Static Equipment Interview Questions 'link' Access
Seamless pipe is extruded and has no longitudinal seam. It is generally stronger and preferred for high-pressure and high-temperature applications. Welded pipe (ERW or LSAW) is cheaper and available in larger sizes, but the weld seam is a potential point of failure. You would use welded pipe for low-pressure water lines or structural applications, and seamless for critical process lines.
For operational roles, the focus shifts to field-level checks and safety: static equipment interview questions
“Extra thickness for rust.”