An aircraft is flying from point a to point b at the flight level corresponding ? [ Revision flight ]

Question 134-1 : Wind speed over b is higher than over paris the true altitude will be higher over b than over a wind speed over a is higher than over b the true altitude will be higher over b than over paris

exemple 234 Wind speed over b is higher than over paris. — Ecqb01 2013 Wind speed over b is higher than over paris.

A temperature inversion indicates a state of the atmosphere which is ?

Question 134-2 : Absolutely stable absolutely unstable indifferent conditionally unstable

exemple 238 Absolutely stable. — Absolutely stable.

Which fl corresponds with the 150 hpa pressure level ?

Question 134-3 : Fl 450 fl 390 fl 340 fl 300

Admin .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 = fl390.150 hpa = fl450.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

In the icao standard atmosphere which of the following alternatives indicates ?

Question 134-4 : 15°c at mean sea level decreasing at 0 65°c per 100 metres 13°c at mean sea level decreasing at 2°c per 1000 feet 15°c at mean sea level decreasing at 0 65°c per 100 feet 15 2°c at mean sea level decreasing at 0 65°c per 100 metres

exemple 246 15°c at mean sea level, decreasing at 0,65°c per 100 metres. — Ecqb01 june 2013 15°c at mean sea level, decreasing at 0,65°c per 100 metres.

An aircraft is flying from point a to point b at the flight level corresponding ?

Question 134-5 : Wind speed over a is higher than over b the true altitude will be higher over a than over b wind speed over b is higher than over a the true altitude will be higher over a than over madrid

exemple 250 Wind speed over a is higher than over b. — Revised ecqb03 july 2016 ..isobars are tighter at a than b so wind speed over a is higher than over b Wind speed over a is higher than over b.

Which constant pressure chart is standard for fl 450 ?

Question 134-6 : 150 hpa 200 hpa 250 hpa 300 hpa

exemple 254 150 hpa. — Easa 2014..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 = fl390.150 hpa = fl450..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 150 hpa.

What is meant by the term 'altitude' ?

Question 134-7 : The vertical distance of a level or a point measured from mean sea level the vertical distance of a level or a point measured from the earth's surface altimeter indication when altimeter subscale is set to present qfe the vertical distance of a level or a point measured from the aerodrome reference point

exemple 258 The vertical distance of a level or a point measured from mean sea level. — Easa 2014 The vertical distance of a level or a point measured from mean sea level.

Which fl corresponds with the 250 hpa pressure level ?

Question 134-8 : Fl 340 fl 390 fl 450 fl 300

exemple 262 Fl 340. — Easa 2014..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 = fl390.150 hpa = fl450..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 Fl 340.

An aircraft flies at flight level 40 elevation of the aerodrome 990 ft qnh 976 ?

Question 134-9 : Only a small change of altitude is necessary the aircraft has to descend about 2000 ft the aircraft has to climb about 1000 ft the aircraft has to descend about 1000 ft

exemple 266 Only a small change of altitude is necessary. — Easa 2014 ..aerodrome elevation is a irrelevant .the aircraft is at fl 40 referenced to 1013 hpa now it must fly at 3000 ft referenced to qnh of 976 hpa .the difference is 37 hpa which at 27 ft per hpa = 999 ft .so only a 1 ft change is needed here Only a small change of altitude is necessary.

A surface based inversion is a characteristic of ?

Question 134-10 : Nocturnal radiation during clear nights cumulus clouds hill fog the passage of cold front

exemple 270 Nocturnal radiation during clear nights. — Ecqb03 july 2016 ..air close to the surface is cooled significantly but the air above it isn't and the surface temperature falls below the temperature of the air above Nocturnal radiation during clear nights.

Flight from lisbon to kingston .considering the route segment between 30°w and ?

Question 134-11 : 56°c 59°c 52°c 61°c

What is the approximate value of atmospheric pressure at 11000 m amsl in ?

Question 134-12 : One fourth one half one eights the same

exemple 278 One-fourth. — Ecqb03 july 2016 One-fourth.

Which type of inversion can lead to fog formation due to the temperature of air ?

Question 134-13 : Ground inversion frontal inversion turbulence inversion subsidence inversion

exemple 282 Ground inversion — Ecqb03 july 2016 Ground inversion

You are flying at fl 300 where the outside air temperature is 57 5°c and the ?

