Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

met vle school-finals > MET SF > Flashcards

MET SF Flashcards

1
Q

An aircraft is en-route at FL150 over mountainous terrain with an OAT of -25C. The MSA (minimum sector altitude) in this region is 10,000ft and the local QNH is 998hPa. The aircraft will have an actual clearance above MSA of [ ].

A

[3950ft].

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

On a very cold day, an aircraft is circling level with the top of a mountain peak using the QNH 1009. The altimeter will read
Select one:

  1. the same as the elevation of the peak
  2. not enough information to tell
  3. higher than the elevation of the peak
  4. lower than the elevation of the peak
A
  1. higher than the elevation of the peak
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

An aircraft is over Spain at FL280 temp -35 degrees. The ISA deviation is [ ].

A

[+6]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The pressure lapse rate (thickness between pressure levels) varies and will be affected by
[ ] changes in the atmosphere.

A

[temperature]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Given that the Transition Altitude (TA) is 13000ft, Transition Level (TL) is FL155, QNH 983. What is the thickness of the transition layer? (assume 30ft or 9m/hpa)
a. 1600 ft
b. 2500 ft
c. 3400 ft
d. 1900 ft

A

a. 1600 ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

If an aircraft is flying at FL180 in air temperature -35°C, the air density
[ ] in ISA.

A

[is likely to be greater than]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Below FL290 the standard vertical separation between FLs is 2000ft. On a given day, if the actual layer thickness is 1840ft how does the air temperature deviate from ISA? The OAT will be
[ ].

A

[ISA -20]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

In Paris on a February evening the METAR is as follows: 121750 240/05 1200 OVC010 03/M01 Q1003. It can be assumed that the overnight temperature will [ ] [ ] 3 degrees C.

A

[fall] [slightly below]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Regarding pre-flight weather information available to crew, for a planned flight at FL170 the [ ] chart would be the most useful.

A

500 hpa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

For an airport situated 100ft below MSL, the QFE will be [ ] QNH

A

[greater than]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

An aircraft is on approach to land at an aerodrome in the Southern hemisphere where the wind at 3000ft is 060/30 kts. In the final stages of the approach, the surface wind is likely to be [ ] degrees at [ ] kts.

A

[090] [15]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

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. is typical in the southern hemisphere

b. is typical in the northern hemisphere

c. results from a cold front advection in the southern hemisphere

d. results from a warm front advection in the southern hemisphere

A

a. is typical in the southern hemisphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which of the following is an example of a Foehn wind?

a. Ghibli
b. Chinook
c. Bora
d. Harmattan

A

b. Chinook

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

At an airfield situated parallel to the south coast of UK on a cloudless summer afternoon, which hazard is most likely to affect an aircraft low on the approach:

a. a strong land breeze blowing more or less perpendicular to the runway

b. a sea breeze blowing more or less perpendicular to the runway

c. variations in wind speed and direction at the surface due to a subsidence inversion typical for summer anticyclones

d. a radiation inversion due to surface cooling during the clear night

A

b. a sea breeze blowing more or less perpendicular to the runway

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A north-south polar front jet stream is blowing at FL310 with Shannon to the west and Amsterdam to the east. An aircraft flying from Amsterdam to Shannon at FL320 would most likely experience the worst turbulence
[ ] crossing the core of the jet stream.

A

[before]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

In mountainous regions a
[ ] wind is likely to develop
[ ] due to [ ].

A

[katabatic] [at night] [radiative cooling]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The Harmattan is a

a. warm southerly dust-bearing wind from the coast of North Africa

b. SW monsoonal wind causing extensive areas of advection fog along the West African coast south of 15°N

c. localised depression giving squally winds

d. NE wind affecting north-west Africa during November to April, reducing visibility in rising dust

A

d. NE wind affecting north-west Africa during November to April, reducing visibility in rising dust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

An aircraft flying at FL240 on the northern hemisphere is experiencing a tailwind. The aircraft is

a. flying towards a low pressure area
b. flying with low pressure on its right
c. flying with low pressure on its left
d. flying towards a high pressure area

A

c. flying with low pressure on its left

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

In summer in the northern hemisphere the maximum wind speeds associated with subtropical jet streams are usually located

a. Above the tropopause at about 250hPa
b. Below the tropopause at about 200hPa
C. Below the tropopause at about 300hPa
d. Above the tropopause at about 100hPa

A

b. Below the tropopause at about 200hPa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

An aircraft flying from North to South in the Northern Hemisphere crosses the Polar Front Jetstream just above the core. The outside air temperature will [ ].

