Are you a TOP GUN in NavRules?You think you're ready for the NavRules test? Take the NavRules Challenge and find out!!
1. From your 0100 position, you change course to 258° per standard magnetic compass. Your engine speed is 10.0 knots. A short time later, your fathometer reads 51 feet (15.5 meters) under the keel. What is the water depth?
42.5 feet (12.9 meters) 51.0 feet (15.5 meters) 59.5 feet (18.0 meters) 60.4 feet (18.4 meters)
2. BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
whenever two vessels are on opposite courses whenever a vessel crosses ahead of the intended track of another vessel if the bearing of an approaching vessel does not appreciably change if one vessel approaches another so as to be overtaking
3. BOTH INTERNATIONAL & INLAND When a vessel signals her distress by means of a gun or other explosive signal, the firing should be at intervals of approximately __________.
10 minutes 1 minute 1 hour 3 minutes
4. BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to __________.
22.5° abaft the beam abeam 22.5°Forward of the beam 135° abaft the beam
5. BOTH INTERNATIONAL & INLAND Which dayshape would a vessel aground show during daylight?
One black ball Two black balls Three black balls Four black balls
6. BOTH INTERNATIONAL & INLAND A vessel may use any sound or light signals to attract the attention of another vessel as long as __________.
white lights are not used red and green lights are not used the vessel signals such intentions over the radiotelephone the signal cannot be mistaken for a signal authorized by the Rules
7. BOTH INTERNATIONAL & INLAND You are at anchor in fog on a 120-meter power-driven vessel. You hear the fog signal of a vessel approaching off your port bow. You may sound __________.
one prolonged, one short and one prolonged two short blasts one short, one prolonged, and one short blast one prolonged blast
8. BOTH INTERNATIONAL & INLAND A sailing vessel underway at night MAY show __________.
a green light over a red light a red light over a white light two white lights at the stern None of the above
9. BOTH INTERNATIONAL & INLAND Your tug is underway at night and NOT towing. What light(s) should your vessel show aft to other vessels coming up from astern?
One white light Two white lights One white light and one yellow light One white light and two yellow lights
10. BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a vessel __________.
not under command restricted in her ability to maneuver engaged in fishing All of the above