单项选择题
（）of the following need not be entered in the official logbook?
A.The testing of the internal combustion engine driven emergency generator at least once each month the vessel is navigated
B.The testing of storage betteries for emergency lighting and systems once each 6 months the vessels is navigated
C.The actual draft when the vessel arrives in salt water after department a port
D.The testing of the line-throwing appliance once every 3 months
相关考题
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单项选择题
（）of the following statements is incorrect regarding a fire and boat drill ao board your cargo vessel.
A.At least one fire and drill shall be held within 24 hours of leaving a port where more than 25 percent of the crew has been replaced
B.The Master is responsible in seeing thst each lifeboat is lowered to the water at least once in each 6 months
C.Lifeboat equipment shall be examined at least once each month to insure that it is complete
D.An entry shall be made in the vessels official Logbook relative eo each fire and boat drill -
单项选择题
（）refers to the angle between true North and heading line of the vessel.
A.True position
B.True meridian
C.True course
D.True bearing -
单项选择题
（）the incomplete nature of the survey ,heavy draught vessels warned not to navigate within the 10 fathom line.
A.Because
B.Owing to
C.Having been
D.Being
