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单选题
The fog produced by warm moist air passing over a cold surface is called（）.
A
conduction fog
B
radiation fog
C
frontal fog
D
advection fog
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更多 “单选题The fog produced by warm moist air passing over a cold surface is called（）.A conduction fogB radiation fogC frontal fogD advection fog” 相关考题
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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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Cold weather starting of a diesel engine is more difficult than warm weather starting due toA.use of low viscosity oil in cold weatherB.increased moisture content of inlet air in cold weatherC.increased drag of pistons and bearings due to increased oil viscosityD.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
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Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.A.pressure changes in the air massB.movement of the air massC.the heterogeneous nature of the air massD.upper level atmospheric changes
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The first indications a mariner will have of the approach of a warm front will be ______.A.large cumulonimbus (thunderclouds) building upB.high cirrus clouds gradually changing to cirrostratus and then to altostratusC.fog caused by the warm air passing over the cooler waterD.low dark clouds accompanied by intermittent rain
考题
Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer waterB.warm dry air from shore passes over cooler waterC.cold ocean water evaporates into warm airD.cool rain passes through a warm air mass
考题
Hygroscopic cargoes should be ventilated when ______.A.going from a warm to a cold climateB.the dew point of the outside air is greater than the dew point of the air in the holdC.the dew point of the air in the hold is very lowD.the outside dew point is 16°C and the cargo temperature is 12°C
考题
Advection fog may be formed by cold air passing over a ______.A.colder sea surfaceB.warmer sea surfaceC.dry coastal plainsD.high mountain or plateau
考题
In many areas "atoll" clouds (clouds of vertical development) are produced over small islands. These are the result of ______.A.rising air currents produced by the warm islandsB.warm air from the sea rising over higher land areasC.cool land air mixing with warm sea airD.descending air over the islands
考题
______ is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature．A.MIXING FOGB.ADVECTION FOGC.RADIATION FOGD.ARCTIC SEA SMOKE
考题
A frontal thunderstorm is caused by ______.A.pronounced local heatingB.wind being pushed up a mountainC.a warm air mass rising over a cold air massD.an increased lapse rate caused by advection of warm surface air
考题
Advection fog is most commonly caused by ______.A.air being warmed above the dew pointB.saturation of cold air by rainC.a rapid cooling of the air near the surface of the Earth at nightD.warm moist air being blown over a colder surface
考题
共用题干
第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.When the warm air from the sea surface begins to rise,itA:creates an area of low pressure.B:supplies cold air to the eye of a hurricane.C:increases the sea-surface temperature.D:strengthens the rotation of the earth.
考题
共用题干
第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.Which of the following is NOT a"requirement"for the formation of a hurricane?A:Calm surrounding atmosphere.B:High air pressure.C:Warm sea-surface temperature.D:A group of thunderstorms over warm tropical waters.
考题
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”
考题
单选题Cyclones tend to move（）.A
perpendicular to the isobars in their warm sectorsB
parallel to the isobars in their warm sectorsC
parallel to the line of the cold frontD
perpendicular to the line of the cold front
考题
单选题Advection fog may be formed by cold air passing over a（）.A
colder sea surfaceB
warmer sea surfaceC
dry coastal plainsD
high mountain or plateau
考题
单选题Advection fog is most commonly caused by（）.A
air being warmed above the dew pointB
saturation of cold air by rainC
a rapid cooling of the air near the surface of the Earth at nightD
warm moist air being blown over a colder surface
考题
单选题Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.A
pressure changes in the air massB
movement of the air massC
the heterogeneous nature of the air massD
upper level atmospheric changes
考题
单选题In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.A
rising air currents produced by the warm islandsB
warm air from the sea rising over higher land areasC
cool land air mixing with warm sea airD
descending air over the islands
考题
单选题A frontal thunderstorm is caused by（）.A
pronounced local heatingB
wind being pushed up a mountainC
a warm air mass rising over a cold air massD
an increased lapse rate caused by advection of warm surface air
考题
单选题The first indications a mariner will have of the approach of a warm front will be （）.A
large cumulonimbus (thunderclouds) building upB
high cirrus clouds gradually changing to cirrostratus and then to altostratusC
fog caused by the warm air passing over the cooler waterD
low dark clouds accompanied by intermittent rain
考题
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
increased moisture content of inlet air in cold weatherC
increased drag of pistons and bearings due to increased oil viscosityD
higher compression pressures reached due to smaller clearances existing in the engine during cold weather
考题
单选题（）is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature.A
MIXING FOGB
ADVECTION FOGC
RADIATION FOGD
ARCTIC SEA SMOKE
考题
单选题Steam smoke will occur when（）.A
extremely cold air from shore passes over warmer waterB
warm dry air from shore passes over cooler waterC
cold ocean water evaporates into warm airD
cool rain passes through a warm air mass
考题
单选题（）is the most widespread type likely to be encountered at sea and is caused by relatively warm air being cooled by flowing over a cooler sea surface.A
FRONTAL FOGB
MIXING FOGC
ADVECTION FOGD
RADIATION FOG
考题
单选题Hygroscopic cargoes should be ventilated when（）.A
going from a warm to a cold climateB
the dew point of the outside air is greater than the dew point of the air in the holdC
the dew point of the air in the hold is very lowD
the outside dew point is 16°C and the cargo temperature is 12°C
考题
单选题Hygroscopic cargoes should be ventilated when（）.A
going from a warm to a cold climateB
the dew point of the outside air is greater than the dew point of the air in the holdC
the dew point of the air in the hold is very lowD
the outside dew point is 16℃ and the cargo temperature is 12℃
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