ATPL Meteorology 3

Question 1

Wind shear is defined as:

Accepted Answer

A rapid change in wind speed or direction over a short distance

Answer

Wind shear is a change in wind speed and/or direction over a relatively short distance in the atmosphere, which can be horizontal or vertical.

Question 2

Thunderstorms are most likely to form in which type of atmospheric condition?

Accepted Answer

Unstable air with high moisture and a lifting mechanism

Answer

Thunderstorms require three ingredients: atmospheric instability, sufficient moisture, and a lifting mechanism to trigger convection.

Question 3

Which statement best describes the tropopause?

Accepted Answer

The boundary between the troposphere and stratosphere where temperature stops decreasing

Answer

The tropopause is the boundary between the troposphere and stratosphere, characterized by an abrupt end to the normal temperature lapse rate — temperature remains constant or begins to rise above it.

Question 4

A TAF forecast covers what standard period in the US?

Accepted Answer

24 or 30 hours

Answer

Terminal Aerodrome Forecasts (TAFs) in the US are issued four times daily and cover either 24 or 30 hours, depending on the airport category.

Question 5

Supercooled large droplets (SLD) icing conditions are especially hazardous because:

Accepted Answer

They can accrete ice beyond the protected surfaces of the aircraft

Answer

SLD icing is dangerous because the large droplet size allows ice to accumulate on unprotected surfaces aft of anti-ice systems, degrading aerodynamics beyond the design envelope.

ATPL - Airline Transport Pilot License Practice Test

ATPL - Airline Transport Pilot License Practice Test

ATPL Meteorology 3