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Ground School > Meterology > Flashcards

Meterology Flashcards

0
Q

What percentage of the atmosphere is each gas?

A

Nitrogen 78%
Oxygen 21%
Other 1%

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1
Q

What are the two main gasses present in the atmosphere?

A

Nitrogen, oxygen

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2
Q

What is the most important component in the air?

A

Water vapour

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3
Q

What is condensation Nuclei?

A

Microscopic particles of dirt or pollen etc. that is suspended in the air which water vapour condenses and forms liquid water droplets

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4
Q

Name the 6 layers of the atmosphere.

A 
Troposphere 
Stratosphere
Mesosphere 
Thermosphere
Ionosphere 
Exosphere
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5
Q

Where does weather occur in the atmosphere.

A

Troposphere

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6
Q

What are the maximum heights in the troposphere.

A

28 000 ft at poles

54 000 ft at equator

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7
Q

What is the lowest temperature in troposphere.

A

-56

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8
Q

What is the maximum height of the stratosphere?

A

160 000 ft

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9
Q

What is the temperature in the stratosphere?

A

Starts at -56 and stays for 30 000 ft then rises to 10

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10
Q

Where is the ozone layer located?

A

80 000 ft

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11
Q

What is the altitude of the upper layer of the mesosphere

A

275 000 ft

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12
Q

What is the temperature of the Mesosphere?

A

10 to -100

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13
Q

What is the temperature in the thermosphere and at what altitude

A

3000 at 49 miles

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14
Q

What does the ionosphere affect?

A

radio waves

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15
Q

Where is the theeshhold of space?

A

90 to 100 miles

16
Q 
Name the ICAO standards. 
Sea level pressure
Sea level temperature 
Air 
Vertical lapse rate
A

29.92” Hg
15 degrees
Air is a perfectly dry gas
1.98/1000 ft

17
Q

Is cold air dense? Why or why not?

A

Not dense as the cold air molecules move slowly and are closer together

18
Q

Is warm air dense? Why or why not?

A

Not dense as the warm particles move quickly and leave more space between each other.

Ground School (3 decks)

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