Are you a TOP GUN in NavRules?You think you're ready for the NavRules test? Take the NavRules Challenge and find out!!
1. INLAND ONLY A vessel proceeding downstream in a narrow channel on the Western Rivers sights another vessel moving upstream. Which vessel has the right of way?
The vessel moving upstream against the current The vessel moving downstream with a following current The vessel located more towards the channel centerline The vessel sounding the first whistle signal
2. BOTH INTERNATIONAL & INLAND You are underway in fog and hear one short, one prolonged, and one short blast in succession. What is the meaning of this signal?
A vessel is in distress and needs assistance. A vessel is fishing, hauling nets. A vessel is at anchor, warning of her position. A vessel is towing.
3. BOTH INTERNATIONAL & INLAND You are in charge of a stand-on vessel in a crossing situation. The other vessel is 1.5 miles to port. You believe that risk of collision exists. You should __________.
take avoiding action immediately upon determining that risk of collision exists immediately sound the danger signal, and change course take avoiding action only after giving the give-way vessel time to take action, and determining that her action is not appropriate hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avoid collision
4. BOTH INTERNATIONAL & INLAND A self-propelled dredge not engaged in dredging but proceeding to a dredging location at night would __________.
not be required to show any lights be required to show the lights characteristic of a dredge be required to show the lights of a stationary dredge be required to show the lights of a power-driven vessel underway
5. BOTH INTERNATIONAL & INLAND Which vessel may exhibit identifying lights when not actually engaged in her occupation?
A trawler A fishing vessel A tug None of the above
6. BOTH INTERNATIONAL & INLAND What is the optional whistle signal which may be sounded by a vessel at anchor?
Two prolonged followed by one short blast One short followed by two prolonged blasts One short, one prolonged, followed by one short blast Four short blasts
7. BOTH INTERNATIONAL & INLAND A vessel is overtaking when she approaches another from more than how many degrees abaft the beam?
0.0° 11.25° 22.5° 45.0°
8. INLAND ONLY Vessels engaged in fishing may show the additional signals described in Annex II to the Rules when they are __________.
trolling fishing in a traffic separation zone in a narrow channel in close proximity to other vessels engaged in fishing
9. BOTH INTERNATIONAL & INLAND What dayshape must be shown on a partly submerged vessel which is being towed?
A diamond A cone One black ball Two black balls in a vertical line
10. BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in restricted visibility. Which signal is optional?
A bell signal A gong signal A whistle signal All of the above