AL Pipelines Practice Questions - Alabama Pipelines Contractor Examination Exam

What is the function of a mainline block valve on a pipeline?

To isolate a segment of the line so flow can be shut off for maintenance or after a release To increase the operating pressure of the downstream segment To remove water from the product stream To measure the volume of product delivered

Correct Answer:

To isolate a segment of the line so flow can be shut off for maintenance or after a release

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