Heat and Mass Transfer The thermal diffusivities for gases are generally Less than those for liquids More than those for solids Dependent on the viscosity More than those for liquids Less than those for liquids More than those for solids Dependent on the viscosity More than those for liquids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is known as Conduction Radiation Convection None of these Conduction Radiation Convection None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of glass wool varies from sample to sample because of variation in All of these Porosity Density Composition All of these Porosity Density Composition ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 X = 0, a + p = 1 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 X = 0, a + p = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Remain same Increases May increase or decrease depending upon temperature Decreases Remain same Increases May increase or decrease depending upon temperature Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Stanton number Biot number Peclet number Grashoff number Stanton number Biot number Peclet number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
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