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 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
2. BOTH INTERNATIONAL & INLAND Which vessel shall not impede the passage of a vessel which can only navigate inside a narrow channel?
A vessel of less than 20 meters in length
A vessel not under command
A vessel engaged in surveying
All of the above
3. BOTH INTERNATIONAL & INLAND You are approaching a vessel dredging during the day and see two balls in a vertical line on the port side of the dredge. These shapes mean that __________.
you should pass on the port side of the dredge
there is an obstruction on the port side of the dredge
the dredge is not under command
the dredge is moored
4. BOTH INTERNATIONAL & INLAND Risk of collision may exist __________.
if the compass bearing of an approaching vessel does NOT appreciably change
even when an appreciable bearing change is evident, particularly when approaching a vessel at close range
if you observe both sidelights of a vessel ahead for an extended period of time
All of the above
5. BOTH INTERNATIONAL & INLAND A vessel at anchor will show a __________.
double cone, apexes together
6. INLAND ONLY A light used to signal passing intentions must be an __________.
alternating red and yellow light
alternating white and yellow light
all-round white or yellow light
all-round white light only
7. BOTH INTERNATIONAL & INLAND Which statement about a 25-meter auxiliary sailboat is TRUE?
The sidelights and sternlight may be combined in one lantern.
When operating under sail, her fog signal would consist of one prolonged blast.
She may show a green light over a red light at the masthead.
She must show fixed sidelights.
8. BOTH INTERNATIONAL & INLAND Which is a distress signal?
Firing of green star shells
Sounding 5 short blasts on the whistle
Answering a one blast whistle signal with two blasts
A flaming barrel of oil on deck
9. BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.
the danger signal
two short blasts, alter to port, and pass astern
no signal and maneuver at will
one short blast and maintain course
10. BOTH INTERNATIONAL & INLAND You are in charge of a 120-meter power-driven vessel at anchor in fog, sounding the required anchor signals. You hear the fog signal of a vessel underway off your port bow. You may sound __________.
at least five short and rapid blasts
two short blasts
one short, one prolonged, and one short blast
three short blasts