Pick out the wrong statement pertaining to shell and tube heat exchanger.

• 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.
• Baffles are supported independently of the tubes by tie rods and positioned by spacers.
• 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.