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Question 169-1 : A cold air pool can be best identified by means of ? [ Formation assignment ]

The isohypses on an upper air chart

Admin .isohypses contour lines are drawn on a constant pressure chart therefore they indicate the true altitude of a pressure level on an upper air chart as it includes temperature and wind indications you can easily identify a cold air pool you will have an area with light or no wind low temperature exemple 269 The isohypses on an upper air chart.

Question 169-2 : What wind direction will occur over the sea at point 'f' . 374 ?

South

Admin .we know that the wind blows parallel to the isobars we can see a warm front c a cold front a a warm sector b and a cold occlusion d .note it's a cold occlusion since the line of the occlusion is approximately along the same line as the cold front .with the cold occlusion and the warm sector it's a depression located in the northern hemisphere over the sea angle between wind direction and isobars changes by 10° value to be used in examinations .we can assume that the wind direction at point 'f' is south exemple 273 South.

Question 169-3 : What are the normal and official sources of meteorological information for an aircraft in flight ?

Volmet broadcast atis all ats units

Cqb15 august 2011 exemple 277 Volmet broadcast, atis, all ats-units.

Question 169-4 : Runway visual range is calculated from values derived from ?

Transmissometers

Admin .the meteorological measurement of runway visual range is performed by transmissometers or forward scatter meters placed on the airport exemple 281 Transmissometers.

Question 169-5 : What is an 'aerodrome warning' ?

A message issued by a meteorological office concerning the meteorological conditions which could adversely affect aircraft on ground including parked aircraft and the aerodrome facilities and services

exemple 285 A message issued by a meteorological office concerning the meteorological conditions which could adversely affect aircraft on ground, including parked aircraft, and the aerodrome facilities and services.

Question 169-6 : An aerodrome warning message gives information among other things about ?

Ts sn including the expected or observed snow accumulation hoar frost

exemple 289 Ts, sn including the expected or observed snow accumulation, hoar frost.

Question 169-7 : What are the colours with which a stationary front is shown on a surface chart ?

Red and blue

Admin . 488.cold front blue .warm front red exemple 293 Red and blue.

Question 169-8 : How would the term 'vertical visibility is missing or not measurable' be indicated in a metar ?

Vv///

exemple 297 Vv///.

Question 169-9 : An aircraft is flying from point a to point b at the flight level corresponding to the pressure surface of the constant pressure chart which of the following statements is correct . 379 ?

Wind speed over a is higher than over b

The wind arrow at melbourne indicates that the system centred above a is a low depression if you count the contours a is at a lower contour height and therefore true altitude than b which is at a lower contour height than melbourne however the contours are closer and the wind stronger at a than at b exemple 301 Wind speed over a is higher than over b.

Question 169-10 : Which kind of meteorological messages are normally transmitted in a vhf volmet broadcast within europe ?

Metar / speci

exemple 305 Metar / speci.

Question 169-11 : While using the airborne weather radar in order to circumnavigate thunderstorms the radar scope is clear between heavy echoes .which of the following interpretations of the scope is correct ?

The clear area indicates an area from which no echoes are received however this radar scope provides no assurance of being in vmc while flying in this area

exemple 309 The clear area indicates an area from which no echoes are received. however, this radar scope provides no assurance of being in vmc while flying in this area.

Question 169-12 : Which constant pressure chart is standard for fl 240 ?

400 hpa

exemple 313 400 hpa.

Question 169-13 : If a flight at fl 150 is planned which of these upper wind and temperature charts would be nearest to that flight level ?

600 hpa

exemple 317 600 hpa.

Question 169-14 : For the planning of a flight with an estimated time of departure 0930 local time from an european airport a satellite picture is used to locate areas of fog .what type of satellite imagery available with observation time close to etd does provide most likely the best information to locate these ?

Visual vis and infrared ir polar orbiting system

Admin .polar orbiting satellites orbit the earth at an altitude of approximately 850 km since they complete one orbit every 105 minutes the satellites circle the earth 14 times a day because of the orbital shift resulting from the planet's rotation they move west by approximately 2 time zones per orbit .visual this is basically a photo of the clouds and is only available during daylight hours .infra red measures the heat thermal footprint of areas of cloud or the earth's surface if clouds are thin or absent and can be used both day and night .geostationary satellites orbit the earth at about 36000 km of altitude.over the equator they are called geostationary because their position does not change with respect to a point on the surface of the earth .polar orbiting satellites are close to the surface they provide the best information to locate a small area of fog exemple 321 Visual (vis) and infrared (ir), polar orbiting system.

Question 169-15 : Which constant pressure chart is standard for fl 140 ?

600 hpa

exemple 325 600 hpa.

Question 169-16 : Which of the following constant pressure charts would be most relevant for planning a flight at fl 260 ?

400 hpa

exemple 329 400 hpa.

Question 169-17 : Runway visual range is calculated from values derived from ?

Forward scatter meters

Admin .the meteorological measurement of runway visual range is performed by transmissometers or forward scatter meters placed on the airport exemple 333 Forward-scatter meters.

Question 169-18 : Which of the following messages should be cancelled when the conditions are no longer occurring or no longer expected to occur ?

Aerodrome warning

exemple 337 Aerodrome warning.

Question 169-19 : Which of the following symbols represents a quasi stationary front . 383 ?

Symbol 3

exemple 341 Symbol 3.

Question 169-20 : Which kind of meteorological messages are normally transmitted in an atis ?

Met report / special

Local routine met report and local special special reports are given by an atis .for local routine and special reports the present weather information should be representative of conditions at the aerodrome exemple 345 Met report / special

Question 169-21 : What is the meaning of the different coloured areas on a plan position indicator of an airborne weather radar ?

Different ranges of intensities of precipitation

exemple 349 Different ranges of intensities of precipitation.

Question 169-22 : What name is given to the jet stream lying over scandinavia c . 385 ?

Polar front jet stream

exemple 353 Polar front jet stream.

Question 169-23 : Below is the forecast for the destination of a flight whose eta is 2030 utc .taf yudo 120600z 121206 17010kt 3000 sct005 becmg 1820 vrb03kt bcfg skc becmg 2022 0300 fg vv002=.what can be said about the destination airport at 2030 utc if cat ii ils minima 350 m rvr 100 ft decision height are being ?

Has to be considered as closed

Becmg 2022 0300 fg vv002=.becoming between 20h and 22h visbility 300 m fog vertical visibility 200 ft .a meteorological visibility to rvr conversion is not used for category ii or iii minima thus with only 300 m of horizontal visibility the destination airport at 2030 utc has to be considered as closed exemple 357 Has to be considered as closed.

Question 169-24 : A flight with a jet aeroplane from munich to london is planned with a departure time of 2250 local time which type of satellite imagery available with observation time close to etd is best to locate the clouds and the exact position of a cold front forecast for this night over western europe ?

Infrared ir polar orbiting

Admin .polar orbiting satellites orbit the earth at an altitude of approximately 850 km since they complete one orbit every 105 minutes the satellites circle the earth 14 times a day because of the orbital shift resulting from the planet's rotation they move west by approximately 2 time zones per orbit .visual this is basically a photo of the clouds and is only available during daylight hours .infra red measures the heat thermal footprint of areas of cloud or the earth's surface if clouds are thin or absent and can be used both day and night .geostationary satellites orbit the earth at about 36000 km of altitude over the equator they are called geostationary because their position does not change with respect to a point on the surface of the earth .polar orbiting satellites are close to the surface they provide the best information to locate the clouds and the exact position of a cold front exemple 361 Infrared (ir), polar orbiting.

Question 169-25 : What is a volmet broadcast ?

Provision as appropriate of current metar speci taf and sigmet by means of continuous and repetitive voice broadcast

Ecqb01 2013 exemple 365 Provision, as appropriate, of current metar, speci, taf and sigmet by means of continuous and repetitive voice broadcast.

Question 169-26 : Which of the following statements concerning the use of airborne weather radar in the vicinity of thunderstorms is true ?

Accurate assessment of the weather ahead of the aircraft might be hampered due to the attenuation of the radar echoes by heavy rain

Ecqb01 2013 exemple 369 Accurate assessment of the weather ahead of the aircraft might be hampered due to the attenuation of the radar echoes by heavy rain.

Question 169-27 : An aircraft encounters atmospheric conditions in which abrupt changes of attitude and altitude of the aircraft occur changes in accelerometer readings go up to 1 2 g measured at the aircraft's centre of gravity lose objects inside the aircraft are tossed about .which report if any is required ?

Special air report

Ecqb01 2013 exemple 373 Special air-report.

Question 169-28 : What is the meaning of the following weather message .cnl ws wrng 1 211130/211330= ?

The first wind shear warning on the 21st of that month issued at 1130 utc has been cancelled at the same day at 1330 utc

Admin .cnl for cancelled .ws for windshear .wrng for warning .1 for first warning message of the day .211130/211330 issued at 1130 utc cancelled at 1330 utc the same day .= end of the message .the explanations for the abbreviations can be found in the procedures for air navigation services icao abbreviations and codes pans abc doc 8400 exemple 377 The first wind shear warning on the 21st of that month, issued at 1130 utc has been cancelled at the same day at 1330 utc.

Question 169-29 : Which interpretation of the following message is correct .lfld ad wrng 1 valid 050430/050900 frost fcst= ?

It is forecast that some parts of the surface vehicles and aircraft parked outside will be contaminated by hoar frost between 0430 and 0900 on the 5th of that month

Ecqb01 2013 exemple 381 It is forecast that some parts of the surface, vehicles, and aircraft parked outside will be contaminated by hoar frost between 0430 and 0900 on the 5th of that month.

Question 169-30 : What is the meaning of 'rera' in a metar ?

There has been moderate or heavy rain since the last issue of metar

exemple 385 There has been moderate or heavy rain since the last issue of metar.

Question 169-31 : Which of these statements about weather satellites are correct or incorrect .1 the picture from geostationary weather satellites are generally of higher resolution than the pictures from satellites in a polar orbit .2 satellites in a polar orbit are closer to the earth than geostationary ?

1 is incorrect and 2 is correct

Ecqb01 june 2013 ..polar orbiting satellites are close to the surface they provide higher resolution pictures .polar orbiting satellites orbit the earth at an altitude of approximately 850 km .geostationary satellites orbit the earth at about 36000 km of altitude over the equator exemple 389 1 is incorrect and 2 is correct.

Question 169-32 : Which pilots are obliged to transmit a special air report if they encounter severe aircraft icing ?

All categories of pilots

Ecqb01 june 2013 exemple 393 All categories of pilots.

Question 169-33 : Which of the following groups of conditions requires a crew to transmit a special air report subsonic air transport ?

Severe turbulence widespread thunderstorms severe mountain waves

Easa 2014..special airreps or pireps are required when pilots encounter unusual and potentially dangerous conditions in flight such as . severe turbulence. severe icing. severe mountain waves. thunderstorms that are obscured embedded widespread or in squall lines. hail. heavy dust clouds or sandstorms. volcanic ash clouds. volcanic eruptions or pre eruption activity.section one aircraft identification position time flight level or altitude next position and time over ensuing significant point .section two eta and endurance .section three air temperature wind direction and speed turbulence icing conditions and humidity if available exemple 397 Severe turbulence, widespread thunderstorms, severe mountain waves.

Question 169-34 : To which type of message does the following text belong . valid 211600/212000 hvy sn 25cm fcst= ?

Aerodrome warning

Admin .heavy snow expected 25 cm .an aerodrome warning message is a message issued by a meteorological office concerning the meteorological conditions which could adversely affect aircraft on ground including parked aircraft and the aerodrome facilities and services .an aerodrome warning message gives information among other things about ts sn including the expected or observed snow accumulation hoar frost exemple 401 Aerodrome warning.

Question 169-35 : For subsonic cruising levels a sigmet is not issued in case of ?

Isolated cb

Easa 2014 ..icao annex 3 meteorological service for international air navigation .a sigmet is issued for .thunderstorm . obscured obsc ts. embedded embd ts. frequent frq ts. squall line sql ts. obscured with hail obsc tsgr. embedded with hail embd tsgr. frequent with hail frq tsgr. squall line with hail sql tsgr..tropical cyclone . tropical cyclone tc + cyclone name ..turbulence . severe turbulence sev turb..icing . severe icing sev ice. severe icing due to freezing rain sev ice fzra ..mountain wave . severe mountain wave sev mtw..duststorm . heavy duststorm hvy ds..sandstorm . heavy sandstorm hvy ss..volcanic ash . volcanic ash va + volcano name if known ..radioactive cloud . radioactive cloud rdoact cld exemple 405 Isolated cb.

Question 169-36 : What is a radiosonde ?

Instrument intended to be carried by a balloon up through the atmosphere equipped with devices to measure meteorological variables and provided with a radio transmitter for sending this information to the observing station

Admin .a radiosonde is a battery powered telemetry instrument package carried into the atmosphere usually by a weather balloon that measures various atmospheric parameters and transmits them by radio to a ground receiver modern radiosondes measure or calculate the following variables altitude pressure temperature relative humidity wind both wind speed and wind direction cosmic ray readings at high altitude and geographical position exemple 409 Instrument intended to be carried by a balloon up through the atmosphere, equipped with devices to measure meteorological variables and provided with a radio transmitter for sending this information to the observing station.

Question 169-37 : A special air report ?

May trigger a sigmet message

Easa 2014..special airreps or pireps are required when pilots encounter unusual and potentially dangerous conditions in flight such as . severe turbulence. severe icing. severe mountain waves. thunderstorms that are obscured embedded widespread or in squall lines. hail. heavy dust clouds or sandstorms. volcanic ash clouds. volcanic eruptions or pre eruption activity.section one aircraft identification position time flight level or altitude next position and time over ensuing significant point .section two eta and endurance .section three air temperature wind direction and speed turbulence icing conditions and humidity if available exemple 413 May trigger a sigmet message.

Question 169-38 : A special air report must be made whenever an aircraft encounters a ?

Volcanic ash cloud

Ecqb03 july 2016 exemple 417 Volcanic ash cloud.

Question 169-39 : Which of the following documents should contain forecats for the location and level of clear air turbulence cat ?

Sigmet

Ecqb03 july 2016 exemple 421 Sigmet.

Question 169-40 : What is the defined upper level of the ws wind shear activity in the following message . mod ws apch rwy18 fcst= ?

1600 ft above runway level

Revised ecqb03 july 2016 ..icao annex 3.7 4 wind shear warnings and alerts.7 4 1 wind shear warnings shall give concise information of the observed or expected existence of wind shear whichcould adversely affect aircraft on the approach path or take off path or during circling approach between runway level and 500 m 1 600 ft above that level and aircraft on the runway during the landing roll or take off run the warnings shall be prepared and disseminated for aerodromes where wind shear is considered a factor in accordance with local arrangements with the appropriate ats authority and operators concerned and by the meteorological office designated to provide service for the aerodrome or disseminated directly from automated ground based wind shear remote sensing or detection equipment referred to in 7 6 2 a and b where local topography has been shown to produce significant wind shears at heights in excess of 500 m 1 600 ft above runway level then 500 m 1 600 ft shall not be considered restrictive exemple 425 1600 ft above runway level.


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