Chemical Engineering Basics Kinematic viscosity of water as compared to that of air is Same More 15% less 15% more Same More 15% less 15% more ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ of air does not increase with increase in temperature. Thermal conductivity Density Viscosity Thermal diffusivity Thermal conductivity Density Viscosity Thermal diffusivity 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 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 ANSWER DOWNLOAD EXAMIANS APP
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 Lighter Cheaper Oxidised preferentially Reduced preferentially Lighter Cheaper Oxidised preferentially Reduced preferentially ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ is the most suitable lubricant for drawing mild steel wires? Water Lime water Kerosene Sodium stearate Water Lime water Kerosene Sodium stearate ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is Conduction Both A & B Convection Radiation Conduction Both A & B Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
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