Alabama Boaters Navigation Rules 4

Question 1

Under the Inland Navigation Rules, what does five or more short blasts on a horn signify?

Accepted Answer

Danger or disagreement with another vessel's maneuver

Answer

Five or more short blasts is the danger signal, indicating doubt or disagreement with another vessel's intentions and that a collision may be imminent.

Question 2

A vessel engaged in towing operations exhibits which lights in addition to sidelights and sternlight?

Accepted Answer

Two masthead lights in a vertical line and a yellow towing light above the sternlight

Answer

A towing vessel shows two (or three if tow exceeds 200m) vertical masthead lights and a special yellow towing light above the sternlight.

Question 3

What does a vessel signal with three short blasts?

Accepted Answer

I am operating in reverse (astern propulsion)

Answer

Three short blasts means 'I am operating astern propulsion' — the vessel's engines are in reverse.

Question 4

What is the minimum safe speed rule designed to accomplish?

Accepted Answer

To ensure a vessel can take proper and effective action to avoid collision

Answer

Rule 6 requires every vessel to proceed at a safe speed so it can take effective action to avoid collision and stop within an appropriate distance.

Question 5

A vessel less than 20 meters in length or a sailing vessel is not required to sound fog signals in restricted visibility if:

Accepted Answer

They are exempt — all vessels must sound fog signals

Answer

There are no exemptions by size for fog signals in restricted visibility — all vessels must sound the appropriate signal for their status.

(Alabama Boaters) Alabama Boaters Certification Practice Test

(Alabama Boaters) Alabama Boaters Certification Practice Test

Alabama Boaters Navigation Rules 4