Heat Transfer Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer. Stantan Biot Reynolds Grashoff Stantan Biot Reynolds Grashoff ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger? Corrosiveness Viscosity Fouling characteristic None of these Corrosiveness Viscosity Fouling characteristic None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l08 3 x l012 3 x l05 3 x l010 3 x l08 3 x l012 3 x l05 3 x l010 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Increases Decreases May increase or decrease; depends on the liquid Remains unchanged Increases Decreases May increase or decrease; depends on the liquid Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For an ideal black body Emissivity = 0 Absorptivity = 1 Reflectivity = 1 Transmissivity = 1 Emissivity = 0 Absorptivity = 1 Reflectivity = 1 Transmissivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe ANSWER DOWNLOAD EXAMIANS APP
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