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The wind at 500ft above ground is 290/15kt and at the same position at 600ft ? [ Formation assignment ]

Question 165-1 : Moderate vertical wind shear severe horizontal wind shear gradual horizontal wind shear severe low level turbulence

Cqb15 august 2011 exemple 265 Moderate vertical wind shear.Moderate vertical wind shear.

Imagine an aircraft during approach to an airfield which is located in a basin ?

Question 165-2 : While approaching the airfield in the early morning after a short period of bumpiness the engines of the aircraft will deliver more thrust after breaking through the inversion layer if the pilot does not intervene while approaching the airfield shortly before sunrise the pilot has to consider turbulence because at first lift will be decreased due to katabatic winds and after breaking through a valley inversion layer lift is likely to improve due to anabatic wind while approaching the airfield in the late evening hours without the pilot's intervention the engines of the aircraft are most likely to provide less thrust after breaking through the inversion layer while approaching the airfield in the early morning hours these conditions apply for the possibility of a marked valley inversion which has to be considered as a potential flight hazard due to a decreased lift after breaking through the inversion layer

Cqb15 august 2011 exemple 269 While approaching the airfield in the early morning, after a short period of bumpiness the engines of the aircraft will deliver more thrust after breaking through the inversion layer if the pilot does not intervene.While approaching the airfield in the early morning, after a short period of bumpiness the engines of the aircraft will deliver more thrust after breaking through the inversion layer if the pilot does not intervene.

Mark the statement most reasonable regarding a valley inversion ?

Question 165-3 : Over night cool dense air as a result of radiation cooling will descend along the mountain slopes into the basin and lead to the development of a valley inversion if the incident solar radiation is non uniform because of orographic conditions the development of a valley inversion is very likely during daytime provided that the lee side winds are able to displace the air at the bottom of the basin the foehn effect is the predominant factor in the development of a valley inversion small scale density variations due to turbulent mixing mainly caused by the roughness of rocks are a significant prerequisite for the formation of valley inversions

Cqb15 september 2011 exemple 273 Over night, cool dense air as a result of radiation cooling will descend along the mountain slopes into the basin and lead to the development of a valley inversion.Over night, cool dense air as a result of radiation cooling will descend along the mountain slopes into the basin and lead to the development of a valley inversion.

Which of the following statements is correct concerning the weather in a warm ?

Question 165-4 : Isolated thunderstorms are sometimes possible over continental areas during the summer no thunderstorms can occur in mid and high latitudes thunderstorms may occur only over open sea during the summer isolated air mass thunderstorms are common during all seasons over continental areas

Cqb 15 october 2011 exemple 277 Isolated thunderstorms are sometimes possible over continental areas during the summer.Isolated thunderstorms are sometimes possible over continental areas during the summer.

With which meteorological phenomena are wind shear conditions mostly associated ?

Question 165-5 : Gust fronts low level temperature inversions frontal surfaces gust fronts sea breeze fronts high stratiform clouds strong surface winds coupled with local topography anticyclones light precipitation thunderstorms drizzle conditional instability

Cqb 15 october 2011 exemple 281 Gust fronts, low level temperature inversions, frontal surfaces.Gust fronts, low level temperature inversions, frontal surfaces.

In winter after breaking through a low level inversion during descent and ?

Question 165-6 : Thrust most likely will increase and visibility is likely to deteriorate lift most likely will increase and visibility is likely to improve thrust most likely will decrease and visibility is likely to improve lift most likely will decrease and visibility is likely to deteriorate

Admin .usually when you descend your oat outside air temperature is increasing but when you descend into an inversion layer your oat will start to decrease instead of increasing you would expect an increase in thrust exemple 285 Thrust most likely will increase and visibility is likely to deteriorate.Thrust most likely will increase and visibility is likely to deteriorate.

The presence of ice pellets at the surface is the evidence that ?

