Q. Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

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Q. The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

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Q. 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

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Q. For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

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Q. The ratio of linear stress to linear strain is termed as the

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Q. __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

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Q. Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

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Q. Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger ?

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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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