A.Electrical wiring
B.Iron pipe
C.Radio
D.All of the above
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A.Let the anchor fall free from the hawsepipe，but apply the brake at intervals to check the rate of fall
B.Back the anchor slowly out of the hawsepipe a few feet，and then let it fall in the normal fashion
C.Let the anchor fall off the brake right from the hawsepipe，but keep a slight strain on the brake
D.Under power，back the anchor out until it is near，but clear，of the bottom before letting it fall
A.Light List
B.Notice to Mariners
C.Coast Pilot
D.Sailing Directions
A.They mark the limits of breakers in that area
B.These lines warn the mariner of submerged rocks
C.They mark the boundary lines of fish trap areas
D.These lines warn the mariner of submerged pipelines
A.Fleet Guides
B.Notice to Mariners
C.Sailing Directions
D.Pilot Charts
A.Monday
B.Tuesday
C.Wednesday
D.Thursday
最新試題
Weekly NMs are available without subscription from appointed（）.
Steam smoke will occur when（）.
Which would influence a magnetic compass（）.
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．
Navigational warnings are published according to（）.
Steam smoke will occur when（）.
Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.