Heat and Mass Transfer The insulation ability of an insulator with the presence of moisture would May increase/decrease depending on temperature and thickness of insulation Remain unaffected Decrease Increase May increase/decrease depending on temperature and thickness of insulation Remain unaffected Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat flows from one body to other when they have Different specific heat Different atomic structure Different temperatures Different heat contents Different specific heat Different atomic structure Different temperatures Different heat contents ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Moisture would find its way into insulation by vapour pressure unless it is prevented by Less thermal conductivity insulator High thickness of insulation A vapour seal High vapour pressure Less thermal conductivity insulator High thickness of insulation A vapour seal High vapour pressure ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as Planck's law Stefan's law Wien's law Kirchhoff's law Planck's law Stefan's law Wien's law Kirchhoff's law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to 1 =-1/3 =-2/3 -1 1 =-1/3 =-2/3 -1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The radiation emitted by a black body is known as Full radiation Black radiation All of these Total radiation Full radiation Black radiation All of these Total radiation ANSWER DOWNLOAD EXAMIANS APP
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