Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Air Dowtherm Molten sodium Water Air Dowtherm Molten sodium Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Concentrate heat sensitive materials Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Concentrate heat sensitive materials Achieve very high concentration of the final product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Corrosiveness of steam condensate is due to the presence of Neither A nor B Both A & B Dissolved O₂ CO₂ Neither A nor B Both A & B Dissolved O₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal boundary layer at NPr > 1 Is thicker than hydrodynamic boundary layer Disappears Is thinner than hydrodynamic boundary layer And the hydrodynamic boundary layer are identical Is thicker than hydrodynamic boundary layer Disappears Is thinner than hydrodynamic boundary layer And the hydrodynamic boundary layer are identical ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is best heated with steam in a heat exchanger of plate type double pipe type with fin on air side double pipe type with fin on steam side shell and tube type plate type double pipe type with fin on air side double pipe type with fin on steam side shell and tube type ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for None of these Lower operating costs Steam economy Investment economy None of these Lower operating costs Steam economy Investment economy ANSWER DOWNLOAD EXAMIANS APP
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