Chemical Engineering Basics Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type Parallel flow with equal heat capacities Parallel flow with unequal heat capacities Counter flow with unequal heat capacities Counter flow with equal heat capacities Parallel flow with equal heat capacities Parallel flow with unequal heat capacities Counter flow with unequal heat capacities Counter flow with equal heat capacities 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 ? 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 Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases 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 Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Specific __________ is a dimensionless quantity. Humidity Weight Heat None of these Humidity Weight Heat None of these ANSWER DOWNLOAD EXAMIANS APP
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 Decreases & increases Increases & increases Increases & decreases Decreases & decreases Decreases & increases Increases & increases Increases & decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics If the head is doubled in & centrifugal pump, the power required will increase in the ratio of 23 25/2 21/3 23/2 23 25/2 21/3 23/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Coke is added in the blast furnace to Reduce & melt the iron ore Increase the fluidity of slag Remove sulphur & phosphorus from molten metal None of these Reduce & melt the iron ore Increase the fluidity of slag Remove sulphur & phosphorus from molten metal None of these ANSWER DOWNLOAD EXAMIANS APP
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