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ESWS Board > Navigation > Flashcards

Navigation Flashcards

1
Q

Who is in charge of the ship and is responsible to the commanding officer for the safe and proper operation of the ship or station?

A

Officer of the Deck (OOD)

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2
Q

Who orders the courses the helmsman steers?

A

Conning Officer

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3
Q

Who is an enlisted assistant to the OOD during underway watches and must see that all deck watch stations are manned with qualified personnel and all watch standers in previous watch sections are relieved?

A

Boatswains Mate of the Watch (BMOW)

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4
Q

Who is a qualified steersman who steers courses prescribed by the conning officer?

A

Helmsman/Lee Helmsman

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5
Q

Who is a person detailed to observe everything within an assigned sector and to report everything seen in or heard from the sector to the OOD and the combat information center (CIC) watch officer?

A

Lookouts

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6
Q

The normal peacetime lookout organization has how many people in each watch section?

A

3

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7
Q

Who is an enlisted assistant to the OOD while underway, assists the OOD in navigational matters and maintains the ships deck log?

A

Quartermaster of the Watch (QMOW)

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8
Q

What is the distance north or south of the equator, expressed in degrees and minutes?

A

Latitude

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9
Q

What is the distance east or west of the prime meridian, which runs through Greenwich, England?

A

Longitude

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10
Q

What is the direction of the current called?

A

Set

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11
Q

The velocity of the current is called speed of current and is sometimes referred to as what?

A

Drift

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12
Q

What is the basis or origin of longitude measurement, it is mean solar time measured w/ reference to the 0 degrees median of longitude located at Greenwhich, England?

A

GMT/Coordinated Universal Standard Time

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13
Q

An area in all parts of which the same time kept

A

Time Zone

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14
Q

The angle between the magnetic and geographic meridians at any place, expressed in degrees and minutes east or west to indicate the direction of magnetic north from true north

A

Variation

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15
Q

The angle between the magnetic meridian and and the axis of a compass card, expressed in degrees east and west to indicate direction in which the northern end of the compass card is offset from magnetic north

A

Deviation

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16
Q

A uniform system of maritime buoyage, organized by the International Association of Lighthouse Authorities, which is now implemented by most maritime nations

A

IALA (A/B) Bouyage System

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17
Q

A system of aids to navigation in which the shape, color, and number distinction are assigned in accordance w/ location relative to the nearest hazard to navigation

A

Cardinal System

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18
Q

Defined as the practice of observing celestial bodies (the Sun, Moon, Stars and Planets) to determine the ships position

A

Celestial Navigation

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19
Q

Defined as the determination of position by the use of radio waves

A

Radio Navigation

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20
Q

Defined as projecting an intended course and speed from a known point

A

Dead Reckoning (DR)

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21
Q

Defined as the movement of a vessel with continuous reference to landmarks, aids to navigation, depth sounding and radio navigation

A

Piloting

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22
Q

Two or more objects in line

A

Range

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23
Q

These aids are used to mark fairways, mid channels and offshore approach points

A

Channel Markings

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24
Q

The amount of distance run on the original course until the ship steadies on the new course

A

Transfer

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25
Q

What is a point on the centerline about which the ship turns when the rudder is put over; it also scribes the ships turning circle?

A

Pivot Point

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26
Q

The rate at which a ship increases and decreases speed

A

Acceleration/Deceleration

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27
Q

What is the path followed by the ships pivot point when making a 360 degree turn?

A

Turning Circle

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28
Q

What is a bearing relative to true north; compass bearing corrected for compass error?

A

True Bearing

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29
Q

This pertains to bearing relative to heading of a vessel, expressed as the angular difference between the heading and the direction, usually measured from 0 degrees at the heading clockwise through 360 degrees

A

Relative bearing

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30
Q

This term denotes that another vessel is not underway

A

Dead In the Water (DIW)

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31
Q

When two ships meet **, or nearly so each ship must change course to starboard and pass port to port

A

Head on

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32
Q

When two power driven vessels are ** and involve risk of collision the vessel having the other to starboard must keep out of the way and will avoid usually by turning to starboard and passing astern of the other ahead of the other vessel

A

Crossing

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33
Q

A vessel that is approaching another vessel from any direction more than 22.5 degrees abaft it’s beam

A

Overtaking

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34
Q

A vessel that keeps out of the way of the other vessel

A

Give way

35
Q

A vessel that stays on course and speed

A

Stand on

36
Q

An instance of one moving object or person striking violently against another

A

Collision

37
Q

The action of dashing against or striking upon

A

Allision

38
Q

Resting or lodged on the bottom

A

Aground

39
Q

Also known as BIG EYES, have a magnification of 20-power with an apparent field of view of approximately 70 degrees

A

Ships Binoculars

40
Q

An instrument for determining the distance to an object of known height by measuring the vertical angle subtended by the object

A

Standimeter

41
Q

It’s only function is to measure angles, either horizontally or vertically

A

Sextant

42
Q

A ring designed to fit snugly over a compass repeater; and provided with vanes for observing compass bearings

A

Bearing Circle

43
Q

A similar ring provided with means for observing azimuths of the sun is call a what?

A

Azimuth Circle

44
Q

What is used to obtain bearings of aids to navigation to determine the ships position?

A

Telescopic Alidade

45
Q

An instrument consisting of a protractor and one or more arms attached to a ** so that the movement of the arms is everywhere parallel

A

Parallel Motion Protractor (PMP)

46
Q

An instrument for transferring a line parallel to itself

A

Parallel Rulers

47
Q

A map or geospatial database intended primarily for navigation of aircraft or vessels

A

Charts

48
Q

A compass having one or more gyroscopes as the directive element and tending to indicate true north

A

Gyrocompass

49
Q

A compass depending for its directive force upon the attraction of the horizontal component of the earths magnetic field for a magnetized needle or sensing element free to turn in a horizontal direction

A

Magnetic Compass

50
Q

A radio system which measures distance and usually direction by a comparison of reference signals w/ the radio signals reflected or retransmitted from the target whose position it to be determined

A

Radio Detection and Ranging (RADAR)

51
Q

What is used for obtaining soundings in shallow depths?

A

Fathometer

52
Q

This is a system of highly accurate, passive, all weather, worldwide navigational system suitable for subsurface and surface navigation, as well as for use in aircraft

A

Satellite Navigation (SATNAV))

53
Q

This was developed to provide highly precise position and time information anywhere in the world, regardless of weather condition

A

Global Positioning System

54
Q

Now fully operational, GPS consists of how many satellites?

A

21 satellites plus 3 operational spares

55
Q

Used for measuring the distance to an object

A

Laser Range Finder

56
Q

This means a green light on the starboard side and a red light on the port side

A

Sidelights

57
Q

This means a white light placed as nearly as practicable at the stern

A

Sternlight

58
Q

This means a white light placed over the fore and aft centerline of the vessel

A

Masthead light

59
Q

A pair of red lights blinking off and on (pulsate), indicates that a ship has what?

A

Man overboard

60
Q

Two red lights, visible 2 miles all around the horizon, pulsate 50 to 60 times a minute by means of crank on the light panel in the pilot house

A

Not under command

61
Q

Refueling/ammunition handling

A

Bravo

62
Q

Senior Officer Present Afloat (SOPA)

A

Starboard

63
Q

Personnel Recall

A

Papa

64
Q

Boat Recall

A

Quebec

65
Q

Drivers are down

A

Alpha

66
Q

Man overboard

A

Oscar

67
Q

Anchoring

A

Uniform

68
Q

Absence of a flag officer or unit commander whose personal flag or command pennant is flying on this ship

A

1st Sub

69
Q

Absence of Chief of Staff or Chief of Staff Officer of the commander whose personal flag is flying on this ship

A

2nd sub

70
Q

Absence of captain (it’s use immediately shifts to the executive officer when the captain departs for a period of absence of 72 hours or more)

A

3rd sub

71
Q

Absence of civil or military official whose flag is flying on this ship

A

4th sub

72
Q

What is the only pennant that maybe flown above the national ensign?

A

Church or Jewish pennant

73
Q

An instrument for measuring atmospheric pressure

A

Barometer

74
Q

This is a type of hygrometer (an instrument for determining atmospheric humidity) consisting of dry bulb and wet bulb thermometers

A

Psychrometer

75
Q

It controls the switches for the port and starboard running lights, towing lights, masthead light, second masthead light, and stern light

A

Telltale panel

76
Q

What is the day shape for one black ball

A

Vessel at anchor

77
Q

What is the day shape for two black balls

A

Vessel not under command

78
Q

What is the day shape for three black balls

A

Vessel aground

79
Q

What is the day shape for one black ball, one diamond, one black ball

A

Restricted in ability to maneuver

80
Q

What is the day sheet for one rectangle

A

Constrained by draft

81
Q

What is the day shape for one diamond

A

Towing

82
Q

What is the day shape for two black balls

A

Vessel not under command

83
Q

Medical attention required

A

Whiskey

ESWS Board (11 decks)

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