Which of the following phenomena should be described as precipitation at the ? [ Certification weather ]

Question 145-1 : Sn bcfg hz fzfg

Which of the following meteorological phenomena can rapidly change the braking ?

Question 145-2 : +fzra mifg fg hz

Which of the following phenomena can produce a risk of aquaplaning ?

Question 145-3 : +ra fg bcfg sa

Which of these four metar reports suggests that rain is most likely in the next ?

Question 145-4 : 23015kt 8000 bkn030 ovc070 17/14 q1009 becmg 4000 = 16002kt 0100 fg sct300 06/06 q1022 becmg 1000 = 05016g33kt 8000 ovc015 08/06 q1028 nosig = 34004kt 9999 sct040 sct100 m05/m08 q1014 nosig =

Precipitation in the form of showers occurs from ?

Question 145-5 : Convective clouds stratified clouds cirro type clouds clouds containing only ice crystals

A super cooled droplet is ?

Question 145-6 : A droplet still in liquid state at a temperature below 0°c a water droplet that is mainly frozen a small particle of water at a temperature below 50°c a water droplet that has been frozen during its descent

Steady precipitation in contrast to showery precipitation falls from ?

Question 145-7 : Stratiform clouds with little or no turbulence convective clouds with little or no turbulence stratiform clouds with severe turbulence convective clouds with moderate turbulence

Supercooled droplets can occur in ?

Question 145-8 : Clouds fog and precipitation clouds but not in precipitation precipitation but not in clouds clouds but not in fog

Supercooled droplets are always ?

Question 145-9 : At a temperature below freezing small and at a temperature below freezing large and at a temperature below freezing at a temperature below 60°c

The following statements deal with precipitation turbulence and icing select ?

Question 145-10 : Precipitation may be snow sleet or rain icing is probable and may range between light and severe turbulence is rarely more than moderate precipitation may be snow sleet or rain icing and turbulence are frequently severe precipitation is frequently in the form of hail icing and turbulence are frequently severe precipitation and icing are usually nil turbulence is rarely more than moderate

From what type of cloud does drizzle fall ?

Question 145-11 : Stratus altostratus cumulus cirrostratus

What type of clouds are associated with rain showers ?

Question 145-12 : Towering cumulus and cumulonimbus towering cumulus and altostratus altostratus and stratus nimbostratus

What type of clouds are associated with snow showers ?

Question 145-13 : Cumulus and cumulonimbus cumulus and altostratus altostratus and stratus nimbostratus

Which of the following phenomena should be described as precipitation at the ?

Question 145-14 : Dz sa ts sq

Which of the following phenomena should be described as precipitation at the ?

Question 145-15 : Shsn va mifg br

Solid precipitation which is transparent or translucent and has a diameter of ?

Question 145-16 : Ice pellets hail snow grains small hail

During flight in clouds which of the following means is the best one to ?

Question 145-17 : Weather radar significant weather chart aircraft observations the pilot requests the position of the cbs from the atc controller

Which of the following statements concerning airborne weather radar is correct ?

Question 145-18 : It shows on a plan position indicator the areas of precipitation of rain snow and/or hail it can also be used for proximity warning and anti collision protection the indication on the plan position indicator represents the amount mm/h of water vapour within clouds it shows the areas which are dangerous for aircraft icing the intensity levels for aircraft icing as defined by icao are indicated by contour lines

Snow grains ?

Question 145-19 : Fall from stratus or supercooled fog are normally transparent are mainly formed inside altostratus and nimbostratus are typically formed inside a cb where they are being tossed up and down while growing to such size that they could no longer be supported in the updraught

Which of the following statements is true concerning the bergeron findeisen ?

Question 145-20 : It only takes place in clouds with supercooled water droplets and ice crystals it only occurs in the mid latitudes it takes place in clouds which are composed only of ice crystals it does not occur in the tropics

Which of the following statements is true concerning the coalescence process ?

Question 145-21 : In the mid latitudes this process produces only drizzle or very light rain it only occurs in the tropics it only takes place in convective clouds it only occurs in the mid latitudes

The processes and/or effects which cause clouds to release precipitation are ?

Question 145-22 : Coalescence process and bergeron findeisen process bergeron findeisen process and convection effect convection effect and advection effect advection effect and coalescence process

State the code used to indicate moderate precipitation in the form of snow ?

Question 145-23 : Shsn sn +so ra+

The size of a drizzle droplet ?

Question 145-24 : Less than 0 5 mm less than 0 5 cm equal or more than 0 5 mm equal or more than 0 5 cm

The presence of ice pellets at a height of 8000 ft indicates ?

Question 145-25 : Freezing rain at heights above 8000 ft freezing rain at heights below 8000 ft snow at heights above 8000 ft hail at heights below 8000 ft

The weather most likely to be experienced at position 'q' is . 414 ?

Question 145-26 : Showery with generally good visibility mainly clear skies with fog developing overnight mainly overcast skies with poor visibility thundery showers particularly at night

Which statement best describes coalescence ?

Question 145-27 : Droplets velocity increases with their radius those who have grown faster will fall faster than others and will sweep smaller droplets droplets velocity changes with their radius smallest droplets will fall faster than others its the process in which a material changes from a frozen solid to a gas without passing through the intermediate liquid state its the process by which water vapor in the air is changed into liquid water

Which of the following is typical for the passage of an active cold front in ?

Question 145-28 : Mainly towering clouds mainly layered clouds rapid drop in pressure once the front has passed rapid increase in temperature once the front has passed

Examining the pictures on which one of the tracks dashed lines is this cross ?

Question 145-29 : Track b d track b c track a d track a e

Frontal depressions can be assumed to move in the direction of the 2000 feet ?

Question 145-30 : In the warm sector in front of the warm front behind the cold front at the apex of the wave

What types of cloud will you meet flying towards a warm front ?

Question 145-31 : At some 800 km cs later as and at some 300 km ns until the front extensive areas of fog at some 100 km from the front ns begin at some 500 km as later cs and at some 80 km before the front cb at some 500 km from the front groups of cb later at some 250 km thickening as

The polar front is ?

Question 145-32 : The boundary between polar and tropical air masses the boundary between arctic and tropical air masses the boundary between arctic and polar air masses the constant frontal activity situated at about 80 degrees north and south

What are the typical differences with regard to the temperature and humidity ?

Question 145-33 : The air of the azores is warmer and more humid than the north russian air the north russian air is colder and more humid than the air of the azores the air of the azores is warmer and dryer than the north russian air the north russian air is warmer and dryer than the air of the azores

Where is the source of continental tropical air that affects europe in summer ?

Question 145-34 : The southern balkan region and the near east southern italy southern france the azores region

Where does polar continental air originate ?

Question 145-35 : Siberian landmass polar ice cap the region of the azores the region of the british isles

What type of fronts are most likely to be present during the winter in central ?

Question 145-36 : Warm fronts warm occlusions cold occlusions high level cold fronts cold fronts

Which of the following conditions are you most likely to encounter when ?

Question 145-37 : Low cloud base and poor visibility severe thunderstorms at low altitude extreme turbulence and severe lightning striking the ground high cloud base good surface visibility and isolated thunderstorms

During a cross country flight at fl 50 you observe the following sequence of ?

Question 145-38 : Decreasing temperatures a strong downdraught increasing temperatures strong gusty winds

What cloud formation is most likely to occur at low levels when a warm air mass ?

Question 145-39 : Nimbostratus cumulus altostratus cumulonimbus

The approximate inclined plane of a warm front is ?

Question 145-40 : Is 1/150 is 1/50 is 1/300 is 1/500