Weather - FAA Part 107 Drone Exam Prep

Question 1

According to today's weather forecast, there will be a ceiling at 700 feet. Knowing this, up to what altitude are you allowed to fly your drone?

Accepted Answer

200 feet AGL.

Answer

500 feet AGL.

Answer

400 feet AGL.

Question 2

The conditions necessary for the formation of cumulonimbus clouds are a lifting action and

Accepted Answer

unstable, moist air.

Answer

either stable or unstable air.

Answer

unstable air containing an excess of condensation nuclei.

Question 3

In aviation meteorology, a 'ceiling' is defined as the height above the Earth's surface of the:

Accepted Answer

Lowest layer of clouds or obscuring phenomena that is reported as 'broken', 'overcast', or 'obscuration'.

Answer

Highest layer of clouds reported as scattered.

Answer

Lowest layer of clouds reported as scattered or broken.

Question 4

How does frost form on an aircraft?

Accepted Answer

When the temperature of the collecting surface is at or below the dew point of the adjacent air, and the dew point is below freezing.

Answer

When water drops freeze upon striking the aircraft's surface.

Answer

When flying through supercooled water droplets.

Question 5

What is a characteristic of stable air?

Accepted Answer

Stratiform clouds.

Answer

Unlimited visibility.

Answer

Cumulus clouds.

Question 6

In a TAF, a 'TEMPO' group indicates temporary fluctuations in weather. How long do these fluctuations usually last?

Accepted Answer

Usually less than an hour, and in total less than half the time period specified.

Answer

Exactly two hours.

Answer

More than half of the entire forecast period.

Question 7

What signals the beginning of the mature stage of a thunderstorm?

Accepted Answer

Precipitation falling to the surface.

Answer

The formation of an anvil cloud top.

Answer

The cessation of lightning.

Question 8

Every physical process of weather is accompanied by, or is the result of, a:

Accepted Answer

Heat exchange.

Answer

Movement of air.

Answer

Pressure differential.

Question 9

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 10

A remote PIC is planning a flight and notices the METAR reads 'FG'. The visibility is reported as 1/4 SM. Under Part 107, can the pilot legally fly?

Accepted Answer

No, Part 107 requires a minimum of 3 statute miles of flight visibility.

Answer

Yes, as long as the drone stays under 100 feet AGL.

Answer

Yes, if the pilot uses FPV goggles.

Exam questions Weather - FAA Part 107 Drone Exam Prep