U.S. Coast Guard Auxiliary Fort Myers Beach

Welcome to Southwest Florida!

Are you a TOP GUN in NavRules?
You think you're ready for the NavRules test?
Take the NavRules Challenge and find out!!


WALL OF FAME:
Top scores:
NameQuestionsCorrectScore
joe 10660%
ernie 201890%
Tim 201785%
Craig 201575%
Robert 201575%

1. INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel on her starboard side. Your first whistle signal should be __________.

one short blast
two short blasts
two prolonged blasts followed by one short blast
two prolonged blasts followed by two short blasts

2. BOTH INTERNATIONAL & INLAND Risk of collision may be deemed to exist __________.

if the compass bearing of an approaching vessel does NOT appreciably change
even when an appreciable bearing change is evident, particularly when approaching a vessel at close range
if you observe both sidelights of a vessel ahead for an extended period of time
All of the above

3. BOTH INTERNATIONAL & INLAND A 20-meter vessel is towing another vessel astern. The length of the tow from the stern of the towing vessel to the stern of the tow is 75 meters. How many white towing masthead lights shall the towing vessel show at night?

1
2
3
4

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

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

5. 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
not sound any whistle signals until the other vessel is sighted
sound only fog signals until the other vessel is sighted

6. BOTH INTERNATIONAL & INLAND At night, a barge being towed astern must display __________.

red and green sidelights only
a white sternlight only
sidelights and a sternlight
one all-round white light

7. BOTH INTERNATIONAL & INLAND A vessel "restricted in her ability to maneuver" is one which __________.

from the nature of her work is unable to maneuver as required by the rules
through some exceptional circumstance is unable to maneuver as required by the rules
due to adverse weather conditions is unable to maneuver as required by the rules
has lost steering and is unable to maneuver

8. BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the Rules?

A vessel engaged in fishing shall keep out of the way of a sailing vessel.
A vessel not under command shall keep out of the way of a vessel engaged in fishing.
A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver.
A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver.

9. BOTH INTERNATIONAL & INLAND What is NOT a distress signal?

A continuous sounding of the fog horn
Firing a gun every minute
Five or more short rapid blasts on the whistle
A square flag and ball flown from the mast

10. BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should __________.

not cross the channel if you might impede the other vessel
hold your course and speed if she is on your port bow
sound three short blasts, and take all way off your vessel
sound two prolonged blasts followed by one short blast