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Q: How do you design supports for static equipment? A: Determine load paths (dead, thermal, seismic), calculate support reactions (including piping forces), select support type (saddles, lugs, skirts, skirts with stiffeners). For saddles, ensure shell bearing stress is within allowable, add liners/pads for corrosion or wear, and provide appropriate anchor/isolation where needed.
Unlike primary stress (caused by internal/external pressure), secondary stress is self-limiting and caused by constraints or geometry changes (e.g., thermal expansion). It is crucial for fatigue analysis.
A document specifying the materials, pressure ratings, wall thicknesses, and corrosion allowances for a specific process service.
A standardized parameter (e.g., Sch 40, Sch 80) defined by ASME B36.10 that dictates the specific wall thickness of a pipe for a given nominal size. Section 5: Common Damage Mechanisms static equipment interview questions updated
Understanding how equipment degrades over time is vital for asset integrity and maintenance roles. 15. What is Hydrogen Induced Cracking (HIC)? HIC occurs in carbon steels exposed to wet H2Scap H sub 2 cap S
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Be ready to list these and briefly describe their function: Q: How do you design supports for static equipment
One tube sheet is free to move, allowing for high differential thermal expansion.
: What are the various "loadings" defined under UG-22 that must be considered in vessel design? (e.g., internal/external pressure, weight of the vessel, wind, and seismic loads) Nozzle Design
1. What are the primary differences between ASME Section VIII Division 1, Division 2, and Division 3? A standardized parameter (e
Rules for the construction of pressure vessels (Design-by-Formula approach).
Static equipment is subject to various safety regulations and standards. Here are some questions to assess a candidate's understanding of safety protocols and regulatory requirements:
Heat exchangers are a frequent "deep-dive" topic in technical rounds, especially regarding thermal expansion and fouling. The Floating Head