Heat and Mass Transfer The value of Prandtl number for air is about 0.1 1.7 0.7 0.3 0.1 1.7 0.7 0.3 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in case of heat transfer by Radiation Conduction Conduction and convection Convection Radiation Conduction Conduction and convection Convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Regenerator type Cross flow type Parallel flow type Counter flow type Regenerator type Cross flow type Parallel flow type Counter flow type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Stanton number Biot number Nusselt number Peclet number Stanton number Biot number Nusselt number Peclet number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Two long parallel surfaces each of emissivity 0.7 are maintained at different temperatures and accordingly have radiation heat exchange between them. It is desired to reduce 75% of the radiant heat transfer by inserting thin parallel shields of emissivity 1 on both sides. The number of shields should be One Four Two Three One Four Two Three ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The radiation emitted by a black body is known as Full radiation Total radiation All of these Black radiation Full radiation Total radiation All of these Black radiation ANSWER DOWNLOAD EXAMIANS APP
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