Chemical Engineering Basics A suitable lubricant used for watches is Palm oil Metallic soap solution Grease Hazel-nut oil Palm oil Metallic soap solution Grease Hazel-nut oil ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Thermal efficiency of an internal combustion engine is around __________ percent. 8 80 35 65 8 80 35 65 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by Increasing the concentration of zinc sulphate solution Increasing the concentration of copper sulphate solution Decreasing the surface area of the electrodes Increasing the surface area of the electrodes Increasing the concentration of zinc sulphate solution Increasing the concentration of copper sulphate solution Decreasing the surface area of the electrodes Increasing the surface area of the electrodes ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its higher co-efficient of performance (COP) Its high heat transfer rate Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its higher co-efficient of performance (COP) Its high heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material? Glass Rubber Steel Brass Glass Rubber Steel Brass 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 ? Scale formation rate on economiser tubes increases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases ANSWER DOWNLOAD EXAMIANS APP
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