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Question 179-1 : Which of the following statements regarding an aircraft being struck by lightning is true ? [ Practice protocol ]

The flight crew might have temporary difficulties in determining the current attitude of flight.

exemple 279 The flight crew might have temporary difficulties in determining the current attitude of flight.

Question 179-2 : For this question, use annex 050 047..on which of these routes would you not need to worry about icing at fl 180.. 393 ?

Bordeaux zurich

Ecqb03 july 2016 exemple 283 Bordeaux - zurich

Question 179-3 : Compared to a microburst, a macroburst ?

Affects a larger area.

exemple 287 Affects a larger area.

Question 179-4 : An aircraft in straight and level flight may suddenly experience clear air turbulence cat which may... ?

Cause abrupt changes in attitude and/or height resulting in injuries to passengers and crew, aircraft may be out of control for short period.

Ecqb03 july 2016 exemple 291 Cause abrupt changes in attitude and/or height resulting in injuries to passengers and crew, aircraft may be out of control for short period.

Question 179-5 : Which of the following statements is correct concerning rotors below the crest of a mountain wave ?

The wind direction at the lower side of the rotors is opposite to the prevailing wind direction.

Ecqb03, august 2016 exemple 295 The wind direction at the lower side of the rotors is opposite to the prevailing wind direction.

Question 179-6 : Which of these statements about turbulence are correct or incorrect.1 above the tropopause the risk of cat is zero..2 convective turbulence is always indicated by convective clouds ?

1 and 2 are incorrect.

Ecqb03, august 2016 exemple 299 1 and 2 are incorrect.

Question 179-7 : If a thunderstorm cb 10 nm ahead is assessed as still being in the mature phase, what should a pilot of a light aircraft do ?

He should change heading to circumnavigate the storm.

Ecqb03, august 2016 exemple 303 He should change heading to circumnavigate the storm.

Question 179-8 : Which of these statements about turbulence are correct or incorrect.1 severe cat may be expected in the core of a jet stream.2 at 500 ft/agl mechanical turbulence does occur more often than at 5000 ft/agl ?

1 is not correct, 2 is correct.

Ecqb03, august 2016 exemple 307 1 is not correct, 2 is correct.

Question 179-9 : Check the correctness of the following statements.1 outside clouds no severe aircraft icing can occur.2 hoar frost consists of ice crystals formed on a surface by sublimation ?

1 is correct 2 is correct.

Ecqb03, august 2016 exemple 311 1) is correct 2) is correct.

Question 179-10 : On which route of flight would you expect no icing at fl 180. 401 ?

Hamburg stockholm.

.the flight from hamburg to stockholm will be out of cloud and out of area where icing is reported. 458 exemple 315 Hamburg-stockholm.

Question 179-11 : If you are flying from zurich to london at fl 220, what conditions can you expect at cruising altitude. 402 ?

Scattered thunderstorms.

.you have embedded cbs, from below fl100 chart goes from fl100 to fl450 up to fl280..icing and turbulence only go up to fl150. exemple 319 Scattered thunderstorms.

Question 179-12 : Which route is free of turbulence at fl 340. 404 ?

Shannon hamburg

. 459.this is the only route that do not cross cat aera n°1. exemple 323 Shannon-hamburg

Question 179-13 : What is the lowest flight level that is forecast to be subject to clear air turbulence on the route from valencia to charleston. 405 ?

Fl 250.

exemple 327 Fl 250.

Question 179-14 : What is the greatest intensity of turbulence i and icing ii that can be expected on the route from valencia to charleston at fl 330. 407 ?

I severe, ii severe.

exemple 331 (i) severe, (ii) severe.

Question 179-15 : According to icao, which symbol indicates danger to an aircraft in flight. 420 ?

1

.icao annex 3 meteorological service for international air navigation. 547 exemple 335 1)

Question 179-16 : What is the relationship between visibility and rvr in homogeneous fog ?

The visibility is generally less than the rvr.

.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 339 The visibility is generally less than the rvr.

Question 179-17 : When is the rvr reported at most airports ?

When the visibility decreases below 1500 m.

.annex 3 meteorological service for international air navigation.rvr is reported when visibility is less than 1500 m. exemple 343 When the visibility decreases below 1500 m.

Question 179-18 : How is the direction and speed of upper winds described in forecasts ?

The direction is relative to true north and the speed is in knots.

exemple 347 The direction is relative to true north and the speed is in knots.

Question 179-19 : What positions are connected by contour lines on a weather chart ?

Positions with the same height in a chart of constant pressure.

exemple 351 Positions with the same height in a chart of constant pressure.

Question 179-20 : In which meteorological forecast chart is information about cat regions found ?

Significant weather chart.

. 522.cat areas on a significant weather chart swc..example for cat n°2, you will encountered moderate turbulence between fl220 to 400. exemple 355 Significant weather chart.

Question 179-21 : The isobars drawn on a surface weather chart represent lines of equal pressure ?

Reduced to sea level.

exemple 359 Reduced to sea level.

Question 179-22 : Which constant pressure altitude chart is standard for fl50 ?

850 hpa.

.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 363 850 hpa.

Question 179-23 : On which of the following aviation weather charts can a pilot most easily find a jetstream ?

Significant weather chart.

. 522.the large black lines are jetstreams. exemple 367 Significant weather chart.

Question 179-24 : Why are indications about the height of the tropopause not essential for flight documentation in the tropics ?

