Heat and Mass Transfer The highest thermal diffusivity is of Concrete Lead Wood Iron Concrete Lead Wood Iron ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Biot number Peclet number Stanton number Nusselt number Biot number Peclet number Stanton number Nusselt number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Remain same May increase or decrease depending upon temperature Increases Decreases Remain same May increase or decrease depending upon temperature Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Thermal conductivity Density Dynamic viscosity Thermal diffusivity Thermal conductivity Density Dynamic viscosity Thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Two balls of same material and finish have their diameters in the ratio of 2: 1 and both are heated to same temperature and allowed to cool by radiation. Rate of cooling by big ball as compared to smaller one will be in the ratio of 0.084027777777778 0.16736111111111 0.042361111111111 0.043055555555556 0.084027777777778 0.16736111111111 0.042361111111111 0.043055555555556 ANSWER DOWNLOAD EXAMIANS APP
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