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ESWS > NAVIGATION > Flashcards

NAVIGATION Flashcards

1
Q

What flag is flown during a fueling or ammo operation?

A

Bravo

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2
Q

What book is used to determine sunrise, sunset, moonrise & moonset?

What computer program?

A

Nautical almanac

Stella

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3
Q

What flag is flown during small boat recall?

A

Quebec

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4
Q

Where is the Greenwich meridian or prime meridian and what time zone is it in?

A

Greenwich, England.

Zulu

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5
Q

If a contact has constant bearing and the range is decreasing, what can happen?

A

Risk of collision

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6
Q

What does SOPA stand for?

A

Senior Officer Present Afloat

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7
Q

What record is kept on board for 1 year and a copy shipped to the Naval historical society?

A

Deck log

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8
Q

Definition of LOP?

A

Line of Position

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9
Q

What navigation weather equipment determines atmospheric pressure and where is it?

A

Barometer

Port bridge wing

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10
Q

What flags are flown if there is distress?

A

November & Charlie

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11
Q

What flags are used in port for divers?

A

Code Alpha

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12
Q

How many nautical miles in one degree of latitude?

A

60 nautical miles

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13
Q

What is the difference between restricted in our ability to maneuver and restricted maneuvering doctrine?

A

Ability to maneuver - due to the nature of her work; ex-LCU ops, flight quarter

Doctrine - keep the ships machinery operating outside of EOCC to keep the ship safe.

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14
Q

What other ways of measuring distance to an object do we have onboard?

A

Line of sight
Laser range finder
25mm gun mount range finder

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15
Q

What flag is flown for medical?

A

Mike

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16
Q

What is the book used with the stademeter to determine the height of another ship?

A

The underway replenishment guide

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17
Q

What flag is flown to prepare for colors?

A

Prep

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18
Q

What flag do you fly as you come along a ship during UNREP?

A

Romeo

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19
Q

Where is the main gyro located?

A

IC Gyro

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20
Q

How many search lights do we have and what are they used for?

A

4

Transmit Morse code messages

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21
Q

What flag is flown during personnel recall?

A

Papa

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22
Q

What does DR stand for?

A

Dead reckoning

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23
Q

What flag is flown when the CO is not onboard?

A

3rd Substitute

24
Q

What navigation equipment is used to determine the distance to another ship of a known height during UNREP?

A

Stadimeter

25
Q

What record is kept on the bridge underway that details the weather conditions at sea?

A

Weather log

26
Q

What navigation system is used at the chart table to plot LOP’s and fix the ships position?

A

VMS

Voyage Management System

27
Q

What does radar stand for?

ARPA?

A

Radio detecting and ranging

Automated radar plotting aid

28
Q

What is a Fathometer?

What are the three units of measurements it takes?

A

Measures depth of the water

Fathoms, feet, meters

29
Q

How many gyro repeaters are in the bridge area?

A

8

  • Port
  • STBD
  • Chart table
  • Centerline
  • Helm
  • CO’s chair
  • 07 FWD
  • OS table
30
Q

What flag is flown for hero condition?

31
Q

What flag is flown for personnel aloft?

32
Q

When do we haul down Romeo during refueling at sea?

A

Messenger in hand

33
Q

Define swing circle and drag circle

A

Swing - the amount of anchor chain put out and the length of the ship

Drag - the distance from hawspipe to pelorus plus the amount of anchor chain paid out

34
Q

What is our primary & secondary GPS?

A

WSN-7

PSN-13/Dagger

35
Q

What flag is flown if a vessel comes alongside?

36
Q

What equipment on the bridge determines magnetic headings?

A

DFGMC

Digital Flux Gate Magnetic Compass

“Don’t Fuck with GMC”

37
Q

What navigation equipment is used by the conn to see left or right bearing drift?

A

Bearing circle

38
Q

What equipment measures the ships pitch and roll?

A

Clinometer

39
Q

What navigation weather equipment measures wet and dry temperature and where is it?

A

Psychrometer

Pilot house

40
Q

What navigation equipment is used to determine gyro error?

A

Azimuth circle

41
Q

How many degrees are in a time zone?

42
Q

What navigation equipment is used to see bearings to visual navigation aids?

A

Bearing circle or telescopic alidade

43
Q

What flags are flown when the pilot comes onboard?

A

Code hotel

44
Q

What is an anemometer? Where are they located?

A

Wind bird

On the mast x2 and handheld in pilot house

45
Q

What 4 types of navigation are used on HFY?

A

GPS
Celestial
Radar
Visual

46
Q

What navigation equipment is used to calculate wind speed and direction?

A

Wind birds

Anemometer

47
Q

What equipment on the bridge determines true bearings?

A

Gyro compass

Gyro repeaters

48
Q

What flag is flown during flight quarters?

49
Q

What does not under command mean?

A

We do not have control of steering or engines due to “exceptional circumstances”

50
Q

What equipment on the bridge determines wind speed and direction?

A

Anemometer

51
Q

When you see a navigation aid on the horizon you should inform the navigation team and have them what?

A

Compare it to the chart

52
Q

What flags constitute pier SOPA?

A

Pier number
Starboard
Designation

53
Q

How many LOP’s constitute a fix?

54
Q

What group of flags is flown if the ship is senior to others on the same pier?

55
Q

What does ECDIS-N stand for?

A

Electronic chart display informations system-Navy

56
Q

Where is the infrared/blinker lights on the mast located?

A

At the end of port & STBD yard arms on mast

57
Q

What navigation equipment is used to measure bodies?

A

Marine Sextant

ESWS (11 decks)

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