API 1169 Exam Question Which weld type is most commonly used for pipeline girth welds? A. Fillet Weld B. Groove Weld C. Plug Weld D. Spot Weld

Here's the answer to your API 1169 exam question:

Which weld type is most commonly used for pipeline girth welds?

• Explanation: A girth weld is a circumferential weld that joins two sections of pipe end-to-end. To achieve the necessary strength, integrity, and full penetration required for pipelines, the edges of the pipes are typically beveled to form a groove. This groove is then filled with weld metal, creating a groove weld.

  • Fillet welds are used for T-joints or lap joints.
  • Plug welds are used to join overlapping plates through a hole.
  • Spot welds are used for joining thin sheets at specific points. None of these are suitable for the end-to-end joining of pipe sections in a pipeline.

• Answer: The correct option is B. B. Groove Weld