Level 3 exam

Question 1

what are the 3 major gases in the air?

Answer 1

Nitrogen78%, oxygen21% and other1%

Question 2

The higher you go___and___decreases.

Answer 2

density and temperature.

Question 3

Why is water vapor important?

Answer 3

Allows clouds, precipitation, animals and plants.

Question 4

what are the four parts of the atmosphere?

Answer 4

Troposphere, stratosphere, mesosphere, thermosphere

Question 5

what happens in the troposphere?

Answer 5

weather. water vapor is here.

Question 6

what is in the stratosphere?

Answer 6

The Ozone layer that protects earth from solar radiation.

Question 7

what happens in the mesosphere?

Answer 7

temperature reaches 100 degrees Celsius. Meteorites burn up here.

Question 8

what happens to the thermosphere?

Answer 8

The thermosphere is the area that is affected by solar radiation.

Question 9

What is jet stream?

Answer 9

It is the upper troposphere.

Question 10

what is between each layer of the atmosphere?

Answer 10

tropopause, mesopause etc

Question 11

ICAO assumes what 4 things about North Americas atmosphere?

Answer 11

Air is a dry gas
Mean sea level 29.92 inch of mercury
mean sea level temp of 15°c
Temperature decrease of 1.98°c per 1000ft

Question 12

The decrease in___and___is/isn’t constant.

Answer 12

temperature and density is not constant.

Question 13

ICAO’s assumptions are based off of what seasons?

Answer 13

Summer and winter

Question 14

Capacity for expansion is?

Answer 14

air forced to rise

Question 15

Capacity for compression is?

Answer 15

air becoming dense and cool

Question 16

What 3 things affects the atmosphere?

Answer 16

Temperature, density and pressure

Question 17

What principals influence longitudinal stability?

Answer 17

the horizontal stabilizer and the center of gravity.

Question 18

vertical air causes what?

Answer 18

expansion and compression

Question 19

air moves__to__.

Answer 19

horizontally to fill gaps

Question 20

Cumulus clouds are formed in___air.

Answer 20

unstable

Question 21

Stratus is formed in___air

Answer 21

stable

Question 22

cumulus clouds indicate what in the weather?

Answer 22

warm days turning to stormy

Question 23

stratus clouds form in what type of weather?

Answer 23

can from in any but prefer cold weather.

Question 24

what are the four types of clouds?

Answer 24

low(stratus),middle(alto),high(cirrus),vertical development(cumulus)

Question 25

What type of cloud is extremely dangerous to fly through?

Answer 25

cumulonimbus

Question 26

good weather is represented by___clouds.

Answer 26

cirrus

Question 27

Bad weather is indicated by ___clouds.

Answer 27

alto or cumulonimbus.

Question 28

light precipitation comes from what types of clouds?

Answer 28

stratus and nimbostratus

Question 29

what is the stereotype cloud?

Answer 29

cumulus

Question 30

Aspects of stable air are....

Answer 30

poor visibility, stratus, steady precipitation, steady wind

Question 31

Aspects of unstable air are....

Answer 31

good visibility, cumulus, showery, gusty wind, turbulence

Question 32

What are the five kinds of lifting agents?

Answer 32

convection, convergence, orographical lift, frontal lift and mechanical turbulence.

Question 33

what two things together shape clouds?

Answer 33

lifting agents and air stability

Question 34

what decides the cloud type?

Answer 34

air stability

Question 35

what decides the air stability?

Answer 35

lifting agents

Question 36

what is stability?

Answer 36

the tendency of an aircraft to remain upwards, straight and level during flight

Question 37

what is static stability?

Answer 37

initial tendency of an aircraft to correct itself

Question 38

what is dynamic stability?

Answer 38

the overall tendency of an aircraft to correct itself

Question 39

what is positive stability?

Answer 39

aircraft returns with no corrections from pilot

Question 40

what is neutral stability?

Answer 40

stays at changed attitude

Question 41

what is negative stability?

Answer 41

attitude keeps getting worse

Question 42

what is longitudinal stability, and what part of the plane affects it?

Answer 42

stability of lateral axis aka pitch heavy nose

Question 43

what is directional stability, and what part of the plane affects this?

Answer 43

stability of vertical axis aka yaw fin/tail

Question 44

define wind

Answer 44

horizontal movement of air

Question 45

define isobars

Answer 45

areas of like pressure

Question 46

define aspects of low pressure

Answer 46

cyclones, low pressure center, 800km/day summer 1100km/day during winter, not in one place for long, counter clockwise spin

Question 47

define aspects of high pressure

Answer 47

anti cyclones, high pressure centers, stays in one place for long periods of time, clockwise spins

Question 48

what is relative humidity?

Answer 48

actual % of water in air

Question 49

saturated air has a humidity of__?

Answer 49

100

Question 50

what is dew point?

Answer 50

The dew point is the temperature to which air must be cooled to become saturated Small drops in temperature causes clouds and or precipitation

Question 51

is it a big or little difference between dewpoint and temperature?

Answer 51

little

Question 52

what affects longitudinal stability?

Answer 52

horizontal stabilizers and center of gravity

Question 53

is wind parallel or not parallel to isobars

Answer 53

it is parallel

Question 54

what is convection

Answer 54

water heated by the sun after touching the earths surface

Question 55

what is orographical lift

Answer 55

wind forces upwards by a mountain

Question 56

capacity for expansion creates what

Answer 56

clouds

Question 57

what is needed for air to become saturated

Answer 57

constant pressure

Question 58

what is frontal lift?

Answer 58

warm air going over cold air.