Question 165-7 : Temperatures are above freezing at some higher altitudes a cold front has passed there are thunderstorms in the area after take off you can climb to a higher altitude without encountering more than light icing conditions

exemple 289 Temperatures are above freezing at some higher altitudes.Temperatures are above freezing at some higher altitudes.

Mark the correct statement concerning lightning discharge ?

Question 165-8 : While flying through air that is electrically charged the aircraft is likely to become a charge carrier itself and can initiate a lightning discharge the probability of a lightning discharge is reciprocally proportional to the strength of the electric field the aircraft intruded the set of possible effects of a lightning discharge does not include welding of aircraft parts such as joints or bearings because an aircraft acts as a 'faraday's cage' the magnetisation associated with a lightning discharge hardly has an effect on the magnetic compass

exemple 293 While flying through air that is electrically charged the aircraft is likely to become a charge carrier itself and can initiate a lightning discharge.While flying through air that is electrically charged the aircraft is likely to become a charge carrier itself and can initiate a lightning discharge.

Most tornadoes have a life span that lasts for ?

Question 165-9 : A few minutes up to 30 minutes approximately one hour several hours not more than one minute

exemple 297 A few minutes up to 30 minutes.A few minutes up to 30 minutes.

During an ils approach on rwy 33 a northwesterly wind is blowing parallel to ?

Question 165-10 : Without the pilot's intervention the aircraft is likely to fly below the designated glide path with increasing deviation from it without the pilot's intervention the aircraft is likely to fly above the designated glide path with increasing deviation from it a deviation from the glide path will not have to be considered since there is no significant wind shear to be expected without the pilot's intervention the aircraft is likely to fly above the designated glide path with decreasing deviation from it

Admin .the wind is blowing parallel to the runway it's a headwind .you are descending into an increasing headwind wind shear and with constant aispeed and angle of attack this will give a decreasing ground speed you normally have to decrease the rate of descent in order to maintain the glide slope but without intervention you will maintain a rate of descent for a higher ground speed this will result to fly below the designated glide path with increasing deviation from it since the question states is increasing rapidly with height .take care not to understand an increase of wind with an increase of altitude we are talking about wind shear not a standard atmosphere wind exemple 301 Without the pilot's intervention, the aircraft is likely to fly below the designated glide path with increasing deviation from it.Without the pilot's intervention, the aircraft is likely to fly below the designated glide path with increasing deviation from it.

Mark the correct statement concerning the flight through an inversion caused by ?

Question 165-11 : During climb the reduced air density above the inversion layer will cause a certain decrease in the aircraft performance ie lift and thrust and the pilot will experience a sudden improvement of visibility during climb the increased air density above the inversion layer will cause a certain increase in the aircraft performance ie lift and thrust and the pilot will experience a gradual change of the cross wind component during climb the pilot of an aircraft probably will experience a slight deterioration of flight visibility when breaking through the top of the inversion layer and the general aircraft performance will decrease the pilot of an aircraft probably will experience a gradual increase of the cross wind component and a gradual improvement of flight visibility when breaking through the base of the inversion layer during descent

Rencag .temperature falls above the inversion layer so density should increase isn't it ..the question states flight through an inversion not above the inversion layer .below the inversion layer air temperature decreases with height inside the inversion air temperature increases with height exemple 305 During climb, the reduced air density above the inversion layer will cause a certain decrease in the aircraft performance (ie: lift and thrust) and the pilot will experience a sudden improvement of visibility.During climb, the reduced air density above the inversion layer will cause a certain decrease in the aircraft performance (ie: lift and thrust) and the pilot will experience a sudden improvement of visibility.

Clouds will mainly consist of supercooled water droplets when the temperature is ?

Question 165-12 : Between 0°c and 15°c between 5°c and 30°c between 30°c and 40°c below 40°c

exemple 309 Between 0°c and -15°c.Between 0°c and -15°c.

A stormscope is ?

