CPC Weather Interpretation & Meteorology for Controllers 2

Question 1

What is wind shear and why is it critical information for approach controllers?

Accepted Answer

A sudden change in wind speed and/or direction that can cause rapid airspeed changes on approach

Answer

Wind shear is a sudden change in wind velocity or direction that can cause dangerous airspeed fluctuations during approach and departure phases.

Question 2

A microburst is characterized by which feature that makes it particularly dangerous?

Accepted Answer

A downdraft that produces increasing headwind then rapid tailwind loss

Answer

A microburst produces an initial performance-increasing headwind followed by a severe performance-decreasing tailwind, making it extremely hazardous on approach.

Question 3

When should a controller issue a low-level wind shear (LLWS) advisory to pilots?

Accepted Answer

Whenever PIREPs or LLWAS alerts indicate wind shear below 2,000 ft AGL

Answer

Controllers must promptly relay wind shear advisories when LLWAS alerts or PIREPs report wind shear conditions below 2,000 ft AGL.

Question 4

What does a pilot report of 'moderate icing in cloud' indicate to an approach controller?

Accepted Answer

Ice accumulation is rapid enough to affect performance and may warrant re-routing

Answer

Moderate icing means ice accumulates rapidly enough to require frequent use of de-icing equipment and may be hazardous if prolonged, warranting consideration of alternate routing.

Question 5

What weather phenomenon is associated with a temperature inversion and can produce smooth but disorienting flying conditions?

Accepted Answer

Radiation fog and restricted visibility

Answer

Temperature inversions trap moisture near the surface, producing radiation fog and significantly restricted visibility, especially in early morning hours.

(CPC) Certified Professional Controller Practice Test

(CPC) Certified Professional Controller Practice Test

CPC Weather Interpretation & Meteorology for Controllers 2