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Головна Онлайн-тести CES Усі типи судів 2nd-Off / 3rd-Off Test for Officers onboard about Navigation, Operational Level (CES v6.0)
Онлайн-тестування: Test for Officers onboard about Navigation, Operational Level (CES v6.0)
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Онлайн-тест
Опис
Відгуки 1
Тест складається із 80 випадкових питань.
Усього питань на цю тему: 209
Усього питань на цю тему: 209
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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.
The position of the ship provided by the GPS should always be confirmed by other means, when possible. Which of the following suggested methods would be the most accurate?
Compass bearings of three shore objects.
Bearing using the Radio Direction Finding of three radio beacons.
The ranges of three distinctive shore objects on the radar.
Bearing and distance from a navigational Buoy.
In an extreme case, in addition to having your winch brakes as tight as can be, you can increase the brake holding capacity of the winch drum by putting it in gear and setting the power to the “heave” position. However this may cause:
Strain on the fairleads and rollers in use in excess of their Safe Working Load.
All the listed alternatives.
The increased braking power of the winch to exceed the breaking strength of the wire and rope paid out from it which might cause the wire or rope to part.
Damage to the winch by distorting the shaft.
When should gangway nets be rigged?
Between sunset and sunrise.
Whenever the gangway is regarded as unsafe.
When it is deemed necessary by the Master of the Chief Officer.
Whenever the gangway is rigged.
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 understood by the term “Dew point” of the air?
The temperature at which water vapour in the air forms into water droplets.
The temperature of the water vapour in a cloud.
The “Dew Point” is the point at the centre of an Anticyclone.
All of the suggested answers.
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.
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 does this flag mean?
I have a diver down; keep well clear at slow speed.
Yes (affirmative).
My vessel is stopped and making no way through the water.
I wish to communicate with you.
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.
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”.
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 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.
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 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.
What does this signal flag indicate when seen on a vessel in a port approach?
Keep clear. I have divers down.
I require a pilot.
I am in distress and require immediate assistance.
I require medical assistance.
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.
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 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.
In the Beaufort Scale of Wind Force, what is the Beaufort number associated with the wind force known as a “Gale”? This should not be confused with a “Near Gale” or “Strong Gale”?
Ten (10).
Seven (7).
Nine (9).
Eight (8).
What 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 can be used to reduce the effect of the state of sea-water?
Crude Oil.
Foam.
Vegetable/Fish Oil.
Fuel Oil.
The ship is sailing in shallow water with reduced Under Keel Clearance. If the ship is steaming with the engines at full RPM, what would be the speed in comparison to the speed achieved in deep water?
Slower than deep water.
It would be very difficult to maintain full deep sea RPM on the engines and therefore difficult to assess the speed.
Faster than deep water.
The same as deep water.
What is the 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.
The IMO Standard Marine Communication Phrases are recommended to be used when the ship’s Officer is verbally talking to whom?
When giving orders on board with other seafarers.
When talking on the VHF between ships.
When talking between ship and shore personnel.
In circumstances described in all of the answers provided.
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 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.
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.
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.
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 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.
Who is responsible for the number and the position of any tugs to be used during a mooring operation?
The Pilot is fully responsible for the number and use of tugs within the port area.
The Master, with consideration of the advice of the pilot.
The Port Authority will dictate the tug requirements and their use within the port limits.
It will be only the wind speed that will determine the required number of tugs and how they are used.
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.
Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
Standard Marine Navigational Vocabulary.
The (ISC) Bridge Procedures Guide.
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
The Oxford Concise Dictionary.
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.
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.
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.
You are in an area of restricted visibility. You hear this sound signal. What does it mean?
That there is a vessel in distress nearby.
That there is a vessel at anchor in the vicinity.
That there is a vessel aground in the vicinity.
That there is a vessel engaged in underwater operations in the vicinity. She has divers down.
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.
What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
The distance between the pulse Transmitter and Receiver.
Draught of the ship.
Shallow water effects.
Allowance for the ships speed.
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.
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.
A ship is equipped with a right-handed fixed pitch propeller, which when going from Full Ahead to Full Astern will make the ship sheer to starboard. Can anything be done to reduce this change in heading?
The rudder can be put from side to side in a “Rudder Cycling” movement.
The rudder should be put Hard to Port to reduce the water flow to the left side of the propeller.
The rudder can be put to Hard to Port to reduce the water from to the right side of the propeller.
The rudder should be kept amidships when going astern and there is little that can be done to reduce the swing to starboard.
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.
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.
