Weather - FAA Part 107 Drone Exam Prep

Question 1

When does Density Altitude equal Pressure Altitude?

Accepted Answer

When the temperature is standard (15 °C at sea level).

Answer

When flying at exactly mean sea level.

Answer

When the humidity is 0%.

Question 2

Under what condition will the air become fully saturated?

Accepted Answer

When the temperature drops to equal the dew point.

Answer

When the barometric pressure drops below 29.92 Hg.

Answer

When the temperature rises significantly above the dew point.

Question 3

The Coriolis force deflects winds to the ________ in the Northern Hemisphere.

Accepted Answer

Right.

Answer

Left.

Answer

South.

Question 4

Thunderstorms require three elements to form: high moisture, an unstable lapse rate (instability), and:

Accepted Answer

A lifting force (such as heating from below or a frontal boundary).

Answer

High barometric pressure.

Answer

A strong temperature inversion.

Question 5

What is 'Pressure Altitude'?

Accepted Answer

The altitude indicated when the barometric pressure scale is set to 29.92 inches of mercury (Hg).

Answer

The altitude read on an altimeter when set to the local barometric pressure.

Answer

The actual physical height of the aircraft above mean sea level.

Question 6

Low-level turbulence can occur and icing can become hazardous in which type of fog?

Accepted Answer

Steam fog.

Answer

Upslope fog.

Answer

Rain-induced fog.

Question 7

What conditions are necessary for the formation of thunderstorms?

Accepted Answer

High humidity, lifting force, and unstable conditions.

Answer

Lifting force, moist air, and extensive cloud cover.

Answer

High humidity, high temperature, and cumulus clouds.

Question 8

In the METAR 'SPECI KMDW 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980', what does 'SPECI' indicate?

Accepted Answer

A special unscheduled observation indicating a significant change in weather.

Answer

A specified terminal forecast.

Answer

A special restricted airspace notice.

Question 9

While operating a drone in a desert environment during the afternoon, a remote pilot notices small, swirling columns of dust. These are known as:

Accepted Answer

Dust devils, which indicate unstable air and localized turbulence.

Answer

Microbursts.

Answer

Squall lines.

Question 10

What is relative humidity?

Accepted Answer

The ratio of the amount of water vapor actually in the air to the maximum amount that the air could hold at that temperature.

Answer

The temperature at which air becomes saturated.

Answer

The amount of moisture in the air compared to standard sea level pressure.

Exam questions Weather - FAA Part 107 Drone Exam Prep