Q. Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

View solution

Q. Column support for the roof of cylindrical storage tank must be provided for

View solution

Q. For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?

View solution

Q. The minimum tray spacing in distillation column of diameter less than 3 ft is normally __________ inches.

View solution

Q. Oxygen carrying pipelines in chemical industries are coloured with __________ colour.

View solution

Q. Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

View solution

Q. Pick out the wrong statement about the design of seive plate column and the bubble cap column.

View solution

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

View solution

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

View solution

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

View solution

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.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Pick out the correct statement

View solution

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

View solution

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

View solution

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

View solution