Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 2.5-3.0 10-12.5 5-7.5 15-20 2.5-3.0 10-12.5 5-7.5 15-20 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid) 4 P/A 4 A/P A/P √A 4 P/A 4 A/P A/P √A ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around 1.5 0.5 2.5 3.5 1.5 0.5 2.5 3.5 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 Same as that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) More than that for fluid flow Less than that for fluid flow Same as that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure Decreases Increases May increase or decrease depending upon the solubility of the gas in the liquid Remains same Decreases Increases May increase or decrease depending upon the solubility of the gas in the liquid Remains same ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In chemical process equipments, the conical bottom heads used, usually has an apex angle of 20° 80° 60° 40° 20° 80° 60° 40° ANSWER DOWNLOAD EXAMIANS APP
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