Mark the correct statement concerning lightning discharge ?
Certification > weather
Most tornadoes have a life span that lasts for ?
During an ILS approach on RWY 33 a northwesterly wind is blowing parallel to the runway Its speed is increasing rapidly with height while its change in direction is negligible What has the pilot to ?
Mark correct statement concerning flight through an inversion caused subsidence During climb reduced air density above inversion layer will cause a certain decrease in aircraft performance (ie lift thrust) the pilot will experience a sudden improvement of visibility. rencag temperature falls above inversion layer so density should increase isn't it? the question states flight through an inversion not above inversion layer below inversion layer air temperature decreases with height inside inversion air temperature increases with height. 
Clouds will mainly consist of supercooled water droplets when temperature During climb reduced air density above inversion layer will cause a certain decrease in aircraft performance (ie lift thrust) the pilot will experience a sudden improvement of visibility. rencag temperature falls above inversion layer so density should increase isn't it? the question states flight through an inversion not above inversion layer below inversion layer air temperature decreases with height inside inversion air temperature increases with height. 
A stormscope An instrument on board an aircraft to detect electrical discharges. A stormscope basically a lightning detector. 
Most tornadoes have a speed of movement that usually ranges from An instrument on board an aircraft to detect electrical discharges. Take care! the question about tornadoes forward motion not wind speed inside tornadoes tornado paths range from 100 m to 1 5 km wide 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 speed has been observed to range from almost no motion to 60 kt. Question 149-8
Which of following statements regarding development of valley inversions correct Valley inversions often are a result of radiation cooling in combination with gravity both affecting air at surface of a mountain slope. Over night cool dense air as a result of radiation cooling will descend gravity along mountain slopes into basin lead to development of a valley inversion. Question 149-9
During preparation approach to zurich airport 1416 ft/amsl a pilot hears following on atis 'inversion warning inversion of 12°c between 1900 ft and 2300 ft altitude' this indicates that pilot should be prepared For wind shear just above inversion. 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 an inversion will promote vertical wind shear. Question 149-10
When flying in mountainous terrain and assuming isa temperatures and strong winds which of following correct In case of venturi effect actual altitude of aircraft lower than indicated altitude. With strong winds 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 altimeter will over read (it sence a lower pressure it reads a higher altitude than it should) venturi effect (static pressure decreased compared to original). Question 149-11
What degree of aircraft icing determined the following icao description 'conditions in which change of heading and/or altitude may be considered desirable' In case of venturi effect actual altitude of aircraft lower than indicated altitude. With strong winds 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 altimeter will over read (it sence a lower pressure it reads a higher altitude than it should) venturi effect (static pressure decreased compared to original). Question 149-12
Two aircraft are flying simultaneously in level flight at different flight levels on opposite tracks overhead a given position aircraft a flying at fl 070 experiences a 30 kt headwind aircraft b flying at fl 060 experiences a 20 kt headwindnone of aircraft experiences cross wind this wind condition will be referred to as Vertical wind shear only. vertical shear the change of winds with height. Question 149-13
What the best way in dealing with thunderstorms associated with a cold front Avoidance of embedded cbs using airborne weather radar. vertical shear the change of winds with height. Question 149-14
Orographic thunderstorms may occur At any time during day night. vertical shear the change of winds with height. Question 149-15
During flight headwind increases suddenly due to wind shear what initial effect does that have on true airspeed There will be a sudden temporary increase in true air speed. vertical shear the change of winds with height. Question 149-16
During an ils approach on rwy 33 a northwesterly wind blowing parallel to runway its speed decreasing rapidly with height while its change in direction negligible what has pilot to be aware of with respect to wind shear and glide path no autopilot engaged Without pilot's intervention aircraft likely to fly above designated glide path with increasing deviation from it. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-17
Which of following statements regarding an aircraft being struck lightning true The flight crew might have temporary difficulties in determining current attitude of flight. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-18
for this question use annex 050 047 on which of these routes would you not need to worry about icing at fl 180 393 The flight crew might have temporary difficulties in determining current attitude of flight. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-19
Compared to a microburst a macroburst Affects a larger area. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-20
