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Maison Tests en ligne CES Tous types de navires 2nd-Off / 3rd-Off Test for Officers onboard about Navigation, Operational Level (CES v6.0)
Tests en ligne : Test for Officers onboard about Navigation, Operational Level (CES v6.0)
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Le test comprend 80 questions aléatoires.
Total de questions sur ce sujet : 209
Total de questions sur ce sujet : 209
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What can be simply rigged to assist a survival craft in keeping alongside own vessel?
The survival craft painter made fast on the vessel’s deck.
A single weighted line hanging over the side from the deck.
A painter rigged fore and aft against the vessel’s side.
The accommodation ladder deployed to the water surface.
What is the correct understanding of the term “Block Coefficient” as applied to a ship?
The coefficient of a Block and Tackle.
The restriction of a valve in a pipe to the flow of fluid through that pipe.
The comparisons of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.
The ratio of the waterplane shape of the ship to a rectangle of the same extreme dimensions.
What are the three possible types of messages seen when there is an ECDIS alert?
Either an Alarm, an Indication or a Caution.
Either an Alarm, a Warning or an Information.
Either an Alarm, a Warning or a Caution.
Either an Alarm, an Indication or a Caution.
The ship is drifting in the open sea with a temporary engine breakdown. The ship is equipped with GPS navigation equipment. What should the bridge Officer of the Watch do in this situation?
All of the possible answers.
Keep a good lookout for other ships.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Display the “Not under Command” signal and switch off the normal steaming lights.
Two ships are meeting in a restricted channel as illustrated. Which of the following actions would be the most suitable to take on both vessels as they approach and pass each other?
Slow down if possible without losing steerage and be prepared for prompt application of rudder to counteract any swing as they approach and pass each other.
Increase speed slightly to pass each other as quickly as possible and thereby reduce the effects of “ship to ship” interaction.
Maintain speed and a straight course on the starboard side of the channel.
Keep as far as possible on the starboard side of the channel and maintain speed to retain effective steerage.
The Master has decided to “single up” to a spring line at each end as the last lines to let go whilst unmooring. Which of the following methods should be used to hold the lines, whilst waiting for the order to “let go”?
The line should be turned up on the bitts, fig. 1.
The line should be held on a stopper ready for immediate release, fig. 4.
The eye of the lines should be put on the bitts, fig. 2.
The line should be kept on the warping drum of a deck winch, fig. 3.
You are in an area of restricted visibility and hear this signal. It is repeated at 2 minutes intervals. What does it indicate?
That there is another vessel in the vicinity and that she has just altered course to port.
That there is another vessel nearby, that she is underway, but stopped and making no way through the water.
That there are two more vessels nearby.
That there is another vessel nearby, but that she is at anchor.
What immediate actions should the Officer of the Watch take when the ship goes aground on an uncharted shoal in the middle of the ocean?
Stop engines and immediately request “Full Astern”.
Stop engines and call the Master.
Stop engines and tell the engine room to switch over to high suctions.
Sound the General Alarm and plot the ships position.
If a mooring winch brake tension is set to 60 tons, the setting has a safely allowance, what would be the maximum breaking load (MBL) of a wire used on the winch?
61 tons.
100 tons.
40 tons.
80 tons.
What is “AIR DRAUGHT”, in the figure?
Air draught is indicated by C, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by B, in the figure.
You are on a power-driven vessel underway in open water. This vessel is sighted wide on the port bow. It’s bearing is opening, but its distance is closing rapidly. Which of the following is a correct assessment of the situation and the action to be taken?
Risk of collision is deemed to exist and I will make a broad alteration of course to starboard, sounding one short blast. I will re-assess the situation when the alteration is carried out.
Risk of collision is deemed not to exist and I will maintain my course and speed. I will continue to monitor the situation.
Risk of collision is a possibility. I will maintain my course and speed for now, but be prepared for an alteration of course to port if the CPA seems to be less than 0,2 nm as we draw closer.
Risk of collision is deemed not to exist. However, to be sure of a safe passing distance, I will reduce my speed to allow the other vessel to pass ahead.
Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
The (ISC) Bridge Procedures Guide.
The Oxford Concise Dictionary.
Standard Marine Navigational Vocabulary.
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
A ship normally turns (swings) around a point which is not the centre of gravity. What is this point normally called?
