A.bulkwark
B.deck line
C.gunwale bar
D.sheer strake
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A.variation curve
B.dead weight scale
C.table of azimuth
D.freebo rd assignment
A.cargo runners
B.stays
C.topping lifes
D.All of the above
A.being rigged combined
B.is rigged combining
C.rigs combining
D.is rigged combined
A.should be worn while fighting a fire
B.can be used in atmosphere deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
A.settle near the bottom of the blige
B.settle near the top of the bilge
C.settle evenly throughout all levels of the bilge by mixing with air
D.disperse to atmosphere
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When steering by autopilot,how often should the steering be checked?（）
Which of the following is not an operation mode of AIS?（）
The helm command PORT TWENTY means（）.
（）is on the panel of radar.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
Full details of all lights and fog signals are shown on（）.
The ISM code is part of（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
A tide is called diurnal when（）.