Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Private Pilot Checkride > Weather > Flashcards

Weather Flashcards

You may prefer our related Brainscape-certified flashcards:
Charter Pilot (Part 135) - Oral flashcards
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
Q

What is the definition of freezing level?

A

Lowest altitude over a given area which the air temperature reaches 0 degrees Celsius.

26
Q

What conditions are necessary for structural icing to occur?

A

Visible moisture and below freezing temperatures at the point moisture strikes the aircraft

27
Q

What are the categories of icing?

A

Structural icing, instrument icing, induction icing

28
Q

What is structural icing?

A

Ice that forms on the aircrafts surface

29
Q

What is induction icing?

A

Ice that forms in the engines induction system, robbing engine of airflow

30
Q

What is instrument icing?

A

Ice that forms on the instruments ( pitot tube, static port )

31
Q

What are the three types of structural icing?

A

Clear, rhyme, mix

32
Q

What is clear ice?

A

Runback ice. Flows over the aircrafts surface and freezes as a sheet of solid ice

33
Q

What is rime ice?

A

Forms when drops are small, usually from light drizzle. Freezes at the leading edge

34
Q

What is mixed ice?

A

Drops vary in size. Mix of both, very rough

35
Q

What action is recommended if you encounter icing conditions?

A

Turn around

36
Q

Is frost hazardous to flight?

A

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
Q

What factors must be present for a thunderstorm to form?

A

Lifting action
Unstable atmosphere
Visible moisture

38
Q

What are the three stages of a thunderstorm?

A

Cumulus- updrafts
Mature- downdrafts ( thunderstorms)
Dissipating- downdrafts

39
Q

How does fog form?

A

When temperature and dew point become almost identical.

40
Q

What are some types of fog?

A 
Radiation 
Upslope 
Advection 
Steam 
Precipitation induced
41
Q

What causes radiation fog to form?

A

The ground cools the air to the dew point on calm clear nights

42
Q

What is advection fog?

A

Forms when warm humid air transports over a cold surface. Mainly along coastal areas.

43
Q

What is upslope fog?

A

Result of moist, stable air being cooled as it moves up sloping terrain. Extends to high altitudes

44
Q

What is wind shear?

A

Rate of change of wind velocity and speed per unit distance. Can occur at any level but usually around thunderstorms, clear air turbulence

45
Q

Why can wind shear be dangerous?

A

Rapid changes in wind speed and direction can be dangerous to Pilots operating at low altitudes and approaches

46
Q

How do you obtain a weather briefing?

A

1-800-WX-BRIEF

FSS

47
Q

What type of weather briefings are available?

A

Standard
Abbreviated
Outlook

48
Q

What is FIS-B?

A

Flight Information Service Broadcast

Ground based broadcast service provided through ADSB network. Allows pilot to receive and display broadcast weather and aeronautical information

49
Q

Can FIS-B be useful in navigating around thunderstorms?

A

No. It is not real time, recent rather than current. Can be 15 min old. Not appropriate for tactical avoidance

50
Q

What is a METAR?

A

Hourly surface observation of conditions at an airport

51
Q

What is a PIREP?

A

Personal pilot report that actually exists in the air

52
Q

What is a convective sigmet?

A

Severe or greater turbulence, severe icing, low level wind shear, thunderstorms

53
Q

How long are convective SIGMETS good for?

A

2 hours

54
Q

What is a non convective sigmet?

A

Potentially hazardous weather to all aircraft good for 4 hours

55
Q

Sigmets associated with tropical cyclones or volcanic ash are good for how long?

A

6 hours

56
Q

When are SIGMETS issued?

A
  • severe icing not associated with thunderstorms
  • severe turbulence
  • dust storms/sand storms
  • volcanic ash
57
Q

What is an AIRMET?

A

Significant weather information with intensities lower than SIGMETS

58
Q

What are the different types of AIRMETS?

A

Sierra- IFR confusions and mountain obscurations
Tango- moderate turbulence, surface winds greater than 30 knots, low level wind shear
Zulu- moderate icing

59
Q

What is a convective outlook chart?

A

Depicts areas to have potential for severe and non severe weather threats.

60
Q

Describe severe convective SIGMET characteristics

A

Tornadoes, wind gusts 50 knots or greater and hail 3/4 inches diameter in size

61
Q

What is a microburst?

A

Small, severe downdrafts

Private Pilot Checkride (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions