航海英语海上天气现象单项选择题每日一练(2019.01.03)

单项选择题
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
A.A backing wind
B.A veering wind
C.Sustained gale force winds
D.A strong wind that maintains a constant speed and direction
单项选择题
（）causing strong winds and rough sea north west Bay of Biscay.
A.Strong low pressure
B.Strong high pressure
C.Steep pressure gradient
D.Steep gradient pressure
单项选择题
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
A.Magnetic field at the North Pole
B.Gulf Stream
C.Earth's rotation
D.Arctic cold fronts
单项选择题
When your vessel is on or near the path of an approaching tropical storm the（）.
A.wind direction remains steady
B.wind speed increases
C.barometer falls
D.All of the above
单项选择题
Prevailing winds between 30°N and 60°N latitude are from the（）.
A.north
B.south
C.east
D.west