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Heim Online-Tests CES Alle Arten von Schiffen 2nd-Off / 3rd-Off Test for Officers onboard about Navigation, Operational Level (CES v6.0)
Online-Test: Test for Officers onboard about Navigation, Operational Level (CES v6.0)
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Der Test besteht aus 80 zufälligen Fragen.
Gesamtzahl der Fragen zu diesem Thema: 209
Gesamtzahl der Fragen zu diesem Thema: 209
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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.
Can anything be done on a vessel with forward speed, to reduce the change in heading caused by a right hand fixed pitch propeller being put astern?
Yes, the rudder can be put to port.
No, 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 can be cycled from side to side.
The rudder should be put hard to starboard to reduce the water flow to the left side of the propeller.
When fastening synthetic fibre ropes such as polypropylene on bitts, for safety and better rope control it is recommended to:
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 in a figure of eight fashion, fig. 3.
Make it fast on the second bitt alone, fig. 2.
What can be simply rigged to assist a survival craft in keeping alongside own vessel?
The survival craft painter made fast on the vessel’s deck.
A single weighted line hanging over the side from the deck.
A painter rigged fore and aft against the vessel’s side.
The accommodation ladder deployed to the water surface.
With the Master on the bridge, when is the Officer of the Watch officially relieved of their responsibility for the vessel?
It varies from deep sea to pilotage operations and is never very clear.
As soon as the Master enters the bridge.
When the Master starts giving steering orders.
When the Master informs the Officer of the Watch that he is taking over the “con”.
What special equipment can often provide assistance in locating a survival craft or man overboard and in the water?
AIS.
A sectored search pattern.
A SART.
A RACON.
What letter is represented by this flag and what is it’s meaning when displayed by a vessel in port?
P – All persons should report on board as the vessel is about to proceed to sea.
W – All persons should report onboard as the vessel is about to proceed to sea.
S – I am operating astern propulsion.
P – I require a pilot.
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, by definition in the International Collision Regulations, is a “vessel restricted in her ability to manoeuvre”?
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.
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 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 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.
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.
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.
Which method is used to make a physical connection between a rescue vessel and a wreck?
Heaving line.
Rocket line.
Cosmos line.
Sputnik line.
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.
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.
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 stopped and making no way through the water.
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 on a collision course with own ship.
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.
How will the ship behave if it experiences a complete loss of power (blackout) in the situation illustrated?
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.
The vessel will gradually swing to port and the speed will slowly reduce.
Which part of the magnetic compass error changes with a change in the course steered?
Variation.
All of the suggested answers.
Deviation.
Induced magnetism.
What sound signal can be made when nearing a bend in a river, with the view around the bend obscured by an intervening obstruction?
One prolonged blast.
One short blast.
Two short blasts.
Two prolonged blasts.
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.
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.
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?
Similar distance to deep water.
A greater distance.
About 1,5 nautical miles.
A shorter distance.
What can be used to reduce the effect of the state of sea-water?
Crude Oil.
Foam.
Vegetable/Fish Oil.
Fuel Oil.
What action should the Officer of the Watch (OOW) take if he is forced to make a major deviation from the voyage plan?
There is no special action necessary.
Make an appropriate entry in the Log Book.
Check that the deviation will not lead into danger.
Inform the Master.
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. The additional signal indicates that her cable extends at least 25 metres from her bow.
A vessel at anchor, more than 100 metres in length. She is sounding the additional signal to give warning of her position.
A vessel aground, more than 100 metres in length. The additional signal indicates which side the clear water lies on.
A vessel at anchor, less than 100 metres in length. She is sounding the additional signal top give warning of her position.
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.
What is the correct understanding of the term “Block Coefficient” as applied to a ship?
The comparison of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.
The ratio of the water plane shape of the ship to a rectangle of the same extreme dimensions.
The coefficient of a Block and Tackle.
The restriction of a valve in a pipe to the flow of fluid through that pipe.
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.
You are proceeding up a river, with berths on both banks. You see this flag hoist on a vessel moored on a berth ahead. What does it mean?
You should proceed at slow speed when passing me.
I am about to depart the berth.
My engine is disabled.
Caution! I have an anchor down.
The maximum rudder angle on your ship is 35°. Do you think this is the angle that the rudder is most effective?
No, the rudder is most effective at angles between 10 and 20°.
No, the rudder is most effective at small rudder angles.
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.
You are approaching the port entrance. What do these lights mean?
A vessel may proceed only when she has received specific orders to do so.
Vessels may proceed – one-way traffic.
A vessel may proceed only when she has received specific orders to do so, except that vessels which can safely navigate outside the main channel need not comply with this message.
Vessels may proceed – two-way traffic.
In the diagram, the amount of water under the keel is indicated by the letter “C”. Which bridge instrument would measure this value?
Echo Sounder.
Draught Indicator.
Arpa Radar.
ECDIS.
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.
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?
Manoeuvring signals will be given only on the forward whistle; warning signals will 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.
They shall be given on one whistle only.
They shall be given on both whistles simultaneously.
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.
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 using the equipment on regular watchkeeping duties.
