RMGA Pipeline Operations and Maintenance

Question 1

What is the primary purpose of cathodic protection on buried natural gas pipelines?

Accepted Answer

To prevent corrosion of the metal pipe

Answer

Cathodic protection prevents electrochemical corrosion by making the pipeline the cathode of an electrochemical cell.

Question 2

Which federal regulation governs the safety of natural gas pipelines in the United States?

Accepted Answer

49 CFR Part 192

Answer

49 CFR Part 192 establishes minimum federal safety standards for the transportation of natural gas by pipeline.

Question 3

What does the term 'MAOP' stand for in pipeline operations?

Accepted Answer

Maximum Allowable Operating Pressure

Answer

MAOP, Maximum Allowable Operating Pressure, is the highest pressure at which a pipeline segment may be operated.

Question 4

How often must operators perform patrols on transmission pipelines in Class 1 locations under 49 CFR Part 192?

Accepted Answer

At least once each calendar year

Answer

For Class 1 locations, 49 CFR Part 192 requires transmission pipeline patrols at least once each calendar year.

Question 5

What is a 'pigging' operation in the context of natural gas pipelines?

Accepted Answer

Running a device through the pipeline for cleaning or inspection

Answer

Pigging involves sending a device called a pig through the pipeline interior to perform cleaning, inspection, or gauging.

RMGA - Rocky Mountain Gas Association Practice Test