GASCO Exit Exam • Set 10 Question 28 of 30

Or the GT NO 96 containment system, what is the recommended cargo tanks inerting operation completion methane content?

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Direct Answer

Option B: Less than 3% volume of methan

In Gaztransport & Technigaz NO 96 membrane containment systems, Invar membranes and perlite insulation boxes maintain cargo containment and thermal insulation.

All Options

5% by volume of methane or mor

Less than 3% volume of methan (Correct Answer)

7% by volume of methane or mor

9% by volume of methane or mor

Detailed Explanation & Context

In Gaztransport & Technigaz NO 96 membrane containment systems, Invar membranes and perlite insulation boxes maintain cargo containment and thermal insulation.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).

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Q1 Which of these is not a possibility if by accident the insulation spaces are over pressurized? Q2 Fire-fighting measures shown in MSDS will not include, Q3 If icing is not very effective, the next method to be followed is around the injured area. Q4 In ABC method, A stands for Q5 What should be the typical content of oxygen in inert gas produced by an inert gas generator onboard an LNG carrier? Q6 Some of the examples of___________ are methane, ethane, propane and butane. Q7 If an LNG sale document is marked as Free on Board (FOB), after discharge who is the owner of the "heel' retained onboard? Q8 What is the temperature at which gas saturates and the water vapor present begins to condense? Q9 Identify the correct name for a gas or mixture of gases, containing insufficient oxygen to initiate and support combustion where oxygen content is not greater than 5% by volume. Q10 What is the designed boil-off rate for a typical membrane type LNG carrier?