Heat Transfer Increasing the liquor level in the evaporator results in the decreased effect of hydrostatic head increased true temperature drop increase in liquor film co-efficient decreased capacity decreased effect of hydrostatic head increased true temperature drop increase in liquor film co-efficient decreased capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Harmonic mean temperature difference is given by √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 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) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 0.5 1.5 1 80 0.5 1.5 1 80 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Black paint Grey paint Yellow paint White paint Black paint Grey paint Yellow paint White paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Temperature of the fin end Surrounding temperature Constant temperature equal to that of the base Average temperature of the fin Temperature of the fin end Surrounding temperature Constant temperature equal to that of the base Average temperature of the fin ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure ANSWER DOWNLOAD EXAMIANS APP
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