1. BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel sound four short blasts in succession. What does this signal indicate?

A pilot vessel
A vessel being towed
A vessel fishing
A sailboat

2. BOTH INTERNATIONAL & INLAND The Rules state that vessels may depart from the Rules when __________.

there are no other vessels around
operating in a narrow channel
the Master enters it in the ship's log
necessary to avoid immediate danger

3. BOTH INTERNATIONAL & INLAND For identification purposes at night, U.S. Navy submarines on the surface may display an intermittent flashing light of which color?

Amber (yellow)
White
Blue
Red

4. BOTH INTERNATIONAL & INLAND A "flashing light", by the definition given in the rules, is a light that __________.

is red in color
is visible over an arc of the horizon of 360°
flashes at regular intervals at a frequency of 120 flashes or more per minute
All of the above

5. BOTH INTERNATIONAL & INLAND A vessel engaged in mineclearance operations shows special identity lights __________.

instead of the masthead lights
which mean that other vessels should not approach within 1000 meters
that are 225° green lights
All of the above

6. BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.

only in case of an emergency or to engage in fishing within the zone
as nearly as practical at right angles to the general direction of traffic flow
at as small an angle as possible
only to anchor within the zone

7. BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light used to accompany whistle signals?

It is mandatory to use such a light.
The light shall have the same characteristics as a masthead light.
It is used to supplement short blasts of the whistle.
All of the above

8. INLAND ONLY Your vessel must stay within a narrow channel to be navigated safely. Another vessel is crossing your course from starboard to port. You do NOT think she will pass safely. You __________.

may sound the danger signal
must sound the danger signal
should sound one short blast to indicate that you are holding course and speed
are required to back down

9. BOTH INTERNATIONAL & INLAND The sternlight shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

22.5°
67.5°
112.5°
135.0°

10. BOTH INTERNATIONAL & INLAND A vessel showing a green light over a white light in a vertical line above the level of the sidelights is __________.

engaged in underwater construction
under sail and power
a pilot vessel
trawling