By following the standard company Induction procedures for a bridge watchkeeping officer.
The certificate of competency will ensure the officer has suitable competence in operating the bridge equipment.
By asking other officers and practicing with the use of the equipment.
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 radar may be suppressing the mark with application of the Interference Rejection control.
The transmitted radar frequency may not trigger the Racon transmitter.
The ship has a single fixed pitch right-handed propeller and is going astern as illustrated. What is the most likely way the ship will react in these circumstances?
The ship will go straight astern and the heading will remain approximately the same.
The stern will fall off to starboard, making the heading swing to port.
The stern will “back” into the wind and the ship’s heading will swing to starboard.
The bow will “seek” the wind and the ship will swing to port.
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 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 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.
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 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.
Which is the “CENTRE LINE”, in the figure?
The Fore and aft Centreline is indicated by D, in the figure.
The Fore and aft Centreline is indicated by A, 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.
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.
What is “AIR DRAUGHT”, in the figure?
Air draught is indicated by B, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by C, in the figure.
Air draught is indicated by D, in the figure.
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.
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.
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.
What is the correct understanding of the term “a ship with good Directional Stability”?
A ship when swinging, will continue to swing even after the rudder is returned to amidships.
The ship will shear away from its heading if not controlled.
A ship moving forwards with the rudder amidships, will continue in a straight line.
A ship will always follow in the direction that the rudder is put.
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.
Who is ultimately responsible for the voyage plan?
The Master.
The Second Officer as the official Navigation officer.
The Officer of the Watch (OOW) on duty.
The ship owner will provide overall parameters within which the ship must follow.
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.
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 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 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.
The vessel’s bow is attracted by the bank.
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.
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?
No reduction in strength.
A reduction in strength of 1 % to 5 %.
A reduction in strength of 30 % to 40 %.
A reduction in strength of 10 % to 15 %.
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.
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 is the purpose of a sea anchor deployed from a lifeboat?
To hold the lifeboat in position with other survival craft.
To keep the lifeboat’s heading against the wind and sea and reduce drift.
To keep the lifeboat in a position close to the vessel.
To give a better signal to any aircraft searching for survivors.
What signal may be given by sound and by light to indicate that a vessel fails to understand the intentions or actions of another vessel, or is in doubt that sufficient action is being taken by the other to avoid collision?
One prolonged blast (flash), followed by five or more short and rapid blasts (flashes).
Five short and rapid blasts (flashes).
Five prolonged blasts (flashes).
Three short and rapid blasts (flashes).
This vessel is sighted ahead and slightly to port. What is her situation? What will you do?
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 not under command at anchor.
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 vessel is aground. I will navigate with extreme caution given the nature of the hazard.
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.
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.
What is the correct understanding of the term “Isobar”?
An “Isobar” is the line showing the direction of the predicted path of a hurricane.
An “Isobar” is a line joining places of equal temperature.
An “Isobar” is the line of the cold front in a frontal depression.
An “Isobar” is a line joining places of equal pressure.
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.
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 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.
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.
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.
If your vessel is fitted with wires on self-stowing “split drum” winches, the advantage of having these split drum winches is:
No crushing of the wire.
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.
All the listed alternatives.
You are on a power-driven vessel underway in open water. This vessel is sighted wide on the port bow. It’s bearing is opening, but its distance is closing rapidly. Which of the following is a correct assessment of the situation and the action to be taken?
Risk of collision is deemed to exist and I will make a broad alteration of course to starboard, sounding one short blast. I will re-assess the situation when the alteration is carried out.
Risk of collision is deemed not to exist and I will maintain my course and speed. I will continue to monitor the situation.
Risk of collision is a possibility. I will maintain my course and speed for now, but be prepared for an alteration of course to port if the CPA seems to be less than 0,2 nm as we draw closer.
Risk of collision is deemed not to exist. However, to be sure of a safe passing distance, I will reduce my speed to allow the other vessel to pass ahead.
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.
What is the colour and characteristic of a “towing light”, as defined in the International Regulations for Preventing Collisions at Sea?
One of two all-round amber, alternate flashing lights, displayed where they can best be seen.
White, fixed, displayed as an additional light on the foremast over an arc of 225°, from right ahead to 22,5° abaft the beam on each side of the vessel.
Yellow, fixed, seen over an arc of 135° and so arranged as to display 67,5° from right aft on each side of the vessel.
Amber, all-round, flashing, where it can best be seen.
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.
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 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.
One short blast.
Two prolonged blasts.
Two short blasts.
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 50 %.
It should be about 55 %.
It should be about 5 %.
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.
What can be a cause of error observed on a gyro compass reading?
Large values of variation caused by the gyro pole.
Incorrectly set heading and speed values.
Fluctuations in the magnetism around the compass.
Incorrectly set latitude and speed values.
What type of vessel is this and from what direction are you seeing it?
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 duties at anchor. 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 white light. I am looking at her port side.
This is a vessel engaged in pilotage operations, deploying or recovering a pilot. I am looking at her port side.
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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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.
Для проверки знаний и подготовки к тесту - отличное решение, просто с небольшими ньюансами.
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