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家 在线测试 CES 所有类型的船舶 2nd-Off / 3rd-Off Test for Officers onboard about Navigation, Operational Level (CES v6.0)
在线测试： Test for Officers onboard about Navigation, Operational Level (CES v6.0)
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该测试由 80 个随机问题组成。
有关此主题的总问题： 209
有关此主题的总问题： 209
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The tug has been released and is all clear. As officer in charge of that operation, should this be reported and to whom?
Reported all clear to the Bridge.
No need for reporting as the order was given from the bridge.
Report all clear to the tug.
Report all clear to the Engine Room.
What is the correct understanding of the term “a ship with good Directional Stability”?
A ship which when the rudder is left amidships, it will continue on approximately a straight course.
A ship where the amount of positive transverse stability (GM) will vary with the direction of the ship’s head.
A ship which when a rudder angle is applied and the ship starts to swing, will continue to swing even after the rudder is returned to amidships.
A ship which will maintain its course unless large rudder angles are applied.
Which of the following precautions should be taken when work is to be carried out on the radar scanner unit on the mast?
A “Not to be used” sign on all radars and fuses for the complete radar systems to be removed.
A sign needs to be attached to all the radars warning the bridge officers of repairs and the fact the radars are “Not to be used”.
Only the electrical fuses forthe radar undergoing repairs needs to be removed, allowing the ship to retain a workable radar.
Only the electrical fuses for the scanner motor needs to be removed.
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.
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.
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 %.
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 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.
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.
The Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the “con” of the ship. What actions should the Officer of the Watch (OOW) take in this situation?
Watch the actions made by the Master and if not dangerous, wait until the Master becomes more capable to take control or leaves the bridge.
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
Tell the Master you consider him incapable of taking over the responsibility of the watch and that he should retire to his cabin and sleep it off.
Tell the Master you do not think this is a good idea and retain control of the watch.
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.
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.
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.
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.
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.
You are on a power-driven vessel underway in open water. This vessel is sighted on the port bow on a steady bearing. What kind of vessel is it and what will your action be?
This is a sailing vessel underway, seen head-on. It is my responsibility to keep clear under rule 18 and I will take appropriate avoiding action.
This is a vessel engaged in fishing. It is my responsibility to keep clear under rule 18 and I will alter course to starboard, sounding one short blast.
This is a sailing vessel not making way through the water. There is no risk of collision and I will maintain my course and speed.
This is a sailing vessel underway. I am the stand-on vessel and will maintain my course and speed under rule 17.
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 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.
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.
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.
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.
Is the location of a vessel’s standard compass binnacle critical?
Yes, it should be away from major electrical power cables.
Yes, it should be on the fore and aft centreline of the ship.
Yes, for the reasons stated in all of the suggested answers.
Yes, it should be sited on a non-metallic base if possible.
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 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.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”.
CA.
TT.
AS.
CQ.
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 ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?
Stop engines and check over the side for any signs of pollution.
Call the Master and check the position for any immediate dangers.
Contact the other ship and send the bridge lookout down to start taking soundings.
Sound the General Alarm and stop engines.
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.
You are proceeding along a narrow channel in front of another vessel, both heading for port. You hear this signal from the vessel behind you. What does it mean?
I am faster than you. Get out of the way.
I intend to overtake you on your port side.
I am operating astern propulsion.
I intend to overtake you on your starboard side.
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.
A man is reported to have fallen overboard and the Officer of the Watch releases the lifebuoy and starts a man overboard manoeuvre, who are the first persons onboard he should inform?
The Master only.
The crew quarters for extra lookouts.
Master and Engine Room.
Chief Officer and lifeboat party.
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.
You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?
It comes from a vessel engaged in pilotage duties at anchor, over 100 metres in length.
It comes from a vessel restricted in her ability to manoeuvre.
It comes from a vessel at anchor, less than 100 metres in length.
It comes from a vessel engaged in pilotage duties and it is making way through the water.
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.
The Second Officer, when on watch on the bridge, is often referred to as the OOW. What does OOW actually stand for?
Officer of the Watch.
Operator of the watch.
On official watch.
On official watchkeeping.
