1. BOTH INTERNATIONAL & INLAND "safe speed" is defined as that speed where __________.

you can stop within your visibility range
the vessel is not subject to vibrations
you are travelling slower than surrounding vessels
you can take proper and effective action to avoid collision

2. BOTH INTERNATIONAL & INLAND A vessel restricted in her ability to maneuver shall __________.

turn off her sidelights when not making way
when operating in restricted visibility, sound a whistle signal of two prolonged and one short blast
show a dayshape of two diamonds in a vertical line
keep out of the way of a vessel engaged in fishing

3. INLAND ONLY A law enforcement vessel patrolling a marine regatta may show either a flashing blue light or __________.

two amber lights in a horizontal line
an alternately flashing red and yellow light
a high intensity flashing white light (strobe)
a fixed green light over a red flashing light

4. INTERNATIONAL ONLY A 20-meter power-driven vessel pushing ahead or towing alongside will display __________.

a single white light forward
two masthead lights in a vertical line
two towing lights in a vertical line
two all-round red lights where they can best be seen

5. INTERNATIONAL ONLY If at night a vessel displays three all-round red lights in a vertical line, during the day she may show __________.

two cones, base to base
three black balls in a vertical line
a cylinder
a cone, apex downward

6. INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.

river bank protection
conducting submarine operations
firefighting
law enforcement

7. BOTH INTERNATIONAL & INLAND A vessel may use any sound or light signals to attract the attention of another vessel as long as __________.

white lights are not used
red and green lights are not used
the vessel signals such intentions over the radiotelephone
the signal cannot be mistaken for a signal authorized by the Rules

8. BOTH INTERNATIONAL & INLAND A vessel 50 meters in length at anchor must sound which fog signal?

5-second ringing of a bell every minute
5-second ringing of a bell every two minutes
5-second sounding of a gong every minute
5-second sounding of both a bell and gong every two minutes

9. BOTH INTERNATIONAL & INLAND Barges being towed at night __________.

must be lighted at all times
must be lighted only if manned
must be lighted only if towed astern
need not be lighted

10. BOTH INTERNATIONAL & INLAND A tug is towing three barges astern in restricted visibility. The second vessel of the tow should sound __________.

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