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 A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
Two masthead lights forward, a sternlight, and a towing light above the sternlight A masthead light forward, two masthead lights aft, a sternlight, and a towing light above the sternlight No masthead light forward, two masthead lights aft, a sternlight, and a towing light above the sternlight Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern
2. INLAND ONLY Under the Inland Navigation Rules, what is the meaning of the two short blasts signal used when meeting another vessel?
"I am turning to starboard." "I am turning to port." "I intend to leave you on my starboard side." "I intend to leave you on my port side."
3. BOTH INTERNATIONAL & INLAND While underway your vessel enters fog. You stop your engines and the vessel is dead in the water. Which fog signal should you sound?
One prolonged blast every two minutes Two prolonged blasts every two minutes Three short blasts every two minutes One prolonged and three short blasts every two minutes
4. BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for vessels __________.
engaged in fishing not under command engaged in towing under sail
5. BOTH INTERNATIONAL & INLAND Barges being towed at night must exhibit navigation lights __________.
at all times only if manned only if towed astern Need not be lighted
6. BOTH INTERNATIONAL & INLAND What signal would a vessel aground show during daylight?
One black ball Two black balls Three black balls Four black balls
7. INTERNATIONAL ONLY When vessels are in sight of one another, two short blasts from one of the vessels means __________.
"I am altering my course to starboard" "I am altering my course to port" "I intend to change course to starboard" "I intend to change course to port"
8. INTERNATIONAL ONLY Which signal is sounded ONLY by a vessel in sight of another and NOT in or near an area of restricted visibility?
Four short blasts on the whistle One prolonged blast on the whistle One short blast on the whistle One short, one prolonged, and one short blast on the whistle
9. BOTH INTERNATIONAL & INLAND In DIAGRAM 5, vessel "A", which is pushing ahead, and vessel "B" are crossing. Which is the stand-on vessel?
Vessel "A" is the stand-on vessel because she is to port of vessel "B". Vessel "A" is the stand-on vessel because she is pushing ahead. Vessel "B" is the stand-on vessel because she is to starboard of vessel "A". Neither vessel is the stand-on vessel in this situation.
10. BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at night must show which lights in a vertical line?
Three red Two red Two white Three white