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

Question 1 depuis 80

Where can the size of the Magnetic Compass Error be found?

By reference to the last entry in the Compass Error Log Book.

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.

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 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.

According to the International Regulations for Preventing Collisions and the illustrated lights, what type of vessel is it?

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 vessel is aground.

This is a vessel constrained by her draft.

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 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, maintain the watch and determine how the ship is drifting and the probable position after 3 hours.

Display the NUC signal and keep a good lookout.

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.

What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”.

CA.

TT.

AS.

CQ.

What is the purpose of a sea anchor?

To adjust the drifting speed of the lifeboat.

To keep the lifeboat steady against the sea/wind.

To keep the lifeboat in a position close to the vessel.

To give a better signals to any aircraft searching for survivors.

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).

Figure 3 is correct.

Figure 1 is correct.

Figure 2 is correct.

Figure 4 is correct.

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 would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put “Full Astern”?

15 ship lengths.

Varies, but can be determined from trial data.

8 nautical miles.

4 nautical miles.

Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?

The true vector can never give an indication of collision risk with another ship.

The collision regulations are based on ship courses through the water.

The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.

True motion does not provide the collision risk of other ships.

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 altering his course to starboard.

That the vessel is picking up his pilot.

That the vessel is starting his engine and resuming his passage.

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 and keep a good lookout of other ships in the area.

Display anchor signal, check the ships position and keep a good lookout.

Display the anchor signal and ensure the ship swings the same way at each change of tide.

Display the anchor signal, patrol the ship frequency and check the anchor chain for dragging.

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?

Figure 3 is correct.

Figure 2 is correct.

Figure 1 is correct.

Figure 4 is correct.

What actions should be taken by the Officer of the Watch if the ship’s steering system totally fails?

All of the suggested answers.

Display the NUC signal and stop the engine(s).

Call the Master and advise them of the situation.

Request the engine room to check the steering system.

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.

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.

At least 100 metres.

It is more than 50 metres but less than 200 metres.

It is less than 200 metres.

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.

How can the effects of Squat be minimized, when a ship is proceeding in shallow water?

Put a small forward trim on the vessel as this stops squat.

Maintain a speed of about six (6) knots and use minimal rudder when manoeuvring.

Enter the shallow water with a stern trim and proceed at a moderate speed.

Maintain a slow speed just sufficient to maintain steerage.

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.

The positions of the ship provided by the GPS receiver should always be verified by other means. Which of the following suggested methods would be the most accurate?

Bearing and distance from a navigational buoy.

Radar bearings of three distinctive shore objects.

A DR updated position from the last reliable one.

Radar ranges of three distinctive shore objects.

Ships vary considerably in design and underwater shape, but does the ship’s trim ever have any influence on its steering abilities?

Yes, a ship often steers better if trimmed by the bow.

No, the ship will have the same steering ability and is unaffected by trim.

No, it is usually best to be on an even keel and have no trim at all.

Yes, the ship often steers better if trimmed by the stern.

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.

When fastening synthetic fibre ropes such as polypropylene on bitts, for safety and better rope control it is recommended to:

Make it fast in a figure of eight fashion, fig. 3.

Make it fast with round turns on the leading bitt alone, fig. 1.

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.

Once a ship (equipped with self-stowing auto-tension winches) is moored alongside a loading or discharging berth, how is it recommended that the winches are set?

The “spring” winches be left in the auto-tension mode and all other winches with the manual brake on.

The “breastline” and “headline” winches be left in the auto-tension mode and spring winches with manual brake on.

All winches to be left with the manual brake on and out of gear.

All mooring winches be left in “auto-tension” mode.

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.

This vessel is encountered at the mouth of a river. According to the International Regulations for Preventing Collisions and the illustrated shapes, what type of vessel is it?

This is a vessel engaged in dredging or underwater operations. The two balls in a vertical line indicate the side on which an obstruction exists; the two diamonds in a vertical line indicate the side on which it is safe to pass; the ball/diamond/ ball in a vertical line indicate that the vessel is restricted in her ability to manoeuvre.

This is a vessel engaged in dredging or underwater operations. The two balls in a vertical line indicate the side on which it is safe to pass; the two diamonds in a vertical line indicate the side on which an obstruction exists; the ball/diamond/ball indicate that the vessel is restricted in her ability to manoeuvre.

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?

At least 100 metres.

It exceeds 200 metres.

It is more than 50 metres but less than 200 metres.

It is less than 200 metres.

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 from side to side in a “Rudder Cycling” movement.

The rudder should be put Hard to Port to reduce the water flow to the left side of the propeller.

The rudder can be put to Hard to Port to reduce the water from to the right side of the propeller.

The rudder should be kept amidships when going astern and there is little that can be done to reduce the swing to starboard.

When navigating along a coastline what should be considered the most accurate method of navigating?

Passing close to navigational buoys.

Use of radar ranges and bearings.

Bearings of navigational shore marks such as lighthouses.

Use of Differential GPS.

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 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.

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?

Fluctuations in the electrical supply to the compass.

Compass Deviation.

An uncorrected course and speed error.

Variation.

What are the two parts of the magnetic compass error?

Variation and Deviation.

West and East errors.

Permanent and induced magnetism.

The latitude and longitude.

What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?

The distance between the pulse Transmitter and Receiver.

Draught of the ship.

Shallow water effects.

Allowance for the ships speed.

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.

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, on the tug only. Three shapes shall also be displayed, being three balls in a vertical line.

