Test 5 - Aviation Weather, Effects, & Sources

What kind of air would one expect over a barren area on a hot, humid day?

• Smooth air
• Dry air
• Thunderstorms, low-level wind shear
• Humid air

When will clouds or fog form?

• When the temperature is cold
• When there is high pressure
• When water vapor is present (condenses)
• When there is low pressure

In what stage are thunderstorms the strongest?

• Dissipating
• Mature
• Cumulus
• The storm is strong through all stages

The presence of ice pellets at the surface is evidence there .

• Are thunderstorms in the area
• Has been cold frontal passage
• Is a temperature inversion with freezing rain at higher altitude
• Is fog

What types of fog depend upon wind in order to exist?

• Radiation fog and ice fog
• Steam fog and ground fog
• Advection fog and upslope fog
• Steam fog and radiation

Wind shear can exist

• At all altitudes
• At low altitudes
• At high altitudes
• Wind shear does not exist in altitudes

A stable air mass is most likely to have which characteristic?

• Showery precipitation
• Poor surface visibility
• Turbulent air
• Acceptable visibility

What are characteristics of a moist, unstable air mass?

• Poor visibility and smooth air
• Haze and smoke
• Turbulence and showery precipitation
• Heavy rain and good visibility

What effect does humidity have on performance?

• It increases performance
• It decreases performance
• It has no effect on performance
• Performance on a drone is equalized

What factor would tend to increase the density altitude at a given airport referenced in the weather briefing?

• An increase in barometric pressure
• A decrease in relative humidity
• An increase in ambient temperature
• An increase in steam fog