Heat and Mass Transfer Thermal diffusivity is Function of temperature A dimensionless parameter Used as mathematical model A physical property of the material Function of temperature A dimensionless parameter Used as mathematical model A physical property of the material 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, Prandtl number and Reynold number Grashoff number and Reynold number Grashoff number and Prandtl number Prandtl number and Reynold number Grashoff number, Prandtl number and Reynold number Grashoff number and Reynold number Grashoff number and Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Absorptivity of a body will be equal to its emissivity At critical temperature At all temperatures When system is under thermal equilibrium At one particular temperature At critical temperature At all temperatures When system is under thermal equilibrium At one particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan's law, the total radiation from a black body per second per unit area is proportional to Absolute temperature T5 T T2 Absolute temperature T5 T T2 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m²). The critical thickness of insulation will be 40 mm 800 mm 160 mm 25 mm 40 mm 800 mm 160 mm 25 mm ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity is a Function of temperature Physical property of a substance All of these Dimensionless parameter Function of temperature Physical property of a substance All of these Dimensionless parameter ANSWER DOWNLOAD EXAMIANS APP
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