A

[decrease]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is true of the relationship between temp and dewpoint?

a. Humid air has a high dew point temperature relative to the air temperature

b. High cloud is likely when surface air temperature and dewpoint are close together

C. Dry air has a high dew point temperature relative to the air temperature

a. Dewpoint is always higher than temperature

A

a. Humid air has a high dew point temperature relative to the air temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the state of atmospheric stability when the temperature at 2000ft is +15 degrees C and at 5000ft is +3 degrees C?
Select one:

  1. Absolutely stable
  2. Absolutely unstable
  3. Conditionally unstable
  4. Conditionally stable
A
  1. Absolutely unstable
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The outside temperature is +30°C and the dew point is +21 °C. Calculate the relative humidity.

a. 55%
b. 65%
c. 45%
d. 75%

A

a. 55%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

An aerodrome situated on top of hill with a 500ft elevation is reporting fog; a nearby aerodrome with an elevation of 200ft is reporting visibility 8000m.

What is the most probable reason for the difference in conditions?

a. An upslope wind
b. Convective activity
c. The passage of a cold front
d. Surface cooling by terrestrial radiation

A

a. An upslope wind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

From the situations described below, in which would the highest cloud tops most likely be found?

a. Near an occlusion point
b. Along a mid-latitude cold front x
c. A tropical cyclone
d. A polar low in winter

A

c. A tropical cyclone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

[ ] fog is likely to form when a stable air mass having a temperature of -25°C passes over an ice free ocean having a temperature of +1°C?

A

[steam]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

The type of cloud formed when warm, light air rises rapidly into cooler air is:

a. stratocumulus
b. nimbostratus
c. cumulus
d. stratus

A

c. cumulus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

The expected flight conditions in Cirriform cloud are [ ] and [ ].

A

[no airframe icing] [visibility greater than 1000m]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

“A slight obscuration of the lower atmosphere, typically caused by fine suspended particles of a solid nature” is a description of [ ].

A

[haze]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

On a relatively clear and calm evening in early winter, you receive the ATIS for your arrival into Geneva and notice that the temperature and dew point are 1 degree C and minus 1 degree C respectively. What is most likely to occur over the course of the night and into the early morning?

a. the wind is likely to strengthen
b. radiation fog is likely develop
c. cloud will form
d. precipitation is likely

A

b. radiation fog is likely develop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

“When rain, falling from relatively warm air, evaporates into cooler air close to the surface and causes it to become saturated”.
The definition above describes [ ] fog.

A

[frontal]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

In a warm cloud, according to the coalescence theory, precipitation will form by

a. droplets joining together if they have the same electrical charge

b. droplets joining together beneath the cloud

c. droplets joining together with ice crystals

d. droplets joining together in the cloud

A

d. droplets joining together in the cloud

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

In mid-latitudes, the intensity of precipitation associated with low level stratus is typically [ ].

A

[light]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

An aircraft flying west through a warm front where the freezing level is 8000ft in the warm air and at 3000ft in the cold air. The aircraft is least likely to encounter freezing rain at [ ].

A

[10,000ft]

35
Q

According to the chart extract, the air mass covering the UK is [ ].

A

[Tropical maritime]

36
Q

With a polar front depression approaching a station in Central Europe in the summer, how would the surface conditions change over a period of 8 hours?

a. pressure and cloud ceiling height will both decrease

b. stability and cloud ceiling height will both increase

c. temperature and pressure will both increase

d. pressure will increase, visibility will decrease

A

a. pressure and cloud ceiling height will both decrease

37
Q

A tropical air mass which can hold the properties of cold air describes:

a. polar maritime
b. returning polar maritime
c. tropical maritime
d. arctic maritime

A

b. returning polar maritime

38
Q

Which of the four figures below represents a vertical cross section of a warm occlusion? Warm air is rendered (shown) in red, cold air in light blue and the coldest air in dark blue. Black arrows point towards the direction of migration (movement).

