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Meteorology - ATPL - Airline Transport Pilot license
Meteorology - ATPL - Airline Transport Pilot license
Test 10 domande Meteorology, tempo libero
Cambia Materia
Nuovo Test!
1 - The isobars drawn on a surface weather chart represent lines of equal pressure
Reduced to sea level
At a determined density altitude
At height of observatory
At flight level
2 - In order to calculate QFE from QNH, which of the following must be known ?
Temperature at the airfield.
Elevation of the airfield and the temperature at MSL.
Elevation of the airfield.
Elevation and the temperature at the airfield.
3 - Absolute instability is said to exist whenever the environmental lapse rate
Is less than the dry adiabatic lapse rate
Is less than the saturated adiabatic lapse rate
Exceeds the dry adiabatic lapse rate
Is between the dry and saturated adiabatic lapse rate
4 - An air mass acquires its basic properties
By the influence of jet streams
By stagnation of the air for a long period of time over areas having particular characteristics
In the westerlies of the mid-latitudes
By widespread thunderstorms
5 - What is a downburst?
A concentrated downdraft with high speeds and a higher temperature than the surrounding air.
An extremely strong wind gust in a tropical revolving storm.
A concentrated downdraft with high speeds and a lower temperature than the surrounding air.
A small low pressure system where the wind circulates with very high speeds.
6 - Stratus formed by turbulence will occur when
The wind speed is less than 10 kt and the air is heated by the earth's surface
The wind speed is greater than 10 kt and the condensation level is situated just above the turbulent layer
In the friction layer mixing occurs by turbulence and the condensation level is situated below the top of the turbulent layer
Absolute instability exists at low level
7 - What are squall lines?
The surface weather associated with upper air troughs.
Unusual intensive cold fronts.
The paths of tropical revolving storms.
Bands of intensive thunderstorms.
8 - When fog is reported, the visibility is below
1.5 km
0.8 km
3 km
1 km
9 - A plain in Western Europe with an average elevation of 500 m (1600') above sea level is covered with a uniform AC layer of cloud during the summer months. At what height above the ground is the base of this cloud to be expected?
1500 - 7000' above the terrain
100 - 1500' above the terrain
15000 - 25000' above the terrain
7000 - 15000' above the terrain
10 - The maximum vapour pressure over a flat supercooled water surface and the maximum vapour pressure over a flat ice surface of the same temperature are compared. The maximum vapour pressure is
Equal over both surfaces
Smaller over the water surface
The same over both surfaces if the air pressure is the same
Greater over the water surface
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Cambia Materia
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