Question 134-14 : 28500 ft 30000 ft 25000 ft 31500 ft

exemple 286 28500 ft. — Ecqb03 august 2016 28500 ft.

At what flight level is the zero degree isotherm at the equator ?

Question 134-15 : Fl 180 fl 150 fl 200 fl 250

exemple 290 Fl 180. — Admin . the zero degree isotherm in the 'polar regions' is at ground level . the zero degree isotherm in 'temperate regions' is at mean sea level in winters and at about 10000 feet in summers . the zero degree isotherm in 'tropics' area 15° 30° n and s of the equator is at about 16000 feet . the zero degree isotherm at the equator is at about 18000 ft fl180 Fl 180.

Why are polar regions colder than equatorial regions ?

Question 134-16 : Because the angle of incidence of the solar radiation is very small in polar regions because the angle of incidence of the solar radiation is very large in polar regions the sky in the polar regions is cloud covered almost all the year the polar regions stay in the dark almost all the year

exemple 294 Because the angle of incidence of the solar radiation is very small in polar regions. — Ecqb03 december 2016 Because the angle of incidence of the solar radiation is very small in polar regions.

Which of the following is true concerning atmospheric pressure ?

Question 134-17 : It decreases with height it is higher in winter than in summer it is higher at night than during the day it always decreases with height at a rate of 1 hpa per 8m

exemple 298 It decreases with height. — Admin .the decrease of 1 hpa/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 It decreases with height.

The vertical temperature gradient lapse rate in the international standard ?

Question 134-18 : 6 5°c per 1000 m 2°c per 1000 m 3°c per 1000 m 4 5°c per 1000 m

exemple 302 6.5°c per 1000 m. — 6.5°c per 1000 m.

What is the approximate height of the tropopause between keflavik and helsinki ?

Question 134-19 : Fl 320 fl 300 fl 360 fl 350

exemple 306 Fl 320. — Admin . 462.you will find fl 325 closest answer is fl 320 Fl 320.

For a flight from the azores to the bermudas the tropical tropopause is to be ?

Question 134-20 : 51000 ft 12000 metres 60 000 ft 14000 metres 39 000 ft 9000 metres 33 000 ft 8000 metres

exemple 310 51000 ft (12000 metres). — 51000 ft (12000 metres).

Tropopause altitude at 38°n 19°w is . 410 ?

Question 134-21 : Fl 320 fl 360 fl 420 fl 400

Assuming a normal vertical temperature gradient at what altitude will the ?

Question 134-22 : Fl 60 fl 20 fl 140 fl 120

The temperature deviation from isa to the nearest °c overhead charleston at fl ?

Question 134-23 : +5 +3 7 5

exemple 322 +5. — Admin .the temperature lapse rates of the troposphere is mean value 0 65°c/100 m or 2°c/1000 ft .in isa temperature at fl340 should be 15 + 34 x 2°c = 53°c .as the current temperature at that level is 48°c you can say that at fl340 it is currently isa+5 .it is 5°c warmer than isa +5.

The maximum possible temperature at north pole is ?

Question 134-24 : Dependent on the seasons 10°c +10°c 20°c

exemple 326 Dependent on the seasons. — Dependent on the seasons.

In the northern hemisphere the force that causes a deviation to the left from ?

Question 134-25 : Frictional force centripetal force pressure gradient coriolis force

exemple 330 Frictional force. — Ecqb04 january 2018 .. 498.at the surface and at low elevations friction will slow the air and hence the coriolis will be less effective in its deflection of the wind .the flow turns across the isobars you have more flow into the low pressure system giving convergence and feeding the convection Frictional force.

The wind indicator for a weather observation receives the measured value from ?

Question 134-26 : On a mast 8 10 m above the runway 1 m above the runway close to the station about 2 m above the ground on the roof of the weather station

exemple 334 On a mast 8-10 m above the runway. — On a mast 8-10 m above the runway.

The geostrophic wind is greater than the gradient wind around a low pressure ?

