Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & polished Black & polished White & rough Black & rough White & polished Black & polished White & rough Black & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection only Free and forced convection Forced convection and conduction Conduction only Forced convection only Free and forced convection Forced convection and conduction Conduction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Thickness Temperature difference Heat transfer area Thermal conductivity Thickness Temperature difference Heat transfer area Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids Increases Decreases First increases upto a certain temperature and then becomes constant Remains same Increases Decreases First increases upto a certain temperature and then becomes constant Remains same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Neither A and B Isothermal Both A and B Non-isothermal Neither A and B Isothermal Both A and B Non-isothermal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low Grashoff number Prandtl number thermal conductivity viscosity Grashoff number Prandtl number thermal conductivity viscosity ANSWER DOWNLOAD EXAMIANS APP
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