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Question 58-1 : On the ground, an altimeter set to the local pressure indicates ? [ Course specific ]

A height equals to 0 ft.


Question 58-2 : Aviation weather reports. a metar describes the weather ?

Observed at a station at the time of the report.


Question 58-3 : Surface based layers. advection fog forms when ?

Moist air moves from a warm surface to a colder surface.


Question 58-4 : What is the most abundant gas in earth's atmosphere ?

Nitro


Question 58-5 : In the troposphere, where most of our rpas fly, the icao average decrease in temperature, per 1000 ft, is ?

1.98°c.

exemple 74 1.98°c.

Question 58-6 : During the life cycle of a thunderstorm, which stage is characterized predominantly by downdrafts at the cloud base ?

Dissipating stage.

exemple 78 Dissipating stage.

Question 58-7 : In the lower layers of the atmosphere, we can consider that the average pressure decrease with altitude is ?

1 hpa per 28 ft.

exemple 82 1 hpa per 28 ft.

Question 58-8 : In a cumulonimbus cloud, descending air currents can reach a speed of ?

2000 ft/min.

exemple 86 2000 ft/min.

Question 58-9 : By day, a sea breeze will ?

Be onshore due to the pressure drop on land.

exemple 90 Be onshore due to the pressure drop on land.

Question 58-10 : Roll clouds or rotors are likely to be experienced ?

Along the leeward side of a mountain range.

exemple 94 Along the leeward side of a mountain range.

Question 58-11 : Regarding the different gases constituting the atmosphere ?

Their proportions remain the same for all altitudes accessible to light aircraft.

exemple 98 Their proportions remain the same for all altitudes accessible to light aircraft.

Question 58-12 : During summer, on arriving to the specified area for your flight, you observe fog and sunlight slashes through the fog ?

The flight is possible at the end of the morning.

exemple 102 The flight is possible at the end of the morning.

Question 58-13 : During summer, weather associated to a high pressure system is characterized by ?

Clear nights, sunny days without cloud or with small cumulus.

exemple 106 Clear nights, sunny days without cloud or with small cumulus.

Question 58-14 : Without wind, what would be the position of a wind indicator on an aerodrome ?

Completely vertical.

exemple 110 Completely vertical.

Question 58-15 : In meteorology, a low pressure area is called ?

A low.



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