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Questions and answers to Seagull CES test for Officers onboard about Navigation, Operational Level

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Welcome to the website where you can find answers for the CES test on the «Navigation (NA) Operational Level». This site will help you as a marine specialist improve your knowledge with the help of open information, where you can find questions as well as answers for them. CES based on practical information and marine specialists experience.

CES tests developed for evaluating seaman basic knowledge by Seagull Company (rebranded as «OTG»), is an evaluating online-tool, used for revealing any professional preparation needed in specific fields of knowledge, defined by STCW.

  • Version: 4.1, 5.0, 5.1, 6.0.0.
  • Test type: STCW.
  • Duty: 3rd Officer.
  • Level: Operational.
  • Theme: Navigation.

CES tests have proven themselves as good tools for the selection and recruitment process, as well as advancing the level of knowledge of the current officers and crew. Ocean Technologies Group use various subjects for question creation, which includes:

  • Crowd and Crisis Management;
  • Integrated Navigation System (INS);
  • Ballast water management;
  • Handling and Stowage;
  • Vessel operation management and safety;
  • Marine engineering;
  • Maintenance and repair, etc.

«Navigation (NA) Operational Level» subject includes theoretical and practical information about safety working with electrical equipment. Knowledge of this information directly shows employee’s competence who holds a relevant post on a vessel. As a 3rd officer on a vessel on navigation duty, some of your primary duties include – assisting the senior officers in planning the ship’s voyage, including calculating safe passage routes, preparing navigation charts, and monitoring weather conditions, conducting regular safety checks on all life-saving equipment and ensuring that it is in good working order, operating and maintaining navigational equipment such as radar, GPS, and compass, and ensuring that they are functioning properly and etc.

This page contains answers to Seagull CES (Crew Evaluation System) test about Navigation, Operational Level, and serve as a database of questions and answers, using which seafarer can prepare to exams for getting certificate of competence, or just to challenge yourself with knowledge in this theme.



CES – 3rd Officer, Operational, Navigation.pdf

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Amount of questions: 160.

Right answers marked with this sign .

Code: CWGL What do the shapes that this vessel is displaying tell us about her?

Shapes on the vessel

That she is not under command.
That she is constrained by her draught.
That she is engaged in towing.
That she is restricted in her ability to manoeuvre.
Code: GLIP Rule 12 of the International Collision Regulations prescribes the action to be taken by a sailing vessel when meeting another sailing vessel. This depends on the direction of the wind relative to each vessel. In the situation shown here, which sailing vessel (A or B) must keep out of the way of the other?

Situation with vessels

Sailing vessel A must keep out of the way of sailing vessel B.
Sailing vessel B must keep out of the way of sailing vessel A.
Both sailing vessels are required to take avoiding action.
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
Code: BFXK What are the required data inputs into most gyro compasses to reduce any possible compass error?
Latitude and Speed.
Deviation and Variation.
Maximum helm angle and rolling period.
All of the data in the suggested answers.
Code: HNXE 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.

Lights on the vessels

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.
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, more than 50 metres in length or less than 50 metres in length and showing a second masthead light, length of tow 200 metres or more, not under command. I will keep clear under rule 27.
I don’t know.
Code: WGNA A man is reported to have fallen overboard and the Officer of the Watch releases the lifebuoy and starts a man overboard manoeuvre, who are the first persons onboard he should inform?
Master and Engine Room.
Chief Officer and lifeboat party.
The Master only.
The crew quarters for extra lookouts.
Code: EAYE What are the main components causing the magnetic compass to require a regular evaluation and compass correction?
Permanent and induced magnetism in the ships structure.
The change in the position of the magnetic pole causing annual changes in the variation.
The continual changes of courses steered by the ship.
Deviation and Variation.
Code: FRYG 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?
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
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.
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.
Code: VYBS The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?
Sound the General Alarm and stop engines.
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.
Stop engines and check over the side for any signs of pollution.
Code: DRMV You are proceeding along a narrow channel and approaching a bend, on the inside shore of which is a large hill, which obsures your view further up channel. What sound signal will you make to indicate your presence to any vessel that is behind the obstructing hill?
One prolonged blast.
Two short blasts.
Two prolonged blasts.
One short blast.
Code: GBPL What is the correct understanding of the term “bank effect”? If a ship was approaching the bank at an angle, what would be the effect on the ship?
The vessel’s bow is pushed away from the bank.
The vessel’s bow is attracted by the bank.
The whole vessel would continue straight towards the bank and would require a large helm order to avoid going aground.
The vessel’s stern is pushed away from the bank.
Code: GKRE How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?
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.
Select Relative motion display and make Own Ship vector pass through the middle of the entrance to the 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.
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.
Code: AFQY What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?
Light winds and fair weather, sometimes fog.
Strong winds but with very little rain.
Persistent rain and very humid weather.
Strong winds and heavy rain.
Code: AXYU What is “AIR DRAUGHT”, in the figure?

Scheme of the vessel - air draught

Air draught is indicated by C, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by B, in the figure.
Code: TEXN You are approaching the port entrance. What do these lights mean?

Port entrance - lights

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.
Code: CLUY Is the location of the Compass Binnacle critical?
Yes, for the reasons stated in all of the suggested answers.
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.
Code: ENCD 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?

