Test de práctica Part 107

Under the standard Part 107 limits, a small drone may not exceed a groundspeed of _____ knots (100 miles per hour) or fly higher than _____ feet above ground level, unless it stays within a 400-foot radius of a structure.

Opciones para el hueco 1: 67, 87, 100, 120

Opciones para el hueco 2: 200, 300, 400, 500

Respuesta: 87, 400

Section 107.51 caps groundspeed at 87 knots, which is the same as 100 miles per hour, so mixing up the units is a classic trap. It also caps altitude at 400 feet above ground level, except when the drone is within a 400-foot radius of a structure and no higher than 400 feet above that structure's uppermost limit.

• A. The helicopter must yield because the drone is smaller
• B. Whoever is at the lower altitude has the right of way
• C. The drone must yield the right of way and must not pass over, under or ahead of the helicopter unless well clear
• D. Right of way goes to whichever aircraft was in the area first

Respuesta: C. The drone must yield the right of way and must not pass over, under or ahead of the helicopter unless well clear

Section 107.37 says a small unmanned aircraft must yield the right of way to all other aircraft, and that yielding means giving way and not passing over, under or ahead of the other aircraft unless well clear. Size, altitude and who arrived first do not change this. In practice, if a crewed aircraft appears, land or move away.

• A. Class D airspace
• B. The surface area of Class E airspace designated for an airport
• C. Class C airspace
• D. Class G airspace

Respuesta: D. Class G airspace

Section 107.41 requires prior ATC authorization to fly in Class B, Class C or Class D airspace, or within the lateral boundaries of the surface area of Class E airspace designated for an airport. Class G is uncontrolled airspace, so no ATC authorization is needed there. You still have to follow every other rule, and temporary flight restrictions can apply anywhere.

• A. Temperature and dewpoint within about 4 degrees Fahrenheit of each other
• B. Temperature at least 30 degrees above the dewpoint
• C. Strong, gusty winds with a dry air mass
• D. A rising barometer with clear, dry skies

Respuesta: A. Temperature and dewpoint within about 4 degrees Fahrenheit of each other

When the temperature and dewpoint are close, the air is nearly saturated, so a small drop in temperature can produce fog or low cloud. That often happens on clear, calm nights as the ground cools. A wide spread means dry air, and a dry air mass with strong wind mixes the air instead of letting fog form.

• A. Nothing, because no one was injured
• B. A report to the FAA no later than 10 calendar days after the flight
• C. A report to the FAA within 24 hours
• D. A report only if the drone itself was damaged

Respuesta: B. A report to the FAA no later than 10 calendar days after the flight

Section 107.9 requires a report to the FAA within 10 calendar days of an operation involving serious injury, loss of consciousness, or damage to property other than the drone, unless the repair cost or fair market value is $500 or less. Here the car repair is above $500, so the report is required even though nobody was hurt.

• A. The drone becomes more efficient because it is heavier
• B. Flight time gets longer
• C. No effect, because the flight controller always compensates
• D. Stability and control get worse, and the motors work harder

Respuesta: D. Stability and control get worse, and the motors work harder

A center of gravity outside the allowed range makes a drone harder to control and less stable, and the motors have to work harder to hold attitude. Extra weight also generally shortens flight time and reduces climb performance. A flight controller can only compensate within its design limits, which is why loading limits exist.

Flight visibility must be at least _____ statute miles, and the drone must stay at least _____ feet below clouds and 2,000 feet horizontally from them.

Opciones para el hueco 1: 1, 3, 5, 10

Opciones para el hueco 2: 200, 500, 1,000, 2,000

Respuesta: 3, 500

Section 107.51 sets minimum flight visibility at 3 statute miles, measured from the control station, and a cloud distance of 500 feet below and 2,000 feet horizontally. The 2,000 appears only in the horizontal figure, which is where candidates mix the numbers up.

Marca todas las que correspondan.