After passage planning with ECDIS, how should the route be checked for safety?
Investigate the displayed waypoint list after it is printed out.
Transfer the ECDIS plan onto paper charts.
Using the ECDIS route checker and by visually sighting all along it.
Using the ECDIS route and geometry checker only.
What is the direction of wind associated with an anticyclone (area of high pressure) in the Northern Hemisphere?
Clockwise around the high pressure.
Directly away from the centre of the anticyclone towards the nearest Low pressure.
Straight towards the centre of the anticyclone.
Anticlockwise around the high pressure.
Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
The true vector can never give an indication of collision risk with another ship.
The collision regulations are based on ship courses through the water.
The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.
True motion does not provide the collision risk of other ships.
What is “AIR DRAUGHT”, in the figure?
Air draught is indicated by C, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by B, in the figure.
What is happening here?
These are two vessels engaged in fishing (pair trawling), showing the additional voluntary signals for shooting nets.
These are two vessels engaged in fishing, using purse-seine gear. The searchlights are simply working lights.
This is a vessel engaged in towing a disabled tow, restricted in its ability to manoeuvre, with a searchlight used to highlight the location of the tow.
These are two vessels engaged in fishing (pair trawling), showing the additional volutary signals for hauling nets.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
CQ.
TT.
CA.
AS.
A ship is navigating in the Caribbean in August when it receives the warning of a Hurricane. To determine the centre of the storm the Master uses “Buys Ballot’s Law” and faces the wind. On what side of the Master would the low pressure area be located?
On the right side.
This is not a suitable method to use with a Hurricane.
Straight ahead.
On the left side.
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 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 are the required data inputs into most gyro compasses to reduce any possible compass error?
Maximum helm angle and rolling period.
Latitude and Speed.
Deviation and Variation.
All of the data in the suggested answers.
What immediate actions should the Officer of the Watch take when the ship goes aground on an uncharted shoal in the middle of the ocean?
Stop engines and immediately request “Full Astern”.
Stop engines and call the Master.
Stop engines and tell the engine room to switch over to high suctions.
Sound the General Alarm and plot the ships position.
A ship is being overtaken by another ship while proceeding along a river. What should be the required procedure?
The overtaking vessel should request permission from the other ship by sounding two prolonged blasts followed by two short blasts on the whistle or by direct VHF contact.
The overtaking vessel can overtake but must allow sufficient space to reduce the interaction between the two vessels.
The overtaking vessel should request permission to overtake from the Port Control VTS.
There should be no overtaking in these confined waters.
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.
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.
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.
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.
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.
What are we seeing here?
A sailing vessel, seen from astern, where the edges of her sidelights are both visible.
A sailing vessel less than 20 metres in length, displaying the optional combined lantern in lieu of standard sailing lights, seen head-on.
A sailing vessel of less than 10 metres in length, displaying the mandatory combined lantern in lieu of sailing lights, seen head-on.
A sailing vessel, at anchor.
What 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.
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.
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.
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.
If a distress signal is received on board your ship, what should be the first action that should be taken?
Determine if anyone else has heard the distress signal and if your vessel is near the distress.
Attempt to establish contact with the distressed vessel.
Contact SAR Authorities via nearest coastal Radio station.
Determine how close your vessel is to the distressed vessel.
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.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”.
CA.
TT.
AS.
CQ.
What is the purpose of a fire wire?
A wire for handling fire buckets.
A wire for pulling burning ships off the pier.
A wire for securing the Fire Tug alongside a burning ship.
A wire for pulling fire-hoses up to the top bridge.
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.
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.
You are proceeding along a coastal route when you hear this signal. The visibility is severely restricted. What does the signal mean?
There is a vessel aground in the vicinity. She is less than 100 metres in length. She is sounding an additional warning to approaching vessels to “navigate with extreme caution”.
There is a vessel at anchor in the vicinity. She is less than 100 metres in length. She is sounding an additional warning to approaching vessels that they are “running into danger”.
There is a vessel at anchor in the vicinity. She is more than 100 metres in length. She is sounding an additional warning signal to approaching vessels, directing them to “keep clear”.
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”.
When should a ship’s officer use some of the English language found in the IMO’s publication “Standard Marine Communication Phrases”?
When talking on the VHF between ships of differing flag states.
When giving orders to a multi-national bridge team.
In circumstances described in all of the answers provided.
When talking between ship and shore in a foreign land.
What radar device assists in the detection and location of a survival craft?
EPIRB beacon.
A personal locator beacon.
SART beacon.
AIS beacon.
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.
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.
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.
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 «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.
