Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Dynamic viscosity Density Thermal diffusivity Thermal conductivity Dynamic viscosity Density Thermal diffusivity Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit Time Thickness Temperature Area Time Thickness Temperature Area ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be black when (Where a = absorptivity, p = reflectivity, X = transmissivity.) P = 0, x = 0 and a = 1 P= 1, T = 0 and a = 0 X = 0, a + p = 0 P = 0, x = 1 and a = 0 P = 0, x = 0 and a = 1 P= 1, T = 0 and a = 0 X = 0, a + p = 0 P = 0, x = 1 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer All radiations in a black body are Reflected Refracted Transmitted Absorbed Reflected Refracted Transmitted Absorbed ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body Move actually Affect the intervening medium Does not affect the intervening medium Do not move actually Move actually Affect the intervening medium Does not affect the intervening medium Do not move actually ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The product of Reynolds number and Prandtl number is known as Peclet number Stanton number Biot number Grashoff number Peclet number Stanton number Biot number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
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