A weather forecast states that the wind will commence backing. In the Northern Hemisphere this would indicate that it will ______.
A.shift in a clockwise manner
B.shift in a counterclockwise manner
C.continue blowing from the same direction
D.decrease in velocity
第1题：
When a high pressure system is centered north of your vessel in the Northern Hemisphere ______．
A.You should experience hot，moist，clear weather
B.The wind direction is generally easterly
C.The winds should be from the southwest at your location
D.The winds should be brisk
第2题：
By plotting the analysis messages on weather charts, we are able to ______.
A.prevent any possible accident at sea
B.prepare a reasonable forecast of the wind and weather
C.help the mariner to fix a accurate ship’s position
D.aid the salvage of a ship in peril
第3题：
In the Northern Hemisphere, when the low pressure center at your location is northerly,
causing the wind is located to your ______.
A.NNW
B.WSW
C.ESE
D.SSW
第4题：
In the Northern Hemisphere, when the wind at your location is northerly, the low pressure center causing the wind is located to your ______.
A.NNW
B.WSW
C.ESE
D.SSW
第5题：
In the Northern Hemisphere a wind is said to veer when the wind ______.
A.changes direction clockwise, as from north to east, etc
B.changes direction counterclockwise, as from south to east, etc
C.changes direction violently and erratically
D.remains constant in direction and speed
第6题：
A weather forecast states that the wind will commence veering. In the Northern Hemisphere this would indicate that it will ______.
A.shift in a clockwise manner
B.shift in a counterclockwise manner
C.continue blowing from the same direction
D.increase in velocity
第7题：
If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the Northern Hemisphere?______.
A.East to northeast
B.East to southeast
C.North to northwest
D.South to southeast
第8题：
In the Northern Hemisphere you are caught in the dangerous semicircle of a storm with plenty of sea room available. The best course of action is to bring the wind on the ______.
A.port quarter and make as much headway as possible
B.starboard quarter and make as much headway as possible
C.starboard bow and make as much headway as possible
D.port bow and make as much headway as possible
第9题：
In the Northern Hemisphere, if the center of a high pressure area is due west of you, what wind direction would you expect?______.
A.South to west
B.South to east
C.North to west
D.North to east
第10题：
北半球（northern hemisphere）