a. 4
b. 3
c. 1
d. 2

A

d. 2

39
Q

A mass of air with warmer air advected into the upper layers and colder air in the lower layers is characterized by:

a. low cloud or fog, poor visibility

b.warm temperatures, good visibility

c. continuous rain and freezing temperatures

d. strong winds, cumulus clouds, good visibility

A

a. low cloud or fog, poor visibility

40
Q

At what time of year are the paths of North Atlantic lows travelling from west to east generally at their most southerly position?

a. spring
b. autumn
c. summer
d. winter

A

d. winter

41
Q

The number of Tropical Revolving Storms typically occurring in the northwestern Pacific, in the region of SE Asia is:

a. 16
b. 9
C. 2
d. 5

A

a. 16

42
Q

In temperate latitudes the weather conditions that may be expected over land in the centre of a stationary high pressure zone are during the summer
[ ] and during the winter
[ ].

A

[calm wind, haze] [fog, low stratus]

43
Q

Which of the following is typically true of a Tropical Revolving Storm?

a.The warm air from the land rises, diverges and then creates cold oceanic low pressures.

b.They travel East to West between latitudes 5 - 10°N and are created by the convergence of air at altitude from large low pressures.

c. They travel East to West between latitudes 10 - 15°N then generally Poleward

d.They form over the oceans in the winter as the sea surface cools.

A

c. They travel East to West between latitudes 10 - 15°N then generally Poleward

44
Q

The feature dominating the area circled with red on the synoptic chart below is known as a [ ].

A

[ridge]

45
Q

An aircraft transiting a mountainous region at FL200 is approaching a north-south mountain range. With a westerly wind blowing towards the range, an orographic low is most likely to exist on the
[ ] side.

A

[eastern]

46
Q

In January an extended high pressure area on the northern hemisphere is normally observed over:
a. Central Europe
b. South America
C. Siberia
d. Southern Africa

A

C. Siberia

47
Q

The rain forest climate has a typical relative humidity of [ ] temperature of
[ ] and freezing level at [ ].

A

[80%] [30 degrees] [16000ft]

48
Q

The position of the ITCZ (inter-tropical convergence zone):

a. shows more variation over the oceans than the continents

b. depends upon thunderstorm activity

c. is more to the north in January than July

d. shows more variation over the continents than over the oceans

A

d. shows more variation over the continents than over the oceans

49
Q

For a flight planned from Paris to the Caribbean, near the ITCZ in summer, the type of weather expected would be [ ]
and hazards anticipated are [ ] and
[ ].

A

[thunderstorms] [severe turbulence] [heavy precipitation]

50
Q

A cold air outbreak is when cold air stretches into mid or low latitude. What hazards to aviation are associated with this phenomenon?

Select one:
a. These events are seldom and short-lived so pose only a slight risk to aviation.

b. The unusual latitude leads to instability, cumuliform cloud and increased icing and turbulence risk

c. The severe surface cooling creates a vast area of thick cold low level cloud

d. The lower tropopause caused by the outbreak means usual flight altitudes would then occur in the stratosphere

A

b. The unusual latitude leads to instability, cumuliform cloud and increased icing and turbulence risk

51
Q

What is the average height of the zero degree isotherm over equatorial regions?
Select one:

a. 30,000ft
b. 25,000ft
c. 16,000ft
d. 10,000ft

A

c. 16,000ft

52
Q

How do the Trade Winds change their direction when they have to travel through the geographical equator to the equatorial low pressure belt?

Select one:
a. NW Trades become SE and SW Trades become NE

b. NW Trades become SE and SW Trades become NE

c. NE Trades become SE and SE Trades become NE

d. NE Trades become NW and SE Trades become SW

A

d. NE Trades become NW and SE Trades become SW

53
Q

Considering the weather conditions over Ecuador in the region of the ITCZ, what hazards to flight are likely?

a. Tropical revolving storms

b. Low pressure causing the altimeter to under-read

c. Low pressure causing the altimeter to over-read

d. Density altitude increasing causing the altimeter to under-read

A

c. Low pressure causing the altimeter to over-read

54
Q

Which of the following is associated with the Pamperos?

a. Foehn conditions affecting the Spanish Pyrenees

b.Stormy conditions affecting the mid-west of North America

c. Cold Katabatic winds in the Adriatic

d. Bursts of cold air in South America

A

d. Bursts of cold air in South America

55
Q

You are making an approach to an airfield with a mountain range to the East.
The wind is easterly and the range has cloud at its peak. Where is the greatest risk of airframe icing?