Question 134-27 : Centrifugal force opposes the pressure gradient centrifugal force is added to the pressure gradient coriolis force is added to the pressure gradient coriolis force opposes to the centrifugal force

exemple 338 Centrifugal force opposes the pressure gradient. — Admin .we have a geostrophic wind when the pressure gradient force pgf is exactly balanced by coriolis force . 582.it is only happens when isobars are straights and parallels .if the isobars are curved an additional force centrifugal force is introduced and always tries to throw the parcel of air outwards from the centre of its rotation and the resulting movement of air is called the gradient wind . 583.with an area of high pressure anticyclone the centrifugal force is acting in the same direction as pgf effectively increasing it coriolis balances the total force pgf + centrifugal force and the gradient wind is 'high round a high' i e for a given gap between the isobars the gradient wind is stronger than the geostrophic wind .with an area of low pressure cyclonic system the centrifugal force is opposing the pgf effectively decreasing it coriolis balances the total force pgf centrifugal force and the gradient wind is 'low round a low' i e for a given gap between the isobars the gradient wind is weaker than the geostrophic wind Centrifugal force opposes the pressure gradient.

The geostrophic wind is less than the gradient wind around an anticyclone ?

Question 134-28 : Centrifugal force is added to the pressure gradient centrifugal force opposes the pressure gradient effect of coriolis is added to friction coriolis effect opposes the centrifugal force

exemple 342 Centrifugal force is added to the pressure gradient. — Admin .we have a geostrophic wind when the pressure gradient force pgf is exactly balanced by coriolis force . 582.it is only happens when isobars are straights and parallels .if the isobars are curved an additional force centrifugal force is introduced and always tries to throw the parcel of air outwards from the centre of its rotation and the resulting movement of air is called the gradient wind . 583.with an area of high pressure anticyclone the centrifugal force is acting in the same direction as pgf effectively increasing it coriolis balances the total force pgf + centrifugal force and the gradient wind is 'high round a high' i e for a given gap between the isobars the gradient wind is stronger than the geostrophic wind .with an area of low pressure cyclonic system the centrifugal force is opposing the pgf effectively decreasing it coriolis balances the total force pgf centrifugal force and the gradient wind is 'low round a low' i e for a given gap between the isobars the gradient wind is weaker than the geostrophic wind Centrifugal force is added to the pressure gradient.

In the lower layers of the atmosphere due to friction the wind changes ?

Question 134-29 : Wind speed decreases and therefore coriolis force decreases the pressure gradient increases turbulence is formed and pressure increases turbulence is formed and pressure decreases

exemple 346 Wind speed decreases and therefore coriolis force decreases. — Admin . 498.at low elevations friction will slow the air and hence the coriolis will be less effective in its deflection of the wind Wind speed decreases and therefore coriolis force decreases.

The most frequent wind direction in a valley caused by thermal effects is ?

Question 134-30 : Mountain during daylight hours mountain at night valley during daylight hours valley during daylight as much as at night

exemple 350 Mountain during daylight hours. — Admin .during the day the sun heats up valley air rapidly this causes it to rise causing a warm upslope wind valley breeze .at night the process is reversed mountain air cools rapidly at night and 'falls' downslope causing a wind going in the valley mountain breeze . 499.a mountain breeze and a valley breeze are two related localized winds that occur one after the other on a daily cycle Mountain during daylight hours.

Convective activity over land in mid latitudes is greatest in ?

Question 134-31 : Summer in the afternoon winter during the night and early morning summer during the night and early morning winter in the afternoon

exemple 354 Summer in the afternoon. — Admin .thunderstorms may occur in the summer months in the afternoon or evening due to convective activity the land warms causing convective lifting = cb Summer in the afternoon.

Which forces are balanced with geostrophic winds ?

Question 134-32 : Pressure gradient force coriolis force friction force pressure gradient force coriolis force pressure gradient force coriolis force centrifugal force pressure gradient force centrifugal force friction force

exemple 358 Pressure gradient force, coriolis force. — Admin .we have a geostrophic wind when the pressure gradient force pgf is exactly balanced by coriolis force . 582 Pressure gradient force, coriolis force.

How does moderate turbulence affect an aircraft ?

