Process Equipment and Plant Design In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter. 1.25-1.50 times 2.5 times Less than One-fourth of 1.25-1.50 times 2.5 times Less than One-fourth of ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around 3 and 5 100 and 250 250 and 600 25 and 60 3 and 5 100 and 250 250 and 600 25 and 60 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness. Half Four times Equal to Twice Half Four times Equal to Twice ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids. 28 16 19 38 28 16 19 38 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for fully open gate valves would be Much more than that for fully open globe valves Around 7 Much less (say 2% than that for fully open globe valves) Both B and C Much more than that for fully open globe valves Around 7 Much less (say 2% than that for fully open globe valves) Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An adequate clearance between the tray and the shell wall of a distillation column is provided to Avoid back-trapping Allow for thermal expansion and facilitate installation None of these Drain the liquid from the tray when the unit is not in operation Avoid back-trapping Allow for thermal expansion and facilitate installation None of these Drain the liquid from the tray when the unit is not in operation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS