OCTCO/OCTF Exit Exam • Set 6 Question 6 of 30
The purpose of a cofferdam between two compartments is to?
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Direct Answer
Option D: Prevent different liquids from the two tanks coming in contact in case of a leak
A cofferdam is an isolating void space between two bulkheads designed to prevent liquid or vapour from leaking directly between adjacent compartments (e.g. cargo tank and engine room).
All Options
A
Store tools and equipment that are necessary for the adjacent compartments
B
Give access to the bulkhead for inspection and repairs when the tanks are full with liquid
C
Keep a reserve space if the capacity of either compartment needs to be increased
D
Prevent different liquids from the two tanks coming in contact in case of a leak
(Correct Answer)
Detailed Explanation & Context
A cofferdam is an isolating void space between two bulkheads designed to prevent liquid or vapour from leaking directly between adjacent compartments (e.g. cargo tank and engine room).
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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