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

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

2. BOTH INTERNATIONAL & INLAND A vessel not under command shall display __________.

two red lights at night and two black balls during daylight
two red lights at night and three black balls during daylight
three red lights at night and two black balls during daylight
three red lights at night and three black balls during daylight

3. INLAND ONLY If your tug is pushing a barge ahead at night and it is not a composite unit, which light(s) should show aft on your vessel?

A white sternlight
Two red lights
Two towing lights
A towing light over the sternlight

4. BOTH INTERNATIONAL & INLAND Your vessel is underway in reduced visibility. You hear the fog signal of another vessel about 30° on your starboard bow. If danger of collision exists, you must __________.

alter course to starboard to pass around the other vessel's stern
slow your engines and let the other vessel pass ahead of you
reduce your speed to bare steerageway
alter course to port and pass the other vessel on its port side

5. BOTH INTERNATIONAL & INLAND A 20-meter sailing vessel underway must exhibit a __________.

sternlight
combined lantern
red light over a green light at the masthead
All of the above

6. BOTH INTERNATIONAL & INLAND A pilot vessel may continue to sound an identity signal in fog if she is __________.

aground
at anchor
not under command
no longer on pilotage duty

7. BOTH INTERNATIONAL & INLAND When action to avoid a close quarters situation is taken, a course change alone may be the most effective action provided that __________.

it is done in a succession of small course changes
it is NOT done too early
it is a large course change
the course change is to starboard

8. BOTH INTERNATIONAL & INLAND When is a stand-on vessel FIRST allowed by the Rules to take action in order to avoid collision?

When the two vessels are less than half a mile from each other.
When the give-way vessel is not taking appropriate action to avoid collision.
When collision is imminent.
The stand-on vessel is never allowed to take action.

9. INLAND ONLY Which statement is TRUE concerning a passing agreement made by radiotelephone?

Such an agreement is prohibited by the Rules.
A vessel which has made such an agreement must also sound whistle signals.
Whistle signals must still be exchanged when passing within half a mile of each other.
If agreement is reached by radiotelephone, whistle signals are optional.

10. BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.

one short blast and maintain course
two short blasts, alter to port, and pass astern
no signal and maneuver at will
the danger signal