A.three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond
B.two black balls
C.three shapes; the highest and lowest shall be black balls，and the middle shall be a red diamond
D.three shapes; the highest and lowest shall be black balls and the middle shall be a black diamond
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A.two balls in a vertical line
B.two diamonds in a vertical line
C.a single black ball
D.no shape is shown during the day
A.injured is unfit for duty
B.injured is able to return to work
C.injury results in loss of life only
D.injury is the result of misconduct
A.all mooring lines have a different tension
B.the leeward lines have higher tension than the windward lines
C.the maximum tension of the most heavily loaded line does not exceed the safe working load
D.all horizontal tension forces on the windward lines are no greater than the vertical tension forces
A.The designated person in charge
B.The tankerman
C.The senior able seaman
D.The oiler
A.buoyancy
B.extra storage space
C.additional tank capacity
D.reduced stability
最新試題
Fighting a rig fire in the ballast pumproom with hoses would adversely affect the stability of the rig most by（）.
During which condition should the operator of a pedestal crane shutdown operations?（）
During which condition should the operator of a pedestal crane shutdown operations?（）
During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.
Each EPIRB required on an OSV shall be tested using the integrated test circuit and output indicator every（）.
During which condition should the operator of a pedestal crane shutdown operations?（）
During the day，a vessel picking up a submarine cable shall carry（）.
During oil transfer operations，who is responsible for ensuring that the posted transfer procedures are followed?（）
During the winter months，the southeast trade winds are（）.
Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.