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USCG > OIC - ATON > Flashcards

OIC - ATON Flashcards

1
Q

What buoyage system do we use in the United States?

A

International Association of Lighthouse Authorities (IALA) Region B.

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2
Q

What is IALA?

A

International Association of Lighthouse Authorities

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3
Q

What is a junction in ATON?

A

A point where two channels meet when proceeding seaward.

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4
Q

What is a bifurcation in ATON?

A

The point where a channel divides when proceeding from seaward, or the place where two tributaries meet.

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5
Q

What is a floating ATON called?

A

Buoy

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6
Q

What is a fixed ATON called?

A

Beacon

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7
Q

How are solid red ATON buoys and beacons numbered?

A

Solid red ATON buoys and beacons bear even numbers.

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8
Q

How are solid green ATON buoys and beacons numbered?

A

Solid green ATON buoys and beacons bear odd numbers.

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9
Q

What kind of buoys or beacons do not have numbers?

A

Preferred channel, safe water marks, isolated danger, special marks, and information/regulatory ATON use only letters.

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10
Q

What is a Can buoy?

A

Cylindrical buoys, often referred to as “can buoys,” are unlighted ATON.

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11
Q

What is a Nun buoy?

A

Conical buoys, often referred to as “nun buoys,” are unlighted ATON.

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12
Q

What is a Beacon in ATON?

A

Beacons have day boards attached to a structure.

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13
Q

What lights have lateral significance in ATON?

A

Though there are white and yellow lights, only ATON with green or red lights have lateral significance.

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14
Q

What does R’8” FL R 4s mean?

A

Buoy “8” displays one single flash of red every4 seconds.

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15
Q

What are the five sound signals for ATON?

A

Electronic Horns

Sirens

Whistles

Bells

Gongs

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16
Q

If lighted, what characteristic does a safe water mark display?

A

They will display a white light with the characteristic Morse Code “A”.

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17
Q

What is a black and red horizontally banded buoy called?

A

Isolated Danger Mark

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18
Q

What is an isolated danger mark used for?

A

They are used to mark isolated dangers (wrecks or obstructions) which have navigable water all around.

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19
Q

If lighted, what characteristic does an isolated danger mark display?

A

Isolated danger marks display a white light with a “group-flashing” characteristic; and are fitted with a visually distinctive top mark, consisting of two black spheres, one above the other.

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20
Q

What is a yellow buoy of beacon?

A

Yellow buoys and beacons are called “special marks”.

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21
Q

What does a special mark do?

A

They mark anchorages, dredging/spoil areas, fishnet areas, and other special areas or features.

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22
Q

If lighted, what characteristic does a special mark display?

A

When lighted, special marks will display a yellow light with a Fixed (“F”) or Flashing (“Fl”) characteristic. Special marks may also be used to mark the center of the traffic separation scheme.

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23
Q

What are white and orange buoys or beacons?

A

Information and regulatory buoys and beacons indicate various warnings or regulatory matters.

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24
Q

If lighted, what characteristic does informational or regulatory marks display?

A

They will only display a white light and may display any light rhythm except quick flashing.

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25
Q

What does it mean when a buoy is watching properly?

A

When a buoy is “watching properly”, it is marking its charted position “on station” and properly displaying all other distinguishing characteristics.

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26
Q

What are the four types of beacons?

A

Daybeacons

Lighted beacons (minor lights)

Major lights

Light towers

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27
Q

What is a daybeacon?

A

Daybeacons are unlighted fixed structures fitted with a dayboard for daytime identification.

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28
Q

What is a lighted beacon?

A

Just as daybeacons are sometimes substituted for unlighted buoys, lighted beacons are substituted for lighted buoys.

29
Q

What is a major light in ATON?

A

Major lights display a light of moderate to high candlepower. They may also have high intensity audible signaling devices, radio beacons and radar beacons (RACONs).

30
Q

What determines whether an ATON light is a major or minor light?

A

Determining whether a light is major, or minor, depends upon its candlepower and the luminous range of the light.

31
Q

What are ranges in ATON and what are their purpose?

A

Ranges are pairs of beacons located to define a line down the center of a channel or harbor entrance.

32
Q

When looking at a range and the upper mark is seen to the left of the lower mark, where are you?

A

The vessel is to the left of the center of the channel.

33
Q

When looking at a range and the upper mark is to the right of the lower mark, where are you?

A

The vessel is to the right of the center of the channel.

34
Q

How are ranges lighted?

