On Passage / Nav Equipment Quiz Flashcards

1
Q

How often should you fix your position?

A
  • so that the ship is kept free from dangers between fixes, depending on distance to navigational hazards and safe speed
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2
Q

Passage planning is done …

A

berth to berth and to determine safest most economical route

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3
Q

Where would you find the list of publications required on a British flagged vessel?

A

NP100 and Masters Guide to the UK

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4
Q

Advantage on ECDIS on passage planning

A

Route checking

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5
Q

What is alarm able safety depth or safety contour?

A

Safety Contour

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6
Q

The CATZOG value highlights the accuracy of date presented on charts. A1 has how many start

A

6

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7
Q

MGN ….. The use of risk assessment for using ECDIS in RCDS mode

A

MGN 285

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8
Q

Safety contour ?

A
  • marks a boundary between safe water and shallow water with an extra wide isoline
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9
Q

CATZOG C, What accuracy?

A

+/- 500m

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10
Q

What to look out for when pilot on board being an OOW

A
  • OOW remains masters representative despite presence of pilot
  • OOW must ensure pilot instructions are followed provided that they do not endanger the ship or crew
  • OOW maintains effective lookout throughout pilotage
  • OOW must continue performance of Bridge equimpent
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11
Q

What to hand to the pilot

A

Pilot card and check wheelhouse poster

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12
Q

The doppler log can measure what?

A

STW and SOG

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13
Q

Difference ECDIS and ENC ?

A

ECDIS is type approved and therefor complies with IMO performance standards

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14
Q

Echosounders should be checked against hand lead line. When

A

annually, on completion of resit, when any part of the equipment is changed, when there is doubt for accuracy

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15
Q

How accurate is GPS?

A

+- 25m

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16
Q

You must be able to switch to hand steering within

A

30s

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17
Q

How would you check the Echosounder

A

against lead line in port

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18
Q

Do you need to keep a record of a compass error ?

A

Yes

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19
Q

Convert 045 True to compass; variation 4E and deviation 1E

A

040 compass

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20
Q

Azimuth morrow goes on …

A

gyro compass repeater
compass

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21
Q

If the Gyro died, what equipment would be affected

A

Radar
Autopilot
Sat C
AIS
ECDIS

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22
Q

Pelorus gives what type of readings

A

relative bearings to the compass

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23
Q

Magnetic compass should be adjusted when

A
  • they become unreliable
  • when the compass shows physical damage
  • they are first installed
  • the ship undergoes a refit
  • a Period of 2 years
  • collision or major changes in lattitude
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24
Q

Most important equipment on board

A

Magnetic compass

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25
Q

How would you find the Declination of the sun ?

A

Nautical Almanac

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26
Q

How to check a compass

A

transits
amplitude of sun
azimuth of heavenly body

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27
Q

How often should you check the compass

A

once per watch

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28
Q

How would you check a compass with land in sight

A
  • with a transit of two well charted objects line up
  • take the bearing
  • check bearing of the same objects on chart with gives you true bearing
  • compare the two and since variation is on chart
  • you can work out deviation and compare to the one on deviation card
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29
Q

When do you take the bearing at sunrise?

A

when the sun is seen to be a semi diameter above the horizon

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30
Q

How do you check your compass at sunrise

A
  • Take a bearing of the sun at sunrise
  • Note our latitude
  • Find the declination of the sun for that day in nautical almanac
  • enter in worries and use correct table to work out true bearing of sun
    compare the two and you can see gyro or compass error
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31
Q

What do you need for a stabilized Radar

A

Heading in Gyro input

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32
Q

Errors of Radar ?

A

Side Lobes
Shallow and blind sectors
Multiple Echoes
Indirect Echoes
Radar interference

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33
Q

When checking a radar what should you check first

A

Performance monitor
Checks hours of magnetron
familiar yourself with the controls
alignment with heading marker
check EBL and VRM
check blind and shadow sectors card in bridge

34
Q

How would you set your radar for best results to detect the SART ?

A

use X band
Detune Radar to reduce clutter
gain to normal setting
Set radar range to 6 or 12 nm
Sea clutter to min
Rain clutter to match conditions

35
Q

What can Navigational marks fit to make them more visible on radar

A

racon and radar reflector

36
Q

You are departing, how would you set up your radar ?

A

Check EBL against heading marker
Check VRM against radar range rings
Check performance monitor

37
Q

What are the carriage requirements for AIS

A

All ships of 300gt and upwards engaged on International voyages
cargo ships of 500gt not engaged on international voyages and all passenger ships

38
Q

AIS send 3 types of messages

A

Static
Dynamic
Voyage

39
Q

You are entering an area with no vector charts, what must you do before using ECDIS in RCDS mode

A

a risk assessment

40
Q

ECDIS SOLAS requirements

A
  • connection to emergency source of electrical power, gyro compass, speed log and GPS receiver
  • back up arrangements complied with the requirements
  • copy of type approval certificate and performance standards applied
  • be maintained as to latest IHO standards
  • wenn navigating charts are supplied as backup, charts should be up to date
41
Q

Uk digital chart service

A

AVCS

42
Q

How to update ECDIS

A

just use most recent cd as they are cumulative

43
Q

ECDIS is mandatory for vessels

A

passenger ships over 500gt
cargo ships over 3000gt

44
Q

When ECDIS cannot display a chart symbol it will replay a . . . .

