Boating License Test Boating License Test Navigation Lights and Sound Signals

Question 1

What color is the port (left) side navigation light on a vessel?

Accepted Answer

Red

Answer

The port side navigation light is red, visible from dead ahead to 112.5 degrees on the left side.

Question 2

What color is the starboard (right) side navigation light on a vessel?

Accepted Answer

Green

Answer

The starboard side navigation light is green, visible from dead ahead to 112.5 degrees on the right side.

Question 3

A white stern light is visible over what arc?

Accepted Answer

135 degrees from the rear

Answer

The white stern light covers a 135-degree arc centered on the vessel's centerline at the rear.

Question 4

If you see only a green light from another vessel at night, what does this indicate?

Accepted Answer

You are seeing the vessel's starboard side — it is crossing your path from right to left

Answer

A green light alone means you are looking at the starboard side of the vessel, which is moving from your right to your left.

Question 5

What light configuration does an anchored vessel display at night?

Accepted Answer

A white all-around light visible 360 degrees

Answer

An anchored vessel under 50 meters displays a single white all-around light visible from all directions.

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