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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 northeast
B.East to southeast
C.North to northwest
D.South to southeast
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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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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, if the center of a high pressure area is due west of you, what wind direction would you expect?______.A.South to westB.South to eastC.North to westD.North to east
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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Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.A
Expect to see cirrus clouds followed by altostratus and nimbostratus cloudsB
Alter course to remain in the navigable semicircleC
Prepare for gusty winds，thunderstorms，and a sudden wind shiftD
Expect clear weather，with steady winds and pressure，until the front passes
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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A decrease in barometric pressure is associated with all of the following except（）.A
rising warm airB
proximity to a low pressure areaC
inward spiraling circulationD
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单选题A single barometric pressure reading of 28.60 indicates（）.A
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With a radio weather bulletin or weather faxB
using shipboard radarC
observe the wind direction and apply Buys Ballot's lawD
All of the above
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单选题Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）A
use of low viscosity oil in cold weatherB
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higher compression pressures reached due to smaller clearances existing in the engine during cold weather
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cycloneB
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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The greater the pressure difference between a high and a low pressure center，the（）.A
dryer the air mass will beB
cooler the temperature will beC
greater the force of the wind will beD
warmer the temperature will be
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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
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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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