ARPA radar

True vectors.
Relative vectors.
Relative vectors, sea stabilised.
Relative vectors, ground stabilised.
Code: YTSF What is the advantages of a GPS satellite system compared to other navigational aids?
The GPS system gives information about position, speed and time continuously world wide.
The GPS system is based on hyperbola navigation.
The GPS system has a built-in group of six radio-beacons called a Decca chain.
The GPS system gives information about weather and wave conditions in the area.
Code: LIQG The ship is sailing in shallow water with reduced Under Keel Clearance. If the ship is steaming with the engines at full RPM, what would be the speed in comparison to the speed achieved in deep water?
Slower than deep water.
The same as deep water.
Faster than deep water.
It would be very difficult to maintain full deep sea RPM on the engines and therefore difficult to assess the speed.
Code: ABFC 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 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.
That there is another vessel in the vicinity and that she has just altered course to port.
Code: TYNC This vessel is sighted ahead and slightly to port. What is her situation? What will you do?

Special lights on the ship

This vessel is aground. I will navigate with extreme caution given the nature of the hazard.
This is a vessel engaged in fishing vessel, with her nets fast on a obstruction. I will keep out of the way by rule 18 of the International Collision Regulations.
This is a vessel aground. She appears to have been headed to starboard of my track and I will therefore alter course to port, passing under her stern.
This is a vessel not under command at anchor.
Code: GQJB The lights here show those that must be exhibited by a vessel engaged in towing, as per rule 24 of the International Collision Regulations. But how long is the tow behind this vessel?

Vessel engaged in towing

It exceeds 200 metres.
At least 100 metres.
It is more than 50 metres but less than 200 metres.
It is less than 200 metres.
Code: VQRP A ship is equipped with a right-handed fixed pitch propeller, which when going from Full Ahead to Full Astern will make the ship sheer to starboard. Can anything be done to reduce this change in heading?
The rudder can be put to Hard to Port to reduce the water from to the right side of the propeller.
The rudder can be put from side to side in a “Rudder Cycling” movement.
The rudder should be kept amidships when going astern and there is little that can be done to reduce the swing to starboard.
The rudder should be put Hard to Port to reduce the water flow to the left side of the propeller.
Code: AWCE What does this signal hoist mean?

Special flags on the vessel

I require immediate assistance.
Do you require assistance?
Stand by to assist me.
I require medical assistance.
Code: NVTS When plotting a position, where should the Officer of the Watch select as the ships position, when three gyro compass bearings intercept as a triangle (Cocked Hat) and not as a single point?
At the point nearest to the danger, if any.
At the point nearest the course line drawn on the chart.
At the point furthest away from any danger.
At the centre of the triangle.
Code: SBVS 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?

Ships travelling in the channel

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.
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.
There will be very little effect between the two ships as they pass.
Code: SBGQ What are the limits of a passage or voyage plan?
From berth to berth.
From Full Away On Passage (FAOP) to End Of Passage (EOP).
It is dependant on the voyage and if there are any river or canal transits.
From pilot to pilot.
Code: WQHI You are in an area of restricted visibility, close to a port. You hear this signal. What vessel does it come from and what additional information does the signal provide?
A vessel at anchor, more than 100 metres in length. She is sounding the additional signal to give warning of her position.
A vessel at anchor, less than 100 metres in length. She is sounding the additional signal top give warning of her position.
A vessel at anchor, more than 100 metres in length. The additional signal indicates that her cable extends at least 25 metres from her bow.
A vessel aground, more than 100 metres in length. The additional signal indicates which side the clear water lies on.
Code: SPYJ Who is ultimately responsible for the voyage plan?
The Master.
The Officer of the Watch (OOW) on duty.
The Second Officer as the official Navigation officer.
The ship owner will provide overall parameters within which the ship must follow.
Code: QPIQ Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
The Oxford Concise Dictionary.
The (ISC) Bridge Procedures Guide.
Standard Marine Navigational Vocabulary.
Code: FDJI What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
CQ.
AS.
TT.
CA.
Code: KQAX What is the situation of this vessel?

Red lights

This vessel is not under command, but is making way through the water.
This vessel is not under command and stopped in the water.
This is a vessel constrained by her draft.
This vessel is aground.
Code: TEIE When navigating along a coastline what should be considered the most accurate method of navigating?
Use of Differential GPS.
Passing close to navigational buoys.
Bearings of navigational shore marks such as lighthouses.
Use of radar ranges and bearings.
Code: NKVO How can a new officer, just boarding a ship, ensure that he knows the location and operation of all navigational and safety equipment and take account of the operating limitations of such equipment?
By asking other officers and practicing with the use of the equipment.
The certificate of competency will ensure the officer has suitable competence in operating the bridge equipment.
By following the standard company Induction procedures for a bridge watchkeeping officer.
By using the equipment on regular watchkeeping duties.
Code: AXYU What is “AIR DRAUGHT”, in the figure?

Scheme of the vessel - air draught

Air draught is indicated by C, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by B, in the figure.
Code: RTTQ What action should the Officer of the Watch (OOW) take if he is forced to make a major deviation from the voyage plan?
Inform the Master.
Make an appropriate entry in the Log Book.
There is no special action necessary.
Check that the deviation will not lead into danger.
Code: KDOB The ship’s engine is going astern and the ship is piking up sternway. The rudder is amidships and the ship has a single, right-handed, fixed pitch propeller. What would be expected to happen?
The ship will probably start to change heading to starboard and stern speed will increase.
The ship will move astern at an increasing speed and the stern start to swing off to starboard.
The ship will probably go straight astern without a change in heading and the stern speed will increase.
The ship will probably start to change heading to port and stern speed will increase.
Code: MVVV 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?

