Process Equipment and Plant Design Questions

• __________ of water makes it a widely used coolant in heat exchangers.
• Pick out the wrong statement.
• Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.
• In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.
• Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?
• In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube?
• What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?
• Liquid gradient over the tray results due to the
• The force due to wind load acting on a tall vessel depends upon its
• Pick out the wrong statement.
• The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than
• A cylinderical pressure vessel of volume 6 πm3 has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm2 and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to
• Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.
• Lug support is meant for supporting __________ vessels.
• Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid
• Pick out the wrong statement.
• Which of the following packing materials provides for maximum mass transfer?
• Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as
• The ratio of linear stress to linear strain is termed as the
• Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.