Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Long tube vertical evaporator Agitated film evaporator None of these Open pan evaporator Long tube vertical evaporator Agitated film evaporator None of these Open pan evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch None of these Gives a lower shell side pressure drop Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter None of these Gives a lower shell side pressure drop Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface) 1/U₁ - 1/U₂ U₁ - U₂ U₂ - U₁ 1/U₂ - 1/U₁ 1/U₁ - 1/U₂ U₁ - U₂ U₂ - U₁ 1/U₂ - 1/U₁ 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 45 50 32 37 45 50 32 37 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr-1 NPr NPr1/3 NPr-1/3 NPr-1 NPr NPr1/3 NPr-1/3 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used In high range of temperature differences Because of its low cost To prevent corrosion of the tube bundles In low range of temperature differences In high range of temperature differences Because of its low cost To prevent corrosion of the tube bundles In low range of temperature differences ANSWER DOWNLOAD EXAMIANS APP
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