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單項選擇題

The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place and are logged（）.

A.when a new Master assumes command
B.daily，at 0800 local zone time
C.weekly，before 2400 Saturday
D.immediately after assuming the watch

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單項選擇題

The irregular black line around a charted light such as Race Rock Light indicates that it is （）.

A.unwatched
B.surrounded by riprap
C.a minor light
D.constructed on an artificial island

單項選擇題

The horizontal flat surfaces where the upper stock joins the rudder are the（）.

A.rudder keys
B.rudder palms
C.lifting flanges
D.shoes of the rudder

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