Question 165-13 : An instrument on board an aircraft to detect electrical discharges an instrument to detect wind shear by means of the doppler effect during flight the technical term jargon for a radar scope showing thunderstorms an instrument to measure wind velocity

A stormscope is basically a lightning detector exemple 313 An instrument on board an aircraft to detect electrical discharges.An instrument on board an aircraft to detect electrical discharges.

Most tornadoes have a speed of movement that usually ranges from ?

Question 165-14 : 20 to 40 knots 100 to 140 knots 30 to 70 knots 120 to 180 knots

Take care the question is about the tornadoes forward motion not the wind speed inside the tornadoes .tornado paths range from 100 m to 1 5 km wide and are rarely more than 12 nm long .they can last from several seconds to more than an hour however most don't exceed 10 minutes .most tornadoes travel with an average speed of 30 kt but the speed has been observed to range from almost no motion to 60 kt exemple 317 20 to 40 knots.20 to 40 knots.

Which of the following statements regarding the development of valley ?

Question 165-15 : Valley inversions often are a result of radiation cooling in combination with gravity both affecting the air at the surface of a mountain slope usually a valley inversion is initiated by radiation cooling and anabatic winds which are due to orographic conditions the most important prerequisite for the development of valley inversions is warm air ascending along the mountain slope thus leaving cooler air behind in the bottom of the valley the predominant factor in the development process of valley inversions is the non uniformity of incident solar radiation due to orographic conditions in combination with density variations within the air

Over night cool dense air as a result of radiation cooling will descend by gravity along the mountain slopes into the basin and lead to the development of a valley inversion exemple 321 Valley inversions often are a result of radiation cooling in combination with gravity, both affecting the air at the surface of a mountain slope.Valley inversions often are a result of radiation cooling in combination with gravity, both affecting the air at the surface of a mountain slope.

During the preparation for approach to zurich airport 1416 ft/amsl a pilot ?

Question 165-16 : For wind shear just above the inversion for freezing precipitation below the inversion for fog below the inversion that the performance of the engine will be reduced from inversion level down to ground

Low level temperature inversion can be a safety hazard it can be a significant factor in affecting take off or landing performance information regarding low level temperature inversions should be provided as soon as possible . 646.an inversion will promote vertical wind shear exemple 325 For wind shear just above the inversion.For wind shear just above the inversion.

When flying in mountainous terrain and assuming isa temperatures and strong ?

Question 165-17 : In case of venturi effect the actual altitude of the aircraft is lower than the indicated altitude in case of adiabatic compression of the air the temperature is lower than indicated in case of combined effect of surface friction and adiabatic compression of the air the dynamic pressure is lower than indicated by the altimeter in case of venturi effect the indicated altitude of the aircraft is lower than the actual altitude

With strong winds the mountainous terrain will acts like a wing .you will have a reduced pressure over a hill it acts like a cambered aerofoil in case of venturi effect .in this area of reduced pressure the altimeter will over read it sence a lower pressure it reads a higher altitude than it should . 641.venturi effect static pressure decreased compared to original exemple 329 In case of venturi effect, the actual altitude of the aircraft is lower than the indicated altitude.In case of venturi effect, the actual altitude of the aircraft is lower than the indicated altitude.

What degree of aircraft icing is determined by the following icao description ?

Question 165-18 : Moderate light severe violent

exemple 333 Moderate.Moderate.

Two aircraft are flying simultaneously in level flight at different flight ?

Question 165-19 : Vertical wind shear only vertical and horizontal wind shear horizontal wind shear only no wind shear since the absolute value of the difference in wind velocity per height unit is too small to fit the definition of wind shear at all

Admin . 643.vertical shear is the change of winds with height exemple 337 Vertical wind shear only.Vertical wind shear only.

What is the best way in dealing with thunderstorms associated with a cold front ?

Question 165-20 : Avoidance of embedded cbs by using airborne weather radar flying through the front with maximum speed and perpendicular to the front line in order to minimize the time of hazard exposure flying underneath the cloud base in all cases flying through the upper third of the clouds to prevent the aircraft from being struck by lightning

Ecqb01 june 2013 exemple 341 Avoidance of embedded cbs by using airborne weather radar.Avoidance of embedded cbs by using airborne weather radar.

