Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m² sec W/m °K J/m °K sec Option (B) and (C) above J/m² sec W/m °K J/m °K sec Option (B) and (C) above ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of wood depends on Density Moisture All of these Temperature Density Moisture All of these Temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body) (dT/dx) k. (dx/dT) k. k. (dT/dx) k. (dx/dT) (dT/dx) k. (dx/dT) k. k. (dT/dx) k. (dx/dT) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan Boltzmann law, the total radiation from a black body per second per unit area is directly proportional to the Fourth power of the absolute temperature Absolute temperature Square of the absolute temperature Cube of the absolute temperature Fourth power of the absolute temperature Absolute temperature Square of the absolute temperature Cube of the absolute temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Nusselt number Peclet number Stanton number Biot number Nusselt number Peclet number Stanton number Biot number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The emissive power of a body depends upon its Physical nature Wave length All of these Temperature Physical nature Wave length All of these Temperature ANSWER DOWNLOAD EXAMIANS APP
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