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Question ID: 706

Over the west coast of a land mass. Wind is Westerly at 9 knots. Air over the sea is 18°C.

What can cause advection fog?

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A

A warm front

B

An occluded front

C

A warm land surface

D

A cooler land surface

Explanation

We are not sure of the exact options yet for this question, if you know please report the options

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Question ID: 668

what approximate height is the tropopause assumed to be in the temperate latitudes?

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A

16000ft

B

8000ft

C

62000ft

D

36000ft

Explanation

Tropopause is 8KM high over the poles and 16KM high over the equator

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Question ID: 666

In a METAR, what is meant by the use of the abbreviation NSW?

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A

It is a wind direction

B

No Windshear

C

No significant weather

D

No significant wind

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Question ID: 664

There has been an anticyclone established for nearly a week, with the centre of high pressure established over your aerodrome. What would you expect the flying conditions to be like?

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A

Light winds and a risk of haze

B

Rain and showery conditions, excellent visibility

C

Moderate winds, good visibility becoming poor in showers

D

Strong winds and good visibility

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Question ID: 663

What icing can be encountered during a clear warm day

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A

carburettor ice; hoar frost

B

Clear ice

C

Rime Ice

D

Hail

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Question ID: 662

After landing at an aerodrome (aerodrome elevation 1715 ft), the altimeter indicates an altitude of 1310 ft. The altimeter is set to the pressure value of 1013 hPa. What is the QNH at this aerodrome?

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A

1015 hPa.

B

1013 hPa.

C

1028 hPa.

D

998 hPa.

Explanation

The difference between 1310 & 1715 = 405FT

Convert that to mb = 15mb

The altimeter is showing an altitude of 1310ft, and the elevation is 1715

How do we get the altimeter to read 1715ft, we have to increase the sub scale, by 15mb (1013 + 5 = 1028)

Remember if you know the elevation of an airport , when on the ground you can just turn the sub scale till it reads the airport elevation and that is your QNH, handy when we are taking off an aerodrome with no radio/tower available

Explanation Provided by atplGS

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Question ID: 660

During a flight over the sea at FL 100 from Marseille (QNH 1016 hPa) to Palma de Mallorca (QNH 1016 hPa), the true altitude is constantly decreasing

What is the probable reason for this?

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A

One of the QNH values must be wrong

B

The altimeter is faulty

C

The air over Palma de Mallorca is warmer than that over Marseille

D

The air over Marseille is warmer than that over Palma de Mallorca

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Question ID: 650

Low level windshear is likely to be greatest

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A

at the condensation level when there is no night radiation.

B

at the condensation level when there is a strong surface friction.

C

at the top of the friction layer.

D

at the top of a marked surface-based inversion.

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Question ID: 649

Absolute instability in the atmosphere will occur when the environmental lapse rate is

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A

less than saturated adiabatic lapse rate

B

less than both saturated adiabatic lapse rate and dry adiabatic lapse rate

C

greater than both saturated adiabatic lapse rate and dry adiabatic lapse rate

D

greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate

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Question ID: 646

What type of clouds indicate high level jet streams to a pilot?

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A

Clouds cannot help locate a jet stream

B

Cirrus

C

Alto Cirrus

D

Cumulus

Explanation

High Level Clouds
16500 - 45000ft
Composed of Ice Crystals
Cirrus, Cirrostratus, Cirrocumulus

Jet streams usually are very high. You can see a jet stream when there is streaky cirrus clouds

Explanation Provided by Fisnik Lluka

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Question ID: 645

Which of the following values corresponds to a SW-wind?

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A

045°

B

135°

C

225°

D

315°

Explanation

North (N) = 000°/360°
East (E) = 090°
South (S) = 180°
West (W) = 270°

Therefore, SouthWest (SW) is in between 180° & 270° = 225°

Explanation Provided by Tom Sutton

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Question ID: 644

Compared to a microburst, a macroburst..

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A

is free of rain

B

has an updraft.

C

occurs over a shorter time period.

D

affects a larger area.

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Question ID: 642

Which statement is correct? The Ferrel cell..

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A

is the connecting cell between the tropical Hadley cell and the polar cell.

B

is, of all the cells, the one with the lowest temperature and is located closest to the Pole.

C

extends from the subtropical jet stream towards the Equator.

D

is located closest to the Equator with the highest moisture content of all the cells.

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Question ID: 641

You have to cross an obstacle 2000ft above. Obstacle is 4530ft
QNH 1029
Temperature at 2000ft Above MSL is +22 Celsius
What is the minimum FL

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A

FL 070

B

FL 040

C

FL 065

D

FL 060

Explanation

Let´s start from beginning. You have to fly 4530ft + 2000ft = 6530

Temp at 2000ft should be +11 degrees C. Since it is +22 degrees we have ISA+11
Hotter outside -> Our True altitude will be higher, we can therefore descend since the isobars has a larger space in between. This will be 290 ft.

Since we will change over to FL -> We will turn our QNH down to 1013. (From 1029) =16hPa. 16x27ft = 430ft. Since the "real QNH" is higher we can descend even further to keep True altitude at 6530ft.

6530-280-430 = 5820ft -> Our minimum Altitude with QNH 1013 set is 5820ft to keep True altitude at 6530ft. We can therefore stay at FL060 and be 2000ft above obstacle.

Question and answer is confirmed by CAA

Video to assist

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Question ID: 636

TAF EHAM 142300Z 1500/1509 33005KT 9999 SCT025 BKN100 BECMG 1500/1502 27015KT 4500 -SN SCT008 OVC015 TEMPO 1502/1506 0400 +SN VV002 BECMG 1504/1506 01008KT 9999 NSW SCT030 TEMPO 1507/1509 03015G25KT 1200 SNSH SCT006 SCT015CB=

What is the expected visibility at 0300 UTC?

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A

Between 400 m and 4 500 m.

B

Between 4 500 m and 10 km or more.

C

Between 400 m and 10 km or more.

D

4 500 m.

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Question ID: 635

The TAF weather messages are

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A

hourly or semi-hourly weather observations.

B

landing forecasts of the trend type.

C

airport forecasts.

D

special weather observations.

Explanation

A Taf is a weather forcast ,and is not always gods gospel either! dont be fooled in to thinking it will be accurate the metar is always the accurate one as its "real time"

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Question ID: 634

Refer to the following TAF extract BECMG 1218/1221 2000 BR BKN004 BECMG 1221/1224 0500 FG VV001 What visibility is forecast for 2400 UTC?

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A

Between 0 m and 1000 m.

B

500 m.

C

Between 500 m and 2000 m.

D

2000 m.

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Question ID: 632

Refer to the following TAF message

LFxx 180800Z 1809/1818 22020KT 6000 SCT015 SCT080 BECMG 1812/1814 2000 RA BKN009 OVC070=

At 1400 UTC, the lowest cloud base will be

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A

between 900 and 1500 feet AMSL

B

between 900 and 1500 feet AGL

C

at 900 feet AGL

D

at 1500 feet AGL

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Question ID: 629

After a prolonged VMC descent in very cold air, you penetrate a humid air mass

What type of icing will you encounter?

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A

Clear ice

B

Smooth icing

C

Hoar frost

D

Rime ice

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Question ID: 619

The typical expected time period from the beginning of the initial stage to the end of the dissipation stage of a thunderstorm is approximately

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A

30 min.

B

2 hrs.

C

5 hrs.

D

12 hrs.

Explanation

Developing stage = 30 mins
Mature stage = 30 Mins
Dissipating stage = 1-2 hours

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