Weather - FAA Part 107 Drone Exam Prep

Question 1

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 2

What effect does haze have on the ability to see traffic or terrain features during flight?

Accepted Answer

All traffic or terrain features appear to be farther away than their actual distance.

Answer

Haze causes the eyes to focus at infinity.

Answer

The eyes tend to overwork in haze and do not detect relative movement easily.

Question 3

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.

Question 4

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.

Question 5

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 6

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 7

The amount of water vapor which air can hold depends primarily on the:

Accepted Answer

Air temperature.

Answer

Dew point.

Answer

Air pressure.

Question 8

What is the most dangerous characteristic of a microburst?

Accepted Answer

A powerful downdraft that can reach up to 6,000 feet per minute, followed by severe wind shear.

Answer

Hail stones larger than 2 inches in diameter.

Answer

A sudden and dramatic drop in temperature.

Question 9

Which weather phenomenon is always associated with a thunderstorm?

Accepted Answer

Lightning.

Answer

Hail.

Answer

Heavy rain.

Question 10

Katabatic winds are characterized by:

Accepted Answer

Cold, dense air flowing downhill into a valley, typically at night.

Answer

Warm air rising up a mountain slope during the day.

Answer

High-altitude jet streams dipping into the lower atmosphere.

Exam questions Weather - FAA Part 107 Drone Exam Prep