Most tornadoes have a speed of movement that usually ranges from ? [ MCQ aircraft ]

Question 158-1 : 20 to 40 knots 100 to 140 knots 30 to 70 knots 120 to 180 knots

Which of the following statements regarding the development of valley ?

Question 158-2 : 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

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

Question 158-3 : 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

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

Question 158-4 : 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

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

Question 158-5 : Moderate light severe violent

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

Question 158-6 : 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

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

Question 158-7 : 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

Orographic thunderstorms may occur ?

Question 158-8 : 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

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

Question 158-9 : 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

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

Question 158-10 : 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

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

Question 158-11 : 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

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

Question 158-12 : Bordeaux zurich frankfurt madrid helsinki copenhagen shannon stockholm

Compared to a microburst a macroburst ?

Question 158-13 : Affects a larger area occurs over a shorter time period has an updraft is free of rain

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

Question 158-14 : 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

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

Question 158-15 : 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

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

Question 158-16 : 1 and 2 are incorrect 1 and 2 are correct 1 is correct 2 is incorrect 1 is incorrect 2 is correct

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

Question 158-17 : 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

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

Question 158-18 : 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

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

Question 158-19 : 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

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

Question 158-20 : Hamburg stockholm zurich madrid zurich hamburg zurich vienna

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

Question 158-21 : Scattered thunderstorms prolonged severe turbulence and icing throughout the flight cat for the first half of the flight flight largely in cloud no turbulence

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

Question 158-22 : Shannon hamburg zurich rome rome berlin zurich athens

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

Question 158-23 : Fl 250 fl 380 fl 350 fl 320

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

Question 158-24 : I severe ii severe i severe ii moderate i moderate ii severe i moderate ii light

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

Question 158-25 : 1 2 3 4

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

Question 158-26 : 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

When is the rvr reported at most airports ?

Question 158-27 : 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

How is the direction and speed of upper winds described in forecasts ?

Question 158-28 : The direction is relative to true north and the speed is in knots the direction is relative to magnetic north and the speed is in knots the direction is relative to magnetic north and the speed is in miles per hour the direction is relative to true north and the speed is in miles per hour

What positions are connected by contour lines on a weather chart ?

Question 158-29 : Positions with the same height in a chart of constant pressure positions with the same thickness between two constant pressure levels positions with the same air density positions with the same wind velocity

In which meteorological forecast chart is information about cat regions found ?

Question 158-30 : Significant weather chart 24 hour surface forecast 500 hpa chart 300 hpa chart

The isobars drawn on a surface weather chart represent lines of equal pressure ?

Question 158-31 : Reduced to sea level at flight level at height of observatory at a determined density altitude

Which constant pressure altitude chart is standard for fl50 ?

Question 158-32 : 850 hpa 500 hpa 700 hpa 300 hpa

On which of the following aviation weather charts can a pilot most easily find ?

Question 158-33 : Significant weather chart wind / temperature chart surface chart upper air chart

Why are indications about the height of the tropopause not essential for flight ?

Question 158-34 : The tropopause is generally well above the flight level actually flown the meteorological services are unable to provide such a chart the temperatures of the tropical tropopause are always very low and therefore not important the tropopause is always at the same height

In the taf for delhi during the summer for the time of your landing you note ?

Question 158-35 : 60 minutes 120 minutes 10 minutes 20 minutes

How are well separated cb clouds described on the significant weather chart ?

Question 158-36 : Ocnl cb embd cb frq cb isol cb

The cold front is indicated with a number at position . 254 ?

Question 158-37 : N°2 n°3 n°4 n°1

What does the symbol indicate on a significant weather chart . 256 ?

Question 158-38 : The center of a tropopause 'high' where the tropopause is at fl 400 the lower limit of the tropopause the upper limit of significant weather at fl 400 the center of a high pressure area at 400 hpa

Which typical weather situation is shown on the weather chart spacing of the ?

Question 158-39 : Flat pressure pattern cutting wind west wind condition warm south wind condition foehn

Which of the following weather reports is a warning of conditions that could be ?

Question 158-40 : Sigmet atis speci taf