Orographic thunderstorms may occur ?

Question 165-21 : At any time during day and night almost exclusively during the daylight hours mostly between sunset and 2 a m mostly in the early morning

Ecqb01 june 2013 exemple 345 At any time during day and night.At any time during day and night.

During flight the headwind increases suddenly due to wind shear what initial ?

Question 165-22 : There will be a sudden temporary increase in true air speed none since wind only affects ground speed and drift there will be a sudden temporary decrease in true air speed there will only be a gradual increase in true airspeed until equilibrium is established again

Easa 2014 exemple 349 There will be a sudden temporary increase in true air speed.There will be a sudden temporary increase in true air speed.

During an ils approach on rwy 33 a northwesterly wind is blowing parallel to ?

Question 165-23 : Without the pilot's intervention the aircraft is likely to fly above the designated glide path with increasing deviation from it without the pilot's intervention the aircraft is likely to fly below the designated glide path with increasing deviation from it a deviation from the glide path will not have to be considered since there is no significant wind shear to be expected without the pilot's intervention the aircraft is likely to fly below the designated glide path with decreasing deviation from it

Admin .take care this question is the opposite to an other one which states its speed is increasing rapidly with height .the wind is blowing parallel to the runway it's a headwind .you are descending into a decreasing headwind wind shear and with constant aispeed and angle of attack this will give an increasing ground speed you normally have to increase the rate of descent in order to maintain the glide slope but without intervention you will maintain a rate of descent for a lower ground speed this will result to fly above the designated glide path with increasing deviation from it since the question states is decreasing rapidly with height exemple 353 Without the pilot's intervention, the aircraft is likely to fly above the designated glide path with increasing deviation from it.Without the pilot's intervention, the aircraft is likely to fly above the designated glide path with increasing deviation from it.

Which of the following statements regarding an aircraft being struck by ?

Question 165-24 : The flight crew might have temporary difficulties in determining the current attitude of flight the crew of an aircraft made of conductive material e g metal will generally suffer greater adverse effects due to lightning discharge than the crew of an aircraft made of non conductive composite material though flying through an electric field the aircraft itself is not a charge carrier and therefore it cannot initiate a lightning discharge the dimension of the damage caused by the lightning stroke is reciprocally proportional to the strength of the electric field the aircraft intruded

exemple 357 The flight crew might have temporary difficulties in determining the current attitude of flight.The flight crew might have temporary difficulties in determining the current attitude of flight.

For this question use annex 050 047 .on which of these routes would you not ?

Question 165-25 : Bordeaux zurich frankfurt madrid helsinki copenhagen shannon stockholm

Ecqb03 july 2016 exemple 361 Bordeaux - zurichBordeaux - zurich

Compared to a microburst a macroburst ?

Question 165-26 : Affects a larger area occurs over a shorter time period has an updraft is free of rain

exemple 365 Affects a larger area.Affects a larger area.

An aircraft in straight and level flight may suddenly experience clear air ?

Question 165-27 : Cause abrupt changes in attitude and/or height resulting in injuries to passengers and crew aircraft may be out of control for short period lead to problems with the engine performance as the flow of liquids fuel coolant etc may be altered damage its the control surfaces especially if the aircraft flies at the upper limits of its service ceiling impair the function of its electronics avionics instruments to such an extend that an immediate landing is necessary

Ecqb03 july 2016 exemple 369 Cause abrupt changes in attitude and/or height resulting in injuries to passengers and crew, aircraft may be out of control for short period.Cause abrupt changes in attitude and/or height resulting in injuries to passengers and crew, aircraft may be out of control for short period.

Which of the following statements is correct concerning rotors below the crest ?

