API 653 Documentation 3

Question 1

What information must an API 653 inspection report include regarding the tank's service history?

Accepted Answer

Product type, any service changes, and dates of service changes since the last inspection

Answer

Service history, including product type and any changes, is critical because different products cause different corrosion mechanisms and rates that affect fitness-for-service assessment.

Question 2

Under API 653, who is ultimately responsible for signing and certifying the inspection report?

Accepted Answer

A certified API 653 Inspector

Answer

API 653 requires that inspection reports be reviewed and certified by an API 653 Inspector, who bears responsibility for the accuracy and completeness of the findings.

Question 3

When documenting external corrosion found on a tank shell, what details should the inspection record include?

Accepted Answer

Location, extent, depth of corrosion, and remaining thickness at affected areas

Answer

Complete corrosion documentation enables accurate fitness-for-service calculations and supports determination of the next inspection interval based on corrosion rate trending.

Question 4

What does API 653 require when a tank is returned to service after an internal inspection?

Accepted Answer

Documentation that all deficiencies found have been addressed or accepted for continued service with an appropriate action plan

Answer

Before returning a tank to service after inspection, API 653 requires documented evidence that identified deficiencies have been repaired or formally accepted for continued service under a defined monitoring plan.

Question 5

In API 653, what is the role of the maximum fill height in tank documentation?

Accepted Answer

It sets a physical operational limit that must be recorded and enforced to avoid overstress of the tank shell

Answer

The maximum fill height is a critical operational limit derived from structural calculations and must be documented so operating personnel do not overstress the tank shell or foundation.

(API 653) API 653 Aboveground Storage Tank Inspector Certification Practice Test

(API 653) API 653 Aboveground Storage Tank Inspector Certification Practice Test

API 653 Documentation 3