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.

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 forward on the tug, in a vertical line, the upper and lower being balls and the middle one a diamond.

What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?

CQ.

TT.

CA.

AS.

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 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.

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.

I don’t know.

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.

Which of the following hull shapes would normally provide a directionally stable ship?

A long ship with a narrow beam.

A short ship with a narrow beam.

A short ship with a wide beam.

A long ship with a wide beam.

What are we seeing here?

A sailing vessel, seen from astern, where the edges of her sidelights are both visible.

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 of less than 10 metres in length, displaying the mandatory combined lantern in lieu of sailing lights, seen head-on.

A sailing vessel, at anchor.

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.

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 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 are the main components causing the magnetic compass to require a regular evaluation and compass correction?

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.

Permanent and induced magnetism in the ships structure.

What is the description for a sidelight, as shown in rule 21 of the International Regulations for Preventing Collisions at Sea?

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 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, 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.

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.

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?

No, the lift force is unaffected by the speed of the propeller.

Yes, the lift force will be dramatically reduced when the engines are stopped.

Yes, the lift or turning force will be reduced to about 50 % of the original lift force 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.

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.

It would be very difficult to maintain full deep sea RPM on the engines and therefore difficult to assess the speed.

Faster than deep water.

The same as deep water.

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.

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.

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.

Who is ultimately responsible for approving the voyage plan?

The Officer of the Watch (OOW) on duty.

The Second Officer as the official Navigation Officer.

The Master.

The ship owner will provide overall parameters within which the ship must follow.

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.

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”?

Ten (10).

Seven (7).

Nine (9).

Eight (8).

What is the situation of this vessel?

This vessel is not under command, but is making way through the water.

This vessel is aground.

This is a vessel constrained by her draft.

This vessel is not under command and stopped in the water.

How can the effects of Squat be minimized, when a ship is proceeding in shallow water?

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.

Maintain a slow speed just sufficient to maintain steerage.

Decrease the speed and keep this ship to the centre of the channel where the water is probably deepest.

What is understood by the term “Dew point” of the air?

The temperature at which water vapour 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.

Can the OOW be the sole lookout?

When the visibility is good and the ship is in the middle of the ocean where there is very little shipping.

Never should the Officer of the Watch be the only lookout.

During daylight when visibility and traffic allows.

Only if the ARPA radar is set onto Auto Acquisition with an audio alarm sounding when a ship is detected.

When navigating using the GPS, how does the GPS display indicate when the accuracy of the displayed position is reduced?

A large “Correction Factor” number is displayed on the screen.

The GPS display is always very accurate and does not give any indication of lack of accuracy.

A large HDOP value is displayed on the screen.

The GPS display flashes and sounds an alarm.

What is the advantages of a GPS satellite system compared to other navigational aids?

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.

The GPS system is based on hyperbola navigation.

The GPS system gives information about position, speed and time continuously world wide.

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.

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.

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.

1 = a, 2 = b, 3 = c and 4 = d.

The rudder is hard over with the engine at full ahead. Will the turning effect of the rudder be changed if the engine is stopped?

Yes, the turning force will be dramatically reduced when the engine is stopped.

No, the turning force is unaffected by the speed of the propeller.

No, the turning force applied by the rudder will be maintained within about 90 % of the turning force when going full ahead.

Yes, the turning force will be reduced to about 50 % of the original force when the engine is stopped.

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.

There should be no error with a properly working echo sounder.

Shallow water effects.

The strength of the tide and current in the river.

With a pilot ladder, the lowest spreader shall be the 5th step from the bottom. At what interval should there be further spreaders upwards on the ladder?

At intervals not exceeding 9 steps.

At intervals not exceeding 12 steps.

It does not matter where the spreaders are fitted.

At intervals not exceeding 15 steps.

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?

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.

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.

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 can be used to reduce the effect of the state of sea-water?

Crude Oil.

Foam.

Vegetable/Fish Oil.

Fuel Oil.

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 amidships.

At about 1/6 of the ship’s length from the bow.

At a position near the stern of the ship.

At about 1/6 of the ship’s length from the stern.

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.

Courses to steer; distance off dangers; parallel index lines; expected currents; prevailing winds; distance between alteration points.

Expected prevailing wind and weather.

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.

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 important to check when transferring a position from the GPS output to a paper chart?

Ensure that the chart has been corrected up to date.

It is important to ensure that the GPS is setup on 2 dimensional and not 3 dimensional position fixes.

Ensure that the GPS is setup on the same datum as the chart.

Any necessary corrections are applied to convert between the GPS datum and the chart datum.

After passage planning with ECDIS, how should the route be checked for safety?

Investigate the displayed waypoint list after it is printed out.

Transfer the ECDIS plan onto paper charts.

Using the ECDIS route checker and by visually sighting all along it.

Using the ECDIS route and geometry checker only.

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.

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Дмитрий

Écrire

22.10.2025

Некоторые правильные ответы помечает как не правильные. Отсутствует звуковое сопровождение для некоторых вопросов. Отсутствуют картинки для некоторых вопросов. Так же один раз выбранный мной ответ был помечен как не правильный, а в summary после теста показан он как правильный вариант, а выбранный мной ( тот же вариант ответа ) зачло как не правильный.

Для проверки знаний и подготовки к тесту - отличное решение, просто с небольшими ньюансами.

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JESSIE

Écrire

11.04.2025

nice and knowlegebl

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