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20 Cards in this Set
- Front
- Back
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A short blast is how many seconds?
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1 second
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A prolonged blast is how many seconds?
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4 - 6 seconds
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INTERNATIONAL: A vessel of 12m or more in length shall have what sound device(s)? 20m or more? 100m or more?
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12m: a whistle
20m+: a whistle and bell 100m+: a whistle, bell and gong |
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INLAND: A vessel of 12m or more in length shall have what sound device(s)? 100m or more?
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12m: a whistle and bell
100m+: a whistle, bell and gong |
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One short blast means? Two? Three? Type of light used for these signals (INTERNATIONAL AND INLAND)?
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One: "I am altering my course to starboard"
Two: "I am altering my course to port" Three: "I am operating astern propulsion" INT: all-round white light (5 miles min range) INLAND: all-round white OR yellow light (2miles min range) |
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Sound signal for a vessel in doubt
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Five short and rapid blasts on the whistle.
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Sound signal for a vessel nearing a bend
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One prolonged blast
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Sound signal for a power driven vessel leaving a dock or berth
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One prolonged blast
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Sound signal and time interval for a power driven vessel making way through the water in restricted visibility
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One prolonged blast of not more than 2 min.
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Sound signal and time interval for a power driven vessel underway but stopped and making no way through the water
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Two prolonged blasts of not more than 2 minutes with 2 seconds in between each prolonged blast.
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Sound signal and time interval for a vessel restricted in her ability to maneuver, not under command, constrained by draft, a sailing vessel, a vessel engaged in fishing, towing or pushing another vessel
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One prolonged blast followed by two short blasts of not more than 2 minutes in between.
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Sound signal and time interval for the last vessel of the tow, if manned.
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One prolonged followed by three short blasts, 2 minutes in between.
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1. Sound signal and time interval for a vessel at anchor.
2. In a vessel of 100m or more? 3. Additional sound signal? |
1. Ring the bell rapidly for about 5 seconds, 1 minute in between.
2. 100m+: sound the bell in the forepart and the gong for 5 seconds in the aft part. 3. One short blast, one prolonged blast and one short blast. |
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Sound signal and time interval for a pilot vessel engaged in pilotage duty
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four short blasts
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Sound signal and time interval for a vessel run aground
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Three strokes of bell immediately before and after an “Anchored” bell signal
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Maneuvering signals for INTERNATIONAL.
1 short blast, 2 short blasts... |
1 short blast: "I am altering my course to STARBOARD"
2 short blasts: "I am altering my course to PORT" The other vessel does NOT need to sound a reply. |
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Maneuvering signals for INLAND.
1 short blast, 2 short blasts... |
1 short blast: "I intend to leave you on my port side"
2 short blasts: "I intend to leave you on my starboard side" The other vessel must reply with the same signal. |
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Sound signals for a vessel OVERTAKING another INLAND.
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1 short blast: "I intend to overtake you on your starboard side"
2 short blasts: "I intend to overtake you on your port side" |
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Sound signals for a vessel OVERTAKING another INTERNATIONAL.
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2 prolonged blasts and one short blast: "I intend to overtake you on your starboard side"
2 prolonged blasts and two short blasts: "I intend to overtake you on your port side" |
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INTERNATIONAL sound signal for a vessel in agreement to be overtaken.
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One prolonged one short one prolonged and one short.
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