The tropopause is generally well above the flight level actually flown.

exemple 371 The tropopause is generally well above the flight level actually flown.

Question 179-25 : In the taf for delhi, during the summer, for the time of your landing you note tempo ts..what is the maximum time this deterioration in weather can last in anyone instance ?

60 minutes.

.the change indicator 'tempo' and the associated time group should be used to describe expected frequent or infrequent temporary fluctuations in the meteorological conditions which reach or pass specified threshold values and last for a period of less than one hour in each instance and, in the aggregate, cover less than one half of the forecast period during which the fluctuations are expected to occur. exemple 375 60 minutes.

Question 179-26 : How are well separated cb clouds described on the significant weather chart ?

Ocnl cb.

.it comes from annex 3 meteorological service for international air navigation, appendix 6. 511 exemple 379 Ocnl cb.

Question 179-27 : The cold front is indicated with a number at position. 254 ?

N°2.

exemple 383 N°2.

Question 179-28 : What does the symbol indicate on a significant weather chart. 256 ?

The center of a tropopause 'high', where the tropopause is at fl 400.

exemple 387 The center of a tropopause 'high', where the tropopause is at fl 400.

Question 179-29 : Which typical weather situation is shown on the weather chart spacing of the isobars 5 hpa. 257 ?

Flat pressure pattern.

.isobars are well spaced. we have large pools areas, the pressure pattern is very flat. exemple 391 Flat pressure pattern.

Question 179-30 : Which of the following weather reports is a warning of conditions that could be potentially hazardous to aircraft in flight ?

Sigmet.

.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 395 Sigmet.

Question 179-31 : In which of the following circumstances is a sigmet issued ?

Severe mountain waves.

.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 399 Severe mountain waves.

Question 179-32 : Does the following report make sense. metar lszh 182320z vrb02kt 5000 mifg 02/02 q1015 nosig ?

The report is possible, because shallow fog is defined as a thin layer of fog below eye level.

.mi shallow fog , bc patches of , pr partial are only used with fg fog..icao annex 3. 4.4 present weather.mi less than 2 m 6 ft above ground level...the answer the report is possible, because shallow fog is defined as a thin layer of fog below eye level is an acceptable definition. exemple 403 The report is possible, because shallow fog is defined as a thin layer of fog below eye level.

Question 179-33 : You receive the following metar. lsgg 120750z 00000kt 0300 r05/0700n fg vv001 m02/m02 q1014 nosig =.what will be the rvr at 0900 utc ?

The rvr is unknown, because the nosig does not refer to rvr.

.geneva metar, valid on the 12th day of the month at 07h50 utc, no wind, runway 05, visbility 700m no distinct tendency , fog, vertical visibility, temperature 2°c and dew point 2°c, qnh 1014, no change is expected...icao annex 3.the trend forecast, at the end of the metar, shall indicate significant changes in respect of one or more of the elements surface wind, visibility, weather and clouds. only those elements shall be included for which a significant change is expected. however, in the case of significant changes in respect of cloud, all cloud groups, including layers or masses not expected to change, shall be indicated. in the case of a significant change in visibility, the phenomenon causing the reduction of visibility shall also be indicated. when no change is expected to occur, this shall be indicated by the term nosig. exemple 407 The rvr is unknown, because the “nosig” does not refer to rvr.

Question 179-34 : What positions are connected by isobars on the surface weather chart ?

Positions with the same air pressure at a given level.

exemple 411 Positions with the same air pressure at a given level.

Question 179-35 : What is a trend forecast ?

A landing forecast appended to metar/speci, valid for 2 hours

exemple 415 A landing forecast appended to metar/speci, valid for 2 hours

Question 179-36 : What does the expression 'broken bkn ' mean ?

5 7 eights of the sky is cloud covered.

exemple 419 5-7 eights of the sky is cloud covered.

Question 179-37 : What does the abbreviation 'nosig' mean ?

No significant changes.

exemple 423 No significant changes.

Question 179-38 : In which weather report would you expect to find information about icing conditions on the runway ?

Metar

exemple 427 Metar

Question 179-39 : In which of the following 1850 utc metar reports, is the probability of fog formation, in the coming night, the highest ?

Vrb01kt 8000 sct250 11/10 q1028 becmg 3000 br =

.light wind below 5 kt , little or no cloud clear night , only one degree between temperature and dew point..visibilty will fall from 8000 m to 3000 m and br mist indicates moist air..this conditions will lead to the formation of radiation fog moist air over land with heat loss from the ground on clear nights. exemple 431 Vrb01kt 8000 sct250 11/10 q1028 becmg 3000 br =

Question 179-40 : Which of the following extracts of weather reports could be, in accordance with the regulations, abbreviated to 'cavok'. msa minus airport elevation equals lszb 10000 ft, lszh 8000 ft, lsgg 12000 ft, lfsb 6000 ft ?

Lsgg 22003kt 9999 sct120 bkn280 09/08 q1026 becmg 5000 br =

.icao annex 3, amendment 74..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..lszb and lszh have cloud below minimum sector altitude msa. furthermore, lszh has cumulonimbus aroud ts..lfsb has visibility less than 10 km..lsgg meets all the conditions of cavok...note highest minimum sector altitude is defined in icao pans ops, part 1 definitions, 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. exemple 435 Lsgg 22003kt 9999 sct120 bkn280 09/08 q1026 becmg 5000 br =


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