Which of the four calculations illustrated is the correct one to determine the latitude of the observer when the sun is on the meridian?
Calculation 3 is correct.
Calculation 1 is correct.
Calculation 4 is correct.
Calculation 2 is correct.
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 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.
According to rule 12 of the International Regulations for Preventing Collisions, in the situation illustrated, which sailing vessel (A or B) must keep out of the way of the other?
Sailing vessel B must out of the way of sailing vessel A.
Sailing vessel A must out of the way of sailing vessel B.
Both sailing vessels are required to take avoiding action.
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
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.
The maximum height that a pilot should be required to climb on a pilot ladder before reaching the deck or stepping onto an accommodation ladder platform is:
15 mtrs.
12 mtrs.
9 mtrs.
6 mtrs.
What is important to check when transferring a position from the GPS receiver to a paper chart?
Ensure that the chart has been corrected up to date.
The chart datum is correct for the area the vessel is located.
That the chart datum is also WGS84 or there are corrections.
That it is a “2D” fix and the antenna height is set correctly.
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.
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 should voyage planning be done?
During the pilotage when leaving the berth.
Prior to leaving the berth.
Before the vessel completes the previous passage.
Before the pilot is leaves the vessel at the departure port.
According to the International Regulations for Preventing Collisions and the illustrated lights, what type of vessel is this and from what direction is it viewed?
This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 m in the direction of the all-round white light. Looking at its port side.
This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 metres in the direction of the all-round red light. Looking at it from astern.
This is a vessel engaged in pilotage duties at anchor. Looking at its port side.
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.
The rudder is in the hard over position with the propeller stopped and the ship turning slowly. On a ship with a single fixed pitch right handed propeller and no thrusters, what can be done to make the ship increase the speed of turn without significantly increasing the forward speed of the ship?
Give the engines a short kick ahead.
Give dead slow ahead on the engines and leave the rudder in the hard over position.
Give full astern on the engines until ship has stopped and then full ahead on the engines with rudder hard over.
Give half astern on the engines as this will increase the rate of turn.
What would be the effects of a ship passing into shallow water?
The vessel has a tendency to swing to port with a single fixed-pitch right-hand turning propeller.
The ship is less responsive to both rudder and propeller.
There is no noticeable difference in performance of the ship.
The speed is not affected, but more rudder is required to steer the ship.
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.
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.
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.
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”.
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.
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.
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”.
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.
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 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 has a right-handed propeller and is swinging to starboard when the engines are slow ahead and the rudder is to starboard. The engines are stopped and the rate of swing rapidly slows down. How could the swing to starboard be maintained without the ship making much headway.
By applying the rudder hard over to starboard and going ahead on the engines.
Astern on the engines will allow Transverse Thrust to continue the swing.
The only effective method is by using the bow thruster to push the bow to starboard.
Transverse Thrust will reduce the swing and therefore a kick ahead is necessary with full starboard helm applied.
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.
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.
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 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.
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.
According to rule 13 of the International Regulations for Preventing Collisions at Sea, what is the definition of “an overtaking vessel”?
When the vessel is detected as a radar target or sighted visually in a position directly astern.
When coming up with another vessel from a direction more than 45° abaft her beam.
When coming up with another vessel from a direction more than 22,5° abaft her beam.
When coming up with another vessel from any direction abaft her beam.
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.
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”.
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.
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.
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.
What are the additional duties required by the Officer of the Watch when navigating in fog?
Sound fog signal, plot positions and keep a good lookout.
All of the suggested answers.
Sound fog signal, effective radar watch reporting ship movements to Master and keep a good lookout for ships and fog signals.
When navigating in fog the Master will take over the watch and the Officer of the Watch should follow all of his instructions.
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.
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.
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 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 Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the “con” of the ship. What actions should the Officer of the Watch (OOW) take in this situation?
Tell the Master you do not think this is a good idea and retain control of the watch.
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
Tell the Master you consider him incapable of taking over the responsibility of the watch and that he should retire to his cabin and sleep it off.
Watch the actions made by the Master and if not dangerous, wait until the Master becomes more capable to take control or leaves the bridge.
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.
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 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.
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.
