Test for Officers onboard about Navigation, Operational Level (CES v6.0)
Результаты прохождения теста
Тест состоял из 80 случайных вопросов.
Всего вопросов по данной теме: 209
Всего вопросов по данной теме: 209
Ваш результат: 90%
Правильные ответы:
1
What does this signal hoist mean?
Ваш ответ правильный:
I require immediate assistance.2
Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
Ваш ответ правильный:
The collision regulations are based on ship courses through the water.3
The lights here show those that must be exhibited by a vessel engaged in towing, as per rule 24 of the International Collision Regulations. But how long is the tow behind this vessel?
Ваш ответ правильный:
It exceeds 200 metres.4
Is the location of the Compass Binnacle critical?
Ваш ответ правильный:
Yes, for the reasons stated in all of the suggested answers.5
Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?
Ваш ответ правильный:
All of the suggested answers.6
What possible reason could there be for the identification mark associated with a Racon not being visible on the radar screen?
Ваш ответ правильный:
All of the suggested answers.7
If your vessel is fitted with wires on self-stowing “split drum” winches, the advantage of having these split drum winches is:
Ваш ответ правильный:
All the listed alternatives.8
What would be the effects of a ship passing into shallow water?
Ваш ответ правильный:
The ship is less responsive to both rudder and propeller.9
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).
Правильный ответ:
Figure 1 is correct.Ваш ответ:
Figure 2 is correct.10
What is the depth of an iceberg below the surface of the sea?
Ваш ответ правильный:
The draught of an iceberg varies with the type of berg and its age.11
What is important to check when transferring a position from the GPS output to a paper chart?
Ваш ответ правильный:
Any necessary corrections are applied to convert between the GPS datum and the chart datum.12
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?
Ваш ответ правильный:
The ship will probably start to change heading to starboard and stern speed will increase.13
Which of the following precautions should be taken when work is to be carried out on the radar scanner unit on the mast?
Ваш ответ правильный:
A “Not to be used” sign on all radars and fuses for the complete radar systems to be removed.14
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.
Ваш ответ правильный:
The target is on the same course and speed as own ship.15
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?
Ваш ответ правильный:
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.16
What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
Ваш ответ правильный:
Draught of the ship.17
What action should the Officer of the Watch (OOW) take if he is forced to make a major deviation from the voyage plan?
Ваш ответ правильный:
Inform the Master.18
When should voyage planning be done?
Ваш ответ правильный:
Prior to leaving the berth.19
What is the probable cause of an error in position of the ship obtained from the GPS system?
Ваш ответ правильный:
Incorrect height of the antenna.20
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?
Ваш ответ правильный:
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.21
Ships vary considerably in design and underwater shape, but does the ship’s trim ever have any influence on its steering abilities?
Ваш ответ правильный:
Yes, the ship often steers better if trimmed by the stern.22
Who is responsible for the number and the position of any tugs to be used during a mooring operation?
Ваш ответ правильный:
The Master, with consideration of the advice of the pilot.23
A ship is being overtaken by another ship while proceeding along a river. What should be the required procedure?
Ваш ответ правильный:
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.24
According to rule 13 of the International Regulations for Preventing Collisions at Sea, what is the definition of “an overtaking vessel”?
Ваш ответ правильный:
When coming up with another vessel from a direction more than 22,5° abaft her beam.25
If a distress signal is received on board your ship, what should be the first action that should be taken?
Ваш ответ правильный:
Attempt to establish contact with the distressed vessel.26
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
Ваш ответ правильный:
CQ.27
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.
Ваш ответ правильный:
Astern on the engines will allow Transverse Thrust to continue the swing.28
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?
Ваш ответ правильный:
At intervals not exceeding 9 steps.29
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?
Ваш ответ правильный:
Uncovered manila rope.30
What methods could be introduced into a passage plan for continuous monitoring of the ships position when navigating along a coastline?
Ваш ответ правильный:
Parallel Index lines.31
When fastening synthetic fibre ropes such as polypropylene on bitts, for safety and better rope control it is recommended to:
Ваш ответ правильный:
Make two round turns fast on the leading bitt and then figure of eight on both bitts, fig. 4.32
What signal may be given by sound and by light to indicate that a vessel fails to understand the intentions or actions of another vessel, or is in doubt that sufficient action is being taken by the other to avoid collision?
Ваш ответ правильный:
Five short and rapid blasts (flashes).33
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?
Ваш ответ правильный:
Both sailing vessels are required to take avoiding action.34
When using the echo sounder in a river the soundings indicated may be incorrect, what would be the most probable cause of the error?
Ваш ответ правильный:
The density of the water.35
What would be considered the most favourable heading of a ship when launching a lifeboat?
Ваш ответ правильный:
The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.36
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?
Ваш ответ правильный:
When the ship swings to the tide the direction of swing should be controlled to avoid the anchor cables becoming wrapped round each other.37
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?
Ваш ответ правильный:
You should proceed at slow speed when passing me.38
Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
Ваш ответ правильный:
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.39
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?
Ваш ответ правильный:
A greater distance.40
With the Master on the bridge, when is the Officer of the Watch officially relieved of their responsibility for the vessel?
