Chemical Engineering Basics The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is Convection Radiation Both A & B Conduction Convection Radiation Both A & B Conduction 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 Economiser tube life increases due to handling of low temperature water 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C. 1147 1493 597 959 1147 1493 597 959 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. Body centred cubic (bcc) Simple cubic Face centred cubic (fcc) Hexagonal close, packed (hcp) Body centred cubic (bcc) Simple cubic Face centred cubic (fcc) Hexagonal close, packed (hcp) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Kinematic viscosity of water as compared to that of air is 15% more More Same 15% less 15% more More Same 15% less ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics First empirical temperature scale conceived is the __________ temperature scale. Reaumer Absolute Farenhite Celcius Reaumer Absolute Farenhite Celcius ANSWER DOWNLOAD EXAMIANS APP
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