CGI Weather & Meteorology 2

Question 1

Which pressure system is typically associated with clear, stable weather?

Accepted Answer

High pressure (anticyclone)

Answer

Low pressure (cyclone)

Answer

Occluded front

Answer

Trough

Question 2

What is the dew point spread, and why is it significant to pilots?

Accepted Answer

The difference between temperature and dew point; small spreads indicate fog or cloud formation risk

Answer

The altitude at which dew forms; higher spreads mean more turbulence

Answer

The rate of dew point change with altitude; used for icing calculations

Answer

The difference between high and low dew points in a frontal zone

Question 3

Where is wind shear most likely to be encountered near a thunderstorm?

Accepted Answer

Near the surface directly below the storm and at all altitudes within 20 NM

Answer

Only at high altitudes above the anvil

Answer

Only in the stratiform rain region behind the storm

Answer

Exclusively in the anvil cloud outflow

Question 4

What type of icing is the most hazardous to aircraft?

Accepted Answer

Clear (glaze) ice

Answer

Rime ice

Answer

Mixed ice

Answer

Frost

Question 5

A pilot observes a rapidly falling barometric pressure. What does this typically indicate?

Accepted Answer

Approaching low-pressure system with deteriorating weather

Answer

Approaching high-pressure system with improving weather

Answer

Stable weather with little change expected

Answer

Cooling temperatures but no precipitation

Question 6

What is the primary cause of convective turbulence?

Accepted Answer

Unequal surface heating causing rising thermals

Answer

Jet stream wind shear

Answer

Mountain wave activity

Answer

Temperature inversions at altitude