Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Peclet number Biot number Grashoff number Stanton number Peclet number Biot number Grashoff number Stanton number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fouling factor is used In case of Newtonian fluids None of these When a liquid exchanges heat with a gas In heat exchanger design as a safety factor In case of Newtonian fluids None of these When a liquid exchanges heat with a gas In heat exchanger design as a safety factor ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan Boltzmann law, ideal radiators emit radiant energy at a rate proportional to Fourth power of temperature Absolute temperature Fourth power of absolute temperature Square of temperature Fourth power of temperature Absolute temperature Fourth power of absolute temperature Square of temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following would lead to a reduction in thermal resistance? All of these In convection, stirring of the fluid and cleaning the heating surface. In conduction, reduction in the thickness of the material and an increase in thermal conductivity. In radiation, increasing the temperature and reducing the emissivity. All of these In convection, stirring of the fluid and cleaning the heating surface. In conduction, reduction in the thickness of the material and an increase in thermal conductivity. In radiation, increasing the temperature and reducing the emissivity. ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Moisture would find its way into insulation by vapour pressure unless it is prevented by High thickness of insulation Less thermal conductivity insulator High vapour pressure A vapour seal High thickness of insulation Less thermal conductivity insulator High vapour pressure A vapour seal ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when X = 0, a + p = 1 P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 X = 0, a + p = 1 P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
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