Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Concentrate heat sensitive materials Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product Concentrate heat sensitive materials Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always ∞ 1 > 1 < 1 ∞ 1 > 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Planck's law Kirchhoffs law Stefan-Boltzman law Wien's law Planck's law Kirchhoffs law Stefan-Boltzman law Wien's law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is IR None of the listed here IR2 I2R IR None of the listed here IR2 I2R 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-1/3 NPr NPr-1 NPr1/3 NPr-1/3 NPr NPr-1 NPr1/3 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 inertial to viscous forces. buoyancy to viscous forces buoyancy to surface tension forces buoyancy to inertial forces inertial to viscous forces. buoyancy to viscous forces ANSWER DOWNLOAD EXAMIANS APP
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