Weather

Question 1

Flying from hot to cold

Answer 1

From high to low look out below

Your altimeter will read a higher altitude than actual

Question 2

The amount of moisture that air can hold is directly dependent on

Answer 2

Temperature

Question 3

The amount of water vapor present in the atmostphere is

Answer 3

Humidity

Question 4

Dew point

Answer 4

The temperature at which air must be cooled to become saturated with water vapor

Question 5

Convective currents

Answer 5

Upward and downward motion

Question 6

Wind

Answer 6

Horizontal motion

Question 7

High pressure

Answer 7

Cold temperature

Question 8

Low pressure

Answer 8

Warm air

Question 9

Surface based Temperature inversion

Answer 9

On cold clear nights when the temperature of the earths surface is cold and can cause turbulent conditions

Question 10

Normal temperature inversion

Answer 10

Temperature of air rises with altitude which are normally shallow layers of smooth air.

If relative humidity is high it can contribute to clouds, haze, or fog

Question 11

Mountain waves

Answer 11

Formed when strong winds blow perpendicular across a mountain range.

When sufficient moisture is present, mountain waves produce cap clouds, CCSL, ACSL, and rotor clouds

Question 12

Taking off in a headwind or tailwind?

Answer 12

Head wind because a tailwind will decrease decrease performance

Question 13

Crosswind correction for taxi

Answer 13

Tailwind-down and away

Headwind- into with neutral aileron

Question 14

Cloud classification

Answer 14

High, middle, and low, and vertical development

Question 15

What is needed for clouds to form

Answer 15

Water vapor

Condensation nuclei (dust, salt, or smoke)

A method by which air can be cooled

Question 16

Low clouds

Answer 16

At or below 6500

Stratus, stratocumulus, and nimbostratus

Low ceilings hampering visibility

Question 17

When air cools and reaches its saturation point

Answer 17

The invisible water vapor changes into a visible form

Question 18

Cumulo

Answer 18

Fluffy

Question 19

Nimbo

Answer 19

Raining

Question 20

Middle clouds

Answer 20

6500-20000

Altostratus and altocumulus

May be turbulent and contain moderate icing

Question 21

High clouds

Answer 21

20000 and above

Cirrus, cirrostratus, and cirrocumulus

Pose no real threat to turbulence

Question 22

Unstable air clouds and conditions

Answer 22

Cumuliform clouds

Showery precipitation

Rough air

Good visibility

Question 23

Stable air clouds and conditions

Answer 23

Stratiform clouds and fog

Continuous precip

Smooth air

Poor viz

Question 24

Thunderstorms

Answer 24

Moisture/sufficient water vapor
Lifting action
Unstable air/unstable lapse rate

Question 25

Cumulus stage of thunderstorm

Answer 25

Lifting action, moisture and instability, clouds continue to increase in vertical height

Question 26

Mature stage of thunderstorm

Answer 26

Within 15 minutes, the most violent time period, rain or hail, down-rushing air increases surface winds and decrease temperature, anvil shape at the top

Question 27

Dissipating stage of thunderstorm

Answer 27

Downdrafts spread out and replace the updrafts needed to sustain the storm

Question 28

Type of thunderstorm

Answer 28

Air mass thunderstorm Steady state thunderstorm

Question 29

Steady state thunderstorm

Answer 29

Updrafts become stronger snd last much longer than air mass thunderstorm

Question 30

Air mass thunderstorm

Answer 30

Occur at random in unstable air last only and hour or two and produce only moderate wind gusts

Question 31

Wind shear/ LLWS

Answer 31

Sudden drastic change in wind speed or direction over a very small area LLWS- commonly associated with passing frontal systems, thunderstorms, and surface temperature inversions

Question 32

Microburst

Answer 32

Horizontal diameter of 1-2 miles Depth of 1000 ft Lifespan 5-15 minutes Downdrafts of up to 6000 fpm Hazardous wind direction changes

Question 33

Virga

Answer 33

Rain that evaporated before hitting the ground Intense rain shaft

Question 34

Thunderstorm and hail

Answer 34

Hail should be anticipated with any thunderstorm,especially beneath the anvil 1/2 inch and greater size hail can damage an aircraft in a few seconds

Question 35

Icing conditions for clear, mixed, and rime

Answer 35

This may occur in thunderstorm updrafts which support large amount of water and large droplet sizes From 2 to -10 C = clear From -10 to -15C = mixed From -10 to -20C = Rime

Question 36

With ice how is ice predicted to disrupt with the airfoil

Answer 36

Destroys or interrupts smooth laminar airflow and causes an increased parasitic drag

Question 37

If you’ve got ice in the wings what would you do

Answer 37

Get lower in elevation, point the airfoil towards the sun, get to the nearest airport snd land

Question 38

How far does FAA recommend you stay away from a T-storm

Answer 38

20 miles

Question 39

What are other obstructions to visibility

Answer 39

Smoke from wildfire Volcanic ash contains rock and glass particles Haze from air pollution