Engineering practice, project work and technical reporting
This domain tests professional practice: planning welding work, controlling change, estimating cost and reporting with traceable evidence. The exam favours structured reasoning over general project language.
Project flow and change control
A welding project passes through specification review, WPS/PQR development, procedure and personnel qualification, production, inspection and documentation handover. Any change in material, thickness, joint design, consumable or essential variable triggers a review of procedure validity. Change control records who approved what, when and on what basis.
Worked example: cost per metre
Labour rate is €45/h, arc time per metre 0.12 h and operating factor 0.45. Labour cost per metre = 45 × 0.12 / 0.45 = €12.00. Consumables are 0.9 kg/m at €4/kg = €3.60. Direct cost = €15.60/m before overhead and NDT. The operating factor is the usual omission; dividing by 0.45, not 1.0, is what makes the estimate realistic.
Technical reporting
A defensible report states objective, scope, references, method, results, discussion and conclusion. Results include measured values, standards and acceptance criteria. Conclusions must be traceable to data; where uncertainty exists, state its source and effect. Photographs and raw records belong in appendices with document control.
Root cause and corrective action
Non-conformities are analysed with structured tools such as 5-Why or Ishikawa, then corrective action is verified for effectiveness. Reporting a defect without cause analysis is incomplete.
Traps
Omitting the operating factor; quoting conclusions without acceptance criteria; failing to record procedure revisions; treating a corrective action as closed without verification.