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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
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The circulation around a low pressure center in the Northern Hemisphere is ______.A.counterclockwiseB.variableC.clockwiseD.Anticyclonic
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When a high pressure system is centered north of your vessel in the Northern Hemisphere ______．A.You should experience hot，moist，clear weatherB.The wind direction is generally easterlyC.The winds should be from the southwest at your locationD.The winds should be brisk
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Hurricanes may move in any direction．However，it is rare and generally of short duration when a hurricane in the Northern Hemisphere moves toward the ______．A.West or northwestB.NortheastC.SoutheastD.North
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If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you, what winds can you expect in the Southern Hemisphere? ______.A.South-southwesterlyB.North-northwesterlyC.South-southeasterlyD.North-northeasterly
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If the center of low pressure is due west of you in the Northern Hemisphere, which wind direction should you expect?A.South to westB.South to eastC.West to northD.North to east
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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 northeastB.East to southeastC.North to northwestD.South to southeast
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In the Northern Hemisphere, when the center of a high pressure system is due east of your position, you can expect winds from the ______.A.south to eastB.north to westC.north to eastD.south to west
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In the Northern Hemisphere, when the wind at your location is northerly, the low pressure center causing the wind is located to your ______.A.NNWB.WSWC.ESED.SSW
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单选题A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?（）A
The low may suddenly deepen，and the cyclone intensify and pick up speedB
The left semicircle may become the dangerous semicircleC
The low and the high may merge and cancel out the weather characteristics of eachD
The high may force the cyclone to reverse its track
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单选题According to Buys Ballot’s law，when an observer in the Northern Hemisphere experiences a northwest wind，the center of low pressure is located to the（）.A
northeastB
west-southwestC
northwestD
south-southeast
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单选题In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.A
Southwest，clockwise to northwestB
Northeast，clockwise to west-southwestC
Northeast，counterclockwise to northwestD
East，counterclockwise to south-southwest
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单选题On a weather map,a large letter “h” means（）A
a high pressure area with cool, dry air and fair weatherB
a high pressure area with warm, moist air and inclement weatherC
horse latitudes, with rough seas and strong windsD
a heavy squall line near the “H”
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单选题In the Northern Hemisphere，an area of counterclockwise wind circulation surrounded by higher pressure is a（）.A
lowB
highC
warm frontD
cold front
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单选题What is the direction of rotation of tropical cyclones,tropical storms and hurricanes in the Northern Hemisphere?（）A
Clockwise and outwardB
Counterclockwise and inwardC
Counterclockwise and outwardD
Clockwise and inward
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单选题When a high pressure system is centered north of your vessel in the Northern Hemisphere（）.A
You should experience hot，moist，clear weatherB
The wind direction is generally easterlyC
The winds should be from the southwest at your locationD
The winds should be brisk
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单选题In the Northern Hemisphere，winds veering sharply to the west or northwest with increasing speed are indications that a（）.A
cold front has passedB
low pressure center is approachingC
stationary front existsD
high pressure center has passed
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单选题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 northeastB
East to southeastC
North to northwestD
South to southeast
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单选题What will a veering wind do（）.A
Change direction in a clockwise manner in the Northern HemisphereB
Circulate about a low pressure center in a counterclockwise manner in the Northern HemisphereC
Vary in strength constantly and unpredictablyD
Circulate about a high pressure center in a clockwise manner in the Southern Hemisphere
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单选题On the pole side of the high pressure belt in each hemisphere，the pressure diminishes. The winds along these gradients are diverted by the Earth’s rotation toward the east and are known as the（）.A
geostrophic windsB
doldrumsC
horse latitudesD
prevailing westerlies
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单选题You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere.What action should you take to avoid the storm（）.A
Place the wind on the starboard quarter and hold that courseB
Place the wind on the port quarter and hold that courseC
Place the wind on the port bow and hold that courseD
Place the wind on the starboard bow and hold that course
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单选题In the Northern Hemisphere，what type of cloud formations would you expect to see to the west of an approaching tropical wave?（）.A
Cumulus clouds lined up in rows extending in a northeast to southwest directionB
High altostratus clouds in the morning hoursC
Cirrostratus clouds lined up in rows extending in a northeast to southwest directionD
Cirrostratus clouds lined up in rows extending in a north to south direction
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单选题If an observer in the Northern Hemisphere faces the surface wind，the center of low pressure is to his（）.A
left，slightly behind himB
right，slightly behind himC
left，slightly in front of himD
right，slightly in front of him
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单选题In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.A
NNWB
WSWC
ESED
SSW
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单选题A katabatic wind blows（）.A
up an incline due to surface heatingB
in a circular patternC
down an incline due to cooling of the airD
horizontally between a high and a low pressure area
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单选题On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds. This area is called the（）.A
prevailing westerliesB
geostrophic windsC
doldrumsD
horse latitudes
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单选题The circulation around a low pressure center in the Northern Hemisphere is（）.A
counterclockwiseB
variableC
clockwiseD
anticyclonic
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单选题If the center of low pressure is due west of you in the Northern Hemisphere，which wind direction should you expect（）.A
South to westB
South to eastC
West to northD
North to east
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