Heat Transfer Natural convection is characterised by Peclet number Reynolds number Prandtl number Grashhoff number Peclet number Reynolds number Prandtl number Grashhoff number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas Remains same May increase or decrease depending on the type of gas Increases Decreases Remains same May increase or decrease depending on the type of gas Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Maximum resistance in the series Average of all resistances Minimum resistance presents in the series Sum of all resistances Maximum resistance in the series Average of all resistances Minimum resistance presents in the series Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are preferably useful, when High viscosity liquid is to be cooled Requirement of heat transfer area is low Overall heat transfer co-efficient is very high A corrosive liquid is to be heated High viscosity liquid is to be cooled Requirement of heat transfer area is low Overall heat transfer co-efficient is very high A corrosive liquid is to be heated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate per unit area is called heat transfer co-efficient thermal diffusivity thermal conductivity heat flux heat transfer co-efficient thermal diffusivity thermal conductivity heat flux ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Finned tube heat exchangers give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity are used for smaller heat load give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity are used for smaller heat load ANSWER DOWNLOAD EXAMIANS APP
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