Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Surface tension of water Nature of heating surface and distribution of bubbles Viscosity of water All of these Surface tension of water Nature of heating surface and distribution of bubbles Viscosity of water All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Wall or skin friction Both A and B Turbulent flow Form friction Wall or skin friction Both A and B Turbulent flow Form friction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 32 37 45 50 32 37 45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thickness of thermal boundary layer is more compared to that of hydrodynamic boundary layer, when the value of Prandtl number is > 1 1 > 5 < 1 > 1 1 > 5 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for cold viscous feed? Forward feed Parallel feed Mixed feed Backward feed Forward feed Parallel feed Mixed feed Backward feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Sherwood number Strouhal number Grashoff number Euler number Sherwood number Strouhal number Grashoff number Euler number ANSWER DOWNLOAD EXAMIANS APP
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