Which of the following situations will most likely lead to a stable air mass ?
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Which cloud species is described by the following definition 'Clouds which present in at least some portion of their upper part cumuliform protuberances in the form of turrets which generally give ?
Which of the following processes contributes to the formation of frontal fog ?
Which cloud species described the following definition 'cumulonimbus characterised the presence mostly in its upper portion of distinct cirriform parts of clearly fibrous or striated structure frequently having form of an anvil a plume or a vast more or less disorderly mass of hair this specie usually accompanied a shower or a thunderstorm often with squalls and sometimes with hail it frequently produces very well defined virga' Rain falls from warm air into cold air. As cumulonimbus cloud grows in size it may turn into a cumulonimbus capillatus which means that it gains a fibrous edged top a clearly developed cumulonimbus capillatus displaying classic anvil shape. 
Which of following statements true concerning orographic fog It may be formed day as well as night. The most likely conditions which contribute to formation of orographic fog (hill fog) are humid stable air mass wind blowing towards hills orographic fog may be formed day as well as night. 
Which cloud type genus described the following definition 'detached clouds in form of white delicate filaments or white or mostly white patches or narrow bands these clouds have fibrous hair like appearance or a silky sheen or both' It may be formed day as well as night. cirrus cloud. 
The main components of a cirrostratus are It may be formed day as well as night. cirrus cloud. Question 137-8
Which of following circumstances most favours development of orographic fog High relative humidity. Ecqb01 2013 the most likely conditions which contribute to formation of orographic fog (hill fog) are humid stable air mass wind blowing towards hills orographic fog may be formed day as well as night. Question 137-9
The main components of an altostratus are Ice crystals water droplets. Ecqb01 2013 the most likely conditions which contribute to formation of orographic fog (hill fog) are humid stable air mass wind blowing towards hills orographic fog may be formed day as well as night. Question 137-10
Which of following cloud types found at high level Ice crystals water droplets. Ecqb01 2013 cc cirrocumulus (high level) sc stratocumulus (low level) st stratus (low level) ac altocumulus (medium level) . Question 137-11
In wintertime stratus often formed when warm maritime air moves over cold land how can such clouds be classified Ice crystals water droplets. kschepers why? thanks in advance your answer! these clouds are classified as 'turbulence clou because they are formed the action of atmospheric turbulence they are not formed orographic frontal or convective lifting these clouds are usually formed in a distinctive layer above condensation level which about 1000 ft thick in otherwise stable atmosphere. Question 137-12
Which cloud type 'genu described the following definition 'grey cloud layer often dark appearance of which rendered diffuse more or less continuously falling rain or snow which in most cases reaches ground it thick enough throughout to blot out s low ragged clouds frequently occur below layer with which they may or may not merge' Ice crystals water droplets. kschepers why? thanks in advance your answer! these clouds are classified as 'turbulence clou because they are formed the action of atmospheric turbulence they are not formed orographic frontal or convective lifting these clouds are usually formed in a distinctive layer above condensation level which about 1000 ft thick in otherwise stable atmosphere. Question 137-13
Which cloud type 'genu described the following definition 'cumulus clouds which are markedly sprouting and are often of great vertical extent their bulging upper part frequently resembles a cauliflower' Ice crystals water droplets. kschepers why? thanks in advance your answer! these clouds are classified as 'turbulence clou because they are formed the action of atmospheric turbulence they are not formed orographic frontal or convective lifting these clouds are usually formed in a distinctive layer above condensation level which about 1000 ft thick in otherwise stable atmosphere. Question 137-14
Which of following statements true concerning frontal fog It may be formed day as well as night. kschepers why? thanks in advance your answer! these clouds are classified as 'turbulence clou because they are formed the action of atmospheric turbulence they are not formed orographic frontal or convective lifting these clouds are usually formed in a distinctive layer above condensation level which about 1000 ft thick in otherwise stable atmosphere. Question 137-15
