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ESWS > Navigation > Flashcards

Navigation Flashcards

0
Q

How many IALA regions?

A

2

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1
Q

IALA

A

International association of lighthouse authority

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2
Q

What is variation?

A

Ships compass is effected by earths magnetism

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3
Q

What is deviation?

A

Ships compass is affected by ships metals, electronic equipment.

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4
Q

GMT

A

Greenwich Mean Time

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5
Q

DR

A

Dead reckoning

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6
Q

DIW

A

Dead in water

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7
Q

Explain true bearing:

A

Any bearing in relation to true north given from 000 to 359 degrees.

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8
Q

Explain relative bearing:

A

Any bearing in relation to the ship given from 000 to 359 degrees.

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9
Q

From what and where are the navigation light operated from?

A

Telltale Panel on the bridge behind the Helm

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10
Q

How many navigation lights are there?

A

5

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11
Q

What color is the port running light?

A

Red

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12
Q

What color is the STBD running light?

A

Green

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13
Q

What color is the FWD masthead light?

A

White

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14
Q

What color is the AFT masthead light?

A

White

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15
Q

What color is the stern light?

A

White

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16
Q

Name what is used over during man overboard?

A

Oscar flag, search light, life ring, smoke float

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17
Q

What is the stands called that house gyro repeaters for true bearing and fixed compass card for relative bearing?

A

Pelorus Stands

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18
Q

What is the name of the tool that QM’s use in conjunction with the pelorus to obtain bearing to visual navigation aids during transits through restricted waters?

A

Telescopic Alidade

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19
Q

What is the job of the QMOW?

A

To maintain navigation plot and be the eyes, ears, and voice of the navigator when he is not present.

20
Q

What is the job if the conning officer?

A

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

21
Q

What day shapes are flown for RESTRICTED MANEUVERING?

A

Ball-Diamond-Ball

22
Q

What day shapes are flown for vessel AGROUND?

A

Ball-ball-ball

24
Q

What day shapes are flown for vessel NOT IN COMMAND(DIW)?

A

Ball-ball

25
Q

What day shape is flown for vessel CONSTRAINED BY DRAFT?

A

Cylinder

26
Q

What lights are operated during man overboard?

A

Red on red flashing

27
Q

What lights are operated on the mast during restricted maneuvering?

A

Red over white over red

28
Q

What lights are operated on the mast during vessel at anchor?

A

Red

29
Q

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

A

Red over red

30
Q

What lights are operated on the mast during vessel aground?

A

Red over red over red

31
Q

What are the 4 flags flown during UNREP?

A

Golf
Romeo
Bravo
Prep

32
Q

What tool is used by QM’s to obtain L.O.P.’s from celestial bodies

A

Marine Sextant

33
Q

What tool is used by the QM’s to quickly plot L.O.P.’s during navigation details?

A

Parallel Motion Protractor (PMP)

34
Q

What shape is an electronic fix?

A

Triangle

35
Q

What shape is a visual fix?

A

Circle

36
Q

What shape is a DR fix?

A

Semi-circle

37
Q

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

A

The steamer

38
Q

What 3 times are the commissioning not flown?

A

Precom
Decom
When admiral flag is flying

39
Q

What is a Fathometer?

A

Measures depth of water

40
Q

What is a clinometer?

A

Measures the list

41
Q

What is a barometer?

A

Measures the amount of moisture in the air

42
Q

What is the helm used for?

A

Steering the ship

43
Q

What is the lee helm used for?

A

Control speed of the ship

44
Q

What is the wind speed for GALES?

A

34-37 knots

45
Q

What is the wind speed for storms?

A

48-63 knots

46
Q

What is the wind speed for hurricanes?

A

64+ knots

47
Q

What is the wind speed for small craft advisory?

A

15-3 knots

48
Q

What day shape is flown for vessel AT ANCHOR?

A

Ball

ESWS (8 decks)

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