Centre of Buoyancy.
Pivot Point.
Centre of Turn.
Centre of Floatation.
What is the probable cause of an error in position of the ship obtained from the GPS system?
A three dimensional instead of a two dimensional position output.
Abnormal sun spot activity causing unusual radiation effects.
Incorrect height of the antenna.
All of the suggested answers.
Who is responsible for the number and the position of any tugs to be used during a mooring operation?
The Pilot is fully responsible for the number and use of tugs within the port area.
The Master, with consideration of the advice of the pilot.
The Port Authority will dictate the tug requirements and their use within the port limits.
It will be only the wind speed that will determine the required number of tugs and how they are used.
A ship is being overtaken by another ship while proceeding along a river. What should be the required procedure?
The overtaking vessel should request permission from the other ship by sounding two prolonged blasts followed by two short blasts on the whistle or by direct VHF contact.
The overtaking vessel can overtake but must allow sufficient space to reduce the interaction between the two vessels.
The overtaking vessel should request permission to overtake from the Port Control VTS.
There should be no overtaking in these confined waters.
The Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the “con” of the ship. What actions should the Officer of the Watch (OOW) take in this situation?
Watch the actions made by the Master and if not dangerous, wait until the Master becomes more capable to take control or leaves the bridge.
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
Tell the Master you consider him incapable of taking over the responsibility of the watch and that he should retire to his cabin and sleep it off.
Tell the Master you do not think this is a good idea and retain control of the watch.
According to the International Regulations for Preventing Collisions and the illustrated lights, what type of vessel is this and from what direction is it viewed?
This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 m in the direction of the all-round white light. Looking at its port side.
This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 metres in the direction of the all-round red light. Looking at it from astern.
This is a vessel engaged in pilotage duties at anchor. Looking at its port side.
According to rule 13 of the International Regulations for Preventing Collisions at Sea, what is the definition of “an overtaking vessel”?
When the vessel is detected as a radar target or sighted visually in a position directly astern.
When coming up with another vessel from a direction more than 45° abaft her beam.
When coming up with another vessel from a direction more than 22,5° abaft her beam.
When coming up with another vessel from any direction abaft her beam.
You are in open water and clear conditions. You are approaching the pilot station when you hear this signal from a vessel ahead of you. What does it signify?
That the vessel is starting his engine and resuming his passage.
That the vessel is altering his course to starboard.
That the vessel is picking up his pilot.
That the vessel is operating astern propulsion.
You are on a power-driven vessel underway in open water. You sight these lights on the port bow, on a steady bearing. The distance is closing. What are you looking at and what action will you take in compliance with the International Regulations for Preventing Collision at Sea?
This is a power-driven vessel, more than 50 metres in length or less than 50 metres in length and showing a second masthead light, restricted in her ability to manoeuvre. The sidelight of a second vessel can be seen beyond her. Under rule 18, I am obliged to keep clear of the first vessel and will therefore take appropriate avoiding action.
This is a power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres and the tow, both being restricted in their ability to manoeuvre, seen from the starboard side. Under rule 18, I am required to keep clear and will take appropriate avoiding action.
What would be considered the most favourable heading of a ship when launching a lifeboat?
The ship should lie stopped in the water with the weather on the opposite side to the boat to be launched.
The ship should steer about 100° of the prevailing weather and sea with the boat to be launched on the leeside.
The ship should steer with the prevailing weather and sea on the beam and the boat to be launch on the leeside.
The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.
A tug is moving towards the bow of the ship to make fast and is in the vicinity of the ship’s shoulder, as illustrated. What specific danger should be considered when making this approach to the bow?
The positive pressure field at the ships bow may repel the tug and make the connection very difficult to establish.
All of the alternative answers.
The stern of the tug may be sucked in towards the bow and also suffer a reduction in the positive GM, making it very unstable.
The tug may be turned across the bow of the ship and also suffer a lose of stability with a danger of being turned over if touched by the ship.
You are approaching the port entrance. What do these lights mean?
A vessel may proceed only when she has received specific orders to do so.
Vessels may proceed – one-way traffic.
A vessel may proceed only when she has received specific orders to do so, except that vessels which can safely navigate outside the main channel need not comply with this message.
Vessels may proceed – two-way traffic.
What radar device assists in the detection and location of a survival craft?
