Chemical Engineering Basics Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is Reduced preferentially Cheaper Oxidised preferentially Lighter Reduced preferentially Cheaper Oxidised preferentially Lighter ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Surface tension is due to the __________ forces. Difference between adhesive & cohesive Adhesive Viscous Cohesive Difference between adhesive & cohesive Adhesive Viscous Cohesive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is Black Green Yellow Silver grey Black Green Yellow Silver grey ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its high heat transfer rate Low temperature encountered at high altitude Its low unit weight per ton of refrigeration Its higher co-efficient of performance (COP) Its high heat transfer rate Low temperature encountered at high altitude Its low unit weight per ton of refrigeration Its higher co-efficient of performance (COP) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ? It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Economiser tube life increases due to handling of low temperature water It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Economiser tube life increases due to handling of low temperature water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Buoyancy force depends on the __________ the liquid. Depth of immersion in Viscosity of Displaced mass of Surface tension of Depth of immersion in Viscosity of Displaced mass of Surface tension of ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS