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Question 167-1 : Select the true statement concerning isobars and wind flow patterns around high pressure and low pressure systems that are shown on a surface weather chart ? [ Formation assignment ]

When the isobars are close together the pressure gradient force is greater and wind velocities are stronger

exemple 267 When the isobars are close together, the pressure gradient force is greater and wind velocities are stronger.

Question 167-2 : What is the wind speed given in a metar report based on ?

The average speed of the previous 10 minutes

exemple 271 The average speed of the previous 10 minutes

Question 167-3 : What are the images of satellites provided daily by the weather service used for ?

To locate fronts in areas with few observation stations

exemple 275 To locate fronts in areas with few observation stations

Question 167-4 : Which constant pressure altitude chart is standard for fl 100 ?

700 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 279 700 hpa.

Question 167-5 : Which constant pressure altitude chart is standard for fl 180 ?

500 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 283 500 hpa.

Question 167-6 : Which constant pressure altitude chart is standard for fl 300 ?

300 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 287 300 hpa.

Question 167-7 : Which constant pressure altitude chart is standard for fl 390 ?

200 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 291 200 hpa.

Question 167-8 : If you are planning a flight at fl 170 which of these upper wind and temperature charts would be nearest your flight level ?

500 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 295 500 hpa.

Question 167-9 : If you are planning a flight at fl 290 which of these upper wind and temperature charts would be nearest your flight level ?

300 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 299 300 hpa.

Question 167-10 : When planning a flight at fl 60 which upper wind and temperature chart would be nearest your flight level ?

850 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 303 850 hpa.

Question 167-11 : When planning a flight at fl 110 which upper wind and temperature chart would be nearest your flight level ?

700 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 307 700 hpa.

Question 167-12 : According to icao which symbol indicates severe icing . 300 ?

1

Admin .icao annex 3 meteorological service for international air navigation . 547 exemple 311 1.

Question 167-13 : According to icao which symbol indicates a tropical revolving storm . 301 ?

Symbol c

Admin .icao annex 3 meteorological service for international air navigation . 547 exemple 315 Symbol c)

Question 167-14 : According to icao which symbol indicates widespread haze . 301 ?

Symbol b

Admin .icao annex 3 meteorological service for international air navigation . 547 exemple 319 Symbol b)

Question 167-15 : According to icao which symbol indicates a severe line squall . 301 ?

Symbol a

Admin .icao annex 3 meteorological service for international air navigation . 547 exemple 323 Symbol a)

Question 167-16 : What does the term sigmet signify ?

A sigmet is a warning of dangerous meteorological conditions

Admin .icao annexe 3 met services .sigmet or significant meteorological information is a weather advisory that contains meteorological information concerning the safety of all aircraft .the following are examples of weather phenomena that may be described in a sigmet . thunderstorms. cyclones tropical revolving storms . severe turbulence. severe icing. severe mountain waves. dust or sand storms. volcanic ash exemple 327 A sigmet is a warning of dangerous meteorological conditions.

Question 167-17 : What does the term trend signify ?

It is a landing forecast added to the actual weather report

Admin .icao annex 3 meteorological service for international air navigation.6 3 landing forecasts.6 3 1 a landing forecast shall be prepared by the meteorological office designated by the meteorological authority concerned as determined by regional air navigation agreement such forecasts are intended to meet the requirements of local users and of aircraft within about one hour's flying time from the aerodrome .6 3 2 landing forecasts shall be prepared in the form of a trend forecast .6 3 3 a trend forecast shall consist of a concise statement of the expected significant changes in the meteorological conditions at that aerodrome to be appended to a local routine or local special report or a metar or speci .the period of validity of a trend forecast shall be 2 hours from the time of the report which forms part of the landing forecast exemple 331 It is a landing forecast added to the actual weather report.

Question 167-18 : Which of these statements best describes the weather most likely to be experienced at 1500 utc .taf lszh 2113/2122 22018g35kt 9999 sct012 bkn030 becmg 2113/2115 25025g45kt tempo 2117/2120 4000 +shra bkn025tcu becmg 2120/2122 25015kt tx18/2115z tn16/2118z = ?

Visibility 10 kilometres or more main cloudbase 3000 feet wind 250° temperature 18°c

Admin .in this question the base of the lowest cloud is 1200 ft but there is less than half cover so the main cloudbase is 3000 ft .becmg becoming indicates a change to forecast conditions is expected to occur slowly within the period designated in the time group immediately following the heading .in this time group of four digits the first two indicate the beginning hour and the last two represent the ending hour during which the change will take place .the duration of this change is normally about 2 hours the elements included in the becmg line will supercede some of the previous taf groups but it is possible all the groups may change .any group omitted in the becmg line will be the same during the becmg period as indicated in the main taf line .for information tx18/2115z mean temperature will be 18°c at 1500 utc .tn16/2118z mean temperature will be 16°c at 1800 utc exemple 335 Visibility 10 kilometres or more, main cloudbase 3000 feet, wind 250°, temperature 18°c.

Question 167-19 : Which of the following weather reports could be in accordance with the regulations abbreviated to 'cavok' ?

15003kt 9999 bkn100 17/11 q1024 nosig =

Admin .icao annex 3 .when the following conditions occur simultaneously at the time of observation we can use the abbreviation of ceiling and visibility ok cavok .1 no cloud below 5000 ft above airfield level or minimum sector altitude whichever is higher .2 no cb or tcu at any height.3 visibility 10 km or more.4 no significant weather.for this statement .29010kt 9999 st045tcu 16/12 q1015 reshra nosig=.tcu can't be cavok.for this statement .04012g26kt 9999 bkn030 11/07 q1024 nosig=.bkn030 can't be cavok.for this statement .24009kt 6000 ra sct010 ovc030 12/11 q1007 tempo 4000=.6000 sct010 ovc030 can't be cavok exemple 339 15003kt 9999 bkn100 17/11 q1024 nosig =

Question 167-20 : Which of the following statements is an interpretation of the metar .25020g38kt 1200 +tsgr bkn006 bkn015cb 23/18 q1016 becmg nsw = ?

Gusts of 38 knots thunderstorm with heavy hail dew point 18°c

exemple 343 Gusts of 38 knots, thunderstorm with heavy hail, dew point 18°c.

Question 167-21 : Which of the following statements is an interpretation of the sigmet .lsas sigmet 2 valid 030700/031100 lszh switzerland fir/uir mod to sev cat fcst n of alps btn fl 260/380 stnr intsf= ?

Moderate to severe clear air turbulence to be expected north of the alps intensity increasing danger zone between fl 260 and fl 380

exemple 347 Moderate to severe clear air turbulence to be expected north of the alps. intensity increasing. danger zone between fl 260 and fl 380.

Question 167-22 : Which of the following statements is an interpretation of the sigmet .lggg sigmet 3 valid 121420/121820 lgat athinai fir embd ts obs and fcst in w part mov e nc = ?

Thunderstorms must be expected in the western part of the athens fir the thunderstorm zone is moving east intensity is constant

exemple 351 Thunderstorms must be expected in the western part of the athens fir. the thunderstorm zone is moving east. intensity is constant

Question 167-23 : Compare the following taf and volmet reports for nice .taf 240600z 240716 vrb02kt cavok =.0920z 13012kt 8000 sct040cb bkn100 20/18 q1015 tempo ts =.what can be concluded from the differences between the two reports ?

That the weather at nice is clearly more volatile than the taf could have predicted earlier in the morning

Admin .volmet is a defined abbreviation 'meteorological information for aircraft in flight' and the origin is from the french 'vol' flight and 'met' as an abbreviation for meteorology volmet is a broadcast or data link service of meteorological information for aircraft in flight and is provided for in annex 3 .a volmet is updated along the day a 24h taf is not .this explains the difference between the forecasted and actual weather at 0920 utc exemple 355 That the weather at nice is clearly more volatile than the taf could have predicted earlier in the morning.

Question 167-24 : Runway visual range rvr is ?

Usually better than visibility

Admin .rvr is reported when visibility is less than 1500 m .the methods for measuring rvr and prevailing visibility are quite different rvr is measured in a specific direction usually using transmissiometers while the prevailing visibility will be the average and if less than 1500 m the minimum value in a specific direction this means that there can be no direct comparison and rvr is likely to be the same as or greater than the lowest reported value of prevailing visibility exemple 359 Usually better than visibility.

Question 167-25 : What information is given on a significant weather chart ?

The significant weather forecast for the time given on the chart

Admin .significant weather charts are published every six hours and predict what the weather situation is for a given time the 09 00z chart would be prepared several hours in advance probably very early in the morning it would indicate for instance the position of a cold front at 09 00z and show its direction and speed of movement with this information you could work out the estimated position of the front at any time between 06 00z and 12 00z so whilst we use it for flights between 06 00z and 12 00z it only shows the weather situation at 09 00z exemple 363 The significant weather forecast for the time given on the chart

Question 167-26 : A pilot is warned of severe icing at certain flight levels by information supplied in ?

Swc and sigmet

Admin .significant weather chart swc and sigmet warned a pilot of severe icing at certain flight levels . significant weather chart uses symbols for moderate and severe aircraft icing . 571. sigmet or significant meteorological information is a weather advisory that contains meteorological information concerning the safety of all aircraft .the following are examples of weather phenomena that may be described in a sigmet . thunderstorms. cyclones tropical revolving storms . severe turbulence. severe icing. severe mountain waves. dust or sand storms. volcanic ash exemple 367 Swc and sigmet.

Question 167-27 : An isohypse of the 500 hpa pressure surface is labelled with the number 552 this means that for all points on the isohypse the ?

Topography is 552 decameters above msl

Admin .topography refers to the shape of any surface here the surface is a pressure level of 500 hpa exemple 371 Topography is 552 decameters above msl.

Question 167-28 : The validity of a taf is ?

Stated in the taf

exemple 375 Stated in the taf.

Question 167-29 : Atis information contains ?

Meteorological and operational information

exemple 379 Meteorological and operational information

Question 167-30 : If cavok is reported then ?

No low drifting snow is present

Admin .icao annex 3 .when the following conditions occur simultaneously at the time of observation we can use the abbreviation of ceiling and visibility ok cavok .1 no cloud below 5000 ft above airfield level or minimum sector altitude whichever is higher .2 no cb or tcu at any height.3 visibility 10 km or more.4 no significant weather.wind shear is not reported in a metar and wind shear not 'weather' clouds can be present but above 5000 ft or minimum sector altitude whichever is higher .cb's is wrong because there may be no cb's regardless of the height .low drifting snow is a significant weather but the answer states no low drifting snow is present so it's the right answer .note highest minimum sector altitude is defined in icao pans ops as the lowest altitude which may be used under emergency conditions which will provide a minimum clearance of 300 metres 1000 ft above all objects located in an area contained within a sector of a circle of 46 km 25 nautical miles radius centred on a radio aid to navigation .low drifting snow examples . 2543. 2544 exemple 383 No low drifting snow is present.

Question 167-31 : Runway visual range can be reported in ?

A metar

exemple 387 A metar.

Question 167-32 : Sigmet information is issued as a warning for significant weather to ?

All aircraft

exemple 391 All aircraft

Question 167-33 : The wind direction in a metar is measured relative to ?

True north

exemple 395 True north.

Question 167-34 : A speci is ?

An aviation special weather report

exemple 399 An aviation special weather report

Question 167-35 : On the european continent metars of main airports are compiled and distributed with intervals of ?

0 5 hour

exemple 403 0.5 hour.

Question 167-36 : The rvr as reported in a metar is always the ?

Value representative of the touchdown zone

exemple 407 Value representative of the touchdown zone.

Question 167-37 : The cloud base reported in the metar is the height above ?

Airfield level

exemple 411 Airfield level.

Question 167-38 : What values are used for the forecasted wind at higher levels ?

Direction relative to true north and speed in knots

exemple 415 Direction relative to true north and speed in knots.

Question 167-39 : In what hpa range is an upper weather chart for fl 340 situated ?

300 200 hpa

Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 419 300 - 200 hpa.

Question 167-40 : Isobars on a surface chart are lines of equal ?

Qff

exemple 423 Qff


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