Ваш ответ правильный:
When the Master informs the Officer of the Watch that he is taking over the “con”.41
What are the required data inputs into most gyro compasses to reduce any possible compass error?
Ваш ответ правильный:
Latitude and Speed.42
What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?
Ваш ответ правильный:
The heeling error magnets are upside down and/or not in the correct position.43
In a canal without water flow, if a vessel was approaching a bank at an angle, what would be the probable effect on it?
Ваш ответ правильный:
The vessel’s bow is pushed away from the bank.44
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?
Правильный ответ:
The assistance of your vessel is no longer required.Ваш ответ:
The aircraft is directing a vessel towards the casualty.45
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?
Ваш ответ правильный:
A reduction in strength of 10 % to 15 %.46
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?
Ваш ответ правильный:
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.47
After passage planning with ECDIS, how should the route be checked for safety?
Ваш ответ правильный:
Using the ECDIS route checker and by visually sighting all along it.48
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?
Ваш ответ правильный:
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.49
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?
Ваш ответ правильный:
All of the possible answers.50
Which of the following figures drawn on the plane of the Meridian is correct for an observer in position Latitude 30° 00′ North; Longitude 15° 00′ West, when observing the sun on the meridian, if the sun’s Declination is 15° 00′ South?
Ваш ответ правильный:
Figure 4 is correct.51
What is the correct understanding of the term “bank effect”? If a ship was approaching the bank at an angle, what would be the effect on the ship?
Ваш ответ правильный:
The vessel’s bow is pushed away from the bank.52
What letter is represented by this flag and what is it’s meaning when displayed by a vessel in port?
Правильный ответ:
P – All persons should report on board as the vessel is about to proceed to sea.Ваш ответ:
S – I am operating astern propulsion.53
How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?
Правильный ответ:
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.Ваш ответ:
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.54
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?
Ваш ответ правильный:
The ranges of three distinctive shore objects on the radar.55
What is the correct understanding of the term “Block Coefficient” as applied to a ship?
Правильный ответ:
The comparisons of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.Ваш ответ:
The ratio of the waterplane shape of the ship to a rectangle of the same extreme dimensions.56
The ship has a single fixed pitch right-handed propeller and is going astern as illustrated. What is the most likely way the ship will react in these circumstances?
Правильный ответ:
The stern will “back” into the wind and the ship’s heading will swing to starboard.Ваш ответ:
The stern will fall off to starboard, making the heading swing to port.57
What actions should the Officer of the Watch take when the ship’s steering gear fails?
Ваш ответ правильный:
All of the suggested answers.58
What radar device assists in the detection and location of a survival craft?
Ваш ответ правильный:
SART beacon.59
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?
Ваш ответ правильный:
One prolonged blast.60
You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?
Ваш ответ правильный:
It comes from a vessel engaged in pilotage duties and it is making way through the water.61
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?
Ваш ответ правильный:
I intend to overtake you on your port side.62
If a DSC distress alert is received on board your ship, what is the first action that should be taken?
Правильный ответ:
Listen for a distress message on the appropriate radio frequency for five minutes.Ваш ответ:
Immediately answer the distress message on the correct radio frequency.63
What are the three possible types of messages seen when there is an ECDIS alert?
Ваш ответ правильный:
Either an Alarm, a Warning or a Caution.64
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?
Ваш ответ правильный:
One prolonged blast, followed by two short blasts, at intervals of not more than 2 minutes.65
What actions should be taken by the Officer of the Watch if the ship’s steering system totally fails?
Ваш ответ правильный:
All of the suggested answers.66
What can be simply rigged to assist a survival craft in keeping alongside own vessel?
Ваш ответ правильный:
A painter rigged fore and aft against the vessel’s side.67
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”?
Ваш ответ правильный:
Eight (8).68
What are the main components causing the magnetic compass to require a regular evaluation and compass correction?
Правильный ответ:
Permanent and induced magnetism in the ships structure.Ваш ответ:
Deviation and Variation.69
What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put “Full Astern”?
Ваш ответ правильный:
Varies, but can be determined from trial data.70
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?
Ваш ответ правильный:
Wire takes 95 % of the extra load. Rope takes 5 % of the extra load..71
Where can the size of the Magnetic Compass Error be found?
Ваш ответ правильный:
By taking a transit bearing of two fixed geographical positions and comparing it with the bearing of the same points on the chart.72
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?
Ваш ответ правильный:
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.73
Which is the “CENTRE LINE”, in the figure?
Ваш ответ правильный:
The Fore and aft Centreline is indicated by A, in the figure.74
The tug has been released and is all clear. As officer in charge of that operation, should this be reported and to whom?
Ваш ответ правильный:
Reported all clear to the Bridge.75
What is “AIR DRAUGHT”, in the figure?
Ваш ответ правильный:
Air draught is indicated by C, in the figure.76
What is understood by the term “Dew point” of the air?
Ваш ответ правильный:
The temperature at which water vapour in the air forms into water droplets.77
What is the correct understanding of the term “Isobar”?
Ваш ответ правильный:
An “Isobar” is a line joining places of equal pressure.78
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?
Ваш ответ правильный:
Yes, the rudder can be put to port.79
Is the location of a vessel’s standard compass binnacle critical?
Ваш ответ правильный:
Yes, for the reasons stated in all of the suggested answers.80