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

Steady trade winds at altitude

Answer

Calm conditions at the tropopause

Answer

High-level turbulence above FL450

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

Stable, stratiform air masses

Answer

Cold, dry polar air

Answer

Subsiding high-pressure systems

Question 3

Which statement best describes the tropopause?

Accepted Answer

The boundary between the troposphere and stratosphere where temperature stops decreasing

Answer

The boundary between the stratosphere and mesosphere

Answer

The layer where all weather occurs

Answer

The altitude where ozone concentration peaks

Question 4

A TAF forecast covers what standard period in the US?

Accepted Answer

24 or 30 hours

Answer

6 hours

Answer

12 hours

Answer

48 hours

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

They only affect jet engines

Answer

They cause fuel freezing at cruise altitude

Answer

They are easy to detect with onboard radar

Question 6

An area of high pressure (anticyclone) in the Northern Hemisphere has winds that circulate:

Accepted Answer

Clockwise and outward

Answer

Counterclockwise and inward

Answer

Counterclockwise and outward

Answer

Clockwise and inward