Ship going astern

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.
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.
Code: JSNV 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 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.
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.
Code: WWYS 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?
Uncovered manila rope.
Polyester rope.
Polypropylene rope.
Nylon rope.
Code: PVJO 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?
Abnormal ranges of VHF RT and Second Trace Returns on the radar.
The GPS may give errors of position because of interference of incoming signals from the satellites.
The bearings obtained from the Directional Finder (DF) will not be as accurate as normal.
The radar will be show abnormal sea clutter as the pulse is trapped by the inversion.
Code: UAAG In the Beaufort Scale of Wind Force, what is the Beaufort number associated with the wind force known as a “Gale”? This should not be confused with a “Near Gale” or “Strong Gale”?
Eight (8).
Nine (9).
Seven (7).
Ten (10).
Code: NGQJ Which of the following hull shapes would normally provide a directionally stable ship?

Vessel shapes

A long ship with a narrow beam.
A short ship with a wide beam.
A short ship with a narrow beam.
A long ship with a wide beam.
Code: RNTY The ship is to berth alongside a quay in calm conditions of no wind or current. The ship has a single fixed pitch right handed propeller. Which angle of approach would be considered the most favourable?

Vessel - berthing

No. 2.
No. 1.
No. 3.
The decision should be left to the pilot who is in charge of the manoeuvre.
Code: ODBF What is the purpose of a fire wire?
A wire for pulling burning ships off the pier.
A wire for pulling fire-hoses up to the top bridge.
A wire for handling fire buckets.
A wire for securing the Fire Tug alongside a burning ship.
Code: BFHQ How will the ship behave if it experiences a complete loss of power (blackout) in the situation illustrated?

Ship in blackout

The vessel will gradually swing to port and the speed will slowly reduce.
The vessel will continue on course and the speed will slowly reduce.
The vessel will gradually swing to starboard and the speed will slowly reduce.
The wind will push the vessel sideways, but the heading will not change.
Code: CAHU You are in an area of restricted visibility. You hear this sound signal. What does it mean?
That there is a vessel in distress nearby.
That there is a vessel at anchor in the vicinity.
That there is a vessel aground in the vicinity.
That there is a vessel engaged in underwater operations in the vicinity. She has divers down.
Code: HAER The position of the ship is found by taking a series of bearings using a magnetic compass. How should an error of 5° WEST be applied to the compass bearings?
Subtract 5° to the bearings.
The same error applies to all bearings and therefore it can be ignored.
Add the 5° to the bearings.
The error should be “High” or “Low” and therefore more information is required.
Code: UFAB When fastening synthetic fibre ropes such as polypropylene on bitts, for safety and better rope control it is recommended to:

Typical bitts

Make two round turns fast on the leading bitt and then figure of eight on both bitts, fig. 4.
Make it fast with round turns on the leading bitt alone, fig. 1.
Make it fast on the second bitt alone, fig. 2.
Make it fast in a figure of eight fashion, fig. 3.
Code: COHV The tug has been released and is all clear. As officer in charge of that operation, should this be reported and to whom?
Reported all clear to the Bridge.
Report all clear to the tug.
No need for reporting as the order was given from the bridge.
Report all clear to the Engine Room.
Code: FSOS 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 call the Master.
Sound the General Alarm and plot the ships position.
Stop engines and immediately request “Full Astern”.
Stop engines and tell the engine room to switch over to high suctions.
Code: SGBA The IMO Standard Marine Communication Phrases are recommended to be used when the ship’s Officer is verbally talking to whom?
In circumstances described in all of the answers provided.
When talking on the VHF between ships.
When giving orders on board with other seafarers.
When talking between ship and shore personnel.
Code: UKAP What is the purpose of a sea anchor?
To keep the lifeboat steady against the sea/wind.
To keep the lifeboat in a position close to the vessel.
To adjust the drifting speed of the lifeboat.
To give a better signals to any aircraft searching for survivors.
Code: DCSL What is the correct understanding of the term “a ship with good Directional Stability”?
A ship which when the rudder is left amidships, it will continue on approximately a straight course.
A ship which when a rudder angle is applied and the ship starts to swing, will continue to swing even after the rudder is returned to amidships.
A ship where the amount of positive transverse stability (GM) will vary with the direction of the ship’s head.
A ship which will maintain its course unless large rudder angles are applied.
Code: SDOU Two mooring lines are pretensioned equally and have the same length, same breaking strength and same directional load. However, one is made of wire (with a full load elastic elongation of about 1,5 % of its length) and the other made of nylon (with a full load elongation of about 30 % of its length). If a gust of wind increases the load on the lines, how will it be shared?

Vessel in port

Wire takes 95 % of the extra load. Rope takes 5 % of the extra load..
Wire takes 55 % of the extra load. Rope takes 45 % of the extra load.
Wire takes 45 % of the extra load. Rope takes 55 % of the extra load.
The wire and rope will share the load equally.
Code: VTBP Can the OOW be the sole lookout?
During daylight when visibility and traffic allows.
Never should the Officer of the Watch be the only lookout.
When the visibility is good and the ship is in the middle of the ocean where there is very little shipping.
Only if the ARPA radar is set onto Auto Acquisition with an audio alarm sounding when a ship is detected.
Code: YQXU Which part of the magnetic compass error changes with a change in the course steered?
Deviation.
Variation.
Induced magnetism.
All of the suggested answers.
Code: OTYF A ship is being overtaken by another ship while proceeding along a river. What should be the required procedure?

Channel traffic

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 should request permission to overtake from the Port Control VTS.
The overtaking vessel can overtake but must allow sufficient space to reduce the interaction between the two vessels.
There should be no overtaking in these confined waters.
Code: HNXE 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 not to exist and I will maintain my course and speed. I will continue to monitor the situation.
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.
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 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.
Code: VFJG What does this flag mean?

