Chemical Process Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to Increase the variation in its viscosity with temperature Increase its viscosity Reduce its viscosity Reduce the variation in its viscosity with temperature Increase the variation in its viscosity with temperature Increase its viscosity Reduce its viscosity Reduce the variation in its viscosity with temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The amount of benzene present in pure benzol is about __________ percent. 70 30 50 90 70 30 50 90 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Phosphoric acid is prepared from Rock phosphate Chalcopyrite Cryolite None of these Rock phosphate Chalcopyrite Cryolite None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which oil is preferred for paint manufacture? Semi-drying oil Drying oil Saturated oil Non-drying oil Semi-drying oil Drying oil Saturated oil Non-drying oil 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. 1600 8500 4000 800 1600 8500 4000 800 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Systemic insecticides Emit poisonous vapour Kill insects following external bodily contact Are stomach poisons Are absorbed throughout the plant Emit poisonous vapour Kill insects following external bodily contact Are stomach poisons Are absorbed throughout the plant ANSWER DOWNLOAD EXAMIANS APP
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