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Главная Онлайн-тесты CES Все типы судов 2nd-Off / 3rd-Off Test for Officers onboard about Navigation, Operational Level (CES v6.0)
Онлайн-тестирование: Test for Officers onboard about Navigation, Operational Level (CES v6.0)
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Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 209
Всего вопросов по данной теме: 209
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What are the three possible types of messages seen when there is an ECDIS alert?
Either an Alarm, an Indication or a Caution.
Either an Alarm, a Warning or an Information.
Either an Alarm, a Warning or a Caution.
Either an Alarm, an Indication or a Caution.
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?
Wire takes 45 % of the extra load. Rope takes 55 % of the extra load.
Wire takes 55 % of the extra load. Rope takes 45 % of the extra load.
The wire and rope will share the load equally.
Wire takes 95 % of the extra load. Rope takes 5 % of the extra load..
Why should a Ground Stabilised True Motion radar display not be used for anti-collision purposes?
True motion does not provide the collision risk of targets as only true vectors are available.
The true vector can never give an indication of collision risk with another ship.
The “aspect” of the target is confused, so the Regulations for Preventing Collisions cannot be accurately applied.
Because this display is only ever used for navigation.
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.
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 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 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 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.
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.
If a ship in deep water requires 2 nautical miles to “crash stop”, what will be the crash stopping distance in shallow water for the same start speed?
A greater distance.
Depends on the crash stop used.
A shorter distance.
Similar distance to deep water.
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 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.
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 are the immediate duties of the bridge Officer of the Watch when the ship suddenly runs into a fog bank?
Commence sounding the fog signal and reduce speed to Slow Ahead.
Commence sounding the fog signal and if the radar indicates no echoes in the vicinity, proceed at the normal speed until ships are detected on the radar or until the fog lifts.
Commence sounding the fog signal and call the Master and wait for him to arrive before taking any further actions.
Commence sounding the fog signal, engines on standby, call the Master and lookout, if not already on duty.
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.
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?
The decision should be left to the pilot who is in charge of the manoeuvre.
No. 2.
No. 1.
No. 3.
Is the location of the Compass Binnacle critical?
Yes, it should be on the fore and aft centreline of the ship.
Yes, it should be away from all electrical power cables.
Yes, it should be sited on a non-metallic base if possible.
Yes, for the reasons stated in all of the suggested answers.
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 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.
The ship is to berth alongside a quay in calm conditions of no wind or current. The ship has a signle fixed pitch right handed propeller. Which angle of approach would be considered the most favourable?
The decision should be left to the pilot who is in charge of the manoeuvre.
No. 2.
No. 3.
No. 1.
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.
In the figure, which letter gives the correct understanding of the term “LENGTH OVERALL”?
Length Overall is indicated by C, in the figure.
Length Overall is indicated by D, in the figure.
Length Overall is indicated by B, in the figure.
Length Overall is indicated by A, in the figure.
Where can a ship expect an act of piracy to take place?
In American waters.
At the south end of the Red Sea.
All over the world.
In Far East waters.
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?
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.
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.
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.
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.
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.
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.
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 Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.
The error due to deviation is large for that ships heading.
The induced magnetism from the earth’s magnetic field is very strong in that area.
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.
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.
What does this flag mean?
I wish to communicate with you.
My vessel is stopped and making no way through the water.
I have a diver down; keep well clear at slow speed.
Yes (affirmative).
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”.
CA.
TT.
AS.
CQ.
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 %.
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.
How will the ship behave if it experiences a complete loss of power (black out) in the situation illustrated?
The wind will push the vessel sideways, but the heading will not change.
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.
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.
What can be used to reduce the effect of the state of sea-water?
Crude Oil.
Foam.
Vegetable/Fish Oil.
Fuel Oil.
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.
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.
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 radar device assists in the detection and location of a survival craft?
EPIRB beacon.
A personal locator beacon.
SART beacon.
AIS beacon.
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 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?
Keep a good lookout for other ships.
Display the “Not under Command” signal and switch off the normal steaming lights.
All of the possible answers.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
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.
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.
You are on a power-driven vessel underway in open water. You sight these lights on the port bow, on a steady bearing. The distance is closing. What are you looking at and what action will you take in compliance with the International Regulations for Preventing Collision at Sea?
This is a power-driven vessel, more than 50 metres in length or less than 50 metres in length and showing a second masthead light, restricted in her ability to manoeuvre. The sidelight of a second vessel can be seen beyond her. Under rule 18, I am obliged to keep clear of the first vessel and will therefore take appropriate avoiding action.
This is a power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres and the tow, both being restricted in their ability to manoeuvre, seen from the starboard side. Under rule 18, I am required to keep clear and will take appropriate avoiding action.
What 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.
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 aircraft is directing a vessel towards the casualty.
The aircraft is short on fuel and is returning to base.
The assistance of your vessel is no longer required.
The casualty is sighted and will require medical assistance.
