M6 - 1E

According to the presentation, how do hotter temperatures primarily affect aviation?

• They increase air density, improving lift.

• They make the air less dense, resulting in reduced lift and increased drag.

• They have no significant impact on air density.

• They only affect engine performance, not lift.

What is dynamic air pressure?

• The pressure exerted by still, non-moving air.

• The sum of static and total air pressure.

• The pressure created by the motion of air moving against an object.

• The normal atmospheric pressure that acts equally in all directions.

Humidity is the concentration of water vapor in the air and indicates the likelihood of what?

• High winds and turbulence.

• Clear skies and good visibility.

• Precipitation, dew, or fog.

• An increase in air pressure.

Which of the following cloud types are described as “fluffy and white, often seen in fair weather”?

• Stratus

• Nimbus

• Cirrus

• Cumulus

How is sleet defined?

• Balls or lumps of ice.

• Frozen precipitation that melts and reaches the ground as rain.

• Small ice pellets formed from raindrops that refreeze before reaching the surface.

• Rain that falls and freezes on cold surfaces.

Which of the following is considered a "red flag" for wind shear and microbursts?

• Clear skies with no clouds.

• A steady, unchanging wind speed.

• Nearby thunderstorms or blowing dust near the ground.

• The presence of high-altitude cirrus clouds.

What is the primary difference between aviation weather charts and forecasts?

• Charts are text-based, while forecasts are graphical.

• Charts show current or recent conditions, while forecasts predict future conditions.

• Charts are only used for VFR flights, while forecasts are for IFR flights.

• There is no difference; the terms are interchangeable.

A pilot looking for information on turbulence, storms, and jet streams would consult which type of chart?

• Surface Analysis Chart

• Weather Depiction Chart

• Significant Weather Chart

• Winds and Temperatures Aloft Chart

What is the main purpose of a SIGMET chart?

• To provide real-time observations every hour.

• To forecast weather for a 5-mile radius around an airport.

• To show information for moderate conditions like icing.

• To report severe hazards like volcanic ash and severe turbulence.

A METAR (Meteorological Aerodrome Report) provides current weather information and is typically issued how often?

• Every 15 minutes.

• Every 6 hours.

• Every hour.

• Once a day.