to 60 % 70 to 80 % 5 to 10 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Good quality stones must Be free from clay Be durable Resist action of acids All of these Be free from clay Be durable Resist action of acids All of these ANSWER DOWNLOAD EXAMIANS APP
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