1. INLAND ONLY A power-driven vessel, when leaving a dock or berth, is required to sound __________.

two short blasts
one long blast
one prolonged blast
the danger signal

2. BOTH INTERNATIONAL & INLAND A tug is towing three manned barges in line in fog. The third vessel of the tow should sound __________.

no fog signal
one prolonged and two short blasts
one prolonged and three short blasts
one prolonged, one short and one prolonged blast

3. BOTH INTERNATIONAL & INLAND You are underway in a fog when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate all of the following EXCEPT a vessel __________.

being towed
not under command
fishing with trawls
towing astern

4. BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.

must be displayed when day signals are being used
must be displayed when moored to a pier
may be extinguished at night on open waters when no other vessels are in the area
may be displayed during daylight

5. BOTH INTERNATIONAL & INLAND At night, you are towing a partly submerged vessel, 20 meters in length and 4 meters in breadth. What lights must you display on the towed vessel?

A white light at the stern
Two white lights side by side at the stern
A white light at the forward end and a white light at the after end
Two red lights in a vertical line at the after end

6. INTERNATIONAL ONLY A vessel sounds two short blasts. This signal indicates the vessel __________.

intends to alter course to port
intends to pass starboard to starboard
is altering course to port
will alter course to port

7. INTERNATIONAL ONLY Which statement applies to a vessel "constrained by her draft"?

The term only applies to vessels in narrow channels.
She is severely restricted in her ability to change her course because of her draft in relation to the available depth and width of navigable water.
She is designated as a "vessel restricted in her ability to maneuver".
The vessel must be over 100 meters in length.

8. BOTH INTERNATIONAL & INLAND In DIAGRAM 5, vessel "A", which is pushing ahead, and vessel "B" are crossing. Which is the stand-on vessel?

Vessel "A" is the stand-on vessel because she is to port of vessel "B".
Vessel "A" is the stand-on vessel because she is pushing ahead.
Vessel "B" is the stand-on vessel because she is to starboard of vessel "A".
Neither vessel is the stand-on vessel in this situation.

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

one long blast
one prolonged blast
the danger signal
two short blasts

10. INTERNATIONAL ONLY While underway and in sight of another vessel you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?

You must sound three short blasts on the whistle.
You must sound one blast if backing to starboard.
You must sound whistle signals only if the vessels are meeting.
You need not sound any whistle signals.