Chemical Process Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to Increase its viscosity Increase the variation in its viscosity with temperature Reduce the variation in its viscosity with temperature Reduce its viscosity Increase its viscosity Increase the variation in its viscosity with temperature Reduce the variation in its viscosity with temperature Reduce its viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass. Soda lime Lead Alkali silicate Borosilicate Soda lime Lead Alkali silicate Borosilicate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is an yellow pigment? Zinc sulphides Ferrous sulphate Titanium dioxide Lead chromates Zinc sulphides Ferrous sulphate Titanium dioxide Lead chromates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following impurities in feed water for high pressure boiler is the most detrimental? Dissolved salt Silica Suspended salt Dissolved oxygen Dissolved salt Silica Suspended salt Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Blue colour is imparted to glass by the addition of PbO FeSO₄ CaO NaOH PbO FeSO₄ CaO NaOH ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Electric bulbs are made of __________ glass. Flint Jena Crookes Pyrex Flint Jena Crookes Pyrex ANSWER DOWNLOAD EXAMIANS APP