EPIRB beacon.
A personal locator beacon.
SART beacon.
AIS beacon.
The position of the ship provided by the GPS should always be confirmed by other means, when possible. Which of the following suggested methods would be the most accurate?
Compass bearings of three shore objects.
Bearing using the Radio Direction Finding of three radio beacons.
The ranges of three distinctive shore objects on the radar.
Bearing and distance from a navigational Buoy.
What is the colour and characteristic of a “towing light”, as defined in the International Regulations for Preventing Collisions at Sea?
One of two all-round amber, alternate flashing lights, displayed where they can best be seen.
White, fixed, displayed as an additional light on the foremast over an arc of 225°, from right ahead to 22,5° abaft the beam on each side of the vessel.
Yellow, fixed, seen over an arc of 135° and so arranged as to display 67,5° from right aft on each side of the vessel.
Amber, all-round, flashing, where it can best be seen.
With the Master on the bridge, when is the Officer of the Watch officially relieved of their responsibility for the vessel?
It varies from deep sea to pilotage operations and is never very clear.
As soon as the Master enters the bridge.
When the Master starts giving steering orders.
When the Master informs the Officer of the Watch that he is taking over the “con”.
Who is ultimately responsible for the voyage plan?
The Master.
The Second Officer as the official Navigation officer.
The Officer of the Watch (OOW) on duty.
The ship owner will provide overall parameters within which the ship must follow.
How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?
Select True ground stabilised vectors and make the vectors from both buoys at the entrance to the channel pass either side of the centre of the screen.
Select Relative motion display and make Own Ship vector pass through the middle of the entrance to the channel.
Acquire the buoy at the entrance to the channel and on relative vector display alter course to make the vector of the buoy pass directly through the centre of the screen.
Select ground stabilised true motion display and alter course so that own ships true vector passes through the middle of the entrance to the channel.
When the temperature of the air increases with height it is known as a “Temperature Inversion” and may influence the performance of some instruments on the ship. What should the bridge Officer of the Watch be prepared to happen?
The GPS may give errors of position because of interference of incoming signals from the satellites.
The radar will be show abnormal sea clutter as the pulse is trapped by the inversion.
Abnormal ranges of VHF RT and Second Trace Returns on the radar.
The bearings obtained from the Directional Finder (DF) will not be as accurate as normal.
The ship has a single fixed pitch right-handed propeller and is going astern as illustrated. What is the most likely way the ship will react in these circumstances?
The ship will go straight astern and the heading will remain approximately the same.
The stern will fall off to starboard, making the heading swing to port.
The stern will “back” into the wind and the ship’s heading will swing to starboard.
The bow will “seek” the wind and the ship will swing to port.
What does this flag mean?
I have a diver down; keep well clear at slow speed.
Yes (affirmative).
My vessel is stopped and making no way through the water.
I wish to communicate with you.
What do the shapes that this vessel is displaying tell us about her?
That she is engaged in towing.
That she is not under command.
That she is restricted in her ability to manoeuvre.
That she is constrained by her draught.
What is the purpose of a fire wire?
A wire for handling fire buckets.
A wire for pulling burning ships off the pier.
A wire for securing the Fire Tug alongside a burning ship.
A wire for pulling fire-hoses up to the top bridge.
What special equipment can often provide assistance in locating a survival craft or man overboard and in the water?
AIS.
A sectored search pattern.
A SART.
A RACON.
Is the location of the Compass Binnacle critical?
Yes, it should be on the fore and aft centreline of the ship.
Yes, it should be away from all electrical power cables.
Yes, it should be sited on a non-metallic base if possible.
Yes, for the reasons stated in all of the suggested answers.
Which method is used to make a physical connection between a rescue vessel and a wreck?
Heaving line.
Rocket line.
Cosmos line.
Sputnik line.
What does this flag mean?
I wish to communicate with you.
My vessel is stopped and making no way through the water.
I have a diver down; keep well clear at slow speed.
Yes (affirmative).
What is the depth of an iceberg below the surface of the sea?
The draught of an iceberg is normally about 3/4 of its total depth.
The draught of an iceberg varies with the type of berg and its age.
The draught of an iceberg is about the same as the visible part of the iceberg above the water.
The depth of an iceberg below the surface is always about one sixth of its total depth.
