NASBLA Navigation Rules & Right of Way 3

Question 1

What is required of a give-way vessel under the Navigation Rules?

Accepted Answer

Take early and substantial action to keep well clear

Answer

Rule 16 requires the give-way vessel to take early and substantial action to keep well clear, not just minor adjustments.

Question 2

What action may a stand-on vessel take if it becomes apparent that the give-way vessel is not taking appropriate action?

Accepted Answer

Take action to avoid collision by its own maneuver alone

Answer

Rule 17 allows the stand-on vessel to maneuver to avoid collision when it becomes apparent that the give-way vessel is not taking sufficient action.

Question 3

Two short blasts on a vessel's whistle in a meeting or crossing situation signal what intended maneuver?

Accepted Answer

I am altering my course to port

Answer

Under Rule 34, two short blasts indicate the vessel is altering course to port.

Question 4

Under Rule 2 (Responsibility), what principle allows a mariner to depart from the Navigation Rules?

Accepted Answer

To avoid immediate danger when following a rule would create a greater hazard

Answer

Rule 2(b) allows departure from the rules when necessary to avoid immediate danger, balancing the letter of the law against seamanship.

Question 5

What is the purpose of a danger signal under Rule 34(d)?

Accepted Answer

To indicate doubt or failure to understand the other vessel's intentions or actions

Answer

Five or more short blasts constitute the danger signal, used when a vessel is in doubt about another vessel's intentions or when a collision risk exists.

NASBLA - National Association of State Boating Law Administrators Certified Practice Test

NASBLA - National Association of State Boating Law Administrators Certified Practice Test

NASBLA Navigation Rules & Right of Way 3