OBS Online Boating Navigation Rules & Regulations 3

Question 1

What does a red nun buoy mark in the US lateral buoyage system?

Accepted Answer

The right side of a channel when returning from sea

Answer

Red nun buoys mark the right (starboard) side of a channel when boaters are returning from sea — 'Red Right Returning.'

Question 2

Under the Navigation Rules, what does it mean for a vessel to be 'underway'?

Accepted Answer

The vessel is not at anchor, aground, or made fast to the shore

Answer

A vessel is 'underway' whenever it is not anchored, aground, or tied to shore — even if it is drifting or stopped in the water.

Question 3

What is the required light configuration for a vessel being pushed ahead (not a composite unit) at night?

Accepted Answer

Sidelights only at the forward end

Answer

A vessel being pushed ahead that is not part of a composite unit shall exhibit sidelights at the forward end.

Question 4

How far must a vessel stay away from a US Navy vessel displaying a large-scale American flag and a red/yellow striped security zone flag?

Accepted Answer

500 yards

Answer

Vessels must stay at least 500 yards from US Navy ships and other vessels displaying the security zone flag.

Question 5

Which dayshape must a vessel constrained by its draft display?

Accepted Answer

A cylinder

Answer

A vessel constrained by its draft displays a cylinder as a dayshape to warn other vessels that it cannot maneuver freely.

(OBS) Online Boating Safety Certification Practice Test