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 A non-dimensional number generally associated with natural convection heat transfer is Weber number Prandtl number Nusselt number Grashoff number Weber number Prandtl number Nusselt number Grashoff number 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 Affect the intervening medium Does not affect the intervening medium Move actually Do not move actually Affect the intervening medium Does not affect the intervening medium Move actually Do not move actually ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of 3 270 9 81 3 270 9 81 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The emissivity for a black body is 0.75 0.5 1 0.75 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The thermal diffusivities for gases are generally Dependent on the viscosity Less than those for liquids More than those for liquids More than those for solids Dependent on the viscosity Less than those for liquids More than those for liquids More than those for solids ANSWER DOWNLOAD EXAMIANS APP
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