GRE (Vessel / Piping/pipeline)

A: A: Pressure class aligns with MAWP and the service is intermittent, no temperature swing driving axial growth. That's clean. B: Metallic liner adds stiffness and cost for a duty that doesn't see pressure cycling that high. C: Gasketed joints invite leak paths under hydrocarbon exposure; axial movement isn't the driver here. D: Steel plus epoxy ignores the corrosion basis that triggered GRE in the first place.

A: A: Lower velocity cuts deposition rate and buys time; it's reversible. B: More speed raises shear and can delaminate the resin-rich liner. C: Full-pressure backflush risks joint separation; GRE hates pressure reversals. D: Paper fixes don't change field behavior; ΔP keeps climbing.

A: A: Resin matrix loses strength with heat; load redistributes and the line opens up. B: Thermal shock fracture fits ceramics, not GRE under fire exposure. C: Ring mains are charged; assuming dry service misses the hazard. D: Heat doesn't respect flange boundaries; pipe wall follows.

A: A: Joint type is a pressure boundary issue; mismatch drives install errors. B: Formatting annoys reviewers, not operators. C: Drains don't rely on arrows for safety. D: Cross-sheet references are normal in GA packs.