Heat and Mass Transfer Thermal conductivity of water at 20°C is of the order of 0.23 0.51 0.1 0.42 0.23 0.51 0.1 0.42 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal conductivity in M.K.S. units is K cal/kg m² °C K calm/hr °C K cal/hr m² °C K cal m/hr m² °C K cal/kg m² °C K calm/hr °C K cal/hr m² °C K cal m/hr m² °C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air with rise in temperature Increases May increase or decrease depending on temperature Decreases Remain constant Increases May increase or decrease depending on temperature Decreases Remain constant 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) k. (dx/dT) k. A. (dT/dx) k. A. (dx/dT) k. (dT/dx) k. (dx/dT) k. A. (dT/dx) k. A. (dx/dT) k. (dT/dx) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer by radiation mainly depends upon Kind and extent of its surface Nature of the body Its temperature All of these Kind and extent of its surface Nature of the body Its temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of Stefan Boltzmann constant is watt/cm2 °K⁴ watt/cm3 °K watt2/cm °K⁴ watt/cm4 °K watt/cm2 °K⁴ watt/cm3 °K watt2/cm °K⁴ watt/cm4 °K ANSWER DOWNLOAD EXAMIANS APP
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