Heat Transfer (NRe.NPr)(D/L) is called the __________ number Stanton Peclet None of these Graetz Stanton Peclet None of these Graetz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Graetz number is concerned with the absorption with chemical reaction heat transfer in laminar flow heat transfer in turbulent flow mass transfer between a gas and a liquid absorption with chemical reaction heat transfer in laminar flow heat transfer in turbulent flow mass transfer between a gas and a liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If Prandtl number is greater than the Schmidt number, then the thermal & concentration boundary layers are of equal thickness thermal boundary layer lies inside the concentration boundary layer none of the listed here concentration boundary layer lies inside the thermal boundary layer thermal & concentration boundary layers are of equal thickness thermal boundary layer lies inside the concentration boundary layer none of the listed here concentration boundary layer lies inside the thermal boundary layer ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 0.15 555 55.5 0.55 0.15 555 55.5 0.55 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Mass diffusivity x Momentum diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Thermal diffusivity x Mass diffusivity Mass diffusivity x Momentum diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Thermal diffusivity x Mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Grashoff number is defined as the ratio of the buoyancy to surface tension forces buoyancy to inertial forces buoyancy to viscous forces inertial to viscous forces. buoyancy to surface tension forces buoyancy to inertial forces buoyancy to viscous forces inertial to viscous forces. ANSWER DOWNLOAD EXAMIANS APP
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