A

a question mark Symbol

45
Q

How often to check Autopilot

A

every watch

46
Q

When should you be in hand steering ?

A

when Restricted visibility
in areas of high traffic
when ship maneuvering is critical

47
Q

Max rudder angle

A

35 degrees

48
Q

Emergency steering drill

A

every 3 months

49
Q

You wish the Helmsman to check the swing of the vessels head in a turn. what helm orders to give

A

Meet her

50
Q

How quickly should the rudder move from port to stdb

A

28s

51
Q

When can you be a sole Lookout ?

A

visibility
proximity of dangers
state of weather
master is happy
daytime only
traffic density

52
Q

You are at sea, where would you get the best sources of MET

A

Own Ship
Sat C
Weather fax
Internet
NAVTEX
VHF / MF

53
Q

Describe the warm Sector

A
  • stratus clouds
  • moderate showers or drizzle
  • visibility moderate to poor
  • pressure stops falling
  • Temperature steady but warm
  • wind begins to veer
54
Q

Which ALRS Volume for Weather

A

Volume3

55
Q

By comparing the Wet and Dry Bulb, you can work out the….

A

air temperature and approximate humidity

56
Q

When using Hygrometer how to predict likely onset of fog:

A
  • Measure the Wet and Dry bulb temperatures
  • use this info to find depression
  • go into NP100 into Dewpoint table
  • Plot graph with temperature against time
  • plot graph with sea temperature comparing dew point, when the two lines meet, fog is present
  • at 5 degrees before fog is starting
57
Q

White box around the hygrometer is called ?

A

Stevensen Screen

58
Q

If wet and dry bulb temperatures are the same, what does this indicate

A

100 humidity, Rain

59
Q

how would you tell which side of the TRS you are on?

A

buoy ballots law
wind direction

60
Q

advection Fog

A

when a warm moist air flows over a relative cold sea surface which cools it below its dew point

61
Q

How we compensate for bad weather regarding crew safety

A

Modify watch schedule
restrict access to outer decks
warn galley to prepare
rest crew
check life rafts
rig lifelines
ensure crew wear safety harness

62
Q

Heeling

A

when vessel is inclined by external force such as wind waves

63
Q

How to compensate for bad weather regarding vessels safety ?

A

reduce free surface effect to minimum
increase stability GM
extra lashings
check all emergency comms
scuppers and free imports clear

64
Q

stability of vessel is determined by 2 things What are they

A

Position of G and M
underwater profile

65
Q

How to compensate for bad weather WT integrity

A

Hawse pipe covers on
sea valves closed
vent pipes covered
stormshutters/ deadlights in place
hull openings closed

66
Q

Navtex what frequency does it work on

A

518khz

67
Q

You see a container in the water what should you do?

A

Security Message

68
Q

Where to find Navtex Stations

A

ALRS Volume 3 and 5

69
Q

You see a red flag in the sky what should you do ?

A

Should process to distress and reply ashore by RT

70
Q

Where can you find the MMSI of another yacht

A

ITU List 5 - List of Ship stations and Maritime Mobile Service Identity Assignments

71
Q

Area A3 what coverage

A

Inmarsat geostationary satellite

72
Q

Which Vessels need to comply with GMDSS regulations

A

commercial vessels over 300gt

73
Q

You receive a DSC distress alert on MF in the middle of the Atlantic, What are your actions?

A

refer to IAMSAR volume 3
- listen on appropriate channel ch 16 / 2182 for 5min
- write down information
- then if no answer acknowledge by voice only and relay ashore

74
Q

VHF range

A

depends on height of antenna but up to 30nm

75
Q

You are a vessel over 500gt what must you have on board

A

3 survival craft radios
2 SART
VHF and DSC
NAVTEX
Inmarsat C

76
Q

SAR 32

A

Medical Advice

77
Q

What does TMAS stand for

A

Maritime tele-medical assistance Services

78
Q

Geographical Range

A

the maximum distance at which a light can reach an observer as determined by the height of eye of the observer, the height of the structure and the curvature of the earth.

79
Q

Luminous range

A

maximum distance at which a light can be seen, determined only by the intensity of the light and the visibility at the time. It takes no account of elevation, observer’s height of eye, or curvature of the earth.

80
Q

Nominal range

A

Luminous range for a meteorological visibility of 10 miles. Details of these ranges, and diagrams for use with them, are given in each volume of Admiralty List of Lights.