1. INTERNATIONAL ONLY A towing light __________.

flashes at regular intervals of 50-70 flashes per minute
is yellow in color
shows an unbroken light over an arc of the horizon of not less than 180°Nor more than 225°
All of the above

2. BOTH INTERNATIONAL & INLAND Five or more short blasts on a vessel's whistle indicates that she is __________.

in doubt that another vessel is taking sufficient action to avoid a collision
altering course to starboard
altering course to port
the stand-on vessel and will maintain course and speed

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. INLAND ONLY At night, a barge moored in a slip used primarily for mooring purposes shall __________.

show a flashing yellow light at each corner
show a white light at each corner
show a red light at the bow and stern
not be required to be lighted

5. BOTH INTERNATIONAL & INLAND Vessel "A" is on course 000°T. Vessel "B" is on a course such that she is involved in a head-on situation and is bearing 355°T, 2 miles away from vessel "A". To ensure a safe passing, vessel "A" should __________.

maintain course
alter course to port
alter course to ensure a starboard to starboard passing
maneuver to ensure a port to port passing

6. BOTH INTERNATIONAL & INLAND As defined in the Rules, the term "vessel" includes __________.

seaplanes
nondisplacement craft
barges
All of the above

7. 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

8. BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes __________.

sailing ships
nondisplacement craft
seaplanes
All of the above

9. BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 14 meters in length?

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

10. INLAND ONLY The special light for a vessel engaged in public safety activities must __________.

be on top of the mast or highest structure of the vessel
not interfere with the visibility of the navigation lights
be as far forward as possible
not be visible more than 22 1/2 degrees abaft the beam