Maintenance & Turnaround Planning Flashcards
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Read the first 7 Maintenance & Turnaround Planning flashcards as text
Which document establishes the authorized scope of work for a piping system turnaround before execution begins?
Answer: Scope freeze document
The scope freeze document formally locks the approved scope of work to prevent unauthorized additions that drive cost and schedule overruns.
What is the primary purpose of conducting a pre-turnaround walk-down of piping systems?
Answer: To identify additional work items and verify scope accuracy
Pre-turnaround walk-downs verify planned scope, identify hidden deficiencies, and reduce surprises during execution.
A critical path activity in a turnaround schedule is best described as one that:
Answer: Has zero float and directly controls overall completion date
Critical path activities have zero float, meaning any delay directly extends the total turnaround duration.
Which inspection method is most appropriate for detecting internal corrosion in an insulated piping system without removing insulation?
Answer: Radiographic testing (RT) profile method
Profile radiography can image pipe wall thickness through insulation, detecting internal metal loss without insulation removal.
In turnaround planning, 'scaffolding pre-installation' is typically performed to:
Answer: Reduce critical path duration by completing non-critical work before shutdown
Pre-installing scaffolding before shutdown eliminates this time from the critical path, compressing overall turnaround duration.
What does the term 'backlog management' refer to in the context of piping maintenance planning?
Answer: Systematic tracking and prioritization of deferred maintenance work items
Backlog management involves cataloging, prioritizing, and scheduling deferred maintenance items to optimize resource allocation.
When planning piping repairs during a turnaround, which factor most directly determines whether a hot tap or a shutdown repair is required?
Answer: Whether the system can be safely isolated and depressurized
If the system can be safely isolated, a conventional shutdown repair is preferred; hot tapping is used when safe isolation is impractical.