Is the location of a vessel’s standard compass binnacle critical?
Yes, it should be away from major electrical power cables.
Yes, it should be on the fore and aft centreline of the ship.
Yes, for the reasons stated in all of the suggested answers.
Yes, it should be sited on a non-metallic base if possible.
What is important to check when transferring a position from the GPS receiver to a paper chart?
Ensure that the chart has been corrected up to date.
The chart datum is correct for the area the vessel is located.
That the chart datum is also WGS84 or there are corrections.
That it is a “2D” fix and the antenna height is set correctly.
When should a ship’s officer use some of the English language found in the IMO’s publication “Standard Marine Communication Phrases”?
When talking on the VHF between ships of differing flag states.
When giving orders to a multi-national bridge team.
In circumstances described in all of the answers provided.
When talking between ship and shore in a foreign land.
Two ships travelling in opposite directions are to pass each other in a narrow river, as illustrated. Explain what is likely to happen as they pass each other?
Due to interaction, the bows will repel each other, and then when alongside each other the two ships will be sucked together and finally the sterns will be repelled as they start to pass clear.
There will be very little effect between the two ships as they pass.
Due to interaction, the bows will attract each other as they approach, then they will repel each other alongside and as they pass clear, the sterns will be attracted.
As they approach, rudder should be applied quickly to avoid sheering into the path of each other. Then as they are alongside they will be attracted and finally repel each other as they pass clear.
In a canal without water flow, if a vessel was approaching a bank at an angle, what would be the probable effect on it?
The whole vessel would continue straight towards the bank and would require a large helm order to avoid going aground.
The vessel’s bow is attracted by the bank.
The vessel’s bow is pushed away from the bank.
The vessel’s stern is pushed away from the bank.
The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?
Stop engines and check over the side for any signs of pollution.
Call the Master and check the position for any immediate dangers.
Contact the other ship and send the bridge lookout down to start taking soundings.
Sound the General Alarm and stop engines.
What action should the Officer of the Watch (OOW) take if he is forced to make a major deviation from the voyage plan?
There is no special action necessary.
Make an appropriate entry in the Log Book.
Check that the deviation will not lead into danger.
Inform the Master.
What does this signal flag indicate when seen on a vessel in a port approach?
Keep clear. I have divers down.
I require a pilot.
I am in distress and require immediate assistance.
I require medical assistance.
What are the required data inputs into most gyro compasses to reduce any possible compass error?
All of the data in the suggested answers.
Maximum helm angle and rolling period.
Latitude and Speed.
Deviation and Variation.
What are the immediate duties of the bridge Officer of the Watch when the ship suddenly runs into a fog bank?
Commence sounding the fog signal and reduce speed to Slow Ahead.
Commence sounding the fog signal and if the radar indicates no echoes in the vicinity, proceed at the normal speed until ships are detected on the radar or until the fog lifts.
Commence sounding the fog signal and call the Master and wait for him to arrive before taking any further actions.
Commence sounding the fog signal, engines on standby, call the Master and lookout, if not already on duty.
Which statement best describes how land moves, if at all, on an ECDIS set in North-up, relative motion mode?
Land is stopped with the vessel symbol moving across the sea floor.
Land on the chart screen moves relative to the ship symbol.
The land is always in the middle of the screen.
This is a feature only seen on radar displays.
The rudder is in the hard over position with the propeller stopped and the ship turning slowly. On a ship with a single fixed pitch right handed propeller and no thrusters, what can be done to make the ship increase the speed of turn without significantly increasing the forward speed of the ship?
Give the engines a short kick ahead.
Give dead slow ahead on the engines and leave the rudder in the hard over position.
Give full astern on the engines until ship has stopped and then full ahead on the engines with rudder hard over.
Give half astern on the engines as this will increase the rate of turn.
Which option best completes the following statement? An operator using ECDIS, will notice an out of position navigation buoy because:
A local port authority would send an automatic signal to ECDIS.
It is coloured orange on an ECDIS display.
The radar return and ENC buoy symbol will not coincide.
There will be a flashing alarm on ECDIS showing which one is out.
The maximum height that a pilot should be required to climb on a pilot ladder before reaching the deck or stepping onto an accommodation ladder platform is:
15 mtrs.
12 mtrs.
9 mtrs.
