Heat and Mass Transfer Planck’s law holds good for polished bodies black bodies All of these all coloured bodies polished bodies black bodies All of these all coloured bodies ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is Higher Depends on the area of heat exchanger Lower Same Higher Depends on the area of heat exchanger Lower Same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Density Thermal conductivity Thermal diffusivity Dynamic viscosity Density Thermal conductivity Thermal diffusivity Dynamic viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body Affect the intervening medium Move actually Does not affect the intervening medium Do not move actually Affect the intervening medium Move actually Does not affect the intervening medium Do not move actually 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 2 k₁ k₂/ (k₁ + k₂) k₁ k₂ (k₁ + k₂) (k₁ + k₂)/ k₁ k₂ 2 k₁ k₂/ (k₁ + k₂) k₁ k₂ (k₁ + k₂) (k₁ + k₂)/ k₁ k₂ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer, Nusselt number is function of Grashoff number, Prandtl number and Reynold number Prandtl number and Reynold number Grashoff number and Reynold number Grashoff number and Prandtl number Grashoff number, Prandtl number and Reynold number Prandtl number and Reynold number Grashoff number and Reynold number Grashoff number and Prandtl number ANSWER DOWNLOAD EXAMIANS APP
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