Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Backward feed High pressure Vacuum None of these Backward feed High pressure Vacuum None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is 2 10 100 0.5 2 10 100 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Nusselt number Kutateladze number Lewis relationship Froude number Nusselt number Kutateladze number Lewis relationship Froude number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Analogy between mass and heat transfer is not applicable in case of Both B and C Same velocity profile or equal eddy diffusivities Viscous heating or chemical reaction Thermal or pressure mass diffusion Both B and C Same velocity profile or equal eddy diffusivities Viscous heating or chemical reaction Thermal or pressure mass diffusion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Harmonic mean temperature difference is given by 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect, the pressure build up will be highest at the outlet of the last effect least at the outlet of the last effect least at the inlet of the first effect highest at the inlet of the last effect highest at the outlet of the last effect least at the outlet of the last effect least at the inlet of the first effect highest at the inlet of the last effect ANSWER DOWNLOAD EXAMIANS APP
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