Chemical Engineering Basics When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively Decreases & decreases Increases & increases Decreases & increases Increases & decreases Decreases & decreases Increases & increases Decreases & increases Increases & decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Frost formation on the evaporator tubes in the domestic refrigerators Is immaterial Causes heat loss due to poor heat transfer Can be prevented by proper design Decreased compressor power Is immaterial Causes heat loss due to poor heat transfer Can be prevented by proper design Decreased compressor power ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Coke is added in the blast furnace to Reduce & melt the iron ore None of these Increase the fluidity of slag Remove sulphur & phosphorus from molten metal Reduce & melt the iron ore None of these Increase the fluidity of slag Remove sulphur & phosphorus from molten metal 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 ? Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases 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 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 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 Economiser tube life increases due to handling of low temperature water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Atomic __________ of an element is a whole number. Radius Weight Volume Number Radius Weight Volume Number ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The basic function of the drum in a boiler is to Separate steam from water Remove settling impurities from steam Act as a storage for feed water Act as a storage for steam Separate steam from water Remove settling impurities from steam Act as a storage for feed water Act as a storage for steam ANSWER DOWNLOAD EXAMIANS APP
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