Flag - diver down

I have a diver down; keep well clear at slow speed.
My vessel is stopped and making no way through the water.
Yes (affirmative).
I wish to communicate with you.
Code: QLFS What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
Draught of the ship.
Allowance for the ships speed.
Shallow water effects.
The distance between the pulse Transmitter and Receiver.
Code: UAAG What is understood by the term “Dew point” of the air?
The temperature at which condensation in the air forms into water droplets.
The temperature of the water vapour in a cloud.
The “Dew point” is the point at the centre of an Anticyclone.
All of the suggested answers.
Code: GJLE What special equipment can often provide assistance in locating a survival craft or man overboard and in the water?
A SART.
A sectored search pattern.
A RACON.
AIS.
Code: TDJH When should voyage planning be done?
Prior to leaving the berth.
During the pilotage when leaving the berth.
Before the pilot is leaves the vessel at the departure port.
Before the vessel completes the previous passage.
Code: FAVA 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?

Drifting ship

All of the possible answers.
Display the “Not under Command” signal and switch off the normal steaming lights.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Keep a good lookout for other ships.
Code: RFJD What would be considered the most favourable heading of a ship when launching a lifeboat?
The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.
The ship should steer about 100° of the prevailing weather and sea with the boat to be launched on the leeside.
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 with the prevailing weather and sea on the beam and the boat to be launch on the leeside.
Code: PGKC 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?

Restricted channel

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.
Keep as far as possible on the starboard side of the channel and maintain speed to retain effective steerage.
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.
Code: XAPT Which is the “CENTRE LINE”, in the figure?

Typical scheme of the vessel

The Fore and aft Centreline is indicated by A, in the figure.
The Fore and aft Centreline is indicated by D, in the figure.
The Fore and aft Centreline is indicated by C, in the figure.
The Fore and aft Centreline is indicated by B, in the figure.
Code: ICMT What is the colour and characteristic of a “towing light”, as defined in the International Regulations for Preventing Collisions at Sea?
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.
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.
Code: PQFE 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”?

Methods of mooring

The line should be turned up on the bitts, fig. 1.
The eye of the lines should be put on the bitts, fig. 2.
The line should be held on a stopper ready for immediate release, fig. 4.
The line should be kept on the warping drum of a deck winch, fig. 3.
Code: ACGC What is important to check when transferring a position from the GPS output to a paper chart?
Any necessary corrections are applied to convert between the GPS datum and the chart datum.
Ensure that the chart has been corrected up to date.
Ensure that the GPS is setup on the same datum as the chart.
It is important to ensure that the GPS is setup on 2 dimensional and not 3 dimensional position fixes.
Code: WPSE 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?

Vessel picture

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.
The positive pressure field at the ships bow may repel the tug and make the connection very difficult to establish.
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.
All of the alternative answers.
Code: PETM Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
The collision regulations are based on ship courses through the water.
True motion does not provide the collision risk of other ships.
The true vector can never give an indication of collision risk with another ship.
The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.
Code: VNSG Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?
All of the suggested answers.
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.
Code: FRGY If the radar is set onto the Relative Motion Display, what would an echo of a target with no trail indicate? Note this the trail of the echo and not a vector.
The target is on the same course and speed as own ship.
The target is on a constant bearing and getting closer to own ship.
The target is stopped and making no way through the water.
The target is on a collision course with own ship.
Code: ETES According to rule 13 of the International Regulations for Preventing Collisions at Sea, what is the definition of “an overtaking vessel”?
When coming up with another vessel from a direction more than 22,5° abaft her beam.
When the vessel is detected as a radar target or sighted visually in a position directly astern.
When coming up with another vessel from any direction abaft her beam.
When coming up with another vessel from a direction more than 45° abaft her beam.
Code: ROVT Where can a ship expect an act of piracy to take place?
All over the world.
In Far East waters.
In American waters.
At the south end of the Red Sea.
Code: QBIM What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put “Full Astern”?
Varies, but can be determined from trial data.
15 ship lengths.
8 nautical miles.
4 nautical miles.
Code: CRBD If a distress signal is received on board your ship, what should be the first action that should be taken?
Attempt to establish contact with the distressed vessel.
Contact SAR Authorities via nearest coastal Radio station.
Determine how close your vessel is to the distressed vessel.
Determine if anyone else has heard the distress signal and if your vessel is near the distress.
Code: JLRE 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 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 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 less than 100 metres in length. She is sounding an additional warning to approaching vessels to “navigate with extreme caution”.
There is a vessel at anchor in the vicinity. She is more than 100 metres in length. She is sounding an additional warning signal to approaching vessels, directing them to “keep clear”.
Code: SNQJ What is the correct understanding of the term “Isobar”?
An “Isobar” is a line joining places of equal pressure.
An “Isobar” is the line of the cold front in a frontal depression.
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.
Code: NCMO You are on a power-driven vessel underway in open water. This vessel is sighted on the port bow on a steady bearing. What kind of vessel is it and what will your action be?

Sailing vessel

This is a sailing vessel underway, seen head-on. It is my responsibility to keep clear under rule 18 and I will take appropriate avoiding action.
This is a vessel engaged in fishing. It is my responsibility to keep clear under rule 18 and I will alter course to starboard, sounding one short blast.
This is a sailing vessel underway. I am the stand-on vessel and will maintain my course and speed under rule 17.
This is a sailing vessel not making way through the water. There is no risk of collision and I will maintain my course and speed.
Code: INOL What are the two parts of the magnetic compass error?
Variation and Deviation.
West and East errors.
The latitude and longitude.
Permanent and induced magnetism.
Code: FYAL If a ship requires 2 nautical miles to stop in the water from a “crash stop” when proceeding at full ahead in deep water. What will the stopping distance be in shallow water?

