Chemical Process The function of gypsum addition during cement making is to Both A and B Increase the density of cement Decrease the cement setting rate Neither A nor B Both A and B Increase the density of cement Decrease the cement setting rate Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Reverse osmosis is normally used for the Purification of oxygen Separation of isotopes of uranium from gaseous uranium hexaflouride Desalination of brackish water to produce potable (drinking) water Separation of helium from natural gas Purification of oxygen Separation of isotopes of uranium from gaseous uranium hexaflouride Desalination of brackish water to produce potable (drinking) water Separation of helium from natural gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Filtration (through gravity sand filter) Boiling Addition of alum (a coagulant) Addition of lime Filtration (through gravity sand filter) Boiling Addition of alum (a coagulant) Addition of lime ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Main constituent of limestone is CaSO₄ MgCO₃ Na₂CO₃ CaCO₃ CaSO₄ MgCO₃ Na₂CO₃ CaCO₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm. 8500 4000 1600 800 8500 4000 1600 800 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is the major constituent of the Portland cement. Calcium sulphate Tricalcium silicate Calcium carbonate Calcium oxide Calcium sulphate Tricalcium silicate Calcium carbonate Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
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