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 crew aircraft may be out of control short period. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-21
Which of following statements correct concerning rotors below crest of a mountain wave The wind direction at lower side of rotors opposite to prevailing wind direction. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-22
Which of these statements about turbulence are correct or incorrect 1 above tropopause risk of cat zero 2 convective turbulence always indicated convective clouds The wind direction at lower side of rotors opposite to prevailing wind direction. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-23
If a thunderstorm cb 10 nm ahead assessed as still being in mature phase what should a pilot of a light aircraft do He should change heading to circumnavigate storm. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-24
Which of these statements about turbulence are correct or incorrect 1 severe cat may be expected in core of a jet stream2 at 500 ft/agl mechanical turbulence does occur more often than at 5000 ft/agl not correct 2 correct. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-25
Check correctness of following statements 1 outside clouds no severe aircraft icing can occur2 hoar frost consists of ice crystals formed on a surface sublimation ) correct 2) correct. take care! this question the opposite to an other one which states its speed increasing rapidly with height the wind blowing parallel to runway it's a headwind you are descending into a decreasing headwind (wind shear) with constant aispeed angle of attack this will give an increasing ground speed you normally have to increase rate of descent in order to maintain glide slope but without intervention you will maintain a rate of descent a lower ground speed this will result to fly above designated glide path with increasing deviation from it since question states is decreasing rapidly with height. Question 149-26
On which route of flight would you expect no icing at fl 180 401 ) correct 2) correct. the flight from hamburg to stockholm will be out of cloud out of area where icing reported . Question 149-27
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 turbulence only go up to fl150. Question 149-28
Which route free of turbulence at fl 340 404 Scattered thunderstorms. this the only route that do not cross cat aera n°1. Question 149-29
What the lowest flight level that forecast to be subject to clear air turbulence on route from valencia to charleston 405 Scattered thunderstorms. this the only route that do not cross cat aera n°1. Question 149-30
What the greatest intensity of turbulence i and icing ii that can be expected on route from valencia to charleston at fl 330 407 (i) severe (ii) severe. this the only route that do not cross cat aera n°1. Question 149-31
According to icao which symbol indicates danger to an aircraft in flight 420 (i) severe (ii) severe. icao annex 3 meteorological service international air navigation . Question 149-32
What the relationship between visibility and rvr in homogeneous fog The visibility generally less than rvr. the methods measuring rvr prevailing visibility are quite different rvr measured in a specific direction usually using transmissiometers while prevailing visibility will be average and if less than 1500 m minimum value in a specific direction this means that there can be no direct comparison rvr likely to be same as or greater than lowest reported value of prevailing visibility. Question 149-33
When the rvr reported at most airports When visibility decreases below 5 m. annex 3 meteorological service international air navigation rvr reported when visibility less than 1500 m. Question 149-34
How the direction and speed of upper winds described in forecasts The direction relative to true north the speed in knots. annex 3 meteorological service international air navigation rvr reported when visibility less than 1500 m. Question 149-35
What positions are connected contour lines on a weather chart Positions with same height in a chart of constant pressure. annex 3 meteorological service international air navigation rvr reported when visibility less than 1500 m. Question 149-36
In which meteorological forecast chart information about cat regions found Significant weather chart. cat areas on a significant weather chart (swc) example cat n°2 you will encountered moderate turbulence between fl220 to 400. Question 149-37
The isobars drawn on a surface weather chart represent lines of equal pressure Reduced to sea level. cat areas on a significant weather chart (swc) example cat n°2 you will encountered moderate turbulence between fl220 to 400. Question 149-38
Which constant pressure altitude chart standard fl50 Reduced to sea level. there a few questions in exam that take information directly from that table below write these down on a sticky have them on 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 figure it out the decrease of 1hpa/27ft only applicable at lower levels of troposphere as you go up air pressure decreases change of height per 1 hpa increases (at msl 1hpa/27ft at fl180 it's 50ft/hpa at fl390 it's 105ft/hpa). Question 149-39
On which of following aviation weather charts can a pilot most easily find a jetstream Significant weather chart. the large black lines are jetstream. Question 149-40
Why are indications about height of tropopause not essential flight documentation in tropics The tropopause generally well above flight level actually flown. the large black lines are jetstream.
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