API 510 Repair, Alteration & Rerating Procedures 2

Question 1

According to API 510, who is responsible for ensuring that repair work on a pressure vessel meets the code requirements?

Accepted Answer

The pressure vessel owner/operator

Answer

The owner/operator bears final responsibility for ensuring that all repair work complies with applicable code requirements.

Question 2

When a fillet weld repair is made to a pressure vessel shell, the minimum preheat temperature is generally determined by:

Accepted Answer

The applicable welding code and material P-number

Answer

Preheat requirements are governed by the applicable welding code (such as ASME Section IX) based on the base metal's P-number and thickness.

Question 3

Under API 510, a 'major repair' to a pressure vessel typically requires:

Accepted Answer

Prior approval and an authorized inspection before welding begins

Answer

Major repairs require prior approval from the inspector and often the jurisdiction, with the authorized inspector involved before and during welding.

Question 4

A pressure vessel is to be rerated to a higher MAWP. Which condition MUST be satisfied?

Accepted Answer

The vessel must be suitable for the new conditions based on current inspection data and calculations

Answer

Rerating to higher pressure requires engineering calculations and current inspection data confirming the vessel's fitness for the new service conditions.

Question 5

API 510 requires that alteration work on a pressure vessel be performed using which edition of the construction code?

Accepted Answer

The latest edition of the applicable code or the original edition

Answer

Alterations may be performed to the original code of construction or the latest applicable edition, per owner/operator and inspector agreement.

(API 510) API 510 Inspector Certification Practice Test

(API 510) API 510 Inspector Certification Practice Test

API 510 Repair, Alteration & Rerating Procedures 2