Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Viscosity of water Nature of heating surface and distribution of bubbles All of these Surface tension of water Viscosity of water Nature of heating surface and distribution of bubbles All of these Surface tension of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a conducting solid material depends upon its porosity None of the listed here temperature both temperature & porosity porosity None of the listed here temperature both temperature & porosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. film pool transition none of the listed here film pool transition none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number for most of dry gases is about 70 0.001 0.72 150 70 0.001 0.72 150 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, Both B & C Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both B & C Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Rate of heat transfer Both A and B Neither A nor B Heat balance consideration Rate of heat transfer Both A and B Neither A nor B Heat balance consideration ANSWER DOWNLOAD EXAMIANS APP
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