1. 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

2. BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________.

2 to 4 seconds
4 to 6 seconds
6 to 8 seconds
8 to 10 seconds

3. INTERNATIONAL ONLY Yellow lights are NOT shown by __________.

towing vessels pushing ahead
air cushion vessels in a nondisplacement mode
purse seiners
U.S. submarines

4. BOTH INTERNATIONAL & INLAND A rigid replica of the International Code flag "A" may be shown by a vessel __________.

pulling a submarine cable
engaged in diving operations
engaged in underway replenishment
transferring explosives

5. BOTH INTERNATIONAL & INLAND A vessel which is fishing is required to show sidelights and a sternlight only when __________.

anchored
underway
dead in the water
underway and making way

6. BOTH INTERNATIONAL & INLAND A vessel conducting mineclearing operations will show __________.

three balls in a vertical line
two balls in a vertical line
one ball near the foremast and one ball at each fore yard
one diamond near the foremast head and one ball at each fore yard

7. BOTH INTERNATIONAL & INLAND You are preparing to cross a narrow channel. You see a vessel that can only be navigated safely within the channel. You should __________.

not cross the channel if you might impede the other vessel
initiate an exchange of passing signals
sound the danger signal
hold your course and speed

8. BOTH INTERNATIONAL & INLAND Continuous sounding of a fog whistle by a vessel is a signal __________.

that the vessel is anchored
to request the draw span of a bridge to be opened
of distress
that the vessel is broken down and drifting

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

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

10. 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 are required to __________.

slow to bare steerageway
back down
sound one short blast to indicate that you are holding course and speed
sound the danger signal