1. BOTH INTERNATIONAL & INLAND What signal indicates doubt that sufficient action is being taken by another vessel to avoid collision?

Five short and rapid blasts of the whistle
Three long blasts of the whistle
Three short and rapid blasts of the whistle
One prolonged blast followed by three short blasts of the whistle

2. BOTH INTERNATIONAL & INLAND Which vessel is to be regarded as a vessel "restricted in her ability to maneuver"?

A vessel fishing with trawls
A vessel which has lost the use of her steering gear
A vessel with a draft of such depth that she cannot change her course
A vessel engaged in mineclearing

3. INLAND ONLY A flashing blue light is used to identify __________.

law enforcement vessels
U.S. submarines
air-cushion vessels in the nondisplacement mode
dredge pipelines on trestles

4. INLAND ONLY A light used to signal passing intentions must be an __________.

all-round yellow light only
all-round white light only
alternating red and yellow light
all-round white or yellow light

5. INLAND ONLY A vessel displaying a flashing blue light is __________.

transferring dangerous cargo
a law enforcement vessel
a work boat
engaged in a race

6. BOTH INTERNATIONAL & INLAND You are the watch officer on a power-driven vessel and notice a large sailing vessel approaching from astern. You should __________.

slow down
sound one short blast and change course to starboard
sound two short blasts and change course to port
hold your course and speed

7. INLAND ONLY Passing signals shall be sounded on inland waters by __________.

all vessels upon sighting another vessel rounding a bend in the channel
towing vessel when meeting another towing vessel on a clear day with a 0.6 mile CPA (Closest Point of Approach)
a power-driven vessel when crossing less than half a mile ahead of another power-driven vessel
All of the above

8. BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?

Two masthead lights forward, a sternlight, and a towing light above the sternlight
A masthead light forward, two masthead lights aft, a sternlight, and a towing light above the sternlight
No masthead light forward, two masthead lights aft, a sternlight, and a towing light above the sternlight
Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern

9. BOTH INTERNATIONAL & INLAND. In which situation would you consider a risk of collision to exist?

A vessel is one point on your starboard bow, range increasing, bearing changing slightly to the right.
A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right.
A vessel is two points abaft your port beam, range decreasing, bearing constant.
A vessel is on your starboard quarter, range increasing, bearing is constant.

10. BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 10 meters in length?

Any means of making an efficient sound signal
A bell only
A whistle only
A bell and a whistle