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51 Cards in this Set
- Front
- Back
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What are the primary responsibilities of the lookout?
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Maintain a sharp, 360º lookout. Report all lights, sounds, unusual objects, and conditions to the OOD. Report status of running lights when energized and de-energized.
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How long does dark adaptation take?
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Thirty minutes.
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What is the most important piece of gear a lookout has?
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Binoculars.
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What is the arc of visibility of the mast light?
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225º ahead, 22.5º port/stbd.
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What is the range light?
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An extra light that is required on the masts of all ships >50m. It is abaft and higher than the mast light.
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What is the color and arc of visibility for the starboard light?
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Green, 112.5º.
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What is the color and arc of visibility for the port light?
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Red, 112.5º.
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What is the minimum visible distance for mast lights on vessels >50m?
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Six miles.
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What is the arc of visibility for the stern light?
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135º. Submarines are exempt from this, under Rule 1, during ruddering.
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What is the minimum visible distance of side and stern lights?
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Three miles.
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What lights must be displayed while a vessel is at anchor?
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Vessels greater than 50m: all around white light at the bow and stern.
Vessels fewer than 50m: all around white light at bow. |
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What is the day shape for a vessel at anchor?
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Ball.
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What lights must be displayed while a vessel is aground?
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Two all around red lights.
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What is the day shape for a vessel aground?
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Ball, ball, ball.
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What lights must be displayed while sailboat is underway undersail and power?
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Two all around lights on mast head, red over green. Red and green side lights.
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What is the day shape for a sailboat that is underway undersail and power?
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Centered triangle on a line.
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What lights must be displayed while a vessel is being pushed ahead in inland waters?
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A special flashing, yellow light, flashing at 70 flashes per minute.
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What lights must a vessel display that is engaged in towing?
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Tow fewer than 7200m: two all around white mast lights.
Tow greater than 7200m: three all around white mast lights. |
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What is the day shape for a vessel engaged in towing?
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Diamond on a line.
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What lights must a vessel display that is engaged in fishing while underway?
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Two all around mast lights, red over white and running lights.
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What lights must a vessel engaged in fishing display while not underway?
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Two all around mast lights, red over white.
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What is the day shape displayed for a vessel engaged in fishing?
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Two triangles on a line.
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What lights must a vessel engaged in trawling display?
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Two all around mast lights, green over white.
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What is the day shape displayed for a vessel engaged in trawling?
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Two balls on a line.
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What lights must a vessel display while at restricted maneuvering?
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Three all around mast lights, red over white over red.
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What is the day shape for a vessel at restricted maneuvering?
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Ball, diamond, ball on a line.
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What lights must a vessel who is constrained by her draft display?
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Three all around mast lights, red.
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What is the day shape for a vessel constrained by her draft?
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Rectangle on a line.
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What lights must a pilot vessel display?
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Two all around mast lights, white over red.
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What lights must a vessel engaged in dredging operations display?
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Three all around lights on a vertical line, red over white over red.
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What lights indicate which side of a dredging vessel contains the obstruction?
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Two all around red lights or balls.
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What lights indicate which side of a dredging vessel is free to pass?
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Two all around green lights, or diamond.
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What lights must a vessel who is not under command display?
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Two all around mast lights, red over red.
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What day shape must a vessel who is not under command display?
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Two balls on a line.
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What lights must a minesweeper display?
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Green all around mast light and green on each yardarm.
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What is the day shape for a vessel engaged in minesweeping operations?
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Three balls in a triangle shape.
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What lights must a vessel display while engaged in diving operations?
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Three all around mast lights, red over white over red.
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What must a vessel who is engaged in diving operations display during the day?
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International ALPHA flag.
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What color are odd numbered buoys?
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Green.
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What color are even numbered buoys?
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Red.
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What are range markers used for?
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Determining position.
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What do you do if the OOD falls overboard?
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Immediately order ALL STOP of the engines and place rudder OVER FULL in the direction of the man overboard on 7MC. Then pass man overboard on 1MC.
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When does recovery of the man overboard begin?
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Once he is clear of the screws.
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Describe straight backing.
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Takes less time and distance from the man is kept to a minimum.
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Describe the Anderson Turn.
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Brings the ship back to a point it previously passed.
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Describe the Williamson Turn.
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Requires most room. Ship will return on a reciprocal course.
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Describe the Race-Track turn.
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Two 180º turns with short legs. Affords more time to line-up on the man overboard. Ship returns on its original heading.
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Which recovery method is best used at night, in adverse seas, or in poor visibility?
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Williamson Turn.
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Which recovery method is the fastest?
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Anderson Turn.
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Which recovery method is the slowest?
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Williamson Turn.
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What recovery method is best suited for use in a narrow channel?
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Straight backing.
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