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