MCQ > aircraft : Which statement does correspond to the definition of severe turbulence ?

Question 150-1 : Aircraft may be out of control for short periods occupants are forced violently against seat belts loose objects are tossed about difficulty in walking occupants feel strain against seat belts loose objects move about aircraft gets out of control and crashes aircraft will be damaged and an emergency landing will be absolutely necessary

What is the lowest visibility forecast for approach into geneva eta 1200 utc ?

Question 150-2 : 8 km 8 nm 6 nm 10 km

Which thunderstorms generally produce the most severe conditions such as heavy ?

Question 150-3 : Squall line thunderstorms warm front thunderstorms nocturnal air mass thunderstorms daytime air mass thunderstorms

What visibility is most likely to be experienced during an approach into madrid ?

Question 150-4 : 10 kilometres or more 8000 metres 6000 metres 4000 metres

What is the lowest visibility that may be expected during an approach into ?

Question 150-5 : 4 km 10 km or more 7 km 6000 m

In which squares are conditions most likely to cause the occurrence of low ?

Question 150-6 : 3 a and 3 c 3 a and 3 b 3 b and 3 c 3 b and 3 d

For an aircraft making an approach to an airfield which is not situated near ?

Question 150-7 : Low level wind shear radiation fog rotor streaming clear air turbulence cat

The occurrence of freezing rain at fl 60 is most likely in square . 347 ?

Question 150-8 : 3c 2d 3b 2a

For an aircraft at fl 40 approaching the front square 3c from the direction of ?

Question 150-9 : Clear ice accretion to the airframe severe turbulence associated with cb severe turbulence and wind shear severe downdrafts from subsiding air

What are the characteristics of rime ice and what conditions are most ?

Question 150-10 : Milky granular appearance forming on leading edges and accumulating forward into the air stream stratiform clouds at temperatures of 10°c to 20°c are most conducive to its formation opaque rough appearance tending to spread back over an aircraft surface most frequently encountered in cumuliform clouds at temperatures slightly below freezing smooth appearance and builds forward from leading surfaces into a sharp edge most common in cumuliform clouds at temperatures of 20°c to 25°c transparent appearance and tendency to take the shape of the surface on which it freezes stratiform clouds and temperatures only slightly below freezing promote its formation

What intensity and type of aircraft icing is likely to occur at fl 100 in a ?

Question 150-11 : Moderate to severe icing due to clear ice light icing due to rime ice moderate to severe icing due to rime ice light icing due to clear ice

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

Question 150-12 : Temperatures are above freezing at some higher altitudes a cold front has passed there are thunderstorms in the area after take offyou can climb to a higher altitude without encountering more than light icing conditions

At the surface the lifetime of a typical microburst and the diameter of the ?

Question 150-13 : 1 5 minutes and 4 km 30 40 minutes and 4 km 5 15 minutes and 8 km 5 10 minutes and 12 km

In mature cb's the probability of severe icing according to meteorological ?

Question 150-14 : 0°c to 23°c +5°c to 0°c 23°c to 40°c 40°c to 60°c

In which environment is aircraft structural ice most likely to have the highest ?

Question 150-15 : Freezing rain stratus clouds cirrus clouds snow

An aircraft descends in layered clouds the freezing level is situated at fl 60 ?

Question 150-16 : Between fl 120 and fl 60 between fl 60 and fl 20 between fl 120 and fl 180 at fl 140

According to icao which symbol indicates danger to an aircraft flying according ?

Question 150-17 : Symbol 2 symbol 4 symbol 1 symbol 3

In which of the following situations is the probability for severe ?

Question 150-18 : Advection of maritime cold air over a warm sea surface advection of warm air over a cold land surface advection of continental cold air over a warm land surface advection of maritime warm air over a cold sea surface

In which of these cloud types can icing be virtually ruled out ?

Question 150-19 : Cs as sc ns

According to icao which symbol indicates danger to an aircraft flying according ?

Question 150-20 : Symbol 3 symbol 4 symbol 1 symbol 2

In which conditions would you most likely encounter clear icing and how would ?

Question 150-21 : Cumuliform clouds large water droplets temperatures between 0°c and 15°c appears smooth and tends to spread back over an aircraft wing stratiform clouds small water droplets temperatures between 10°c and 20°c appears granular and tends to accumulate forward into the air stream cumuliform clouds small water droplets temperatures between 20°c and 25°c appears transparent and tends to take the shape of the surface on which it freezes stratiform clouds large water droplets temperatures well below freezing appears opaque and builds forward from leading surface into a sharp edge

A cb with thunderstorm has reached the mature stage which statement is correct ?

Question 150-22 : In temperatures lower than 23°c icing is still possible the freezing level in the whole cloud lies lower than outside the cloud if hail occurs it only occurs in downdrafts severe turbulence occurs in the cloud but hardly ever below the cloud

Which of the following statements is true with regard to mountain waves ?

Question 150-23 : Flight with headwind toward high ground is likely to be more hazardous than flight with tailwind toward high ground mountain waves are not experienced beyond 100 miles downwind from initiating high ground regardless of the height of the ground the absence of cloud over high ground indicates the absence of mountain waves flight with tailwind toward high ground is likely to be more hazardous than flight with headwind toward high ground

The correct statement is ?

Question 150-24 : Airframe icing can occur in clear air haze is a reduction of visibility due to the presence of water vapour mountain waves are always accompanied by rotor clouds above the tropopause no turbulence occurs

Flight from bordeaux to amsterdam eta 2100 utc what is the minimum visibility ?

Question 150-25 : 3 km 5 km 5 nm 6 km

What are the conditions required for the formation of hoar frost ?

Question 150-26 : The temperature of the surface is lower than the dew point of the air and the dew point is lower than 0°c falling droplets on a surface while the air temperature is below freezing the temperature of the surface is higher than the dew point of the air and the dew point is lower than 0°c falling droplets on a surface with a temperature below freezing

Imagine an airfield during summer with sunny days and clear nights and with a ?

Question 150-27 : A strong sea breeze blowing more or less perpendicular to the runway a radiation inversion due to surface cooling during the clear night a subsidence inversion typical for summer anticyclones causing variations in wind speed and direction near the surface a strong land breeze blowing more or less perpendicular to the runway

Which of the following situations favours the formation of heavy thunderstorms ?

Question 150-28 : A cold front approaching a mountain range in the evening the passage of a warm front in the morning a cold front on the leeward side of a mountain range a warm sector moving over a snow covered ground

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

Question 150-29 : Moderate vertical wind shear severe horizontal wind shear gradual horizontal wind shear severe low level turbulence

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

Question 150-30 : 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

Mark the statement most reasonable regarding a valley inversion ?

Question 150-31 : 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

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

Question 150-32 : 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

With which meteorological phenomena are wind shear conditions mostly associated ?

Question 150-33 : 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

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

Question 150-34 : 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

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

Question 150-35 : 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

Mark the correct statement concerning lightning discharge ?

Question 150-36 : 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

Most tornadoes have a life span that lasts for ?

Question 150-37 : A few minutes up to 30 minutes approximately one hour several hours not more than one minute

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

Question 150-38 : 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

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

Question 150-39 : 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

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

Question 150-40 : Between 0°c and 15°c between 5°c and 30°c between 30°c and 40°c below 40°c