航海英语航海图书资料章节练习(2018.03.08)

单项选择题
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
A.offshore set
B.onshore set
C.head current
D.fair or following current
单项选择题
A negative metacentric height （）.
A.should always be immediately corrected
B.will always cause a vessel to capsize
C.always results from off-center weights
D.All of the above are correct
单项选择题
Navigational warnings are published according to（）.
A.the designed area
B.the designated area
C.the indicated area
D.all area over the world
单项选择题
Gangway （）with pilot ladder on my starboard side．
A.being rigged combined
B.is rigged combining
C.rigs combining
D.is rigged combined
单项选择题
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
A.total number of observations
B.average wind force on the Beaufort scale
C.average wind force in knots
D.percentage of calms
单项选择题
A latitude line will be obtained by observing a body （）.
A.on the prime vertical
B.on the celestial horizon
C.at lower transit
D.on the Greenwich meridian
单项选择题
A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is（）.
A.under tow
B.fixed to the seabed
C.underway
D.All of the above
单项选择题
Magnetic information on a chart may be （）.
A.found in the center(s) of the compass rose(s)
B.indicated by isogonic lines
C.found in a note on the chart
D.All of the above
单项选择题
A monkey fist is found on a （）.
A.heaving line
B.lead line
C.manrope
D.mooring line
单项选择题
In revised editions of Admiralty charts the（）are corrected first．
A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales