单项选择题
The projecting lugs of the rudderpost which furnish support to the rudder are called（）.
A.bases
B.gudgeons
C.pintles
D.rudder lugs
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单项选择题
The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place and are logged（）.
A.on each watch，immediately before being relieved
B.before embarking on a voyage of more than 24 hours
C.daily，at 1200 local zone time
D.weekly，before 0000 Sunday -
单项选择题
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 -
单项选择题
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
