A.To keep visitors away from the barge
B.To prohibit smoking
C.To prohibit open lights
D.All of the above
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A.Electrical wiring
B.Iron pipe
C.Radio
D.All of the above
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
最新試題
Vessels should not anchor or trawl in the vicinity of pipelines and are（）in the pipeline area shown on the chart.
The fog most commonly encountered at sea is called（）.
Steam smoke will occur when（）.
On notification by Admiralty Notice to Mariners that a new edition of one of the books，or a new supplement to one，has been published，it should be obtained（）.
In revised editions of Admiralty charts the（）are corrected first．
The range of a light on Admiralty Charts is normally the（）.
Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.
Weekly Notices are dated for the（）appropriate to the week they are issued on the UKHO website.
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.
RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWELL SE 3－4M.This description is likely to be under the heading of（）.