Which of following statements true concerning orographic fog It formed when air forced to rise up a slope. Easa 2014 the most likely conditions which contribute to formation of orographic fog (hill fog) are humid stable air mass wind blowing towards hills orographic fog may be formed day as well as night. Question 137-16
Which of following cloud types will most probably form when cold moist air moves over a warm surface It formed when air forced to rise up a slope. Easa 2014 over a warm surface a cold air will be heated convection lower layer will rise increase instability this will lead to formation of cumulus possible cumulonimbus with sometime severe thunderstorms. Question 137-17
Which of following clouds may extend into more than one étage It formed when air forced to rise up a slope. as strange as easa can be french word 'étage' (with its acute accent) has been used at exam instead of 'leve (referring to low medium high level clouds classification). Question 137-18
Which of following circumstances most favours development of frontal fog Increase of relative humidity evaporation of rain drops. Revised ecqb03 august 2016 frontal fog most likely to occur in advance of a warm front it due to rain falls from warm air into cold air frontal fog can be formed condensation of air saturated evaporation of precipitation steaming fog the same as arctic smoke or sea smoke is caused cold air moving over a warm surface advection fog forms when warm humid air flows over a cold surface radiation fog forms due to surface cooling at night in a light wind. Question 137-19
Where does one normally find highest cloud tops In a tropical cyclone. Revised ecqb03 august 2016 frontal fog most likely to occur in advance of a warm front it due to rain falls from warm air into cold air frontal fog can be formed condensation of air saturated evaporation of precipitation steaming fog the same as arctic smoke or sea smoke is caused cold air moving over a warm surface advection fog forms when warm humid air flows over a cold surface radiation fog forms due to surface cooling at night in a light wind. Question 137-20
The frontal or mixing fog results from meeting of A warm very humid air mass with a cold very humid air mass. Revised ecqb03 august 2016 frontal fog most likely to occur in advance of a warm front it due to rain falls from warm air into cold air frontal fog can be formed condensation of air saturated evaporation of precipitation steaming fog the same as arctic smoke or sea smoke is caused cold air moving over a warm surface advection fog forms when warm humid air flows over a cold surface radiation fog forms due to surface cooling at night in a light wind. Question 137-21
What wind conditions occurring just before dawn favour formation of fog at an airport where temperature 15°c and dew point 14°c A warm very humid air mass with a cold very humid air mass. Revised ecqb03 august 2016 frontal fog most likely to occur in advance of a warm front it due to rain falls from warm air into cold air frontal fog can be formed condensation of air saturated evaporation of precipitation steaming fog the same as arctic smoke or sea smoke is caused cold air moving over a warm surface advection fog forms when warm humid air flows over a cold surface radiation fog forms due to surface cooling at night in a light wind. Question 137-22
If you are flying from zurich to stockholm at fl 240 what conditions can you expect at cruising altitude 400 Out of cloud throughout flight. the questions states at cruising altitude (fl240) only at this level you are out of cat area out of clud (top of clouds at fl150) there no scattered thunderstorms. Question 137-23
In which cloud type does moderate to severe airframe icing most probably occur In nimbostratus clouds. airframe icing will not happen in cirrus cloud (composed of ice crystals) or if temperature above 0ºc ns (nimbostratus) produces heavy rain if rain falls through a cold air mass (below freezing level) moderate to severe airframe icing can occur in clear air you can only have light icing. Question 137-24
Which of following clouds represents most stable air mass Altocumulus lenticularis. airframe icing will not happen in cirrus cloud (composed of ice crystals) or if temperature above 0ºc ns (nimbostratus) produces heavy rain if rain falls through a cold air mass (below freezing level) moderate to severe airframe icing can occur in clear air you can only have light icing. Question 137-25
A frontal depression passes through airport what form of precipitation do you expect Continuous rain or snow during 6 hours until warm front arrives the precipitation stops several hours within warm sector on arrival of cold front showers within a couple of hours. airframe icing will not happen in cirrus cloud (composed of ice crystals) or if temperature above 0ºc ns (nimbostratus) produces heavy rain if rain falls through a cold air mass (below freezing level) moderate to severe airframe icing can occur in clear air you can only have light icing. Question 137-26