6 mtrs.
The ship is required to be stopped in the water as quickly as possible, but without major changes to the ship’s heading. What is the most effective method to achieve this?
Make a zig zag manoeuvre while reducing the engine power.
Make a complete turn while reducing the engine power.
The use of the rudder hard over both sides combined with reducing engine power, a method known as “high frequency rudder cycling”.
Put the engine full astern and keep the rudder amidships.
You are on a power-driven vessel underway in open water. This vessel is sighted directly ahead. The distance is closing slowly. What action will you take under the International Collision Regulations and why?
The vessel is on a steady bearing and the distance is closing. I will therefore take avoiding action, altering course to starboard and sounding one short blast under rules 14 and 16.
I will maintain my course and speed. The other vessel is being overtaken and is therefore obliged to keep out of the way by rule 13.
I will keep out of her way. I am the overtaking vessel and am obliged to keep clear under rule 13.
When making a new pilot ladder onboard the ship, which of the following ropes would be best suited as the side ropes on which the steps are fastened?
Polypropylene rope.
Uncovered manila rope.
Nylon rope.
Polyester rope.
Which of the following precautions should be taken when work is to be carried out on the radar scanner unit on the mast?
A “Not to be used” sign on all radars and fuses for the complete radar systems to be removed.
A sign needs to be attached to all the radars warning the bridge officers of repairs and the fact the radars are “Not to be used”.
Only the electrical fuses forthe radar undergoing repairs needs to be removed, allowing the ship to retain a workable radar.
Only the electrical fuses for the scanner motor needs to be removed.
You are proceeding up a river, with berths on both banks. You see this flag hoist on a vessel moored on a berth ahead. What does it mean?
You should proceed at slow speed when passing me.
I am about to depart the berth.
My engine is disabled.
Caution! I have an anchor down.
What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?
Strong winds and heavy rain.
Light winds and fair weather, sometimes fog.
Strong winds but with very little rain.
Persistent rain and very humid weather.
What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?
Persistent rain and very humid weather.
Strong winds and heavy rain.
Light winds and fair weather, sometimes fog.
Strong winds but with very little rain.
What is correct UTC in this example? Approx. Pos: N49° 51′ W35° 23′, zone +2, Local Time 0900.
23 00.
07 00.
19 00.
11 00.
What are the limits of a passage or voyage plan?
From Full Away On Passage (FAOP) to End Of Passage (EOP).
From pilot to pilot.
It is dependant on the voyage and if there are any river or canal transits.
From berth to berth.
What is the direction of wind associated with an anticyclone (area of high pressure) in the Northern Hemisphere?
Clockwise around the high pressure.
Directly away from the centre of the anticyclone towards the nearest Low pressure.
Straight towards the centre of the anticyclone.
Anticlockwise around the high pressure.
Which type of vessel suffers from the greatest squat effects?
Vessel with a low Block Coefficient.
Vessel with a high Block Coefficient.
Vessel with a small length to beam ratio.
Vessel with a large length to beam ratio.
The bridge Officer of the Watch (OOW) is plotting the ship’s position in the chartroom, when the ship is in collision with a fishing vessel. Why would the OOW be held responsible for the collision?
Under the Rules a proper lookout should be maintained at all times and by all available means.
If the OOW is busy with the safe navigation of the ship he should have exhibited the “Not under Command” signals and made other ships keep clear.
If risk of Collision existed, the fishing boat should have contacted the larger ship over the VHF before the collision took place.
Under the Rules the fishing vessel should have kept clear of larger vessels and the OOW would not be responsible.
When should voyage planning be done?
During the pilotage when leaving the berth.
Prior to leaving the berth.
Before the vessel completes the previous passage.
Before the pilot is leaves the vessel at the departure port.
In the diagram, the amount of water under the keel is indicated by the letter “C”. Which bridge instrument would measure this value?
Echo Sounder.
Draught Indicator.
Arpa Radar.
ECDIS.
During an STS operation with one ship at anchor, should an anchor watch be maintained?
Anchor watch responsibility rests with the discharging vessel which would be the vessel which is anchored.
Anchor watch responsibility rests with the vessel which has its anchor down and the ship to ship connections is the responsibility of the other vessel.
Both ships have normal anchor watch responsibility in addition to watching ship to ship fendering, mooring etc.