Question 134-33 : Changes in altitude or attitude occur but the aircraft remains in positive control at all times rapid and somewhat rhythmic bumpiness is experienced without appreciable changes in altitude or attitude large abrupt changes in altitude or attitude occur but the aircraft may only be out of control momentarily continued flight in this environment will result in structural damage

exemple 362 Changes in altitude or attitude occur but the aircraft remains in positive control at all times. — Admin .procedures for air navigation services air traffic management pans atm doc 4444 .instructions for air reporting by voice communications.moderate conditions in which moderate changes in aircraft attitude and/or altitude may occur but the aircraft remains in positive control at all times usually small variations in airspeed changes in accelerometer readings of 0 5 g to 1 0 g at the aircraft's centre of gravity difficulty in walking occupants feel strain against seat belts loose objects move about .severe conditions in which abrupt changes in aircraft attitude and/or altitude occur aircraft may be out of control for short periods usually large variations in airspeed changes in accelerometer readings greater than 1 0 g at the aircraft's centre of gravity occupants are forced violently against seat belts loose objects are tossed about Changes in altitude or attitude occur but the aircraft remains in positive control at all times.

Which degree of aircraft turbulence is determined by the following icao ?

Question 134-34 : Moderate severe violent light

exemple 366 Moderate. — Admin .procedures for air navigation services air traffic management pans atm doc 4444 .instructions for air reporting by voice communications.moderate conditions in which moderate changes in aircraft attitude and/or altitude may occur but the aircraft remains in positive control at all times usually small variations in airspeed changes in accelerometer readings of 0 5 g to 1 0 g at the aircraft's centre of gravity difficulty in walking occupants feel strain against seat belts loose objects move about .severe conditions in which abrupt changes in aircraft attitude and/or altitude occur aircraft may be out of control for short periods usually large variations in airspeed changes in accelerometer readings greater than 1 0 g at the aircraft's centre of gravity occupants are forced violently against seat belts loose objects are tossed about Moderate.

In a land and sea breeze circulation the land breeze blows ?

Question 134-35 : During the night and is weaker than the sea breeze during the day and is stronger than the sea breeze during the day and is weaker than the sea breeze during the night and is stronger than the sea breeze

exemple 370 During the night and is weaker than the sea-breeze. — Admin . 600 During the night and is weaker than the sea-breeze.

A high pressure area slack pressure gradient covers part of the mediterranean ?

Question 134-36 : Sea to land land to sea variable parallel to the coastline

exemple 374 Sea to land. — Admin .during a sunny afternoon sea breeze is likely to occur . 601.we should expect a wind from the sea . 544 Sea to land.

A mountain breeze katabatic wind blows ?

Question 134-37 : Down the slope during the night up the slope during the day down the slope during the day up the slope during the night

exemple 378 Down the slope during the night. — Admin .during the day the sun heats up valley air rapidly this causes it to rise causing a warm upslope wind valley breeze .at night the process is reversed mountain air cools rapidly at night and 'falls' downslope causing a wind going in the valley mountain breeze . 499.a mountain breeze and a valley breeze are two related localized winds that occur one after the other on a daily cycle Down the slope during the night.

Generally northern hemisphere winds at 5000 ft/agl are south westerly while ?

Question 134-38 : Friction between the wind and the surface a strong pressure gradient at higher altitudes stronger coriolis force at the surface the influence of warm air at the lower altitude

exemple 382 Friction between the wind and the surface. — Admin .at low elevations friction will slow the air and hence the coriolis force will be less effective in its deflection of the wind . 561.as the elevation decreases the direction backs changes direction in an counter clockwise motion in northern hemisphere .at mid latitude over land wind speed in friction layer decrease by 50% angle between wind direction and isobars changes by 30° value to be used in examinations Friction between the wind and the surface.

Friction between the air and the ground results in the northern hemisphere in ?

Question 134-39 : Backing of the wind and decrease of wind speed at the surface veering of the wind and decrease of wind speed at the surface backing of the wind and increase of wind speed at the surface veering of the wind and increase of wind speed at the surface

exemple 386 Backing of the wind and decrease of wind speed at the surface. — Admin .at low elevations friction will slow the air and hence the coriolis force will be less effective in its deflection of the wind . 561.as the elevation decreases the direction backs changes direction in an counter clockwise motion in northern hemisphere .at mid latitude over land wind speed in friction layer decrease by 50% angle between wind direction and isobars changes by 30° value to be used in examinations Backing of the wind and decrease of wind speed at the surface.

What degree of turbulence if any is likely to be encountered while flying ?

Question 134-40 : Severe turbulence in cb cloud moderate turbulence in ns cloud light turbulence in cb cloud light turbulence in st cloud

exemple 390 Severe turbulence in cb cloud. — Severe turbulence in cb cloud.

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