Are you a TOP GUN in NavRules?You think you're ready for the NavRules test? Take the NavRules Challenge and find out!!
1. BOTH INTERNATIONAL & INLAND In order for a stand-on vessel to take action in a situation, she must determine that the other vessel __________.
is restricted in her ability to maneuver has sounded the danger signal is not taking appropriate action has not changed course since risk of collision was determined
2. BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315°). That vessel may be heading __________.
northwest (315°) east (090°) southwest (225°) west (270°)
3. INTERNATIONAL ONLY Yellow lights are NOT shown by __________.
towing vessels pushing ahead air cushion vessels in a nondisplacement mode purse seiners U.S. submarines
4. INTERNATIONAL ONLY Under what circumstances would an overtaking vessel sound a whistle signal of two prolonged followed by one short blast?
When overtaking in restricted visibility When overtaking in a narrow channel When overtaking on open waters When no other vessels are in the immediate area
5. BOTH INTERNATIONAL & INLAND A vessel, which does not normally engage in towing operations, is towing a vessel in distress. She __________.
need not show the lights for a vessel engaged in towing, if it is impractical to do so may show the lights for a vessel not under command must show a yellow light above the sternlight must show the lights for a vessel towing
6. INLAND ONLY Your vessel is meeting another vessel head-on. To comply with the steering and sailing rules, you should __________.
sound the danger signal sound one prolonged and two short blasts exchange two short blasts exchange one short blast
7. BOTH INTERNATIONAL & INLAND Signals required for vessels aground include __________.
by night, the anchor lights for a vessel of her length, and three red lights in a vertical line a short, a prolonged, and a short blast by day, three black balls in a vertical line All of the above
8. INTERNATIONAL ONLY Which statement is true concerning a vessel "constrained by her draft"?
She must be a power-driven vessel. She is not under command. She may be a vessel being towed. She is hampered because of her work.
9. BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single green light. This is a __________.
vessel at anchor small motorboat underway vessel drifting sailing vessel
10. INLAND ONLY Which statement is TRUE concerning the light used for maneuvering signals?
It must be synchronized with the whistle. It may be white or yellow. It must be an all-round light. All of the above