Anchor watches are not kept as the duty officers will be on deck conducting the cargo operations.
What actions should the Officer of the Watch take when the ship’s steering gear fails?
Display the NUC signal and consider stopping the engines.
Request the engine room to check the steering gear.
All of the suggested answers.
Call the Master and advise him of the situation.
Two ships travelling in opposite directions are to pass each other in a narrow river, as illustrated. Explain what is likely to happen as they pass each other?
Due to interaction, the bows will attract each other as they approach, then they will repel each other alongside and as they pass clear, the sterns will be attracted.
Due to interaction, the bows will repel each other, and then when alongside each other the two ships will be sucked together and finally the sterns will be repelled as they start to pass clear.
As they approach, rudder should be applied quickly to avoid sheering into the path of each other. Then as they are alongside they will be attracted and finally repel each other as they pass clear.
There will be very little effect between the two ships as they pass.
Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?
Contingency arrangements in case of problems.
Expected prevailing wind and weather.
Courses to steer; distance off dangers; parallel index lines; expected currents; prevailing winds; distance between alteration points.
All of the suggested answers.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
CQ.
TT.
CA.
AS.
What are the main advantages to the Navstar, Glonas and Galileo satellite navigation systems?
If a vessel uses any one of them, there is no need to practice other forms of navigation.
These satellite systems give world-wide coverage 24 hours a day.
They are all made specifically for ships and marine operations.
Satellite navigation systems also give information about weather and wave conditions.
What can be used to reduce the effect of the state of sea-water?
Crude Oil.
Foam.
Vegetable/Fish Oil.
Fuel Oil.
What is the correct understanding of the term “Isobar”?
An “Isobar” is the line showing the direction of the predicted path of a hurricane.
An “Isobar” is a line joining places of equal temperature.
An “Isobar” is the line of the cold front in a frontal depression.
An “Isobar” is a line joining places of equal pressure.
What signal may be given by sound and by light to indicate that a vessel fails to understand the intentions or actions of another vessel, or is in doubt that sufficient action is being taken by the other to avoid collision?
One prolonged blast (flash), followed by five or more short and rapid blasts (flashes).
Five short and rapid blasts (flashes).
Five prolonged blasts (flashes).
Three short and rapid blasts (flashes).
If a DSC distress alert is received on board your ship, what is the first action that should be taken?
Immediately answer the distress message on the correct radio frequency.
Determine how close your vessel is to the distressed vessel.
Contact SAR Authorities via nearest coast Radio station.
Listen for a distress message on the appropriate radio frequency for five minutes.
You are proceeding along a coastal route when you hear this signal. The visibility is severely restricted. What does the signal mean?
There is a vessel at anchor in the vicinity. She is less than 100 metres in length. She is sounding an additional warning to approaching vessels that they are “running into danger”.
There is a vessel aground in the vicinity. She is more than 100 metres in length. She is sounding an additional warning to approaching vessels, directing them to “keep clear”.
There is a vessel aground in the vicinity. She is more than 100 metres in length. She is sounding an additional warning to approaching vessels that they are “running into danger”.
There is a vessel aground in the vicinity. She is less than 100 metres in length. She is sounding an additional warning to approaching vessels to “navigate with extreme caution”.
The ship is navigating in dense fog where the visibility is less than one mile. The Arpa radar is set on a range 12 miles on a course of 314° and own ship has a vector as shown. What is the vector mode selected on the Arpa?
Relative vectors, sea stabilised.
True vectors.
Relative vectors, ground stabilised.
Relative vectors.
The «Navigation (NA) Operational Level» subject covers both theoretical and practical knowledge regarding safety when working with electrical equipment. Mastery of this information is a key indicator of an employee's competence in their specific role on a vessel. As a 3rd officer responsible for navigation duties, your primary tasks include assisting senior officers in planning the ship’s voyage by calculating safe passage routes, preparing navigation charts, and monitoring weather conditions. You are also responsible for conducting regular safety checks on all life-saving equipment to ensure it is in good working order, as well as operating and maintaining navigational equipment like radar, GPS, and compasses to ensure they are functioning correctly.
- Version: 4.1, 5.0, 5.1, 6.0.0.
- Test type: STCW.
- Duty: 3rd Officer.
- Level: Operational.
- Theme: Navigation.
