AFS Quiz 3

What will make the atmosphere more stable?

• A higher temperature and lower humidity.

• A lower temperature and lower humidity.

• A higher temperature and higher humidity.

• A lower temperature and higher humidity.

Saturated air that cannot hold any more water vapor has a relative humidity of 0%.

• True

• False

At 30degreesC, air can hold 30g H2O/m3. For 1m3, air actually holds 12g H2O/m3. The relative humidity is:

• 100%

• 40%

• 0%

• 60%

Advection fog forms when...

• a layer of warm, moist air moves over a cold surface.

• moist, stable air is forced up sloping land features.

• cold, dry air moves over warm water.

• the temp is below freezing and water vapour forms into ice crystals.

Compared with a low humidity, a high humidity will ___ aircraft performance.

• Decrease

• Increase

Sea smoke forms when...

• a layer of warm, moist air moves over a cold surface.

• moist, stable air is forced up sloping land features.

• cold, dry air moves over warm water.

• the temp is below freezing and water vapor forms into ice crystals.

Ice fog forms when...

• a layer of warm, moist air moves over a cold surface.

• moist, stable air is forced up sloping land features.

• cold, dry air moves over warm water.

• the temp is below freezing and water vapor forms into ice crystals.

At an altitude of 15,000ft, you may find ___ clouds.

• Stratus

• Cirrocumulus

• Cirrus

• Altostratus

This what type of cloud:

• Altocumulus

• Altostratus

• Cirrocumulus

• Towering cumulus

This what type of cloud:

• Altocumulus

• Altostratus

• Cirrocumulus

• Towering cumulus