A.nominal range
B.luminous range
C.geographical range
D.visible range
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A.A storm surge
B.A high pressure area
C.The jet stream
D.A cold front
A.Extremely cold air from shore passes over warmer water
B.Warm dry air from shore passes over cooler water
C.Cold ocean water evaporates into warm air
D.Cool rain passes through a warm air mass
A.Reprints of Radio Navigational Warnings
B.Amendments to Admiralty Sailing Directions
C.Amendments to Admiralty Lists of Lights and Fog Signals
D.Amendments to Admiralty List of Radio Signals
A.Chart Number only
B.Chart Number + Previous NM Number/Year
C.Chart Number + Between Previous and Present Dates
D.Cumulative Number
A.as soon as possible
B.prior to its publication
C.in advance of any possible accident
D.by means of other than airmails
最新試題
Information for updating nautical charts is primarily found in the（）.
Navigational warnings are published according to（）.
Vessels should not anchor or trawl in the vicinity of pipelines and are（）in the pipeline area shown on the chart.
Which would influence a magnetic compass（）.
Weekly Notices are dated for the（）appropriate to the week they are issued on the UKHO website.
The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
The fog most commonly encountered at sea is called（）.
Weekly NMs are available without subscription from appointed（）.