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Oow Flashcards

1
Q

What is Maritime labour convention

A

One of the 4 pillars of the IMO which sets out the minimums standards for seafarers on ships. 5 sections

MSN 1848

Ships over 500gt

1 MINIMUM REQUIREMENTS FOR SEAFARERS TO WORK ON SHIPS

2 conditions of employment

3 accommodation catering

4 health

5 compliance and enforcement

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2
Q

What are the duties of the oow at sea

A

To ensure the passengers crew and vessel are kept safe by complying with the ships sms, the masters standing orders and the colregs and being safety and security conscious.

Rule 5 - gmdss watch

Comply with marpol

Security awareness

Monitor the performance of navigation equipment

Promote safety/ effectively communicate with captain and crew.

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3
Q

Actions for a pilot on board

P A C E

A

Probe - what are your intentions

Agree - I agree your Intentions are safe

Challenge - you appear to be departing from the plan

Emergency - call captain- stop- your actions are putting the vessel into danger

Remove pilot request another

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4
Q

What are the Duties of the oow in port

To act as the masters representative and maintain security and safety onboard and ensure the vessel is complying with the regulations in place.

Marpol compliance

ISPS compliance

Ships sms

A

Lines fenders boarding arrangements
Weather and port traffic- vhf . Recording in ships log. Deck lighting.

Regular rounds looking for fire hazards. Unusual sounds or smells. Escape hatches and doorways clear of obstructions. Regular security patrols. Vessel is locked down. Crew activity monitored. CCTV being observed.

Marpol being complied with- garbage- no signs of pollution.

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5
Q

Helm orders - closed loop

A

Steady- reduce swing as rapidly as possible

Meet her - check swing of vessel

Nothing to port/star- avoid heading to go to -

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6
Q

Contents of rescue boat

A 
Compass 
Oars 
Torch 
Searchlight 
Tpa 
Sea anchor 
Bailer 
Boat hook 
Jason’s cradle 
Buoyant line with ring
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7
Q

Flares burn time

A

Parachute - no less 40 sec 30 mile range

Handheld 1 min 3 mile range

Smoke 3 minutes

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8
Q

How does an hru work

A

Works on pressure- as the pressure increases the unit compresses drawing the securing pin up clear of the spring loaded blade which cuts the line.

In the middle of an arrangement. Leaves the weak point attached to pull on the painter and released the life raft from the senhouse slip

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9
Q

What markings will you find on a life raft

A 
Serial number 
Date of manufacture 
Capacity 
Makers name 
Last serviced
Approving authority
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10
Q

What are chart datums

A

Lat usually chart datum

_ drying heights above chart datum

Air draft HAT

All other heights above MHWS

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11
Q

How would you set up the ecdis

A

As per the ships sms

Input manual fix to verify position

Check system time

Setup replicated on both units

Safety contour and depth correct

Audible alarm is working

System units are correct

Chart orientation / screen layout

Correct route is loaded

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12
Q

What is s52

A

S52 is approved standard for chart display information. - worldwide uniformity- symbols language

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13
Q

What is a safety depth and safety contour

A

Safety contour is a clear no go areas set to a contour- has an audible alarm
Take into account squat , HOT, ukc required . Draught , manoeuvrability and catzoc

Safety depth - highlights all depths less than safety depth. Gives an indication. Usually more or same as safety contour

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14
Q

What are the ecdis alarms

A 
GPS discrepancies 
Ecdis malfunction / heading speed 
Critical point
Xte
Restricted area 
Safety contour 
Different datum
Switching to raster
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15
Q

Magnetic compass checks

A 
Freedom of movement of the gimbal 
So compass stays flat 
Card floating freely 
No liquid leaks 
Liquid free of bubbles and clear 
No tools or magnetic equipment in the area
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16
Q

Some autopilot settings from rudder command signal

A

Can set rudder limit

Counter rudder

Rudder reaction - amount of rudder for heading correction

Weather control to account for yaw

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17
Q

Hsa

Would use to find compass error or a fix

A

Use a station pointer and compare with compass bearings

No station pointer take bearing and draw lines on the chart after you’ve done the maths. Use protractor to draw your triangles and then pair of compasses to draw circles. Where they meet is your position

