Lapse Rates and Clouds

What type of stability could you assume from the air depicted in this picture?

• Stable

• Unstable

What type of clouds are not seen in this METAR?

• Cumulonimbus

• Cumulus

• Cirrus

• Altocumulus

Which of the following is not one of the factors required for the development of clouds?

• Condensation nuclei

• Moisture

• Cooling effect

• Lifting agent

Where can you expect a convective cloud base given the following METAR using only the temperature/dewpoint spread to calculate?

• 2,700ft AGL

• 2,100ft AGL

• 2,500ft AGL

• 3,000ft AGL

What is the difference between conditional insand potential instability?

• Conditional instability has an ELR situated between the DALR and the SALR.

• Potential instability has an ELR situated between the DALR and the SALR.

• Conditional instability has an ELR under both the DALR and the SALR.

• Potential instability has an ELR under both the DALR and the SALR.

What type of precipitation can you expect from a cloud developing in air where the ELR is steeper the DALR?

• Showering Rain

• Continuous Rain

• Heavy Rain

• Light Rain

Which type of cooling effect is associated to low level inversions ?

• Mechanical Turbulence

• Orographic Lift

• Convergence

• Frontal Lift

As a pilot, which type of cloud would you prefer to see in the sky if you want a smooth ride?

• Altostratus

• Cumulonimbus

• Nimbostratus

• Stratocumulus

Which type of front will create more violent weather in unstable air?

• Slow Moving Cold Front

• Slow Moving Warm Front

• Fast Moving Cold Front

• Slow Moving Warm Front

What type of air does the Environmental Lapse Rate shown here demonstrate ?

• Absolute Stability

• Absolute Instability

• Conditional Instability

• Potential Instability