a. On the eastern side below the peak

b. On the western side below the peak

c. On the western side above the peak

d. On the eastern side above the peak

A

d. On the eastern side above the peak

56
Q

Departing an aerodrome under a low level inversion, what weather could be expected to be encountered?

a. Poor visibility due to the lack of horizontal movement of air

b. Good visibility at night due to the associated calm wind

c. Poor visibility due to the lack of vertical air movement

d. Good visibility in the morning due to wind shear

A

c. Poor visibility due to the lack of vertical air movement

57
Q

The risk of ice crystal icing exists at high altitude, particularly in tropical latitudes and is caused by very small ice crystals in high concentrations within and near convective weather systems. The ice crystals are extremely small - probably only about 40 microns in diameter - and even at high concentrations, are unlikely to be evident visually or on airborne weather radar displays. In an ice crystal icing event, what type of icing is formed?

a. Clear ice crystal icing
b. Rime ice
c. Ice crystals
d. Clear ice

A

c. Ice crystals

58
Q

The minimum level of visibility that could be encountered in blowing surface snow is
[ ].

A

[1m]

59
Q

Clear air turbulence CAT can be defined as

a.The meeting of air masses moving at different speeds in mountainous areas

b. Severe turbulence associated with thunderstorms

c. Turbulent movement of air occurring in the absence of any visual clues

d. Disturbed air flow that causes violent buffeting of aircraft identified by lenticular cloud

A

c. Turbulent movement of air occurring in the absence of any visual clues

60
Q

Mixed ice is most likely to be encountered when flying:

a. in Cb cloud at temperatures between 0 and -10 °C

b.in As cloud at temperatures between -14 and -23 °C

c. in St cloud at temperatures below -23 °C

d. in NS cloud at temperatures between -9 and -14 °C

A

d. in NS cloud at temperatures between -9 and -14 °C

61
Q

You have an inflight safety briefing about ice crystal icing (ICI). what flight hazards are generally associated with ICI?

a. possible frozen windshield and loss of engine performance

b. erroneous reading from heated probes and possible loss of engine performance or severe engine malfunction

c. moderate or possibly severe turbulence

d. engine loss or malfunction and ice accumulation on leading edges

A

b. erroneous reading from heated probes and possible loss of engine performance or severe engine malfunction

62
Q

You have to make an emergency landing in a valley with mountains along both sides. MTW is reported. What would be the greatest hazards to be considered?

a. Convective activity on the windward side with mod or severe turbulence

b. Rotor zone on lee side and MTW up to the tropopause

c. Wind shear in the rotor zone on the windward side and MTW increasing in intensity up to the tropopause

d. Icing in lenticular cloud above the mountain ridge

A

b. Rotor zone on lee side and MTW up to the tropopause

63
Q

During straight and level flight at FL300 an aircraft encounters an area of
severe clear air turbulence (CAT). What hazard should be considered?

a. Structural stress reducing the fatigue life of the airframe

b. engine damage due to fuel flow disturbance

c. as approaching aircraft performance ceiling the controls may suffer damage

d. Damage to instruments rendering them unreliable

A

a. Structural stress reducing the fatigue life of the airframe

64
Q

A pilot flying an ILS approach for runway 23 with a south-westerly wind blowing at approx 25kt. The wind speed is decreasing rapidly with height however its direction remains steady. What should the pilot anticipate?

a. Without intervention, the aircraft is likely to fly above the designated glide path

b. Without intervention, the aircraft is likely to balloon in the flare

c. Without intervention, the aircraft is likely
to fly below the designated glide path

d. Without intervention, no significant deviation from the designated glide path is anticipated

A

c. Without intervention, the aircraft is likely
to fly below the designated glide path

65
Q

What are the meteorological prerequisites for a severe tropical storm to develop?

a. High temperature, high humidity

b. Low pressure, low humidity

c.High pressure (>1013 hPa), high temperatures

d. Convergence, low temperature

A

a. High temperature, high humidity

66
Q

The type of lightning visible inside a thunderstorm cell and not in contact with the surface is [ ].

A

[intra-cloud]

67
Q

The most hazardous phase of a thunderstorm’s development is the [ ] phase. Hazards associated with this phase include [ ].