Scheme - crash stop

A greater distance.
A shorter distance.
About 1,5 nautical miles.
Similar distance to deep water.
Code: JDPH 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.
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.
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”.
Code: BCXU Which of the four calculations illustrated is the correct one to determine the latitude of the observer when the sun is on the meridian?

Calculations to determine latitude

Calculation 3 is correct.
Calculation 4 is correct.
Calculation 2 is correct.
Calculation 1 is correct.
Code: WBOG 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, engines on standby, call the Master and lookout, if not already on duty.
Commence sounding the fog signal and reduce speed to Slow Ahead.
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 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.
Code: XPMH What, by definition in the International Collision Regulations, is a “vessel restricted in her ability to manoeuvre”?
A vessel which from the nature of her work is restricted in her ability to manoeuvre as required by the Rules and is therefore unable to keep out of the way of another vessel.
A vessel engaged in underwater work, such as the laying, picking up or servicing of a pipeline, or which is in support of diving operations, performing dredging and mine-clearance or is deploying or recovering a pilot.
A vessel which because of her draught in relation to the available depth of navigable water is restricted in her ability to deviate from her course and keep out of the way of another vessel.
A vessel which through some exceptional circumstance is unable to manoeuvre as required by the Rules and is therefore unable to keep out of the way of another vessel.
Code: DXHH You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?
It comes from a vessel engaged in pilotage duties and it is making way through the water.
It comes from a vessel engaged in pilotage duties at anchor, over 100 metres in length.
It comes from a vessel at anchor, less than 100 metres in length.
It comes from a vessel restricted in her ability to manoeuvre.
Code: UBYW Who is responsible for the number and the position of any tugs to be used during a mooring operation?
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.
The Pilot is fully responsible for the number and use of tugs within the port area.
Code: SBVS 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?

Ships travelling in the channel

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.
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.
There will be very little effect between the two ships as they pass.
Code: HEVD Which of the four figures illustrated shows the correct position line for the following situation: Latitude 50° 00′ N, Longitude 30° 00′ W, Time 1200 GMT. Course steered: 090° True, Speed: 12 knots, bearing of the sun: 200°, Intercept correction: 00° 02′ Towards (observed altitude – computed altitude).

Calculated ship position

Figure 1 is correct.
Figure 2 is correct.
Figure 3 is correct.
Figure 4 is correct.
Code: JUIS The maximum rudder angle on your ship is 35°. Do you think this is the angle that the rudder is most effective?
No, the most effective rudder angle is about 25 to 30°, this is because the rudder is stalling at 35° angle.
Yes, the rudder is most effective at max angle.
No, the rudder is most effective at angles between 10 and 20°.
No, the rudder is most effective at small rudder angles.
Code: RCFG What methods could be introduced into a passage plan for continuous monitoring of the ships position when navigating along a coastline?
Parallel Index lines.
The radar ranges of the coastline at all course alteration points.
Conspicuous headlands and navigational marks for taking positions.
All of the suggested answers.
Code: YUVN What are the additional duties required by the Officer of the Watch when navigating in fog?
Sound fog signal, effective radar watch reporting ship movements to Master and keep a good lookout for ships and fog signals.
When navigating in fog the Master will take over the watch and the Officer of the Watch should follow all of his instructions.
Sound fog signal, plot positions and keep a good lookout.
All of the suggested answers.
Code: YTTD In the figure, which letter gives the correct understanding of the term “LENGTH OVERALL”?

Scheme - ship length

Length Overall is indicated by B, in the figure.
Length Overall is indicated by D, in the figure.
Length Overall is indicated by A, in the figure.
Length Overall is indicated by C, in the figure.
Code: IPJW In an extreme case, in addition to having your winch brakes as tight as can be, you can increase the brake holding capacity of the winch drum by putting it in gear and setting the power to the “heave” position. However this may cause:
All the listed alternatives.
The increased braking power of the winch to exceed the breaking strength of the wire and rope paid out from it which might cause the wire or rope to part.
Strain on the fairleads and rollers in use in excess of their Safe Working Load.
Damage to the winch by distorting the shaft.
Code: LGSE How can the effects of Squat be minimized, when a ship is proceeding in shallow water?
Maintain a slow speed just sufficient to maintain steerage.
Maintain a speed of about 6 knots and use minimal rudder when manoeuvring.
Enter the shallow water with a stern trim and proceed at a moderate speed.
Decrease the speed and keep this ship to the centre of the channel where the water is probably deepest.
Code: NBTI A ship normally turns (swings) around a point which is not the centre of gravity. What is this point normally called?
Pivot Point.
Centre of Floatation.
Centre of Turn.
Centre of Buoyancy.
Code: UFAB When fastening synthetic fibre ropes such as polypropylene on bitts, for safety and better rope control it is recommended to:

Typical bitts

Make two round turns fast on the leading bitt and then figure of eight on both bitts, fig. 4.
Make it fast on the second bitt alone, fig. 2.
Make it fast with round turns on the leading bitt alone, fig. 1.
Make it fast in a figure of eight fashion, fig. 3.
Code: GKPK The vessel is steaming off the coast when the engine room informs the bridge it must stop engines immediately. Shortly afterwards they informed the bridge they would need a least three hours to fix it. Which of the following actions would be the most suitable taken by the bridge?
Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after 3 hours.
Display the NUC signal, maintain the watch and ask the Engine room to be a quick as possible.
Display the NUC signal, maintain the watch and wait for further developments.
Display the NUC signal and keep a good lookout.
Code: JGAE Visual signals are used by aircraft in search and rescue operations to direct ships towards a casualty. The signals shown here are part of a sequence. What does it indicate?
The assistance of your vessel is no longer required.
The aircraft is directing a vessel towards the casualty.
The aircraft is short on fuel and is returning to base.
The casualty is sighted and will require medical assistance.
Code: LRNP 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:
9 mtrs.
15 mtrs.
6 mtrs.
12 mtrs.
Code: BFHQ How will the ship behave if it experiences a complete loss of power (black out) in the situation illustrated?

