Weather Questions 2 Flashcards

1
Q

OCNL EMBD CB indicates

A

1/8 to 4/8 coverage.

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2
Q

450/XXX indicates

A

the tops at FL450 and bases below FL240.

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3
Q

in the Winds and Temperatures Aloft Forecast (FD): When is the temperature at one of the forecast altitudes omitted at a specific location or station

A

When no temperatures are forecast for the 3,000’ level or any level within 2,500’ of station elevation.

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4
Q

Test data: ice, snow, or frost having a thickness and roughness similar to medium or coarse sandpaper
on the leading edge and upper surface of an airfoil can RESULTS?

A

reduce lift by as much as 30 percent

increase drag by 40 percent.

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5
Q

Where does wind shear occur?

A

With either a wind shift or a wind speed gradient at any level in the atmosphere.

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6
Q

Temperature 11 C is more than expected, moisture is_____

A

doubled

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7
Q

Wind is southerly and stronger that expected, In west weather is

A

worst

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8
Q

Terminal Aerodrome Forecast length

A

24 to 30 hours

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9
Q

Does the type of aircraft matter for PRIEP reports

A

yes

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10
Q

What does a sigmet include?

A

Weather Condition
Sever icing
Server or extreme clear turbulence
Dust and sand storms

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11
Q

What does convective sigmets include?

A

Thunderstorms

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12
Q

What is the first step when planning the flights?

A

Know Lows and Highs

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13
Q

What are the reports that you have to look?

A
Metars
Prieps
Radar
Airmets
Sigmets
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14
Q

Life stage of a thunderstorm?:

A

1) Cumulus
2) Mature (precipitation)
3) Dissipating (downdrafts)

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15
Q

Distance of a thunderstorm gust

A

15-20miles

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16
Q

Distance to stat away from a thunderstorm

A

5-20 miles

17
Q

How does an anvil happen?

A

Small cumulus cloud+ Warm air raises with updraft+ Spreads

18
Q

What are the two ways to recieve data links?

A

ADS-B Ground Based

Siruis X Satellite

19
Q

When planning with weather, Golden Rules

A

1) Start with big picture
2) Remember that weather is delayed 15-20mins
3) Deviate around the weather systems
4) Use all weather resources
5) Eyes are the winners
6) Always ask if the weather is convective

20
Q

4 elements to consider on a radar?

A

1) Shape
2) Intensity
3) Gradient
4) Height

21
Q

Do you need to get the cloud tops?

22
Q

What is the general ILS visibility DA?

A

1/2 Miles and 1800 RVR with DA 200 AGL

23
Q

What is the general Non pricision MDA and visibility

A

1/2 and 1mile

MDA 400-600

24
Q

In icing don’t or do use the flaps during approach

25
What are the ice protection systems?
Boot System Propeller reheating elements Anti ice fluid discharge at propeller Fluid or electronically heated windshield
26
Greatest turbulence is found inside or outside of a thunderstorms
outside
27
Propeller vertical gust tolerance
30-50 ft per second
28
What does a thunderstorm need?
1) lifting 2) moisture 3) Instability
29
2 thunderstorm types
1) airmass (lifting with heating) | 2) frontal
30
Where do you find the embedded thunderstorms?
stationary or warm frontal zones