Heat and Mass Transfer The amount of heat flow through a body by conduction is All of these Dependent upon the material of the body Directly proportional to the temperature difference on the two faces of the body Directly proportional to the surface area of the body All of these Dependent upon the material of the body Directly proportional to the temperature difference on the two faces of the body Directly proportional to the surface area of the body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is Depends on the area of heat exchanger Lower Same Higher Depends on the area of heat exchanger Lower Same Higher ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A composite slab has two layers of different materials with thermal conductivities k₁ and k₂. If each layer has the same thickness, then the equivalent thermal conductivity of the slab will be k₁ k₂ (k₁ + k₂)/ k₁ k₂ 2 k₁ k₂/ (k₁ + k₂) (k₁ + k₂) k₁ k₂ (k₁ + k₂)/ k₁ k₂ 2 k₁ k₂/ (k₁ + k₂) (k₁ + k₂) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When heat is transferred from hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by Conduction Conduction and convection Radiation Convection Conduction Conduction and convection Radiation Convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat exchangers, degree of approach is defined as the difference between temperatures of Cold water inlet and outlet Hot medium outlet and cold water outlet Hot medium inlet and outlet Hot medium outlet and cold water inlet Cold water inlet and outlet Hot medium outlet and cold water outlet Hot medium inlet and outlet Hot medium outlet and cold water inlet ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is Inversely proportional to specific heat All of these Inversely proportional to density of substance Directly proportional to the thermal conductivity Inversely proportional to specific heat All of these Inversely proportional to density of substance Directly proportional to the thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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