A

Most are lit 24 hours per day and may display either red, green, or white lights or combinations of the same.

35
Q

What is the ICW and how much area does it cover?

A

Extending some 2,400 miles along the Atlantic and Gulf coasts of the U.S., the Intracoastal Waterway (ICW) is a largely sheltered waterway, suitable for year-round use.

36
Q

When you see an aid with a yellow square on it, how should you pass it?

A

The yellow square shows that the aid should be kept on the left side when traveling north to south/east to west.

37
Q

When you see an aid with a yellow triangle on it, how should you pass it?

A

The yellow triangle shows that the aid should be kept on the right side when traveling north to south/east to west.

38
Q

How are non-lateral aids marked in the ICW?

A

Non-lateral aids in the ICW, such as ranges and safe-water marks, are marked with a yellow horizontal band.

39
Q

What is USWMS?

A

Uniform State Waterway Marking System

40
Q

What does RACON stand for?

A

RACON is an acronym for Radar Beacon.

41
Q

How does RACON look on a RADAR?

A

These beacons transmit a Morse Code reply when triggered by a boat’s radar signal. This reply “paints” the boat’s radar screen in the shape of dashes and dots representing a specific Morse Code letter, always beginning with a dash.

42
Q

How many satellites are in the GPS system?

A

The Global Positioning System (GPS) is a system of 24 satellites operated by the Department of Defense (DoD).

43
Q

How many satellites are required for a GPS fix?

A

At least four.

44
Q

How accurate is GPS?

A

Once the receiver has computed the range of at least four satellites, it processes a position that is accurate to within 13 meters horizontally.

45
Q

How accurate is GPS?

A

10 meters, with a 99.7% probability.

46
Q

What is the light list and how many volumes are there?

A

The Light List is a seven-volume, annual publication providing information on ATON maintained or authorized by the U.S. Coast Guard located on coastal and inland waters.

47
Q

What is a LLNR in the Light List?

A

Light List Number

48
Q

What is the characteristic of a fixed light?

A

A light showing continuously and steadily.

49
Q

What is the characteristic of an occulting light?

A

A light in which the total duration of light in a period is longer than the total duration of darkness and the intervals of darkness (eclipses) are usually of equal duration.

50
Q

What is the characteristic of an occulting light?

A

A light in which all durations of light and darkness are equal.

51
Q

What is the characteristic of a flashing light?

A

A light in which the total duration of light in a period is shorter than the total duration of darkness and the appearances of light (flashes) are usually of equal duration

52
Q

What is the characteristic of a quick flashing light?

A

A light in which flashes are produced at a rate of 60 flashes per minute

53
Q

What is the purpose of ATON?

A

Safe efficient flow of commerce.

54
Q

What are the OIC’s responsibilities with ATON?

A

Observe the functioning ATON within the unit’s AOR. Report to OPCON any aids that are not working properly or are off station.

55
Q

What is the difference between a lateral and cardinal system?

A

Lateral: Buoys and beacons indicate the sides of the channel or route relative to a conventional direction of buoyage.

Cardinal: Uses a buoy to indicate the location of a danger relative to the buoy itself.

56
Q

What is a Morse ‘A’ Buoy?

A

Entrance marker, flashes white 1 short 1 long, marks the entrance to a channel or isolated danger, safe to pass on all side. [red and white in color]

57
Q

What are the two types of junction buoys?

A

Nun/ Can

58
Q

What is a danger buoy?

A

A black buoy with a red stripe, two black spheres atop the buoy, marked with a letter. Flashes two short every five seconds.

59
Q

Where does the ICW go and where does it run?

A

2,400 miles from Manasquan, NJ to Brownsville, TX. It runs southerly along the Atlantic and westerly on the Gulf Coast.

60
Q

Who assigns battery stickers on ATON?

A

District

61
Q

What buoy would flash 2 + 1?

A

A preferred channel buoy (junction buoy)

62
Q

What buoy would quick flash?

A

A turn

A front range (white)

63
Q

What is a mid-channel marker?

A

Junction buoy

64
Q

What are examples of damaged ATON?

A

Missing day board

Not showing proper characteristic

65
Q

What are examples of destroyed ATON?

A

Piling split or missing

66
Q

What is WAMS?

A

Waterways Analysis and Management

67
Q

How often is WAMS?

A

Conducted every 5 years.

68
Q

What does a mooring buoy look like?

A

White with a horizontal blue stripe.

USCG (23 decks)

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