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：
If the center of low pressure is due west of you in the Northern Hemisphere, which wind direction should you expect?
A.South to west
B.South to east
C.West to north
D.North to east
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：
northeast
west-southwest
northwest
south-southeast
第5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6题：
A wind vane on a moving vessel shows ______.
A.dead reckoning wind direction
B.true wind direction
C.apparent wind direction
D.estimated wind direction
第7题：
In the southern hemisphere the wind flow associated with a low pressure system will have which of the following characteristic？________.
A.the wind velocity is least near the center of the system
B.th e direction of the flow is counterclockwise
C.both A and B
D.neither A nor B
第8题：
When recording the wind direction in the weather log，you would report the ______．
A.direction the wind is blowing toward
B.direction the wind is blowing from
C.duration of the maximum gust of wind
D.wind chill factor
第9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10题：
low
high
warm front
cold front