Question 165-28 : The wind direction at the lower side of the rotors is opposite to the prevailing wind direction the wind direction at the top of the rotors is opposite to the prevailing wind direction the axis of these rotors is vertical the rotors are always visible by the presence of rotor clouds

Ecqb03 august 2016 exemple 373 The wind direction at the lower side of the rotors is opposite to the prevailing wind direction.The wind direction at the lower side of the rotors is opposite to the prevailing wind direction.

Which of these statements about turbulence are correct or incorrect .1 above ?

Question 165-29 : 1 and 2 are incorrect 1 and 2 are correct 1 is correct 2 is incorrect 1 is incorrect 2 is correct

Ecqb03 august 2016 exemple 377 1 and 2 are incorrect.1 and 2 are incorrect.

If a thunderstorm cb 10 nm ahead is assessed as still being in the mature phase ?

Question 165-30 : He should change heading to circumnavigate the storm he should start a descent in order to pass underneath the storm he should climb above the storm he should cross the storm on the shortest possible way

Ecqb03 august 2016 exemple 381 He should change heading to circumnavigate the storm.He should change heading to circumnavigate the storm.

Which of these statements about turbulence are correct or incorrect .1 severe ?

Question 165-31 : 1 is not correct 2 is correct 1 and 2 are correct 1 and 2 are not correct 1 is correct 2 is not correct

Ecqb03 august 2016 exemple 385 1 is not correct, 2 is correct.1 is not correct, 2 is correct.

Check the correctness of the following statements .1 outside clouds no severe ?

Question 165-32 : 1 is correct 2 is correct 1 is not correct 2 is not correct 1 is not correct 2 is correct 1 is correct 2 is not correct

Ecqb03 august 2016 exemple 389 1) is correct 2) is correct.1) is correct 2) is correct.

On which route of flight would you expect no icing at fl 180 . 401 ?

Question 165-33 : Hamburg stockholm zurich madrid zurich hamburg zurich vienna

Admin .the flight from hamburg to stockholm will be out of cloud and out of area where icing is reported . 458 exemple 393 Hamburg-stockholm.Hamburg-stockholm.

If you are flying from zurich to london at fl 220 what conditions can you ?

Question 165-34 : Scattered thunderstorms prolonged severe turbulence and icing throughout the flight cat for the first half of the flight flight largely in cloud no turbulence

Admin .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 397 Scattered thunderstorms.Scattered thunderstorms.

Which route is free of turbulence at fl 340 . 404 ?

Question 165-35 : Shannon hamburg zurich rome rome berlin zurich athens

Admin . 459.this is the only route that do not cross cat aera n°1 exemple 401 Shannon-hamburgShannon-hamburg

What is the lowest flight level that is forecast to be subject to clear air ?

Question 165-36 : Fl 250 fl 380 fl 350 fl 320

exemple 405 Fl 250.Fl 250.

What is the greatest intensity of turbulence i and icing ii that can be ?

Question 165-37 : I severe ii severe i severe ii moderate i moderate ii severe i moderate ii light

exemple 409 (i) severe, (ii) severe.(i) severe, (ii) severe.

According to icao which symbol indicates danger to an aircraft in flight . 420 ?

Question 165-38 : 1 2 3 4

Admin .icao annex 3 meteorological service for international air navigation . 547 exemple 413 1)1)

What is the relationship between visibility and rvr in homogeneous fog ?

Question 165-39 : The visibility is generally less than the rvr the visibility generally is greater than the rvr the visibility generally is the same as the rvr there is no specific relationship between the two

Admin .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 417 The visibility is generally less than the rvr.The visibility is generally less than the rvr.

When is the rvr reported at most airports ?

Question 165-40 : When the visibility decreases below 1500 m when the visibility decreases below 2000 m when the rvr decreases below 2500 m when the rvr decreases below 2000 m

Admin .annex 3 meteorological service for international air navigation .rvr is reported when visibility is less than 1500 m exemple 421 When the visibility decreases below 1500 m.When the visibility decreases below 1500 m.

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