A.high pressure fluid accumulators
B.driving air-powered plunger pumps
C.filling open-circuit breathing systems
D.bladder-type accumulators
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A.Sailing Directions
B.Light List
C.List of Private Aids
D.Aids to Navigation Manual
A.radio time signal
B.comparison with a timepiece of known error
C.applying the prevailing chronometer rate to previous readings
D.All of the above
A.National Geospatial-Intelligence Agency
B.Coast Guard
C.Naval Observatory
D.National Ocean Service
A.underlined letters
B.capital letters
C.italics
D.boldface print
A.inconspicuous
B.conspicuous
C.a government facility or station
D.a radio transmitter
最新試題
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
Compared to a low pressure system，generally the air in a high is（）.
Changing rescuers while carrying out artificial respiration should be done（）.
Dacron sails，when not in use，may be damaged if（）.
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
Day-shapes must be displayed（）.
Clouds form（）.
Control of fire should be addressed（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.