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"All echo -sounders can measure the .

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"Which refers to the living space for seafarers?

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"Ships carrying 15 or more seafarers and engaged in a voyage of

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"Emergency escape breathing device on board shall have a duratio

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" sends a radio signal from the bottom of the ship to the

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"The tops of the thwarts, side benches, and the footings of a li

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"The quantity of fuel required to be carried in a motor lifeboat

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"Your passage ship has 3 lifeboats on each side. The middle boat

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"The painter of a lifeboat should be fixed at the part o

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"Storage batteries should be charged in a well-ventilated area b

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