Question 1

To operate a small UA at night under Part 107, the remote pilot must:

Accepted Answer

As of 2021, night operations are permitted by rule (without waiver) IF the pilot completes the updated training and the aircraft has compliant lights.

Question 2

Anti-collision lights used for night operations must be visible for at least:

Accepted Answer

14 CFR § 107.29(b) requires anti-collision lights to be visible for at least 3 statute miles.

Question 3

The flash rate of the required anti-collision lights must be:

Accepted Answer

While Part 107.29 generally requires 'anti-collision lights', standard aviation definitions imply a flash rate sufficient to attract attention (40-100/min is standard for manned, though the rule specifies visibility distance as the primary metric).

Question 4

Can a remote pilot turn off the anti-collision lights during flight?

Accepted Answer

14 CFR § 107.29(c) allows the remote pilot to reduce the intensity or turn off the lights if they determine that the lights impair their ability to see the aircraft or potential hazards.

Question 5

Night is defined as:

Accepted Answer

14 CFR § 1.1 defines night as the time between the end of evening civil twilight and the beginning of morning civil twilight.

Question 6

During night operations, what visual illusion might a pilot experience where a stationary light appears to move?

Accepted Answer

Autokinesis occurs when staring at a single stationary light in the dark for several seconds; it appears to move.

Question 7

A 'False Horizon' illusion at night can be caused by:

Accepted Answer

A false horizon occurs when the natural horizon is obscured, and the pilot aligns with a geometric pattern (like a slanted cloud deck or line of lights) instead.

Question 8

To maintain night vision adaptation, a remote pilot should:

Accepted Answer

Red light does not degrade rhodopsin (visual purple) in the rods as much as white light, preserving night vision.

Question 9

When scanning for traffic at night, you should:

Accepted Answer

Because of the central blind spot at night, looking 5 to 10 degrees off-center allows the peripheral rods to detect the light/object.

Question 10

Are you allowed to fly during 'Civil Twilight' without anti-collision lights?

Accepted Answer

14 CFR § 107.29 requires anti-collision lights for operations during BOTH civil twilight AND night.

Question 11

Civil twilight in the evening ends:

Accepted Answer

Evening civil twilight ends when the geometric center of the sun reaches 6 degrees below the horizon (typically 30-45 minutes after sunset depending on latitude).

Question 12

If a pilot completed their initial Part 107 test in 2018 (before the night rule change), can they fly at night today?

Accepted Answer

Pilots certified before the rule change must complete the updated recurrent training (which includes night modules) to exercise night privileges.

Question 13

Which illusion involves a pilot perceiving themselves as being higher than they actually are due to a lack of visual cues or up-sloping terrain?

Accepted Answer

A 'black hole approach' or featureless terrain creates the illusion of being higher, causing the pilot to fly lower than intended.

Question 14

Navigation lights (Red/Green) on a drone:

Accepted Answer

While not sufficient to meet the anti-collision requirement alone, nav lights (Red=Left, Green=Right) are critical for the pilot to determine the drone's heading at night.

Question 15

Before a night flight, the remote pilot should ensure the area is:

Accepted Answer

A daylight site survey is a best practice to identify hazards (wires, trees) that will be invisible at night.

Night Operations Practice Questions

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