What are the limits of a passage or voyage plan?
From pilot to pilot.
From berth to berth.
It is dependant on the voyage and if there are any river or canal transits.
From Full Away On Passage (FAOP) to End Of Passage (EOP).
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.
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.
Two ships travelling in opposite directions are to pass each other in a narrow river, as illustrated. Explain what is likely to happen as they pass each other?
Due to interaction, the bows will repel each other, and then when alongside each other the two ships will be sucked together and finally the sterns will be repelled as they start to pass clear.
There will be very little effect between the two ships as they pass.
Due to interaction, the bows will attract each other as they approach, then they will repel each other alongside and as they pass clear, the sterns will be attracted.
As they approach, rudder should be applied quickly to avoid sheering into the path of each other. Then as they are alongside they will be attracted and finally repel each other as they pass clear.
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.
The error should be “High” or “Low” and therefore more information is required.
Add the 5° to the bearings.
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.
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.
What is the probable cause of an error in position of the ship obtained from the GPS system?
A three dimensional instead of a two dimensional position output.
Abnormal sun spot activity causing unusual radiation effects.
Incorrect height of the antenna.
All of the suggested answers.
Which option best completes the following statement? An operator using ECDIS, will notice an out of position navigation buoy because:
A local port authority would send an automatic signal to ECDIS.
It is coloured orange on an ECDIS display.
The radar return and ENC buoy symbol will not coincide.
There will be a flashing alarm on ECDIS showing which one is out.
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?
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
Both sailing vessels are required to take avoiding action.
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.
Which type of vessel suffers from the greatest squat effects?
Vessel with a low Block Coefficient.
Vessel with a high Block Coefficient.
Vessel with a small length to beam ratio.
Vessel with a large length to beam ratio.
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.
Two ships are meeting in a restricted channel as illustrated. Which of the following actions would be the most suitable to take on both vessels as they approach and pass each other?
Slow down if possible without losing steerage and be prepared for prompt application of rudder to counteract any swing as they approach and pass each other.
Increase speed slightly to pass each other as quickly as possible and thereby reduce the effects of “ship to ship” interaction.
Maintain speed and a straight course on the starboard side of the channel.
Keep as far as possible on the starboard side of the channel and maintain speed to retain effective steerage.
The 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 move astern at an increasing speed and the stern start to swing off to starboard.
The ship will probably start to change heading to port and stern speed will increase.
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 starboard and stern speed will increase.
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.
You are approaching the port entrance. What do these lights mean?
A vessel may proceed only when she has received specific orders to do so.
Vessels may proceed – one-way traffic.
A vessel may proceed only when she has received specific orders to do so, except that vessels which can safely navigate outside the main channel need not comply with this message.
Vessels may proceed – two-way traffic.
What 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.
The ship is drifting in the open sea with a temporary engine breakdown. The ship is equipped with GPS navigation equipment. What should the bridge Officer of the Watch do in this situation?
All of the possible answers.
Keep a good lookout for other ships.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Display the “Not under Command” signal and switch off the normal steaming lights.
What is correct UTC in this example? Approx. Pos: N49° 51′ W35° 23′, zone +2, Local Time 0900.
23 00.
07 00.
19 00.
11 00.
What 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 depth of an iceberg below the surface is always about one sixth of its total depth.
The draught of an iceberg is about the same as the visible part of the iceberg above the water.
The draught of an iceberg is normally about 3/4 of its total depth.
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.
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 understood by the term “Dew point” of the air?
The temperature of the water vapour in a cloud.
The “Dew point” is the point at the centre of an Anticyclone.
The temperature at which condensation in the air forms into water droplets.
All of the suggested answers.
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.
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.
The ship is navigating in dense fog where the visibility is less than one mile. The Arpa radar is set on a range 12 miles on a course of 314° and own ship has a vector as shown. What is the vector mode selected on the Arpa?
Relative vectors, sea stabilised.
True vectors.
Relative vectors, ground stabilised.
Relative vectors.
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.
Which statement best describes how land moves, if at all, on an ECDIS set in North-up, relative motion mode?
Land is stopped with the vessel symbol moving across the sea floor.
Land on the chart screen moves relative to the ship symbol.
The land is always in the middle of the screen.
This is a feature only seen on radar displays.
You are in an area of restricted visibility and hear this signal. It is repeated at 2 minutes intervals. What does it indicate?
That there is another vessel in the vicinity and that she has just altered course to port.
That there is another vessel nearby, that she is underway, but stopped and making no way through the water.
That there are two more vessels nearby.
That there is another vessel nearby, but that she is at anchor.
What do the shapes that this vessel is displaying tell us about her?
That she is engaged in towing.
That she is not under command.
That she is restricted in her ability to manoeuvre.
That she is constrained by her draught.
What would be considered the most favourable heading of a ship when launching a lifeboat?
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 about 30° off the prevailing weather and sea with the boat to be launch 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 «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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