Practice Test Geeks(API 510) API 510 Inspector Certification Practice Test
← All API 510 Flashcard Decks

Repair and Alteration Flashcards

7 cards from real API 510 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Repair and Alteration flashcards as text

  1. When welding a repair patch onto a pressure vessel, the minimum preheat temperature is determined primarily by:

    Answer: The base metal P-number and thickness

    Preheat requirements per API 510 and ASME Section IX are governed by the base metal P-number and thickness.

  2. A vessel owner wants to add a new nozzle to an existing pressure vessel. Under API 510, this would be classified as:

    Answer: An alteration

    Adding a nozzle changes the vessel's design configuration and is classified as an alteration under API 510.

  3. After completing a weld repair on a pressure vessel, post-weld heat treatment (PWHT) is required when:

    Answer: The original code of construction required PWHT or the repair weld exceeds thickness thresholds

    PWHT is required after repairs when the original code of construction mandated it or when the repair weld thickness exceeds code-specified thresholds.

  4. A repair organization completing work on a pressure vessel in the field must have which of the following?

    Answer: An R-stamp from the National Board of Boiler and Pressure Vessel Inspectors

    The R-stamp from the National Board certifies that the repair organization has a quality control system for pressure vessel repairs.

  5. Which document must be prepared by the repair organization and filed with the National Board after completing an alteration to a pressure vessel?

    Answer: Form R-1

    Form R-1 (Report of Repair or Alteration) must be prepared and filed with the National Board after alterations to pressure vessels.

  6. Under API 510, who has the authority to approve a repair or alteration on a pressure vessel?

    Answer: The authorized pressure vessel inspector

    The authorized pressure vessel inspector must review and approve repairs and alterations before work begins and must inspect the work.

  7. A temporary repair using a fillet-welded box patch on a pressure vessel shell is:

    Answer: Permitted with owner/user and inspector approval as a temporary measure

    API 510 allows temporary repairs such as fillet-welded box patches with documented owner/user and inspector approval until a permanent repair is made.