單項選擇題The disinfection of various compartments in a vessel by filling with a gaseous agent to destroy rats and all insects pests which act as germ carriers means().

A.displacement
B.fumigation
C.discharging
D.compensation


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1.單項選擇題Backing means the wind().

A.is changing clockwise in direction
B.is changing anticlockwise in direction
C.is changing cyclonically or variably in direction
D.remains unchanged in direction at the time

4.單項選擇題Which one of the followings is not required on survival crafts?()

A.Anti-seasickness medicine
B.Immersion suits
C.Axes
D.Lifebuoys

5.單項選擇題Who is responsible for the voyage plan?()

A.The person who has done the planning
B.The master
C.The navigation officer
D.The owner