Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Higher Lower Same Depends upon the shape of body Higher Lower Same Depends upon the shape of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as U.Cmin U/A.Cmin Cmin/U U/Cmin U.Cmin U/A.Cmin Cmin/U U/Cmin ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Aluminium Copper Brass Steel Aluminium Copper Brass Steel ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The use of heat exchangers is made in Condensers and evaporators in refrigeration and air conditioning units Condensers and boilers in steam plants All of these Radiators in automobile Condensers and evaporators in refrigeration and air conditioning units Condensers and boilers in steam plants All of these Radiators in automobile ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as Radiation Forced convection Free convection Conduction Radiation Forced convection Free convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Density Thermal diffusivity Dynamic viscosity Thermal conductivity Density Thermal diffusivity Dynamic viscosity Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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