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18
Q

Who are the Mca

A

U.K. department for transport

Produce legislation and guidance to maritime industry And set standards And Issue certification

Responsible for safety and standard on U.K. ships and U.K. waters

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19
Q

Who are the IHO

A

Inter government organisation support safety of navigation and protect environment. Surveying charts and scientific development

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20
Q

What it sms

What should it do

What should it involve

Safety management system in line with ism

A

Identify clear levels of authority and communication between the management company captain and crew and have ship specific procedures in place to deal with all shipboard situations and operations that comply with the companies policies and legislation.

Training and drill requirements

Familiarisations

Planned maintenance systems

Manning scales

Emergency procedures

Company contacts and dpa

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21
Q

What is included in an sms

A

Training and drill requirements

Familiarisations

Planned maintenance systems

Manning scales

Emergency procedures

Company contacts and dpa

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22
Q

What is ly3

A

Msn 1851

Implanting international standard to yachting

Now red ensign group

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23
Q

What are the chapters of mlc

A

1- minimum requirements for seafarers to work on ships

2-conditions of employment

3-accommodation catering and recreational facilities

4- health

5-compliance and enforcement

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24
Q

What is in an sea

Mgn 477

A

A seamen’s employment agreement signed by the employer and the seafarer which state the terms of employment and the rights of the seafarer.

Annual leave

Notice of termination and notice period

Record of employment on the ship

Capacity in which the seafarer is to work

Hours of rest

Wages

Repatriation

Health care

Signed by company

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25
Q

What is a safety officers job

A

Implement safety procedures

Initiate safety measures before an accident happens

Develop and sustain a high level of safety culture on board and set a good example

Carry out safety inspections

stop dangerous work

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26
Q

What should a familiarisation involve

A

Communicate with others on board on safety matters and understand signs and alarms

Know what to do if

Man overboard

Fire or smoke

Alarm sounded

Muster stations and escape routes

Locate and don lifejacket

Raise the alarm and have basic knowledge of portable fire extinguishers

Close and open watertight doors

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27
Q

What is an all seasons load line

A

A load line that remains the same all year round and In all oceans and just takes into account the rise as the vessel moves from freshwater to saltwater.

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28
Q

What is freshwater allowance

A

It’s the the line to which the vessel can sit on in fresh water to allow for the rise as the vessel moves to freshwater

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29
Q

What is ahead of a depression.

Approaching warm front

A

High cirrus cloud ahead of system from warm air that has been pushed up and cooled. As it approached cloud base lowers forming cirrostratus and nimbostratus bringing rain poor visibility pressure falls wind strength increases and begins to veer

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30
Q

Behind the warm front in the warm sector

A

Pressure steady. Temperature rises . Stratocumulus cloud. Rain eases. Possibility of fog. Wind force steady . Poor vis.

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31
Q

Approaching cold front or at cold front

A

Cumulonimbus cloud. Pressure rises and wind force increases and veers. Temperature falls with heavy rain and squalls. Poor visibility

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32
Q

Behind the cold front

A

Wind force decreasing. Cumulus cloud with possible showers. Visibility clearing and pressure rising

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33
Q

How do you predict fog at sea

A

Take regular readings of masons hygrometer. Use the table to find the dew point temperature from the temperature and wet bulb depression.

Plot the dew pint temp against the sea Water temperature

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34
Q

Sea smoke. Fog

A

Cold air over a warm moist air low down that has been warmed and saturated by the sea.

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35
Q

How would you setup the radar

BGTC

A

So I have the clearest picture available and the most suitable range.

Check mast clear and turn on and warm up

Everything to zero

Adjust brilliance for a clear image

Turn up gain until you get a speckle and then reduce slightly

Tuning - clearest brightest picture
Find a target and suppress with rain- tune and then remove clutter.

