Part 107 Weather and Loading Practice Questions (Free)

Question 1

A remote pilot plans to leave spare lithium batteries on the dashboard of a closed truck parked in the sun all afternoon. What concern does AC 107-2A raise? Options: A) Heat matters only while a battery is being charged B) Heat only shortens battery life and poses no fire risk C) Heating a lithium battery to extreme temperatures is a listed cause of battery fires

Accepted Answer

C) Heating a lithium battery to extreme temperatures is a listed cause of battery fires. AC 107-2A lists heating to extreme temperatures among the causes of lithium battery fires, along with short circuits, improper charging, crash damage, mishandling and defects. The cause is not limited to charging, so a stored battery baking in a hot cab is still at risk. Saying heat poses no fire risk contradicts the AC, which also advises following the manufacturer's battery handling recommendations.

Question 2

A METAR reports FEW008 SCT015 BKN030 OVC070. What is the ceiling? Options: A) 800 ft AGL B) 3,000 ft AGL C) 7,000 ft AGL

Accepted Answer

B) 3,000 ft AGL. The ceiling is the lowest broken or overcast layer, which is BKN030 at 3,000 ft AGL. The 800 ft layer is FEW and the 1,500 ft layer is scattered, and neither counts as a ceiling. The 7,000 ft overcast is above the lowest broken layer, so it is not the ceiling.

Question 3

A remote pilot loads a fixed-wing small UA beyond its maximum weight. Which performance change should they expect? Options: A) A shorter takeoff run B) A higher maximum altitude C) A higher stalling speed

Accepted Answer

C) A higher stalling speed. The Remote Pilot Study Guide lists a higher stalling speed among the performance losses of an overloaded aircraft, along with a longer takeoff run, reduced climb, lower maximum altitude and shorter range. A shorter takeoff run is the opposite of what added weight causes. Maximum altitude drops, not rises, with excess weight.

Question 4

What set of changes marks the passage of a front over a site? Options: A) A rise in visibility with no change in wind or temperature B) A steady increase in humidity with no change in wind C) A shift in wind direction along with changes in temperature and pressure

Accepted Answer

C) A shift in wind direction along with changes in temperature and pressure. Fronts separate air masses, so crossing one brings a change in wind direction, temperature and pressure. Better visibility alone, with no change in wind or temperature, does not mark a front. Rising humidity alone can occur without any front.

Question 5

Under what conditions does frost form on a drone left outside overnight? Options: A) The surface cools to a dewpoint that is below freezing B) Rain falls onto a surface that is colder than freezing C) Humid air touches a surface that stays above freezing

Accepted Answer

A) The surface cools to a dewpoint that is below freezing. Frost forms when a surface is at or below the dewpoint of the adjacent air and that dewpoint is below freezing, so water vapor deposits directly as ice. Rain freezing on contact forms glaze ice, not frost. If the surface stays above freezing, moisture condenses as dew rather than frost.

Question 6

Forecasts show a low-pressure area moving over a planned work site tomorrow. What weather should the remote pilot expect? Options: A) Rising air, more clouds and likely precipitation B) Sinking air with clearing skies and good visibility C) Calm winds and unlimited visibility all day

Accepted Answer

A) Rising air, more clouds and likely precipitation. Air converges and rises in a low, cooling to saturation, so lows bring clouds and precipitation. Sinking air and clearing skies are typical of a high. A passing low often brings stronger winds, not calm and unlimited visibility.

Question 7

A remote pilot measures a 6-knot wind at the launch point and plans to fly at 350 ft AGL. What should the pilot expect aloft? Options: A) Probably a stronger wind, since friction slows wind near the ground B) A weaker wind, since wind speed dies off with height above ground C) The same wind, since wind does not change in the first 400 ft

Accepted Answer

A) Probably a stronger wind, since friction slows wind near the ground. Friction with terrain, trees and buildings slows the wind near the surface, so wind speed usually increases with height above the ground. Assuming the wind weakens with height has the effect backwards. Wind often changes noticeably within the first few hundred feet.

Question 8

The METAR for an airport next to a planned job site reports 2 1/2SM HZ. What should the remote pilot conclude? Options: A) Visibility is likely below the 3 SM Part 107 minimum, so the flight should not go as planned B) Haze does not count toward the visibility limit, so the flight can proceed C) The 3 SM minimum applies only above 400 ft AGL, so the flight can proceed

Accepted Answer

A) Visibility is likely below the 3 SM Part 107 minimum, so the flight should not go as planned. Part 107 requires at least 3 SM flight visibility from the control station, and a nearby report of 2 1/2 SM shows conditions below that. Haze is a visibility restriction like any other and counts fully. The 3 SM minimum applies at all altitudes, not only above 400 ft.

Question 9

What can a remote pilot find on aviationweather.gov? Options: A) METARs, TAFs, PIREPs and other aviation weather products B) LAANC airspace authorizations for controlled airspace C) Drone registration certificates for Part 107 operators

Accepted Answer

A) METARs, TAFs, PIREPs and other aviation weather products. Aviationweather.gov is the Aviation Weather Center website, which publishes METARs, TAFs, pilot reports and other aviation weather products. LAANC authorizations come through FAA-approved service suppliers, not that site. Drone registration is done through FAADroneZone.

Question 10

In Figure 26, which frequency gives automated weather at Cooperstown (S32)? Options: A) 118.75 B) 122.9 C) 118.425

Accepted Answer

A) 118.75. The Cooperstown data block lists AWOS-3 118.75, the automated weather broadcast. 122.9 with the C is the CTAF used for traffic advisories, not weather. 118.425 is the ASOS at Jamestown Regional, a different airport.

Question 11

In Figure 69, which frequency gives the recorded weather and airport information (ATIS) at Corpus Christi International (CRP)? Options: A) 126.8 B) 119.4 C) 122.95

Accepted Answer

A) 126.8. The CRP data block lists ATIS 126.8, the recorded broadcast of weather and airport information. 119.4 follows CT and is the control tower. 122.95 at the end of the elevation line is the UNICOM.

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