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 A head-on situation at night is one in which you see __________.
one sidelight of a vessel ahead of you one sidelight and a masthead light of a vessel ahead of you one sidelight, a masthead light, and a range light of a vessel ahead of you both sidelights of a vessel dead ahead of you
2. INLAND ONLY A commercial vessel engaged in public safety activities may display a(n) __________.
flashing blue light alternately flashing red and yellow light flashing yellow light alternately flashing blue and red light
3. BOTH INTERNATIONAL & INLAND What does the word "breadth" mean?
Greatest breadth Molded breadth Breadth on the main deck Breadth at the load waterline
4. BOTH INTERNATIONAL & INLAND Which vessel is to sound a fog signal of one prolonged followed by two short blasts?
A vessel not under command A sailing vessel, underway A vessel restricted in her ability to maneuver when carrying out her work at anchor All of the above
5. BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?
As soon as you determine that risk of collision exists Only when you have reached extremis When it becomes apparent to you that the give-way vessel is not taking appropriate action When you determine that your present course will cross ahead of the other vessel
6. BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
A vessel engaged in fishing A vessel not under command A vessel engaged in dredging A power-driven vessel
7. INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.
river bank protection conducting submarine operations firefighting law enforcement
8. INLAND ONLY When two power-driven vessels are meeting on the Great Lakes, Western Rivers, or waters specified by the Secretary, where there is a current, which vessel shall sound the first passing signal?
The vessel going upstream stemming the current The vessel downbound with a following current The vessel that is towing regardless of the current Either vessel
9. BOTH INTERNATIONAL & INLAND A vessel being towed will show __________.
a forward masthead light sidelights and a sternlight a towing light All of the above
10. INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may __________.
sound one short blast sound four short blasts overtake her without sounding whistle signals attempt to contact her on the radiotelephone to arrange for the passage