Pigging in fuel and ballast piping is used to push a pig device through pipes to clean and inspect for blockages or to separate product batches.

Pigging in fuel and ballast piping is used to push a pig device through pipes to clean and inspect for blockages or to separate product batches.

• A. Pushing a pig device through pipes to clean and inspect for blockages or to separate product batches
• B. Injecting air into pipes to increase pressure
• C. Measuring pipe thickness with a pig gauge
• D. Removing debris by scraping with a pig

Answer: (A)

Pigging uses a pig device that travels through the pipe, propelled by the product flow or by an auxiliary push, to perform cleaning and inspection tasks and to separate different product batches. As the pig moves, it scours the interior, pushing debris ahead and enabling inline inspection tools to gather data on wall condition, deposits, and blockages. The ability to create physical separation between products in the same line is crucial for preventing cross-contamination, which is exactly what batch separation accomplishes. This combination—cleaning, inspection with data collection, and batch separation—defines the practice of pigging in fuel and ballast piping. Other options describe related activities (like merely scraping or measuring with a special tool) but don’t capture the full, primary purpose of pigging.

Pigging uses a pig device that travels through the pipe, propelled by the product flow or by an auxiliary push, to perform cleaning and inspection tasks and to separate different product batches. As the pig moves, it scours the interior, pushing debris ahead and enabling inline inspection tools to gather data on wall condition, deposits, and blockages. The ability to create physical separation between products in the same line is crucial for preventing cross-contamination, which is exactly what batch separation accomplishes. This combination—cleaning, inspection with data collection, and batch separation—defines the practice of pigging in fuel and ballast piping. Other options describe related activities (like merely scraping or measuring with a special tool) but don’t capture the full, primary purpose of pigging.