Q. What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers ?

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Q. Pick out the correct statement

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Q. Safety valves are provided in chemical equipments to guard against excessive

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Q. Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate ?

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Q. In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG.

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Q. Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

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Q. Pressure drop per tray in the atmospheric distillation column is about __________ psi.

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Q. Welded joint efficiency in the design of chemical process equipment is taken as

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Q. For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.

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Q. Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

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Q. A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

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Q. In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube ?

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Q. A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

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Q. The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter)

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Q. Baffle width is normally taken as __________ times the tank diameter.

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Q. 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

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Q. Which of the following packing materials provides for maximum mass transfer ?

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Q. Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.

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Q. Larger depth of liquid on the trays of a distillation column

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Q. Pick out the wrong statement.

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