1. BOTH INTERNATIONAL & INLAND While underway in a fog, you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could mean all of the following EXCEPT a vessel __________.

not under command
towing astern
fishing with trawls
being towed

2. 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

3. BOTH INTERNATIONAL & INLAND "safe speed" is defined as that speed where __________.

you can stop within your visibility range
the vessel is not subject to vibrations
you are travelling slower than surrounding vessels
you can take proper and effective action to avoid collision

4. BOTH INTERNATIONAL & INLAND Which vessel may use the danger signal?

The vessel to starboard when two power-driven vessels are crossing
A vessel engaged in fishing, crossing the course of a sailing vessel
Either of two power-driven vessels meeting head-on
All of the above

5. BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be hidden by an obstruction shall __________.

sound the danger signal
sound a prolonged blast
take all way off
post a look-out

6. INLAND ONLY Yellow lights are NOT used to identify __________.

U.S. submarines
vessels pushing ahead
law enforcement vessels
dredge pipelines on trestles

7. BOTH INTERNATIONAL & INLAND Sailing vessels are stand-on over power-driven vessels except __________.

in a crossing situation
in a meeting situation
when they are the overtaking vessel
on the inland waters of the U.S.

8. BOTH INTERNATIONAL & INLAND A vessel engaged in fishing underway sounds the same fog signal as a __________.

power-driven vessel stopped and making no way through the water
vessel being towed
vessel restricted in her ability to maneuver at anchor
sailing vessel at anchor

9. BOTH INTERNATIONAL & INLAND A partly submerged vessel or object being towed, which is not readily noticeable, shall show __________.

yellow lights at each end
two red lights in a vertical line
a black ball
a diamond shape

10. BOTH INTERNATIONAL & INLAND The term "restricted visibility", when used in the Rules, refers to __________.

situations when you can see vessels on radar that you cannot see visually
visibility of less than half a mile
any condition where visibility is restricted
visibility where you cannot see shore