Check vrm and ebl. Performance monitor

36
Q

What do you need for a stabilised radar

What is unstabalised radar

A

Gyro feed and log

Heading up. Can still get relative bearings of ships and work out cpa as you have the oa line

No arpa . Can’t get aspect

37
Q

What is a PI line

A

A Pi line is a bearing and distance transferred from a chart to a radar and is a means to determine if you are on your pre determined track.

By using the distance off the land and your course you can set lines on the radar that give a clear indication if you have deviated from the course.

38
Q

What is navtex

A

Part of gmdss equipment which receives automatic MSI which can be pre set to certain nav areas and certain alerts.

Transmits up to 400 miles offshore and the area is divided in 21 nav areas with different nav warnings. Operates on 518 khz

39
Q

What is passage planning and why do we do it

A

A berth to berth risk assessment of the intended voyage to ensure the safety of the crew and the ship.

40
Q

What is a dpa and what are his duties

A

Responsible for monitoring the safe management and operation of the ship and that the ship is complying with the sms. Provide a link between the ships crew and the highest level of management

41
Q

What are some of the chapters of the red ensign group.

A

Construction and stability

Lsa appliances

Fire safety

Fire appliances

Gmdss

Navigation equipment

Accommodation and crew welfare

42
Q

What is solas and some of its chapters

A

Solas chapter 5 safety of navigation for all vessels

Chapter 9 safety management

Chapter 3 lsa
Chapter 4 radio communication

43
Q

What is a Mercator chart

What is a transverse Mercator

What is a gnomic chart

A

A chart used for navigation which cuts all the meridians at the same angle.

A large scale chart used for harbours and pilotage which are to scale.

A chart used for ocean route planning. Takes into account the curvature of the earth so you can plot great circle routes and transfer them to Mercator charts for navigating

44
Q

How would you update a paper chart

A

I would look up the chart in the cumulative notice to mariners and make sure I have the most recent edition and that the previous corrections have been done. I would then check every subsequent weekly notice to mariners for any other corrections and make the corrections in majenta ink and note the correction in the bottom left corner. I would them make a note in the chart correction log

I could also use the search function on the admiralty website.

45
Q

What is ais

A

A great aid to navigation which automatically transmits and receives specific data over vhf frequencies. Can only transmit one at a time so uses sotdma to sort transmission.

comprised of static data voyage data and

dynamic data- speed heading

Class a and b - b cannot always transmit and A takes priority.

46
Q

What is sat c

A

Part of gmdss system that is split into 4 ocean areas with maritime rescue coordination centres in each area which operate in sea areas up to a3 using Inmarsat satellites.

Atlantic east
Atlantic west
Indian Ocean
Pacific ocean

47
Q

What are the navtex warnings that can’t be rejected.

A

A- nav warnings

B met warnings

D search and rescue information and piracy

L nav warnings

48
Q

What is the masters guide to the U.K. flag

A

A guide to help you comply with U.K. requirements and regulations for U.K. shipping with further information listed in mgn’s

Chapters

Manning

Hours of rest

Log books

Health and safety

Surveys and accident reporting

49
Q

What is the bridge procedures guide and what is in it

A

Best guidance and practice on how do operate a bridge.

Effective bridge organisation

Passage planning

Duties of the oow

Operation and maintenance of bridge equipment

Pilotage

Checklists for navigation and emergencies

50
Q

What is ism

A

Part of solas brought in to prevent the loss of life at sea and ensure the safe operations of ships and pollution prevention.

Minimise scope for poor or incorrect decisions and implement clear procedures and standards

Mgn 40

51
Q

What is good radar practice

A

Quality of the performance needs to be checked regularly

Vrm check against range rings

Ebl against compass

Check performance monitor

Check vrm and ebl against charted when stationary objects

52
Q

Receipt of a distress alert mid Atlantic

A

Tune to 2182 acknowledge receipt and establish comms

53
Q

How to send a mayday relay

A

Send an All ships urgency alert

Mayday relay mayday relay mayday relay

This is your ship

Mayday
 boat name call sign
Position 
Nature of distress 
Action 
Number of people 
Any other info
54
Q

What would you expect in a handover from the outgoing officer.

