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Surface Warfare Specialist > Navigation > Flashcards

Navigation Flashcards

1
Q

What does GMT stand for?

A

Greenwhich Mean Time

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2
Q

What does DR stand for?

A

Dead Reckoning

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3
Q

What does DIW stand for?

A

Dead In Water

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4
Q

What is true bearing?

A

Any bearing in relation to true north given from 0 to 359 degrees

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5
Q

What is relative bearing?

A

Any bearing in relation to the ship given from 0 to 359 degrees

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6
Q

Where are the navigiaton lights operated from?

A

The Telltale Panel on the Bridge behind the helm.

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7
Q

What are the navigation lights and their color?

A
  1. Port Running Light- Red
  2. STBD Running Light- Gren
  3. FWD Masthead Light- White
  4. AFT Masthead Light- White
  5. Stern Light- White
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8
Q

Name some things used during a man overboard

A
  • Oscar Flag
  • Search Light
  • Life Ring
  • Smoke Float
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9
Q

What are the Pelorous Stands?

A

Stands used to house:

  • Gyro repeaters for true bearing
  • Fixed compass card for relative bearing
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10
Q

What is a Telescopic Alidade?

A

A tool that QM’s use in conjunction with the pelorus to obtain bearing from visual navigation aids during transits through restricted waters

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11
Q

What is the job of the QMOQ?

A
  • Maintain navigation plot
  • Be he eyes, ear, and voice of the Navigator when he is not present
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12
Q

What is the job of the Conning Officer?

A

To verbally drive the ship by giving rudder orders to the helmsman and speed orders to the lee helmsman

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13
Q

What day shapes are flown for restricted maneuvering?

A

Ball-Diamond-Ball

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14
Q

What day shapes are flown for vessel aground?

A

Ball-Ball-Ball

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15
Q

What day shapes are flown for vessel not in command?

A

Ball-Ball

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16
Q

What day shapes are flown for vessel at anchor?

A

Ball

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17
Q

What day shape is flown for vessel constrained by draft?

A

Cylinder

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18
Q

What lihgts are operated on the mast during a man overboard?

A

Red on Red Flashing

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19
Q

What lights are operated on the mast during restricted maneuvering?

A

Red over White over Red

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20
Q

What light is operated on the mast during vessel at anchor?

A

Red

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21
Q

What lights are operated on the mast during vessel not under command?

A

Red over Red

22
Q

What lights are operated on the mast during vessel aground?

A

Red over Red over Red

23
Q

What are the flags flown during UNREP?

A
  1. Golf
  2. Romeo
  3. Bravo
  4. Papa
24
Q

What is a Marine Sextant?

A

A tool used by QM’s to obtain lines of position from celestial bodies

25
Q

What is a Parallel Motion Protractor(PMP)?

A

A tools used by the QM’s to quily plot the L.O.P. during navigation details

26
Q

How is the radius of the drag circle calculated for a planned anchorage?

A

(scope of the chain let out) + (distance from the hawespipe to the center pelorus on the bridge) = Radius of Drag Circle

27
Q

How is the radius of the swing circle calculated for a planned anchorage?

A

(scope of the chain let out) + (the length of the ship)

28
Q

What shape is an electronic fix?

A

Triangle

29
Q

What shape is a visual fix?

A

Circle

30
Q

What is an emergency breakaway?

A

Ship seperates itself from alongside another ship during UNREP using max rudder and max propulsion

31
Q

What type of breakway does our ship do after an unrep?

A

Accelerated standard breakaway

32
Q

Why doesn’t our ship execute emergency breakaways?

A

We would collide to the other ship due to our pivot point located at the 100 frame

33
Q

What is “Messenger in Hand”?

A

A term passed to lower the romeo flag, signifying that we are officially alongside the other ship.

34
Q

What is another term for the Ensign that is flown from the main truck while underway?

A

The Steamer

35
Q

What three times are the commissioning pennants aren’t flown?

A
  • Precom
  • Decom
  • When the admiral flag is flying
36
Q

Which lines run north and south?

A

Longitude

37
Q

What is the auxiliary conning station used for?

A

Alongside Operations, during unreps and mooring operation

38
Q

What are some tools usd by the QMOW?

A
  • CHart
  • Pencil
  • PMP
  • Compass
  • Erasure
  • Signal Flags
  • Marine Sextant
  • Day Shapes
  • Telescopic Alidade
39
Q

What does GPS stand for?

A

Global Positioning System

40
Q

What is the speed of wind for it to be considered a hurricane?

A

64+ Knots

41
Q

What is a fathometer?

A

Measures the depth of water

42
Q

What is a clinometer?

A

Measures the list

43
Q

What is the barometer used for?

A

Measures the amount of moisture in the air

44
Q

What is the Starboard Pennant used for?

A

Senior Officer Present Aboard

45
Q

What is the Prep flag used for?

A

15 Min to Discharge

46
Q

What is the 1st Substitute flag used for?

A

Absence of Flag Officer

47
Q

What is the 2nd Substitute flag used for?

A

Absence of Chief of Staff

48
Q

What is the 3rd substitute flag used for?

A

Absencse of Commanding Officer

49
Q

What is the 4th Substitute flag used for?

A

Absence of civil Official

50
Q
A

Surface Warfare Specialist (10 decks)

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