Heat and Mass Transfer The amount of radiation mainly depends on Nature of body Temperature of body Type of surface of body All of these Nature of body Temperature of body Type of surface of body All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer, Nusselt number is function of 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 Grashoff number, Prandtl number and Reynold number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is the case of heat transfer by radiation? Heat received by a person from fireplace Blast furnace Cooling of parts in furnace Heating of building Heat received by a person from fireplace Blast furnace Cooling of parts in furnace Heating of building ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The use of heat exchangers is made in Condensers and boilers in steam plants Radiators in automobile All of these Condensers and evaporators in refrigeration and air conditioning units Condensers and boilers in steam plants Radiators in automobile All of these Condensers and evaporators in refrigeration and air conditioning units ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Thermal diffusivity Dynamic viscosity Density Thermal conductivity Thermal diffusivity Dynamic viscosity Density Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer 40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is 0.75 0.4 0.45 0.55 0.75 0.4 0.45 0.55 ANSWER DOWNLOAD EXAMIANS APP
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