Chemical Process Washing of coal is done to Reduce the ash content Both B and C Remove the inherent impurities Remove the adhering impurities Reduce the ash content Both B and C Remove the inherent impurities Remove the adhering impurities ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Brackish water which contains mostly dissolved salt, can be purified by the __________ process. Permutit Sand filter Reverse osmosis Lime soda Permutit Sand filter Reverse osmosis Lime soda ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The function of gypsum addition during cement making is to Decrease the cement setting rate Increase the density of cement Neither A nor B Both A and B Decrease the cement setting rate Increase the density of cement Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Wet chlorine gas produced during electrolysis of brine is dehydrated by Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of silica gel None of these Passing it through a bed of diatomaceous earth Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of silica gel None of these Passing it through a bed of diatomaceous earth 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. 800 4000 1600 8500 800 4000 1600 8500 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda? High specific gravity of mercury High cost of mercury Non-availability of high purity mercury Pollution of water stream by mercury High specific gravity of mercury High cost of mercury Non-availability of high purity mercury Pollution of water stream by mercury ANSWER DOWNLOAD EXAMIANS APP
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