In preparing to weld pipe for an oil pipeline, the described sequence ends with clamps installed after the pipe ends are aligned. This procedure is:

In preparing to weld pipe for an oil pipeline, the described sequence ends with clamps installed after the pipe ends are aligned. This procedure is:

• A. Correct
• B. Incorrect
• C. Needs additional steps
• D. Unsafe

Answer: (A)

Proper fit-up is essential in pipe welding, especially for oil pipelines. Once the ends are aligned, installing clamps to hold that alignment is the correct step because it preserves the exact joint geometry during welding. The clamps keep the coaxial alignment and the root gap consistent, preventing movement from heat, weld shrinkage, or gravity as you tack and then complete the weld. By clamping after alignment, you lock in the prepared fit and reduce the risk of misalignment or gaps that could compromise weld integrity and pipeline service. This sequence—align, then clamp to secure—is a standard, safe practice that supports a high-quality, defect-free weld.

Proper fit-up is essential in pipe welding, especially for oil pipelines. Once the ends are aligned, installing clamps to hold that alignment is the correct step because it preserves the exact joint geometry during welding. The clamps keep the coaxial alignment and the root gap consistent, preventing movement from heat, weld shrinkage, or gravity as you tack and then complete the weld. By clamping after alignment, you lock in the prepared fit and reduce the risk of misalignment or gaps that could compromise weld integrity and pipeline service. This sequence—align, then clamp to secure—is a standard, safe practice that supports a high-quality, defect-free weld.