Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 450 650 750 250 450 650 750 250 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Maximum acceptable total liquid gradient over a tray is about __________ mm. 12.5 5.5 30.5 45.5 12.5 5.5 30.5 45.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 17.5 2.5 5 12.5 17.5 2.5 5 12.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be More than that for fluid flow Less than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Same as that for fluid flow More than that for fluid flow Less than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Same as that for fluid flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Diameter of the seive tray column is determined by the Height of the plate spacing Hole diameter of the seive tray Lower limit of vapour velocity Upper limit of the vapour velocity Height of the plate spacing Hole diameter of the seive tray Lower limit of vapour velocity Upper limit of the vapour velocity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is the best tube material from thermal conductivity point of view alone? Aluminium Copper Stainless steel Carbon steel Aluminium Copper Stainless steel Carbon steel ANSWER DOWNLOAD EXAMIANS APP
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