Aviation Weather & Meteorology 2

Question 1

In a METAR, the remark 'TS' indicates which condition?

Accepted Answer

Thunderstorm

Answer

Tailwind shear

Answer

Towering cumulus

Answer

Thin stratus

Question 2

What is a microburst?

Accepted Answer

An intense, localized downdraft that spreads out at the surface causing dangerous wind shear

Answer

A sudden gust of wind exceeding 50 knots at altitude

Answer

A type of mountain wave turbulence

Answer

A vertical updraft inside a cumulonimbus cloud

Question 3

What cloud type is most associated with severe turbulence and icing?

Accepted Answer

Cumulonimbus

Answer

Stratus

Answer

Cirrus

Answer

Altocumulus

Question 4

A Wind Shear PIREP containing 'MDT LLWS' indicates which condition?

Accepted Answer

Moderate low-level wind shear

Answer

Mild downward turbulence with low winds

Answer

Moderate layered wind speed

Answer

Mild lateral wind shear

Question 5

At what relative humidity does structural icing typically begin to form on an aircraft?

Accepted Answer

100% relative humidity with temperatures between 0°C and -20°C

Answer

Any humidity at temperatures below -40°C

Answer

50% relative humidity with any subfreezing temperature

Answer

Only inside cumulonimbus clouds

Question 6

What is the meaning of the METAR sky condition 'BKN025'?

Accepted Answer

Broken clouds at 2,500 ft AGL

Answer

Blue-sky ceiling at 25,000 ft MSL

Answer

Broken overcast at 250 ft MSL

Answer

Below-normal skies at 2,500 ft MSL