Which of following are favourable conditions the formation of freezing rain Warm air aloft from which rain falling into air with a temperature below °c. freezing rain associated with warm fronts warm occlusions in a warm front freezing level lower than behind (in warm sector) the slope means that freezing rain will be falling on anything underneath so if you are flying towards a warm front (or warm occlusion) watch out! supercooled water droplets from above will freeze onto your cold airframe once you see ice pellets expect freezing rain next . Question 137-27
Which form of precipitation from clouds containing only water most likely to fall in mid latitudes Warm air aloft from which rain falling into air with a temperature below °c. large waterdropplets will only form in clouds with large vertical extent most likely also contain ice since this cloud only contains water it probably a normal stratus cloud the most likely answere therefore must be drizzle answers rain with large drops refer to cumulonimbus cloud at mid latitudes in summer a cumulonimbus cloud contains ice crystals water droplets supercooled water droplets. Question 137-28
Which of following zones most likely to encounter little or no precipitation The north side of alps with a prevailing foehn from south. foehn winds produce precipitation on windward side but are dry warm on lee ward side the lee ward side most likely zone to encounter little or no precipitation fronts occlusions produce plenty of precipitation. Question 137-29
What encountered during summer over land in centre of a cold air pool Showers thunderstorms. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-30
What type of cloud can produce hail showers Showers thunderstorms. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-31
Which airport at 1200 utc has lowest probability of precipitation 268 Showers thunderstorms. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-32
Flight lisbon to bordeaux eta 1800 utc what type of precipitation forecast on approach to bordeaux taf lfbd 281400z 281524 26015kt 9999 shra bkn020 tempo 1620 26020g30kt 8000 +shra bkn015cb prob30 tsra = Showers thunderstorms. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-33
An airborne weather radar installation makes it possible to detect location of Zones of precipitation particularly liquid state precipitation also their intensity. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-34
At which altitude at temperate latitudes may hail be expected in connection with a cb From ground up to a maximum of fl 45. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-35
With which of following types of cloud '+ra' precipitation most commonly associated From ground up to a maximum of fl 45. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-36
With what type of cloud 'gr' precipitation most commonly associated From ground up to a maximum of fl 45. a cold pool a meteorologic term a cold air block it an area with light or no wind low temperature it a place of instability convective activity. Question 137-37
With what type of cloud 'dz' precipitation most commonly associated From ground up to a maximum of fl 45. drizzle a slowly falling precipitation in form of tiny water droplets with diameters less than 0 5 millimeters it falls from stratus clouds is often associated with low visibility fog stratus does not usually produce precipitation but when it does occur it in form of minute particles such as drizzle ice crystals or snow grains. Question 137-38
Which of following cloud types least likely to produce precipitation From ground up to a maximum of fl 45. drizzle a slowly falling precipitation in form of tiny water droplets with diameters less than 0 5 millimeters it falls from stratus clouds is often associated with low visibility fog stratus does not usually produce precipitation but when it does occur it in form of minute particles such as drizzle ice crystals or snow grains. Question 137-39
With what type of cloud heavy precipitation unlikely during summer months From ground up to a maximum of fl 45. cb (cumulonimbus) ns (nimbostratus) produce heavy rain the only possible answer sc as (stratocumulus altostratus) with sc as you will get light rains. Question 137-40
With what type of cloud '+tsra' precipitation most commonly associated From ground up to a maximum of fl 45. cb (cumulonimbus) ns (nimbostratus) produce heavy rain the only possible answer sc as (stratocumulus altostratus) with sc as you will get light rains.
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