A

[mature] [down bursts, hail, severe icing]

68
Q

An aircraft cruising at FL 300 is accruing airframe ice, without corrective action the aircraft is likely to stall at a [ ] speed and a [ ] angle of attack.

A

[higher] [lower]

69
Q

In order to comply with operational minima a RVR of 550m is required. Which of the following aerodromes would be suitable for landing?

a. EGBB 120750Z 21005KT 0350 R26/0400U FG 07/06 Q1008=

b. EGNX 120750Z 00000KT 0500 R16/0500 FG 05/04 Q1008=

c. EGCC 120750Z 23003KT 0400 R18/0400 FG VV006 05/04 Q1008=

d. EGBE 120750Z 26002KT 1000 R23/0700D BR BKN008 12/10 Q1012=

A

d. EGBE 120750Z 26002KT 1000 R23/0700D BR BKN008 12/10 Q1012=

70
Q

What does the code R24R/P1500 mean?

a. Visibility runway 24 right less than 1500m

b. Visibility along runway 24 right greater than 1500m

c. Runway 24 right available take-off/landing run 1500m

d. Snow clearance in progress on runway 24R, useable length 1500m

A

b. Visibility along runway 24 right greater than 1500m

71
Q

Flying a route from London to Barcelona, when overhead Paris you want to check the weather in the vicinity. What single source of information could you access using VHF?

a. SIGMET
b. ATIS
C. GAMET
d. VOLMET

A

d. VOLMET

72
Q

Refer to the chart below. On a flight from Zurich to Kiev at FL210,
[ ] conditions/hazards are likely to be encountered?

A

[no adverse weather]

73
Q

With reference to the reporting of turbulence, which statement is true?

a. Forecasts rely on satellite detection for the most accurate locations

b. Forecasts rely on pilot reports as turbulence cannot be detected remotely

c. Pilots rely on airborne weather radar to locate turbulence

A

b. Forecasts rely on pilot reports as turbulence cannot be detected remotely

74
Q

Which of the items listed below are broadcast through ATIS? (pick 3)

A

[wind vector] [time] [visibility]

75
Q

Which reports are Meteorological Watch Offices primarily responsible for?

a. Significant Weather Charts

b. SIGMETs and AIRMETs

c. METARs

d. TAFS (Aerodrome Forecasts)

A

b. SIGMETs and AIRMETs

76
Q

The principle role of ground based weather surveillance radar is to [ ].

A

[detect and locate water droplets]

77
Q

When a pilot reports wind shear on approach the [ ] should be included in the message.

A

[aircraft type]

78
Q

Refer to the image below showing a symbol in the ocean to the west of Australia located at S27 E106.

The label ‘Carlos’ refers to [ ].

A

[Tropical cyclone]

79
Q

A flight from London to Kiev is marked on the chart below by a red line.
Which flight hazards can be expected at FL280?

[ ]

A

[Moderate occasionally severe CAT]

80
Q

Using the chart extract below, the approximate wind speed is [ ] and the direction is [ ] in the region marked with the red circle

A

[30mps] [280 degrees]

81
Q

Refer to the chart below.
En-route from Barcelona to Reykjavic, an aircraft is overhead Ireland (highlighted with red square). What are the weather conditions at FL320?

a. 90kt crosswind from the right
b. Moderate turbulence and 110kt crosswind
c. Moderate turbulence and icing
d. Moderate turbulence

A

d. Moderate turbulence

82
Q

Using the chart below for the route highlighted, the average temperature is [ ], wind speed is [ ] and wind direction is
[ ].

A

[-57C] [40kt] [350 degrees]

83
Q

Using the TAF below for Oslo, what is the maximum wind speed expected for ETA 20:00?

TAF - ENGM 280500Z 2806/2906 02005KT CAVOK BECMG 2808/2811
36015KT BECMG 2816/2819 02005KT=

a. less than 1 kt
b. 19 kt
c. 5 kt
d. 15 kt

A

c. 5 kt

84
Q

In the image below, what would you find at ‘X’?

a. warm air ahead of a cold front

b. warm air ahead of a warm front

c. cold air behind a cold front

d. cold air behind a warm front

A

c. cold air behind a cold front

met vle school-finals (32 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions