3.4u Day 1 Homework Flashcards

1
Q

A vertical steel pipe carrying crude oil away from a production platform is called?

A

An Export Riser

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2
Q

A Gas bubble trapped in the molten metal can cause what type of defect in a steel plate?

A

A Lamination

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3
Q

Which of the following may cause metal fatigue?

A

Cyclic loading and unloading

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4
Q

A small conical depression in a concrete surface is known as?

A

A Popout

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5
Q

Since 2005 how often must a ‘Safety Case’ be reviewed?

A

At Least every 5 years

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6
Q

Who is responsible for ensuring sufficient inspection is carried out on an offshore structure under UK legislation?

A

Duty Holder

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7
Q

What aspects of QA are encompassed into an Activity Monitoring System?

A

Full certification for component locations through as-built drawings
Full material certification
Non-destructive testing (NDT) and inspection certification
Personnel qualifications

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8
Q

What prevents the steel reinforcement in a concrete structure from corroding?

A

Passivation - pH12.5

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9
Q

List 6 major items that are inspected regularly on offshore FPS’s and FPSO’s?

A

Moorings and Risers
Mooring Chains
Visual Hull Surveys (ROV)
Turret Inspection
Mid Water-arch
Lazy S configuration

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10
Q

What are the 6 categories of steel structure deterioration?

A

Gross structural damage.
Corrosion and erosion.
Fouling defects.
Coating defects
Scour
Metal and weld defects.

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11
Q

List the 8 Category ‘A’ defects appearing in the UK Government’s Offshore Technology Report

A

The category A (defects) are:
Cracks.
Impact Damage.
Popouts.
Delamination.
Variables Cover.
Exposed Reinforcement.
Tearing.
Poor Repairs.

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