单选题
发布日期:2021-03-22
The testing of the internal combustion engine driven emergency generators at least once each month the vessel is navigated
The testing of storage batteries for emergency lighting and power systems once each 6 months the vessel is navigated
The actual draft when the vessel arrives in salt water after departing a port
The testing of the line-throwing appliance once every 3 months
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All entries in the Official Logbook must be signed by the Master and().
Every entry required to be made in the Official Logbook shall be signed by the()...
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