LGTCO/LGTF Exit Exam • Set 5 Question 13 of 30

In the case of a typical fully pressurized ship carrying cargo at ambient temperatures, what is the maximum design working pressure of the cargo tanks?

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Direct Answer

Option B: 18 barg

Fully pressurized gas tankers carry cargoes at ambient temperatures (up to 45°C) without refrigeration, requiring Type C pressure vessels rated for approx. 17.5 to 18 barg.

All Options

0.7 barg

18 barg (Correct Answer)

5 to 7 barg

9 barg

Detailed Explanation & Context

Fully pressurized gas tankers carry cargoes at ambient temperatures (up to 45°C) without refrigeration, requiring Type C pressure vessels rated for approx. 17.5 to 18 barg.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).

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