Heat and Mass Transfer Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called Thermal coefficient Thermal resistance Temperature gradient Thermal conductivity Thermal coefficient Thermal resistance Temperature gradient Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in Room air conditioners Water coolers All of these Domestic refrigerators Room air conditioners Water coolers All of these Domestic refrigerators ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Biot number Stanton number Prandtl number Grashoff number Biot number Stanton number Prandtl number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Increases Remain same May increase or decrease depending upon temperature Decreases Increases Remain same May increase or decrease depending upon temperature Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The insulation ability of an insulator with the presence of moisture would Decrease Increase Remain unaffected May increase/decrease depending on temperature and thickness of insulation Decrease Increase Remain unaffected May increase/decrease depending on temperature and thickness of insulation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total emissivity of polished silver compared to black body is Same More or less same Very much lower Higher Same More or less same Very much lower Higher ANSWER DOWNLOAD EXAMIANS APP
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