Ship in situation with blackout

The vessel will gradually swing to port and the speed will slowly reduce.
The vessel will gradually swing to starboard and the speed will slowly reduce.
The wind will push the vessel sideways, but the heading will not change.
The vessel will continue on course and the speed will slowly reduce.
Code: CLUY Is the location of the Compass Binnacle critical?
Yes, for the reasons stated in all of the suggested answers.
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.
Code: QLFS What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
Draught of the ship.
Allowance for the ships speed.
Shallow water effects.
The distance between the pulse Transmitter and Receiver.
Code: HNWY A balanced rudder has some of the rudder area forward of the rudder axis. About how much area should this be to call it a balanced rudder?
It should be about 20 %.
It should be about 5 %.
It should be about 55 %.
It should be about 50 %.
Code: YXYL Where would the “pivot point” be considered to be located when the ship is proceeding at full speed ahead and there is no wind or current?
At about 1/6 of the ship’s length from the bow.
At about 1/6 of the ship’s length from the stern.
At amidships.
At a position near the stern of the ship.
Code: RXRE 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 half astern on the engines as this will increase the rate of turn.
Give full astern on the engines until ship has stopped and then full ahead on the engines with rudder hard over.
Code: WAVF You are on a tug and are towing an unmanned barge. You are restricted in your ability to manoeuvre. The total length of the tow is 219 metres. What daylight signals are required by the International Regulations for Preventing Collisions at Sea?
A diamond shape, where it can best be seen shall be displayed on the tug and the tow. Three shapes shall also be displayed in a vertical line, the upper and lower being balls and the middle one a diamond. Diamond shape.
Three shapes shall be displayed on the tug, where they can best be seen, in a vertical line, the upper and lower being balls and the middle one a cylinder. The signal flag “T” shall also be flown on the tug. A diamond shall be displayed aft on the tow.
Three shapes shall be displayed forward on the tug, in a vertical line, the upper and lower being balls and the middle one a diamond.
A diamond shape, where it can best be seen, on the tug only. Three shapes shall also be displayed, being three balls in a vertical line.
Code: AFQY What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?
Light winds and fair weather, sometimes fog.
Persistent rain and very humid weather.
Strong winds but with very little rain.
Strong winds and heavy rain.
Code: FQLG Which of the following figures drawn on the plane of the Meridian is correct for an observer in position Latitude 30° 00′ North; Longitude 15° 00′ West, when observing the sun on the meridian, if the sun’s Declination is 15° 00′ South?

Figures - meridian

Figure 4 is correct.
Figure 3 is correct.
Figure 2 is correct.
Figure 1 is correct.
Code: GFRW What possible reason could there be for the identification mark associated with a Racon not being visible on the radar screen?
All of the suggested answers.
The Racon may not be transmitting a pulse.
The transmitted radar frequency may not trigger the Racon transmitter.
The radar may be suppressing the mark with application of the Interference Rejection control.
Code: FRYG 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?
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
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.
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.
Code: QPIQ Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
The Oxford Concise Dictionary.
The (ISC) Bridge Procedures Guide.
Standard Marine Navigational Vocabulary.
Code: TMQK What is the correct understanding of the term “Block Coefficient” as applied to a ship?
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.
The restriction of a valve in a pipe to the flow of fluid through that pipe.
The coefficient of a Block and Tackle.
Code: JAMS What is the depth of an iceberg below the surface of the sea?
The draught of an iceberg varies with the type of berg and its age.
The draught of an iceberg is normally about 3/4 of its total depth.
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.
Code: GHYX When should gangway nets be rigged?
Whenever the gangway is rigged.
Between sunset and sunrise.
Whenever the gangway is regarded as unsafe.
When it is deemed necessary by the Master of the Chief Officer.
Code: OXAN What sound signal shall be used on ship’s whistle when there is a man overboard?
3 long blasts repeatedly.
6 long blasts repeatedly.
5 long blasts repeatedly.
4 long blasts repeatedly.
Code: TCQX When a ship is lying at anchor in a tidal area using both forward anchors, to what particular aspect should the officer of the watch be paying special attention?
When the ship swings to the tide the direction of swing should be controlled to avoid the anchor cables becoming wrapped round each other.
The ship will become controlled by the tide and the wind will not be allowed to have any effect on the direction the ship lies at anchor.
The two anchors will restrict the ships swing with the tide and the ship may not lie to the prevailing current and wind.
The tension on both cables should be similar, to avoid one dragging and all the weight of the ship remaining on the other anchor only.
Code: NDCQ A ship is navigating in the Caribbean in August when it receives the warning of a Hurricane. To determine the centre of the storm the Master uses “Buys Ballot’s Law” and faces the wind. On what side of the Master would the low pressure area be located?
On the right side.
On the left side.
This is not a suitable method to use with a Hurricane.
Straight ahead.
Code: HWCB What is the probable cause of an error in position of the ship obtained from the GPS system?
Incorrect height of the antenna.
Abnormal sun spot activity causing unusual radiation effects.
A three dimensional instead of a two dimensional position output.
All of the suggested answers.
Code: PUYV What actions should the Officer of the Watch take when the ship’s steering gear fails?
All of the suggested answers.
Request the engine room to check the steering gear.
Call the Master and advise him of the situation.
Display the NUC signal and consider stopping the engines.
Code: BYCT Where can the size of the Magnetic Compass Error be found?
By taking a transit bearing of two fixed geographical positions and comparing it with the bearing of the same points on the chart.
On the chart in the centre of the compass rose or by reference to the Variation chart, taking into account the annual changes.
By taking the error from the Deviation Table on the bridge.
By reference to the last entry in the Compass Error Log Book.
Code: AFPT 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 operating astern propulsion.
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.
Code: IVIF Which of the following answers correctly specify the following most common rudders? a) UNBALANCED, b) BALANCED, c) SEMI-BALANCED and d) UNDERHUNG BALANCED. i. e. The number in the picture is related to the letter adjacent to the name of the rudder.