A

Description of your daily tasks and key day to day activities.

Explanation of the computer system and ships sms

Any Ongoing issues with equipment and open projects

Briefed on the crew.

Assistance with familiarisation with all bridge equipment lsa and fire equipment.

55
Q

What is an effective risk assessment

A

identify all the hazards

Determine who may be harmed and how

Determine the likelihood of harm arising

Quantify the severity of the harm

Provide the basis for implementing or improving control measures

Provide a basis for regular review and updating

56
Q

What are the different risk assessments

A

Generic by management

Vessel specific risks

Toolbox talks

Personal assessment of risk

57
Q

Passage planning

A berth to berth risk assessment of the intended voyage.

Using the 4 stages APEM

A

Gather all the information necessary to make the safest and most economical route from berth to berth.

Make sure you have the most up to date charts and publications for the intended passage. Check on crew requirements, certification and documentation are in order and valid. Ensure the vessel is capable of the passage and take into account distances of the intended legs and the fuel range of the vessel. Determine the provisions required for fuel water food . Check for weather trends and tendencies for the passage. Tidal windows and areas of strong current identified. Identify ports of refuge and hazardous areas to be avoided. When you are happy that it is safe for the passage to go ahead you can move onto planning and start marking out your no go areas on the chart and start marking on course legs and distances and adding information to aid in the bridge team such as aids to navigation and hazards to navigation. PI lines for coastal and pilotage areas. Tide critical areas. Radio reporting points, abort points, ports of refuge , vts reporting points, pilot requirements, call master points along with a summary of the plan broken down over each leg.

58
Q

What are some aids to navigation

A

Radar conspicuous land.

Lighthouses

Charted objects

Buoys

Sector lights

Leading lines

Clearing lines

59
Q

What are some hazards to navigation

A

Shallow areas

Strong tidal areas

Bad weather

Wrecks

Drifting hazards

Naval exercises

Heavy traffic

Poor catzoc

60
Q

What is the execution.

A

Executing the plan is when we can add additional information closer to the time of departure. Check the Latest weather forecast and the latest tidal information. Determine time of departure and calculate eta’s. Expected traffic on the passage and any hazards to navigation in place. Confirm logistical details such as pilots berthing and bunkering. Complete ore departure checks and make logbook entries and any changes due to weather or other causes need to be approved by the master and the bridge team informed.

61
Q

What is arpa and how does it work

A

Arpa is an automatic radar plotting aid which uses own ships course and speed to complete the O-A triangle plot giving the targets

true course and speed
CPA
Tcpa
Range and bearing

Now crossing range
Now crossing time

62
Q

What is radar tuning

A

Adjusting to find the best match in frequencies to get the clearest picture with the best display

Re tune after half an hour after the magnetron has warmed up

63
Q

What is course up and heads up

A

The view out the window good for situational awareness.

Course up takes account for the ships head movement. Where as heads up the land around will move with it and has a gyro feed

Heads up is the default display in an emergency and points dead ahead due to the heading marker switch installed on the radar.

64
Q

Heading marker alignment

A

Switch to heads up and find a distant object dead ahead and make sure it is on line. Fine tune it consult the manual or get it looked at by a precessional.

65
Q

How would you set your radars up for navigation.

A

S band 6 mile with regular long range scanning. Wider horizontal beam width so less detail but can see further ahead and affected less by rain and sea clutter

X band 3 miles with PI lines on x band for greater discrimination. Off set to see further ahead and a clearer picture. Better target identification and discrimination.

66
Q

How does radar work.

A

Sends a rectangular pulse at the speed of light over a very narrow arc and times how long it takes for the signal to return. From this it can work out the range and bearing if a target.

Pulse lengths depend on range scale

67
Q

What are the radar errors ?

A

Indirect false echoes are always in the shadow sector and bounce of the own ship. Correct range and bearing of what it has bounced off.

Side lobe is radiation from the main beam creating an arching either side of the target. Common if gain to high.

