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
Advection fog may be formed by cold air passing over a ______.
A.colder sea surface
B.warmer sea surface
C.dry coastal plains
D.high mountain or plateau
相关考题：
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
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
The fog most commonly encountered at sea is called ______.A.conduction fogB.radiation fogC.frontal fogD.advection fog
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
______ forms over land，most frequently during autumn and winter over low-lying land，especially if it is damp and marshy and in valleys on quiet nights with clear skies．A.FRONTAL FOGB.MIXING FOGC.ADVECTION FOGD.RADIATION FOG
______ 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
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
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
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.
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.
单选题An emergency sea anchor may be constructed by using（）.Aa boat bucketBan air tank filled with waterCan oar and canvas weighted downDAll of the above
单选题Advection fog holds longest over which portions of the lakes? （）ANorthwestBSoutheastCNortheastDSouthwest
单选题The fog most commonly encountered at sea is called（）.Aconduction fogBradiation fogCfrontal fogDadvection fog
单选题Advection fog may be formed by cold air passing over a（）.Acolder sea surfaceBwarmer sea surfaceCdry coastal plainsDhigh mountain or plateau
单选题Advection fog is most commonly caused by（）.Aair being warmed above the dew pointBsaturation of cold air by rainCa rapid cooling of the air near the surface of the Earth at nightDwarm moist air being blown over a colder surface
单选题In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.Arising air currents produced by the warm islandsBwarm air from the sea rising over higher land areasCcool land air mixing with warm sea airDdescending air over the islands
单选题A frontal thunderstorm is caused by（）.Apronounced local heatingBwind being pushed up a mountainCa warm air mass rising over a cold air massDan increased lapse rate caused by advection of warm surface air
单选题Radiation fog（）.Aalways forms over waterBis formed by a temperature inversionCis thinnest at the surfaceDdissipates during the evening
单选题A sea breeze is a wind（）.Athat blows towards the sea at nightBthat blows towards an island during the dayCcaused by cold air descending a coastal inclineDcaused by the distant approach of a hurricane
单选题An emergence sea anchor may be constructed by type of extinguisher?（）.Aa boat bucketBan air tank filled with waterCan oar and canvas weighted downDAll of the above
单选题In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.Aa flash generatorBa flash evaporatorCa vacuum boiling evaporatorDa boiler
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.AMIXING FOGBADVECTION FOGCRADIATION FOGDARCTIC SEA SMOKE
单选题Steam smoke will occur when（）.Aextremely cold air from shore passes over warmer waterBwarm dry air from shore passes over cooler waterCcold ocean water evaporates into warm airDcool rain passes through a warm air mass
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.AFRONTAL FOGBMIXING FOGCADVECTION FOGDRADIATION FOG
单选题When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and （） the sea water passing through the tubes.AdisposeBdissolveCheatDdissipates
单选题When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）Aan obstruction in an cylinderBwater accumulation in some engine cylindersClow starting air pressureDlow scavenge air pressure
单选题The fog produced by warm moist air passing over a cold surface is called（）.Aconduction fogBradiation fogCfrontal fogDadvection fog