Process Equipment and Plant Design
Pick out the wrong statement pertaining to shell and tube heat exchanger.

Tie rods are fixed at one end in the tube sheet by making blind holes and the minimum number of tie rods is 4 with at least 10 mm diameter
Bracket supports are used for horizontal shell, while saddle support is used for vertical shell
Baffles are supported independently of the tubes by tie rods and positioned by spacers
Clearance between shell & baffles and between tube & baffles should be minimum to avoid by-passing of the fluid, but it should be enough to permit the removal of tube bundle

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Process Equipment and Plant Design
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

Both the functions of condensation & sub cooling are carried out in a single unit
Sub cooling of condensate is desired
Only the function of condensation is to be carried out
Hydrostatic head is required for refluxing the condensate

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