Business Excellence through Quality, QMS & TQM

A: Governing principle: verification moves from electrical integrity to functional response before exposure to live process. Here, dry loop checking confirms wiring, scaling, and direction without adding process risk, then SCADA validation closes the loop. Applying pressure earlier breaks PTW sequencing and hides wiring polarity errors. Option B traps engineers who trust process response first; it feels real-world but skips the control-system failure modes that cause start-up delays.

A: Governing principle: dominant corrosion is set by chemistry plus transient operating states, not just normal operation. High chlorides combined with oxygen during shutdown promote localized attack; that risk controls coating, material, and inspection choices more than steady-state sulfide levels. Option C catches engineers who know chlorides are bad for stainless but overapply SCC risk without the tensile stress and temperature drivers present here.

A: Governing principle: separator liquid level follows liquid mass balance, not gas throughput intent. Lower gas velocity improves disengagement but doesn't remove liquid; without matching liquid outflow, level rises. Adjusting liquid handling keeps the vessel within design residence time. Option B traps those who recall density effects yet misapply them, adding pressure stress without fixing the liquid imbalance.

A: Governing principle: defects are cheapest to remove before hardware and schedule constraints exist. Full FAT proves logic and protective actions early; SAT then confirms integration and real-world signals. Reversing this inflates offshore rework under PTW pressure. Option D catches engineers who trust vendor packages, forgetting that integration logic failures sit outside equipment guarantees.