PPL PPL Aviation Weather Services and Meteorology 2

Question 1

What hazardous weather does a SIGMET warn about?

Accepted Answer

Conditions hazardous to all aircraft such as severe turbulence, severe icing, or volcanic ash

Answer

SIGMETs are issued for meteorological conditions significant to all aircraft including severe turbulence, extreme icing, dust storms, and volcanic ash clouds.

Question 2

How are Winds Aloft forecasts (FB) used in flight planning?

Accepted Answer

To plan fuel burn, flight time, and favorable cruise altitudes based on forecast winds at various levels

Answer

Winds Aloft forecasts provide predicted wind direction, speed, and temperature at various altitudes, enabling pilots to optimize route altitude for tailwinds, fuel efficiency, and flight time.

Question 3

What cloud types and conditions characterize a stable atmosphere?

Accepted Answer

Stratiform (layered) clouds, smooth flight conditions, and reduced visibility in haze

Answer

A stable atmosphere resists vertical mixing, producing flat stratus clouds, steady precipitation, haze, and smooth but often instrument-weather conditions.

Question 4

Why are thunderstorms particularly dangerous to light aircraft?

Accepted Answer

They generate severe turbulence, lightning, large hail, wind shear, and microbursts that can exceed aircraft structural limits

Answer

Thunderstorms can produce turbulence capable of structural failure, wind shear that overwhelms aircraft performance, large hail that destroys windshields, and lightning that disables avionics.

Question 5

What does 'VFR NOT RECOMMENDED' in a weather briefing mean?

Accepted Answer

The briefer advises that conditions are not suitable for VFR flight, though the pilot retains final authority

Answer

'VFR Not Recommended' is the briefer's professional advisory opinion that conditions are hazardous for VFR flight; however, the pilot in command makes the final go/no-go decision.

(PPL) Private Pilot Licence Practice Test

(PPL) Private Pilot Licence Practice Test

PPL PPL Aviation Weather Services and Meteorology 2