Heat and Mass Transfer The highest thermal diffusivity is of Concrete Lead Iron Wood Concrete Lead Iron Wood ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Peclet number Nusselt number Biot number Stanton number Peclet number Nusselt number Biot number Stanton number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Decreases May increase or decrease depending upon temperature Remain same Increases Decreases May increase or decrease depending upon temperature Remain same Increases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Density Dynamic viscosity Thermal diffusivity Thermal conductivity Density Dynamic viscosity Thermal diffusivity Thermal conductivity 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 0.16736111111111 0.084027777777778 0.043055555555556 0.042361111111111 0.16736111111111 0.084027777777778 0.043055555555556 0.042361111111111 ANSWER DOWNLOAD EXAMIANS APP
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