A line sample is taken at which stage?

A line sample is taken at which stage?

• A. During discharge
• B. At start of cargo ops at manifold
• C. After completion
• D. Mid-loading

Answer: (B)

Taking a line sample at the start of cargo operations at the manifold is about getting a baseline read on the cleanliness and contents of the ship’s cargo line before any cargo starts flowing. The manifold is the interface where shore lines connect to the ship’s piping, so sampling here captures what would actually be introduced into the cargo system if loading proceeds. This baseline helps detect any residues from previous cargos, water, or contamination in the line and allows you to confirm compatibility with the planned cargo or decide if further cleaning is needed. If you waited until discharge, or took samples during or after loading, you wouldn’t be measuring the line’s initial state relevant to the upcoming cargo. Discharge or mid-loading samples could be influenced by ongoing operations or current cargo, and post-loading sampling misses the opportunity to prevent cross-contamination before it happens.

Taking a line sample at the start of cargo operations at the manifold is about getting a baseline read on the cleanliness and contents of the ship’s cargo line before any cargo starts flowing. The manifold is the interface where shore lines connect to the ship’s piping, so sampling here captures what would actually be introduced into the cargo system if loading proceeds. This baseline helps detect any residues from previous cargos, water, or contamination in the line and allows you to confirm compatibility with the planned cargo or decide if further cleaning is needed.

If you waited until discharge, or took samples during or after loading, you wouldn’t be measuring the line’s initial state relevant to the upcoming cargo. Discharge or mid-loading samples could be influenced by ongoing operations or current cargo, and post-loading sampling misses the opportunity to prevent cross-contamination before it happens.