Basic Tanker Operations Practice Test

The double hull section of a tanker is capable of carrying which of the following liquids?

Crude oil Refined product None of the above Water

Correct Answer:

None of the above

Explanation:

The key idea is that a tanker’s double hull creates an outer hull and an inner cargo-holding hull with a space between them that’s used as ballast tanks. That interspace is specifically designed to hold seawater to provide stability and trim for the ship. Cargo liquids like crude oil or refined products are stored in the inner cargo tanks, not in the ballast interspace. So, the liquid that the double hull section is meant to carry is water (ballast). Crude oil and refined products go in the vessel’s cargo tanks inside the inner hull.

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