航海英语船员职务名称单项选择题每日一练(2018.10.13)

单项选择题
Do you understand（）I said?
A.what
B.that
C.which
D.who
单项选择题
During the winter months，the southeast trade winds are（）.
A.stronger than during the summer months
B.weaker than during the summer months
C.drier than during the summer months
D.wetter than during the summer months
单项选择题
During storm conditions on a ship，the mooring tensions should be adjusted so that（）.
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
单项选择题
Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.
A.used for electrical fires only
B.the smallest
C.the most accessible
D.the most effective
单项选择题
Each OSV must carry（）.
A.one category I 406 Mhz satellite EPIRB
B.at least one life buoy on each side of the vessel fitted with a buoyant life line
C.at least 12 rocket parachute flares
D.All of the above