Types of rudders

1 = a, 2 = b, 3 = c and 4 = d.
1 = d, 2 = a, 3 = b and 4 = c.
1 = b, 2 = c, 3 = d and 4 = a.
1 = c, 2 = d, 3 = a and 4 = b.
Code: GXYD What is happening here?

Lights on the vessels

These are two vessels engaged in fishing (pair trawling), showing the additional volutary signals for hauling nets.
These are two vessels engaged in fishing (pair trawling), showing the additional voluntary signals for shooting nets.
This is a vessel engaged in towing a disabled tow, restricted in its ability to manoeuvre, with a searchlight used to highlight the location of the tow.
These are two vessels engaged in fishing, using purse-seine gear. The searchlights are simply working lights.
Code: SLCC The ship’s rudder is full over when the ship’s engines are full ahead. Will the turning effect (lift force) of the rudder be changed when the engine is stopped?
Yes, the lift force will be dramatically reduced when the engines are stopped.
No, the turning force applied by the rudder will be maintained within about 90 % of the lift force when going full ahead.
No, the lift force is unaffected by the speed of the propeller.
Yes, the lift or turning force will be reduced to about 50 % of the original lift force when the engines are stopped.
Code: VKUF What letter is represented by this flag and what is it’s meaning when displayed by a vessel in port?

Flag on the vessel

P – All persons should report on board as the vessel is about to proceed to sea.
P – I require a pilot.
W – All persons should report onboard as the vessel is about to proceed to sea.
S – I am operating astern propulsion.
Code: LDKV What type of vessel is this and from what direction are you seeing it?

