Weather - FAA Part 107 Drone Exam Prep

Question 1

What is a 'squall line'?

Accepted Answer

A non-frontal, narrow band of active thunderstorms that often develop ahead of a cold front.

Answer

A line of low-level temperature inversions.

Answer

A continuous band of radiation fog.

Question 2

What causes variations in altimeter settings between weather reporting points?

Accepted Answer

Unequal heating of the Earth's surface.

Answer

Variation of terrain elevation.

Answer

Coriolis force.

Question 3

Ice pellets encountered at the surface are an indication that:

Accepted Answer

There is a temperature inversion with freezing rain at a higher altitude.

Answer

A thunderstorm is directly overhead.

Answer

The air mass is stable with no turbulence.

Question 4

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 5

An air mass that resists vertical movement is considered:

Accepted Answer

Stable.

Answer

Unstable.

Answer

Convective.

Question 6

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 7

One weather phenomenon which will always occur when flying across a front is a change in the

Accepted Answer

wind direction.

Answer

stability of the air mass.

Answer

type of precipitation.

Question 8

At what altitude does wind shear occur?

Accepted Answer

At any altitude.

Answer

Below 5,000 feet AGL.

Answer

Above 20,000 feet MSL.

Question 9

What does a 'broken' (BKN) cloud layer mean in a METAR report?

Accepted Answer

5/8 to 7/8 of the sky is covered by clouds, which constitutes a ceiling.

Answer

1/8 to 2/8 of the sky is covered by clouds.

Answer

3/8 to 4/8 of the sky is covered by clouds.

Question 10

Why is frost considered hazardous to drone operations?

Accepted Answer

It disrupts the smooth flow of air over the airfoil, decreasing lift and increasing drag.

Answer

It adds immense weight to the aircraft, dragging it down.

Answer

It shorts out the electronic speed controllers.

Exam questions Weather - FAA Part 107 Drone Exam Prep