• A. Class B
• B. Class G
• C. Class E
• D. Class D

Respuesta: A. Class B, C. Class E, D. Class D

Classes A, B, C, D and E are controlled airspace in the United States. Class G is uncontrolled. Under Part 107, you need ATC authorization in Class B, C and D and in the surface area of Class E designated for an airport, but not in Class G.

• A. A scattered layer at 25 feet above ground level
• B. An overcast ceiling at 25,000 feet
• C. A broken cloud layer at 2,500 feet above ground level
• D. A broken layer at 250 feet above sea level

Respuesta: C. A broken cloud layer at 2,500 feet above ground level

In a METAR, BKN means broken, which is 5 to 7 eighths of the sky covered, and the three digits are the height in hundreds of feet above ground level, so 025 is 2,500 feet. Because the lowest broken or overcast layer is the ceiling, this report has a ceiling of 2,500 feet. The rest of the line says the time is 1753 UTC, the wind is from 270 degrees at 12 knots gusting to 20, visibility is 10 statute miles and the altimeter setting is 30.01.

• A. Anti-authority
• B. Impulsivity
• C. Invulnerability
• D. Macho

Respuesta: A. Anti-authority

Anti-authority is the attitude of resisting rules and instruction, and its antidote is to follow the rules, since they are usually right. Impulsivity is acting without thinking (not so fast, think first), invulnerability is believing it cannot happen to you (it could happen to me), and macho is trying to prove yourself (taking chances is foolish). The fifth, resignation, is feeling that nothing you do matters.

Marca todas las que correspondan.

• A. Anti-collision lighting visible for at least 3 statute miles
• B. A remote pilot who completed the updated knowledge test or training taken after April 6, 2021
• C. A visual observer on the ground
• D. A transponder on the drone
• E. ATC permission for every night flight in every airspace

Respuesta: A. Anti-collision lighting visible for at least 3 statute miles, B. A remote pilot who completed the updated knowledge test or training taken after April 6, 2021

Section 107.29 requires anti-collision lighting that is visible for at least 3 statute miles with a flash rate sufficient to avoid a collision, and a remote pilot who completed the initial knowledge test or training after April 6, 2021. A visual observer is not required for night flights, and a transponder is not required. ATC authorization depends on the airspace, not on the time of day.

To act as remote pilot in command, a person must have passed the initial knowledge test or completed recurrent training within the previous _____ calendar months.

Opciones para el hueco 1: 12, 24, 36, 48

Respuesta: 24

Section 107.65 sets aeronautical knowledge recency at 24 calendar months. The FAA offers the recurrent training as an online course and lists it at no cost. Letting it lapse means you cannot exercise the privileges of the certificate until you complete it.

• A. Whether the aircraft is airworthy
• B. Their own fitness to fly
• C. Whether the weather meets the minimums
• D. Which class of airspace they are in

Respuesta: B. Their own fitness to fly

IMSAFE is a self-check for illness, medication, stress, alcohol, fatigue and emotion. It helps a pilot decide whether they are fit to fly, which matters because section 107.17 prohibits operating with a physical or mental condition that could interfere with safe operation. Aircraft condition, weather and airspace each have their own checks.

• A. The sectional chart legend
• B. A NOTAM
• C. The drone's user manual
• D. The aircraft registration record

Respuesta: B. A NOTAM

Temporary flight restrictions are published through NOTAMs, and they can appear on short notice, so check them before every flight. A printed chart is only updated on a fixed cycle, and the user manual and registration record do not contain airspace restrictions at all.

Marca todas las que correspondan.

• A. High field elevation
• B. High air temperature
• C. Low air temperature
• D. High humidity
• E. High barometric pressure

Respuesta: A. High field elevation, B. High air temperature, D. High humidity

Density altitude is the altitude the aircraft behaves as if it were at, and it rises with high elevation, high temperature and high humidity, which all make the air less dense. Thinner air means less lift from the propellers, so the drone has to work harder and climbs and carries less. Low temperature and high pressure make air denser and lower the density altitude.