DWO Navigation Rules 2

Question 1

Under Rule 18, which vessel is NOT required to keep out of the way of a vessel restricted in her ability to maneuver?

Accepted Answer

A vessel not under command

Answer

A vessel not under command is exempted from the general duty to keep clear because she herself cannot maneuver.

Question 2

What is the minimum sound signal equipment required for a vessel less than 12 meters in length?

Accepted Answer

Any means of making an efficient sound signal

Answer

Rule 33 allows vessels under 12 meters to carry any efficient sound-signaling device in lieu of a whistle or bell.

Question 3

A vessel approaching a bend where other vessels may be obscured should sound which signal?

Accepted Answer

One prolonged blast

Answer

Rule 34(e) requires one prolonged blast when approaching a bend or area where other vessels may be obscured.

Question 4

In a crossing situation between two power-driven vessels, the vessel that has the other on her starboard side shall:

Accepted Answer

Keep out of the way and avoid crossing ahead of the other vessel

Answer

Rule 15 requires the give-way vessel (other vessel on her starboard) to keep out of the way and avoid crossing ahead.

Question 5

What color is the sternlight required by the Navigation Rules?

Accepted Answer

White

Answer

Rule 21 defines a sternlight as a white light showing aft over an arc of 135 degrees.

(DWO) Deck Watch Officer Practice Test