A ship with two layers of wall between sea and cargo, reducing risk of oil spills?

A ship with two layers of wall between sea and cargo, reducing risk of oil spills?

• A. Single hull
• B. Triple hull
• C. Double hulled
• D. Quadruple hulled

Answer: (C)

The concept being tested is how a double-hulled tanker provides protection against oil spills. With two layers of wall between the sea and the cargo, there is an outer hull and an inner hull. If the outer hull is damaged, the inner hull still contains the cargo, greatly reducing the chance that oil leaks into the ocean. A single-hull ship has only one barrier, so damage is more likely to lead to a spill. While adding more layers (triple or quadruple hulls) could offer extra protection, the standard and most effective design for minimizing spills in oil transport is the double hull, which directly matches the description in the question.

The concept being tested is how a double-hulled tanker provides protection against oil spills. With two layers of wall between the sea and the cargo, there is an outer hull and an inner hull. If the outer hull is damaged, the inner hull still contains the cargo, greatly reducing the chance that oil leaks into the ocean. A single-hull ship has only one barrier, so damage is more likely to lead to a spill. While adding more layers (triple or quadruple hulls) could offer extra protection, the standard and most effective design for minimizing spills in oil transport is the double hull, which directly matches the description in the question.