Aviation weather reports a metar describes the weather ? [ Course specific ]

Question 58-1 : Observed at a station at the time of the report expected at a station at a given time expected at a station over a twelve hour period observed at a station during the previous day

Surface based layers advection fog forms when ?

Question 58-2 : Moist air moves from a warm surface to a colder surface the cold ground cools the air in contact with it at night moist air is influenced by orographic effect moist cool air moves from a cold surface to a warm surface

What is the most abundant gas in earth's atmosphere ?

Question 58-3 : Nitrogen ozone oxygen carbon dioxide

In the troposphere where most of our rpas fly the icao average decrease in ?

Question 58-4 : 1 98°c 5°c 0 65°c 0 2°c

During the life cycle of a thunderstorm which stage is characterized ?

Question 58-5 : Dissipating stage cumulus stage mature stage tornado stage

In the lower layers of the atmosphere we can consider that the average pressure ?

Question 58-6 : 1 hpa per 28 ft 6 5 hpa per 28 ft 1 hpa per 1000 ft 1 hpa per 100 m

In a cumulonimbus cloud descending air currents can reach a speed of ?

Question 58-7 : 2000 ft/min 100 ft/min 300 ft/min 500 ft/min

By day a sea breeze will ?

Question 58-8 : Be onshore due to the pressure drop on land be onshore due to the pressure increase on land be offshore due to the oceanic lift be offshore due to the oceanic sink

Roll clouds or rotors are likely to be experienced ?

Question 58-9 : Along the leeward side of a mountain range on the ridge of a mountain range along the windward side of a mountain range in the ascendant area of a mountain range

Regarding the different gases constituting the atmosphere ?

Question 58-10 : Their proportions remain the same for all altitudes accessible to light aircraft their proportions increase with altitude oxygen is concentrated in the lower layers nitrogen occupies the upper layers their proportions decrease with altitude

During summer on arriving to the specified area for your flight you observe fog ?

Question 58-11 : The flight is possible at the end of the morning you will be able to take off in 30 minutes you can take off in the afternoon the flight is not possible today you postpone the flight for the next day

During summer weather associated to a high pressure system is characterized by ?

Question 58-12 : Clear nights sunny days without cloud or with small cumulus many foggy days and continuous rains during nights clear nights with fair weather cumulus clouds days without cloud or advection fogs continuous rainy days and foggy nights

Without wind what would be the position of a wind indicator on an aerodrome ?

Question 58-13 : Completely vertical 5 degrees below the horizon 30 degrees below the horizon 60 degrees below the horizon

In meteorology a low pressure area is called ?

Question 58-14 : A low an anticylcone a hurricane a thalweg

In meteorology a high pressure area is called ?

Question 58-15 : An anticylcone a low a hurricane a thalweg