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 is "underway" according to the Rules?
A vessel made fast to a single point mooring buoy A vessel engaged in towing, not making way A pilot vessel at anchor A vessel which has run aground
2. INTERNATIONAL ONLY In a narrow channel, an overtaking vessel which intends to pass on the other vessel's port side would sound __________.
one prolonged followed by two short blasts one short blast two short blasts two prolonged followed by two short blasts
3. INTERNATIONAL ONLY If you sighted three red lights in a vertical line on another vessel at night, it would be a vessel __________.
aground constrained by her draft dredging moored over a wreck
4. BOTH INTERNATIONAL & INLAND By day, when it is impracticable for a small vessel engaged in diving operations to display the shapes for a vessel engaged in underwater operations, she shall display __________.
three black balls in a vertical line two red balls in a vertical line a black cylinder a rigid replica of the International Code flag "A"
5. INLAND ONLY A power-driven vessel, when leaving a dock or berth, is required to sound __________.
four short blasts one long blast one prolonged blast No signal is required.
6. BOTH INTERNATIONAL & INLAND If it becomes necessary for a stand-on vessel to take action to avoid collision, she shall NOT, if possible, __________.
decrease speed increase speed turn to port for a vessel on her own port side turn to starboard for a vessel on her own port side
7. BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing, the vessel which has the other to starboard must keep out of the way if __________.
she is the faster vessel the situation involves risk of collision the vessels will pass within half a mile of each other whistle signals have been sounded
8. BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.
do not interfere with the keeping of a proper look-out are not the color of either sidelight have a lesser range than the prescribed lights All of the above
9. INTERNATIONAL ONLY You are approaching another vessel and will pass safely starboard to starboard without changing course. You should __________.
hold course and sound no whistle signal hold course and sound a two blast whistle signal change course to starboard and sound one blast hold course and sound one blast
10. BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in a small motorboat. You sight a tankship off your port bow coming up the channel. Which statement is TRUE?
You are the stand-on vessel because the tankship is to port. You cannot impede the safe passage of the tankship. The tankship is the stand-on vessel because it is to port of your vessel. The tankship is the stand-on vessel because it is the larger of the two vessels.