Static Equipment Interview Questions _verified_ -

| Feature | Fixed Tube Sheet (FTS) | U-Tube | | :--- | :--- | :--- | | Tube Bundle | Straight tubes, fixed to shell at both ends. | Bent tubes, free to float inside the shell. | | Removal | Not removable; shell must be cut open for access. | Removable tube bundle for cleaning. | | Thermal Expansion | Requires expansion bellows on the shell (weak point). | Handles high thermal differentials (U-bends act as expansion loops). | | Cleaning | Difficult (mechanical cleaning nearly impossible). | Relatively easy (pull bundle). | | Tube Replacement | Impossible. | Impossible (only plugging). |

Static equipment refers to machinery with no moving parts. Its primary functions are to hold, store, separate, or process fluids (liquids, gases, or multiphase mixtures) under pressure and temperature. Key examples include: Static Equipment Interview Questions

Say you prefer U-tube for large temperature differences, but fixed tube sheet for high pressure shell side. | Feature | Fixed Tube Sheet (FTS) |