Key points: load combinations, girth welds vs. lug attachments, stress concentration, local reinforcement, grout and foundation considerations. Follow-up: How do you check nozzle loads transferred to a vessel from connected piping?
You must account for internal/external pressure, dead weight (vessel + contents), wind/seismic loads, and nozzle loads.
It allows trapped gases to escape while welding the pad to the shell, preventing porosity or weld cracking.
Used for low pressures, flat profile saves space, requires thickest walls due to high localized stresses in the knuckle radius. static equipment interview questions updated
) and the critical design factors for vertical cylindrical welded tanks. API 620 vs. 650
What is the target for this role (e.g., junior engineer, lead engineer, or field inspector)?
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. Key points: load combinations, girth welds vs
The vessel structure cannot support the weight of the water.
: Which clause in ASME Section VIII covers nozzle reinforcement calculations? Flange Design (Appendix 2) : Describe the procedure for designing a Rectangular Flange
Flanges are categorized into pressure classes based on their pressure-temperature ratings. Standard classes include . A higher class rating indicates a thicker flange capable of withstanding higher pressures at elevated temperatures. You must account for internal/external pressure, dead weight
In 2025, most failures are not due to bad original design, but due to . Expect deep dives here.
Spot radiographed longitudinal and circumferential seams. RT-4: Visual inspection only (no radiography).
A document specifying the materials, pressure ratings, wall thicknesses, and corrosion allowances for a specific process service.
