AL Pipelines Practice Questions - Alabama Pipelines Contractor Examination Exam

What is the main purpose of a ditch break or trench break (trench dam) in a pipeline trench on a slope?

To stop water from running along the trench and eroding bedding or creating voids under the pipe To increase the MAOP of the pipeline To eliminate the need for coating repairs To serve as a permanent cathodic-protection anode

Correct Answer:

To stop water from running along the trench and eroding bedding or creating voids under the pipe

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