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 Which vessel may sound the danger signal?
The stand-on vessel in a crossing situation The give-way vessel in a crossing situation A vessel at anchor All of the above
2. BOTH INTERNATIONAL & INLAND According to the Navigation Rules, you may depart from the Rules when __________.
no vessels are in sight visually no vessels are visible on radar you are in immediate danger out of sight of land
3. BOTH INTERNATIONAL & INLAND Dayshapes MUST be shown __________.
during daylight hours during daylight hours except in restricted visibility ONLY between 8 AM and 4 PM daily between sunset and sunrise
4. BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction shall sound __________.
one long blast one prolonged blast the danger signal two short blasts
5. BOTH INTERNATIONAL & INLAND You are underway, in fog, when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate a vessel __________.
not under command being towed aground All of the above
6. BOTH INTERNATIONAL & INLAND If you anchor your 25-meter vessel in a harbor, what light(s) must you show?
One all-round white light Two all-round white lights One all-round red light All the deck house lights
7. BOTH INTERNATIONAL & INLAND The lights required by the Rules must be shown __________.
from sunrise to sunset in restricted visibility at all times ONLY from sunset to sunrise whenever a look-out is posted
8. BOTH INTERNATIONAL & INLAND Fog signals, required under the Rules for vessels underway, shall be sounded __________.
only on the approach of another vessel only when vessels are in sight of each other at intervals of not more than one minute at intervals of not more than two minutes
9. INLAND ONLY Which signal must a power-driven vessel give, in addition to one prolonged blast, when backing out of a berth with another vessel in sight?
2 short blasts 1 blast 3 short blasts 4 blasts
10. BOTH INTERNATIONAL & INLAND A vessel being towed astern, where the length of the tow exceeds 200 meters, will exhibit __________.
two balls in a vertical line a diamond shape where it can best be seen a ball on each end of the tow no dayshape