Lights on the fishing vessel

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. I am looking at her port side.
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 red light. I am seeing her from astern.
This is a vessel engaged in pilotage operations, deploying or recovering a pilot. I am looking at her port side.
This is a vessel engaged in pilotage duties at anchor. I am looking at her port side.
Code: MMMU If your vessel is fitted with wires on self-stowing “split drum” winches, the advantage of having these split drum winches is:
All the listed alternatives.
Increased brake holding capacity due to the ability to keep the paid out wire in a single layer on the drum.
Less chance of the wire being jammed in the reel.
No crushing of the wire.
Code: BVQF You are proceeding along a narrow channel in front of another vessel, both heading for port. You hear this signal from the vessel behind you. What does it mean?
I intend to overtake you on your port side.
I am operating astern propulsion.
I am faster than you. Get out of the way.
I intend to overtake you on your starboard side.
Code: EMMF The ship has a right-handed propeller and is swinging to starboard when the engines are slow ahead and the rudder is to starboard. The engines are stopped and the rate of swing rapidly slows down. How could the swing to starboard be maintained without the ship making much headway.
Astern on the engines will allow Transverse Thrust to continue the swing.
By applying the rudder hard over to starboard and going ahead on the engines.
The only effective method is by using the bow thruster to push the bow to starboard.
Transverse Thrust will reduce the swing and therefore a kick ahead is necessary with full starboard helm applied.
Code: HGON The following vessels are all required to make the same sound signal when in or near an area of restricted visibility: a vessel not under command; a vessel restricted in her ability to manoeuvre; a vessel constrained by her draught/a sailing vessel; a vessel engaged in fishing; a vessel engaged in towing or pushing another vessel. What is that signal?
One prolonged blast, followed by two short blasts, at intervals of not more than 2 minutes.
One prolonged blast, followed by two short blasts, at intervals of not more than 1 minute.
One prolonged blast at intervals at not more than 2 minutes.
Two prolonged blasts, followed by one short blast, at intervals of not more than 2 minutes.
Code: LJLY What would be the effects of a ship passing into shallow water?
The ship is less responsive to both rudder and propeller.
There is no noticeable difference in performance of the ship.
The speed is not affected, but more rudder is required to steer the ship.
The vessel has a tendency to swing to port with a single fixed-pitch right-hand turning propeller.
Code: FAVA 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.
Display the “Not under Command” signal and switch off the normal steaming lights.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Keep a good lookout for other ships.
Code: PORQ What is the direction of wind associated with an anticyclone (area of high pressure) in the Northern Hemisphere?
Clockwise around the high pressure.
Straight towards the centre of the anticyclone.
Anticlockwise around the high pressure.
Directly away from the centre of the anticyclone towards the nearest Low pressure.
Code: PETM Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
The collision regulations are based on ship courses through the water.
True motion does not provide the collision risk of other ships.
The true vector can never give an indication of collision risk with another ship.
The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.
Code: OAJW What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?
The heeling error magnets are upside down and/or not in the correct position.
The error due to deviation is large for that ships heading.
The Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.
The induced magnetism from the earth’s magnetic field is very strong in that area.
Code: GQJB The lights here show those that must be exhibited by a vessel engaged in towing, as per rule 24 of the International Collision Regulations. But how long is the tow behind this vessel?
It exceeds 200 metres.
It is more than 50 metres but less than 200 metres.
It is less than 200 metres.
At least 100 metres.
Code: MCIV The Second Officer, when on watch on the bridge, is often referred to as the OOW. What does OOW actually stand for?
Officer of the Watch.
On official watch.
Operator of the watch.
On official watchkeeping.
Code: YYXR Which of the following answers most suitably cover the standard duties of the bridge Officer of the Watch when the ship is at anchorage?
Display anchor signal, check the ships position and keep a good lookout.
Display the anchor signal, patrol the ship frequency and check the anchor chain for dragging.
Display anchor signal and keep a good lookout of other ships in the area.
Display the anchor signal and ensure the ship swings the same way at each change of tide.
Code: EERA If whistles are fitted on a vessel at a distance apart of more than 100 metres, will manoeuvring and warning signals, as defined by rule 34 of the International regulations for Preventing Collisions at Sea, be given on one or both whistles?
They shall be given on one whistle only.
They shall be given on both whistles simultaneously.
They shall first be given on the forward whistle, followed by the after whistle, with a 5 second interval in between.
Manoeuvring signals will be given only on the forward whistle; warning signals will be given on both whistles simultaneously.
Code: JWPF You are on a sailing vessel, underway in open water. This vessel is sighted on the starboard bow, on a steady bearing and the distance is closing. By the International Regulations for the Preventing Collisions at Sea, what action will you follow?
By Rule 18, a power-driven vessel underway shall keep out of the way of a sailing vessel. I will maintain my course and speed, but will continue to monitor situation to ensure the other vessel takes avoiding action.
Risk of collision is deemed to exist and, as the other vessel is on a steady bearing on my starboard side, I will maintain my course and speed.
This vessel is clearly a power-driven vessel and I anticipate that the bearing will therefore close and she will pass ahead at a safe distance.
Risk of collision is deemed to exist and, as the other vessel is on a steady bearing on my starboard side, I am required to keep out of the way. I will make a broad alteration of course to starboard.
Code: GKRE How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?
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.
Select Relative motion display and make Own Ship vector pass through the middle of the entrance to the 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.
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.
Code: AFPT 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 operating astern propulsion.
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.
Code: ENYM When using the echo sounder in a river the soundings indicated may be incorrect, what would be the most probable cause of the error?
The density of the water.
Shallow water effects.
There should be no error with a properly working echo sounder.
The strength of the tide and current in the river.
Code: CTLR 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?
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.
Make a complete turn while reducing the engine power.
Make a zig zag manoeuvre while reducing the engine power.
Code: TDDV The gyro compass can suffer from a compass error and may need to be allowed for, when steering a course in a dangerous navigational area. What is the probable cause of the error?
An uncorrected course and speed error.
Compass Deviation.
Fluctuations in the electrical supply to the compass.
Variation.
Code: XWMR When navigating using the GPS, how does the GPS display indicate when the accuracy of the displayed position is reduced?
A large HDOP value is displayed on the screen.
The GPS display is always very accurate and does not give any indication of lack of accuracy.
A large “Correction Factor” number is displayed on the screen.
The GPS display flashes and sounds an alarm.
Code: PUPO What is correct UTC in this example? Approx. Pos: N49° 51′ W35° 23′, zone +2, Local Time 0900.
11 00.
19 00.
23 00.
07 00.
Code: DTHW 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?
The ranges of three distinctive shore objects on the radar.
Bearing using the Radio Direction Finding of three radio beacons.
Compass bearings of three shore objects.
Bearing and distance from a navigational Buoy.
Code: RFJD What would be considered the most favourable heading of a ship when launching a lifeboat?
The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.
The ship should steer about 100° of the prevailing weather and sea with the boat to be launched on the leeside.
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 with the prevailing weather and sea on the beam and the boat to be launch on the leeside.
Code: BLOW What is the description for a sidelight, as shown in rule 21 of the International Regulations for Preventing Collisions at Sea?
A green light on the starboard side and red light on the port side, showing an unbroken light over an arc of 112,5°, from right ahead to 22,5° abaft the beam on the respective side.
A red light or a green light, with a minimum range, in a vessel of 50 metres or more, of 3 miles. In a vessel of 10 metres.
A red, green or yellow lantern, showing an unbroken light over an arc of 112,5°.
A green light on the starboard side and red light on the port side, showing an unbroken light over an arc of 135°, from right ahead to 22,5° abaft the beam on the respective side.
Code: WIAM When splicing an eye on a mooring wire (using the recommended 5 full tucks and 2 half tucks) the effective breaking strength of the wire may be affected by the splice. What would be the anticipated change in the breaking strength of the wire?
A reduction in strength of 10 % to 15 %.
A reduction in strength of 30 % to 40 %.
A reduction in strength of 1 % to 5 %.
No reduction in strength.
Code: JLRE 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 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 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 less than 100 metres in length. She is sounding an additional warning to approaching vessels to “navigate with extreme caution”.
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”.
Code: AKMY What are we seeing here?

Sailing vessel

A sailing vessel less than 20 metres in length, displaying the optional combined lantern in lieu of standard sailing lights, seen head-on.
A sailing vessel, seen from astern, where the edges of her sidelights are both visible.
A sailing vessel, at anchor.
A sailing vessel of less than 10 metres in length, displaying the mandatory combined lantern in lieu of sailing lights, seen head-on.
Code: WYXW What can be used to reduce the effect of the state of sea-water?
Vegetable/Fish Oil.
Crude Oil.
Fuel Oil.
Foam.
Code: VNSG Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?
All of the suggested answers.
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.
Code: XHDE Which method is used to make a physical connection between a rescue vessel and a wreck?
Rocket line.
Cosmos line.
Sputnik line.
Heaving line.
Code: DPTB 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?

Marine flag

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.



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Май, 11, 2023 2560 0
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