Sound Signals
Day Shapes/
Lights Configiration
Nav Situations
Inland
100

BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel making way in dense fog.
You observe what appears to be another vessel on
radar half a mile distant on your port bow and closing. You must .

sound one prolonged blast

100

BOTH INTERNATIONAL & INLAND What vessel is indicated by the day signal shown?(figure 22)

Ball-Diamond-Ball and Diamond

A tug with a tow exceeding 200 meters which limits her ability to maneuver

100

BOTH INTERNATIONAL & INLAND The lights shown
are exhibited by a vessel.(figure 49)

Red over Red

not under command

100

BOTH INTERNATIONAL & INLAND Vessel "A" is
overtaking vessel "B" as shown. Vessel "A" is the...(Diagram 17)

give-way vessel

100

INLAND ONLY At night, which lights are required on barges moored in a group formation more than two barges wide?

Two unobstructed all- round white lights

100

BOTH INTERNATIONAL & INLAND A vessel
displaying the day-shapes shown is...(Diagram 11)

aground

100

BOTH INTERNATIONAL & INLAND You are underway at night and you sight the lights shown. You know these lights indicate a...(figure 47)

Red over Green

sailing vessel

100

BOTH INTERNATIONAL & INLAND You are on
Vessel "A" engaged in fishing as shown in a narrow channel. Vessel "B" is a tanker proceeding in the channel. Vessel "B" sounds five short and rapid blasts. You should...(Diagram 37)

not impede the passage of vessel "B"

100

INLAND ONLY A vessel of less than 20 meters in length at anchor at night in a "special anchorage area designated by the Secretary".

What Lights

None

100

INLAND ONLY While underway and in sight of another vessel forward of your beam more than 0.5 mile away, you put your engines full speed astern. Do you need to sound 3 short blast?

No

100

BOTH INTERNATIONAL & INLAND A vessel which displays the day signal shown may be engaged in...(diagram 6)

Submarine cable laying, Pilotage duty, Fishing, or Mine clearance


Submarine cable laying

100

BOTH INTERNATIONAL & INLAND You are on a
vessel and see ahead the lights shown. They indicate a...(Diagram 59)

vessel crossing from your port

100

You are vessel 'A' meeting head-on with vessel 'B'. what is the appropriate action to avoid collision? (Diagram 25)

alter course to starboard and pass port-to-port

100

INLAND ONLY Two power-driven vessels are meeting in the situation as shown. One short blast from either vessel means...(Diagram 37)

"I intend to leave you on my port side."


200

INLAND ONLY Which statement is TRUE concerning the fog signal of a barge 35 meters in length, anchored in a "special anchorage area" approved by the Secretary?

The vessel is not required to sound a fog signal.

200

what is this vessel and what is the safe side?(Diagram 18)

Restricted in ability to maneuver

Diamonds

200

BOTH INTERNATIONAL & INLAND You see the
display of lights shown. This could indicate a...(Diagram 64)

Hint... length

40-meter tug with tow exceeding 200 meters

200

INTERNATIONAL ONLY You are on vessel "A" as shown. Vessel "B" sounds two short blasts. You should...(Diagram 32)

not answer the whistle signal from vessel "B"


200

INLAND ONLY A barge more than 50 meters long would be required to show how many white anchor lights when anchored in a Secretary approved "special anchorage area"?

2

300

INTERNATIONAL ONLY What equipment for fog signals is required for a vessel 13 meters in length?

Whistle only

300

INTERNATIONAL ONLY A partially submerged object towed by a vessel must show during the day one (200 meters or less)

diamond shape when the length of the tow is 200 meters or less

300

BOTH INTERNATIONAL & INLAND You are on a
vessel heading due south and see the lights shown one point on the port bow. This vessel could be heading.(Diagram 71)


North West

300

INLAND ONLY You are proceeding up a channel in Chesapeake Bay and are meeting an outbound vessel. There is no current. You MUST...

Hint... sound signals

propose or answer one- or two-blast whistle signals given by the other vessel if passing within 1/2 mile

300

INLAND ONLY A commercial vessel engaged in public safety activities may display a(n) .

Hint.. lights


alternately flashing red and yellow light