PPL Meteorology 03
Flight Hazards
Icing
Section titled "Icing"1 / 7
Clear ice:
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In icing conditions:
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Hoar frost:
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Select the correct option(s):
5 / 7
Rime ice:
6 / 7
In icing conditions:
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How can icing conditions and icing effects be avoided?
Turbulence
Section titled "Turbulence"1 / 2
When the wind flows around an obstruction:
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Select the correct option(s):
Wind shear
Section titled "Wind shear"1 / 8
Wind shear is the change in:
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Wind shear avoidance steps:
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Conditions where wind shear exists include:
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Wind shear conditions:
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Atmospheric conditions where wind shear exists include:
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Wind shear avoidance during an approach:
7 / 8
In a wind shear situation, when the aeroplane crosses the shear plane and the headwind increases:
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Wind shear avoidance during take-off:
Thunderstorms
Section titled "Thunderstorms"1 / 23
In the towering cumulus stage:
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Select the correct option regarding thunderstorms:
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Select the correct option(s):
4 / 23
Cumulonimbus development associated with fronts:
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Select the correct option.
6 / 23
Thunderstorms which generally produce the most intense hazard to aircraft are:
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In the dissipating stage of a thunderstorm:
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Convection type Cumulonimbus:
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An aircraft approaching a downburst will first encounter:
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Select the correct option(s):
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What is a strong downdraft that causes an outflow of damaging winds at or near the surface?
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The conditions necessary for the formation of thunderstorms:
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Select the correct option(s):
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Mammatus clouds (Cumulonimbus mammatus):
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Select the correct option(s):
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As the aircraft passes thorough the downburst, after the strong headwind the wind becomes a strong tailwind, and:
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Thunderstorm avoidance can mean:
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What is a downburst affecting an area 4 km in diameter or less?
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In the mature stage:
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Static dischargers:
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From the following, select the correct option.
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The triboelectric effect:
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Select the correct option(s):
Inversions
Section titled "Inversions"1 / 5
Select the correct option(s):
2 / 5
When frontal clouds approach a mountain chain:
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Vertical currents within the oscillations of mountain waves can reach __(1)__.
The combination of these strong vertical currents is called __(2)__.
4 / 5
Select the correct option(s):
5 / 5
On the leeward side of mountain ranges, the air:
Hazards in mountainous areas
Section titled "Hazards in mountainous areas"1 / 3
The sign of a mountain wave can be:
2 / 3
Select the correct option(s):
3 / 3
Select the correct option(s):
Visibility-reducing phenomena
Section titled "Visibility-reducing phenomena"1 / 7
If you encounter blowing snow, to what minimum can the visibility be reduced?
2 / 7
Solid particles acting as a visibility reducer is/are:
3 / 7
You take-off from a coastal airfield in hazy conditions during sunrise. Which of the following runways will provide the WORST visibility?
4 / 7
In unstable air, surface visibility is most likely to be restricted by:
5 / 7
In terms of visibility which of the following phenomena causes the greatest obscuration?
6 / 7
Select the correct option(s):
7 / 7
Reduction in visibility due to precipitation depends on: