1. BOTH INTERNATIONAL & INLAND Each prolonged blast on whistle signals used by a power-driven vessel in fog, whether making way or underway but not making way, is __________.

about one second
two to four seconds
four to six seconds
eight to ten seconds

2. BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.

sound two blasts and change course to the left
sound whistle signals only if you change course
sound only fog signals until the other vessel is sighted
not sound any whistle signals until the other vessel is sighted

3. 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

4. INLAND ONLY Which is a characteristic of a "special flashing light"?

It is required for all vessels being pushed ahead as part of a composite unit.
It must show through an arc of not less than 180°Nor more than 225°.
It must be of the same character and construction as the masthead light.
All of the above

5. INTERNATIONAL ONLY A partially submerged object towed by a vessel must show during the day one __________.

diamond shape when the length of the tow is 200 meters or less
diamond shape when the length of the tow exceeds 200 meters in length
black ball
black ball only when the length of the tow exceeds 200 meters in length

6. 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

7. BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning fog signals?

All fog signals for sailing vessels are to be given at intervals of not more than one minute.
A vessel not under command sounds the same fog signal as a vessel towed.
A pilot vessel underway and making way sounds the pilot identity signal and no other signal.
A vessel aground may sound a whistle signal.

8. BOTH INTERNATIONAL & INLAND Which vessel shall NOT impede the passage of a vessel which can safely navigate only within a narrow channel or fairway?

A vessel of less than 20 meters in length
A vessel sailing
A vessel fishing
All of the above

9. BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a vessel 20 meters in length?

Whistle and bell only
Whistle only
Bell only
Whistle, bell, and gong

10. BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in a small motorboat. You sight a tankship off your port bow coming up the channel. Which statement is TRUE?

You are the stand-on vessel because the tankship is to port.
You cannot impede the safe passage of the tankship.
The tankship is the stand-on vessel because it is to port of your vessel.
The tankship is the stand-on vessel because it is the larger of the two vessels.