Multiple echo is bouncing back and forth between the radar and the target so same bearing but range doubling each time it is reflected.

Shadow sectors - reduces intensity of signal

Blind sectors- usually at the stern around the funnel. So blind astern. Install second scanner

68
Q

Limitations of arpa

A

If the speed or heading input is not correct then the arpa will calculate incorrect W-a triangles and therefore giving false readings on the arpa card.

Bearing discriminations from the radar

The 3 minute wait

On arpa you can set guard zones to automatically acquire targets. Leave a hole in the middle so you don’t acquire clutter.

69
Q

What is DGPS

A

Differential GPS monitors its own position which never moves against the satellites and calculates the errors and sends the updated position on MF frequency to a DGPS receiver. Common around the coast in developed countries.

70
Q

What is a hydrometer

A

Used to measure the density of water to find out exactly where you can load your vessel to to account for the rise as you move to saltwater

With the density of the water you can calculate your mass with the underwater dimensions.

71
Q

What is bearing discrimination ?

A

The ability for a radar to distinguish between two targets at similar ranges and similar bearings by using a narrow horizontal beam width

72
Q

What is range discrimination ?

A

The ability of the radar to distinguish between two targets which lie on the same bearing at different ranges. To achieve this the pulses need to be separated by a minimum of half a pulse length and have a large vertical beam width 20-30 degrees

73
Q

Factors that effect a radars detection range

A

Scanner height
Vertical beam width
Pulse length

74
Q

What is pulse repetition frequency ?

A

The amount of pulses per sent out per second .

Long range- less pulses -400

Close range -2000

75
Q

What is situational awareness

A

An appreciation of what is happening around the ship, where it is planned to be and wether any other vessel ,event or conditions developing in the vicinity pose a risk to the safety of the ship.

Use all of available equipment and full understanding of all of its functions and limitations.

76
Q

What is gross tonnage and net tonnage

A

Gross tonnage is maximum amount of accessible volume

Net tonnage is its earning capacity - deducting machinery spaces and crew accommodation

77
Q

What is load displacement and light displacement

A

Load displacement - fully stored ready for sea floating at load line

Light displacement - ready for sea no crew stores fuel water -

Load deadweight is the difference between the two

78
Q

What is the angle of loll

A

Due to decreasing stability. Started off as unstable and now has no righting lever to upright the vessel and is prone to capsizing from external forces.

Neutral - G and M the same

Stable - G below M

Unstable G above M

79
Q

Ecdis disadvantages

Over reliance 
Alarm fatigue 
Info clutter 
Power and gps reliant 
Difference software 
Not full coverage 
Special training 
Navigator becomes over reliant
A

Ecdis advantage

Fast accurate planning

Fusion of nav aid information

Automatic fast updates

Pre set alarms increases safety

80
Q

What is port state control and psco

A

An inspection regime for countries to inspect ships of any flag within their waters and make sure they are complying with solas marpol mlc stcw and complying with the law

81
Q

What is TPC

A

Tonnes per cm immersion. When loading a weight you can work out how much the draught will increase.

82
Q

Fire extinguishers

A

Class c gas can only use powder and hi fog

Co2 class b - and electric

Foam a and b

Powder - abc

Heat fuel oxygen

83
Q

Life raft case

A

Solas marking

Type of emergency pack

Length of painter

84
Q

Bridge organisation

A

Record keeping

Safe manning

Communication

Masters standing orders

Prepared for emergencies

85
Q

ALRS volume 1 costal radio stations

Coastguard

Satellite comms

Medical advice

Piracy reports

A

Volume 2

Radar beacons vhf finding stations

Aton ais dgps corrections

86
Q

Sailing directions

A

Buoyage
Nav marks
Port approaches And ports
Wether trends

87
Q

Admiralty routing charts

A

Each month and each ocean area

Average wind direction and force

Ocean currents

Ice limits

Average wave heights

Incidence of fog

Dew point temps

Mean air and sea temps

Mean air pressure

Oow (2 decks)

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