Heat and Mass Transfer Planck’s law holds good for all coloured bodies black bodies polished bodies All of these all coloured bodies black bodies polished bodies All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal diffusivity is m²/hr °C kcal/m. hr °C m²/hr kcal/m² hr m²/hr °C kcal/m. hr °C m²/hr kcal/m² hr ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Red hot body Grey body Brilliant white polished body Black body Red hot body Grey body Brilliant white polished body Black body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in Electric heater Refrigerator condenser coils Boiler Steam condenser Electric heater Refrigerator condenser coils Boiler Steam condenser ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of overall coefficient of heat transfer is kcal/m hr °C kcal/m² kcal/m² hr °C kcal/hr °C kcal/m hr °C kcal/m² kcal/m² hr °C kcal/hr °C 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. A. (dx/dT) k. A. (dT/dx) k. (dx/dT) k. (dT/dx) k. A. (dx/dT) k. A. (dT/dx) k. (dx/dT) k. (dT/dx) ANSWER DOWNLOAD EXAMIANS APP
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