AL Pipelines Practice Questions - Alabama Pipelines Contractor Examination Exam

When placing select backfill around a coated steel pipeline, which practice best protects the coating?

Using rock-free, compactible material in the pipe zone and placing it carefully around the haunches Dumping large blasted rock directly on top of the pipe from the bank Leaving voids under the pipe so water can drain freely along the invert Covering the pipe with scrap metal before backfilling

Correct Answer:

Using rock-free, compactible material in the pipe zone and placing it carefully around the haunches

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