Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Private Pilot Checkride > Weather > Flashcards

Weather Flashcards

(61 cards)

Start Studying
1
Q

State the general characteristics in regard to the flow of air around a low pressure system

A

inward, upward, and counterclockwise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

State the general characteristics in regard to flow of air around a high pressure system

A

outward, downward, and clockwise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What kind of weather can you expect around a low pressure system?

A

rising air, expect cloudiness, precipitation and bad weather

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What kind of weather can you expect around a high pressure system?

A

area of descending air, expect dissipating clouds and good weather

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What types of fronts are there?

A

Cold front, occluded front, warm front, stationary front

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a cold front?

A

a mass of cold, dense and stable air replaces a body of warmer air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is an occluded front?

A

Occurs when a fast moving front catches up with a slower moving front

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a warm front?

A

Boundary area formed when a warm air mass contacts and flows over a colder air mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a stationary front?

A

when two air masses are relatively equal, boundary remains stationary and influences local weather for days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What weather can you expect near a cold front?

A

After passage: Towering cumulus or cumulonimbus clouds, heavy rain, lightening, thunder or hail, possible tornadoes.
During passage: poor visibility, winds gusting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What kind of weather can you expect near a warm front?

A

After passage: stratified clouds, drizzle, low ceilings and poor visibility, variable winds and rising temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a trough?

A

Area of low pressure. Can’t move outward or downward, so rises

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is a ridge?

A

Area of high pressure. Descending air - better weather

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the standard temperature and pressure values for sea level?

A

15 degrees Celsius and 29.92 inches mercury

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are isobars?

A

Line on weather chart that connects areas of equal pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What information does it provide when isobars are close together?

A

Strong winds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the name of the force that deflects wins to the right in the northern hemisphere and left in the southern?

A

Coriolis force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

At what rate does atmospheric pressure decrease with an increase in altitude?

A

1 inch mercury per 1,000 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is dew point?

A

The temperature at which air must be cooled to become saturated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What can you expect when temperature and dew point are close together?

A

Fog, poor visibility, haze, dew

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What determines the type and vertical extent of clouds?

A

Stability of atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What weather can you expect in a stable atmosphere?

A

Stratiform clouds, smooth turbulence, steady precipitation and poor visibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What kind of weather can you expect in an unsteady atmosphere?

A

Cumuliform clouds, rough turbulence, showery precipitation and good visibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What type of meteorological factors concern icing?

A

Location of fronts, cloud layers, freezing levels, air temperature and pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is the definition of freezing level?
Lowest altitude over a given area which the air temperature reaches 0 degrees Celsius.
26
What conditions are necessary for structural icing to occur?
Visible moisture and below freezing temperatures at the point moisture strikes the aircraft
27
What are the categories of icing?
Structural icing, instrument icing, induction icing
28
What is structural icing?
Ice that forms on the aircrafts surface
29
What is induction icing?
Ice that forms in the engines induction system, robbing engine of airflow
30
What is instrument icing?
Ice that forms on the instruments ( pitot tube, static port )
31
What are the three types of structural icing?
Clear, rhyme, mix
32
What is clear ice?
Runback ice. Flows over the aircrafts surface and freezes as a sheet of solid ice
33
What is rime ice?
Forms when drops are small, usually from light drizzle. Freezes at the leading edge
34
What is mixed ice?
Drops vary in size. Mix of both, very rough
35
What action is recommended if you encounter icing conditions?
Turn around
36
Is frost hazardous to flight?
Yes. It spoils the airflow over the top of the wing, causing it to slow down which could result in a loss of lift.
37
What factors must be present for a thunderstorm to form?
Lifting action Unstable atmosphere Visible moisture
38
What are the three stages of a thunderstorm?
Cumulus- updrafts Mature- downdrafts ( thunderstorms) Dissipating- downdrafts
39
How does fog form?
When temperature and dew point become almost identical.
40
What are some types of fog?
``` Radiation Upslope Advection Steam Precipitation induced ```
41
What causes radiation fog to form?
The ground cools the air to the dew point on calm clear nights
42
What is advection fog?
Forms when warm humid air transports over a cold surface. Mainly along coastal areas.
43
What is upslope fog?
Result of moist, stable air being cooled as it moves up sloping terrain. Extends to high altitudes
44
What is wind shear?
Rate of change of wind velocity and speed per unit distance. Can occur at any level but usually around thunderstorms, clear air turbulence
45
Why can wind shear be dangerous?
Rapid changes in wind speed and direction can be dangerous to Pilots operating at low altitudes and approaches
46
How do you obtain a weather briefing?
1-800-WX-BRIEF | FSS
47
What type of weather briefings are available?
Standard Abbreviated Outlook
48
What is FIS-B?
Flight Information Service Broadcast Ground based broadcast service provided through ADSB network. Allows pilot to receive and display broadcast weather and aeronautical information
49
Can FIS-B be useful in navigating around thunderstorms?
No. It is not real time, recent rather than current. Can be 15 min old. Not appropriate for tactical avoidance
50
What is a METAR?
Hourly surface observation of conditions at an airport
51
What is a PIREP?
Personal pilot report that actually exists in the air
52
What is a convective sigmet?
Severe or greater turbulence, severe icing, low level wind shear, thunderstorms
53
How long are convective SIGMETS good for?
2 hours
54
What is a non convective sigmet?
Potentially hazardous weather to all aircraft good for 4 hours
55
Sigmets associated with tropical cyclones or volcanic ash are good for how long?
6 hours
56
When are SIGMETS issued?
- severe icing not associated with thunderstorms - severe turbulence - dust storms/sand storms - volcanic ash
57
What is an AIRMET?
Significant weather information with intensities lower than SIGMETS
58
What are the different types of AIRMETS?
Sierra- IFR confusions and mountain obscurations Tango- moderate turbulence, surface winds greater than 30 knots, low level wind shear Zulu- moderate icing
59
What is a convective outlook chart?
Depicts areas to have potential for severe and non severe weather threats.
60
Describe severe convective SIGMET characteristics
Tornadoes, wind gusts 50 knots or greater and hail 3/4 inches diameter in size
61
What is a microburst?
Small, severe downdrafts

Private Pilot Checkride (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions