航海英语海洋学基本知识单项选择题每日一练(2019.01.20)

单项选择题
In the Northern Hemisphere you are caught in the dangerous semicircle with plenty of sea room available. The best course of action is to bring the wind on the（）.
A.starboard bow and make as much headway as possible
B.starboard quarter，and make as much headway as possible
C.port quarter，and make as much headway as possible
D.port bow，and make as much headway as possible
单项选择题
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in（）.
A.spring，around late evening
B.spring，around early evening
C.fall，around early morning
D.fall，around midday
单项选择题
In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream，and is called a（）.
A.seiche
B.bore
C.boundary wave
D.surge
单项选择题
A current perpendicular to a vessel’s track has the greatest effect on the vessel’s course made good（）.
A.at high vessel speeds
B.at low vessel speeds
C.in shallow water
D.in deep water
单项选择题
In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.
A.ahead of the storm center
B.in the dangerous semicircle
C.in the navigable semicircle
D.directly in the approach path of the storm