MET post PT 4

Question 1

A cold air drop is characterised by

a.A higher surface pressure compared to its surroundings. It can be found at surface levels

b.A lower pressure than its surroundings. It can be found at higher levels

c.A higher surface pressure compared to its surroundings. It can be found at higher levels

d.A lower pressure compared to its surroundings. It can be found at surface levels

Answer 1

b.A lower pressure than its surroundings. It can be found at higher levels

Question 2

In a tropical storm, the maximum sustained wind speed that can be encountered is [ ] knots.

Answer 2

[63]

Question 3

The main hazard of ice crystal icing is

a.engine power reduction or malfunction

b.the stabilizer can be rendered ineffective

c.loss of control due to the ailerons freezing

d.ice build up on the wing

Answer 3

a.engine power reduction or malfunction

Question 4

What terms would complete the following phrase? The Trade Winds flow from
[ ] to the [ ].

Answer 4

[Sub‑tropical high ] [Intertropical convergence zone]

Question 5

In the case of blowing snow, visibility may be reduced to a minimum value of

a.1 metre

b.1000 metres

c.500 metres

d.100 metres

Answer 5

a.1 metre

Question 6

The dangers of flying close to the ITCZ include [ ], [ ] and [ ].

Answer 6

[showers][strong winds][thunderstorms at noon]

Question 7

What is most likely to dissipate fog that has formed after a long, calm, cloudless night?

a.Lack of wind

b.Increased solar radiation

c.The passing of nimbostratus cloud

d.Reduction in temperature

Answer 7

b.Increased solar radiation

Question 8

What is one of the disadvantages of airborne weather (WX) radar?

a.Echoes from the radar cannot be properly picked up in CAT

b.It is very harmful for humans during cruise flight

c.Severe weather can hide more severe weather behind it

d.It uses a lot of electrical power which in turn increases fuel consumption

Answer 8

c.Severe weather can hide more severe weather behind it

Question 9

What is the best way to dissipate orographic fog?

a.An anabatic wind

b.Adiabatic cooling

c.A downslope wind

d.An upslope wind

Answer 9

c.A downslope wind

Question 10

A METAR will report the surface wind relative to [ ] North and is averaged over [ ].

Answer 10

[True] [10 ]

Question 11

Which organisation is responsible for producing gridded area forecast?

a.Air Traffic Services

b.World Area Forecast Centre

c.Meteorological Watch Office

d.Aerodrome Meteorological Offices

Answer 11

b.World Area Forecast Centre

Question 12

The countries which most commonly experience monsoons are [ ] and [ ].

Answer 12

[W Africa] [ 2 ]

Question 13

The geostrophic force is strongest

a.close to the Poles

b.at the Equator

c.at mid-latitude

d.close to the Equator

Answer 13

a.close to the Poles

Question 14

What does the term TREND signify?

a.It is a flight forecast issued by a meteorological station several times daily

b.It is a warning of dangerous meteorological conditions

c.It is the actual weather report at an aerodrome and is usually issued half-hourly

d.It is a landing forecast added to the actual weather report

Answer 14

d.It is a landing forecast added to the actual weather report

Question 15

In which of the following situations is an aircraft most susceptible to icing?

a.Flying in heavy drizzle

b.Level flight in snowfall below a nimbostratus layer

c.Level flight below a rain-producing cloud when OAT is below 0oC

d.Flying in dense cirrus cloud

Answer 15

c.Level flight below a rain-producing cloud when OAT is below 0oC

Question 16

London City Airport is report the following with runway 27 in use. What visibility can be expected for an aircraft making its approach to land at 17:30? METAR EGLC 231720 260/10kt 3000 HZ NSW

a.Less than 5000m but more than 1500m

b.Less than 3000m but more than 1500m

c.Less than 1500m

d.Less than 2000m but more than 50m

Answer 16

b.Less than 3000m but more than 1500m

Question 17

Mountain waves originating from the Rocky Mountains (USA) can extend [ ] vertically and [ ] horizontally.

Answer 17

[up to the tropopause][600nm downwind]

Question 18

Which weather development can be expected by a pilot flying from the East towards a stable warm front which is approaching from the west?

a.At approximately 500km ahead of the surface front there is overcast cirrostratus, the cloud base lowers to become overcast altostratus and finally nimbostratus. At approximately 300km ahead of the surface front the aircraft encounters rain which intensifies.

b.Flying towards the surface front the aircraft suddenly encounter an area with a low cloud ceiling and rain. Conditions then improve on the course to the west until the rain finally ceases. The cloud ceiling rises slowly then at a distance of approximately 800km from the surface front the sky clears.

c.At approximately 800km ahead of the surface front there is overcast cirrostratus, the cloud base lowers to become overcast altostratus and finally nimbostratus. At approximately 300km ahead of the surface front the aircraft encounters rain which intensifies.

dAt approximately 1000km ahead of the surface front there is overcast cirrostratus, the cloud base lowers to become overcast altostratus and finally nimbostratus. At approximately 300km ahead of the surface front the aircraft encounters rain which intensifies.

Answer 18

c.At approximately 800km ahead of the surface front there is overcast cirrostratus, the cloud base lowers to become overcast altostratus and finally nimbostratus. At approximately 300km ahead of the surface front the aircraft encounters rain which intensifies.

Question 19

During an approach to land an aircraft experiences a headwind at 4000ft followed by an increasing crosswind component from the right in the friction layer. The wind shift

a.Results from a cold front advection in the southern hemisphere

b.Results from a warm front advection in the southern hemisphere

c.Is typical in the southern hemisphere

d.Is typical in the northern hemisphere

Answer 19

c.Is typical in the southern hemisphere

Question 20

In the southern hemisphere ahead of a warm front the surface wind will [ ] on the passage of the warm front and [ ] on the passage of the cold front.

Answer 20

[back] [back]

Question 21

The geostrophic wind increases in speed towards the north in the northern hemisphere

Select one:
True
False

Answer 21

False

Question 22

What weather situation leads to the formation of a downburst?

a.Cold air descending from a mature cumulonimbus

b.The presence of a growing thermal bubble above a desert in summertime

c.A sudden change in wind direction at the passage of a front

d.Turbulence formation in a stable air mass over mountainous terrain

Answer 22

a.Cold air descending from a mature cumulonimbus

Question 23

The Numerical Weather Prediction (NWP) system for forecasting uses a [ ] grid.

Answer 23

[3D]

Question 24

An aircraft is destined for an aerodrome in N Europe which is reporting frontal fog. What should be anticipated by the pilot?

a.Once the front has passed through the fog is likely to clear

b.The frontal fog is likely to remain over the destination aerodrome for at least 24 hours

c.Once the front has passed through the fog is likely to thicken

d.Once the front has passed the fog will clear due to thunderstorms and strong winds

Answer 24

a.Once the front has passed through the fog is likely to clear

Question 25

Vertical visibility is reported in [ ] steps up to a maximum of [ ]

Answer 25

[30m] [600m]