航海英语航海通告与警告章节练习(2017.09.13)

单项选择题
After the passage of a cold front the visibility（）.
A.does not change
B.improves rapidly
C.improves only slightly
D.becomes poor
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
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
A.vessel being towed
B.fishing vessel engaged in trawling
C.vessel at anchor warning you of her location
D.power-driven pilot vessel on station underway
单项选择题
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
A.To keep visitors away from the barge
B.To prohibit smoking
C.To prohibit open lights
D.All of the above
单项选择题
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.
A.GL WNG
B.GEN SYN
C.STM WNG
D.TY WNG
单项选择题
The height of a tide can be increased by（）.
A.A storm surge
B.A high pressure area
C.The jet stream
D.A cold front
单项选择题
A steep barometric gradient indicates （）.
A.calms
B.light winds
C.strong winds
D.precipitation
单项选择题
Chart legends which indicate a conspicuous landmark are printed in（）.
A.capital letters
B.italics
C.boldface print
D.underlined letters
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
单项选择题
The Admiralty Notices to Mariners can be obtained （） by Masters of vessels from anyAdmiralty Chart Agent．
A.free of charge
B.with no responsibility
C.without limitations of distribution
D.with little charges