Process Equipment and Plant Design In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area) Sa = 1.5 Aa 1.2 Aa = 1.2 Sa Aa = Sa Aa = 1.5 Sa Sa = 1.5 Aa 1.2 Aa = 1.2 Sa Aa = Sa Aa = 1.5 Sa ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The main purpose of providing stepping on the trays is to Improve the flow condition Increase the residence time Decrease the pressure drop Facilitate handling of large flow rate of liquid Improve the flow condition Increase the residence time Decrease the pressure drop Facilitate handling of large flow rate of liquid ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube. 3.5 1.25 1.75 2.5 3.5 1.25 1.75 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Needle valves are generally not used for High pressure throttling service Very accurate flow control Very large diameter pipes Smaller sizes of pipe High pressure throttling service Very accurate flow control Very large diameter pipes Smaller sizes of pipe ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.) L/Z.H.ρ Z.H/L.ρ H.ρ/L Z.H.ρ/L L/Z.H.ρ Z.H/L.ρ H.ρ/L Z.H.ρ/L ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT Increases very rapidly Increases linearly Decreases very rapidly Remains constant Increases very rapidly Increases linearly Decreases very rapidly Remains constant ANSWER DOWNLOAD EXAMIANS APP
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