Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 158
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 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 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.
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.
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.
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?
What are the main components causing the magnetic compass to require a regular evaluation and compass correction?
Permanent and induced magnetism in the ships structure.
The change in the position of the magnetic pole causing annual changes in the variation.
The continual changes of courses steered by the ship.
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 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:
What methods could be introduced into a passage plan for continuous monitoring of the ships position when navigating along a coastline?
The radar ranges of the coastline at all course alteration points.
Conspicuous headlands and navigational marks for taking positions.
All of the suggested answers.
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 and it is making way through the water.
It comes from a vessel engaged in pilotage duties at anchor, over 100 metres in length.
It comes from a vessel at anchor, less than 100 metres in length.
It comes from a vessel restricted in her ability to manoeuvre.
What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put “Full Astern”?
Varies, but can be determined from trial data.
If a distress signal is received on board your ship, what should be the first action that should be taken?
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.
Determine if anyone else has heard the distress signal and if your vessel is near the distress.
What is the correct understanding of the term “Block Coefficient” as applied to a ship?
The comparisons of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.
The ratio of the waterplane shape of the ship to a rectangle of the same extreme dimensions.
The restriction of a valve in a pipe to the flow of fluid through that pipe.
The coefficient of a Block and Tackle.
The Master has decided to “single up” to a spring line at each end as the last lines to let go whilst unmooring. Which of the following methods should be used to hold the lines, whilst waiting for the order to “let go”?
The line should be turned up on the bitts, fig. 1.
The eye of the lines should be put on the bitts, fig. 2.
The line should be held on a stopper ready for immediate release, fig. 4.
The line should be kept on the warping drum of a deck winch, fig. 3.
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.
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.
There will be very little effect between the two ships as they pass.
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.
What is “AIR DRAUGHT”, in the figure?
Air draught is indicated by C, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by B, 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 starting his engine and resuming his passage.
That the vessel is altering his course to starboard.
That the vessel is picking up his pilot.
What are the two parts of the magnetic compass error?
The latitude and longitude.
Permanent and induced magnetism.
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.
Display the “Not under Command” signal and switch off the normal steaming lights.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Keep a good lookout for other ships.
Who is ultimately responsible for the voyage plan?
The Officer of the Watch (OOW) on duty.
The Second Officer as the official Navigation officer.
The ship owner will provide overall parameters within which the ship must follow.
Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
The collision regulations are based on ship courses through the water.
True motion does not provide the collision risk of other ships.
The true vector can never give an indication of collision risk with another ship.
The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.
What is understood by the term “Dew point” of the air?
The temperature at which condensation 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.
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, check the ships position and keep a good lookout.
Display the anchor signal, patrol the ship frequency and check the anchor chain for dragging.
Display anchor signal and keep a good lookout of other ships in the area.
Display the anchor signal and ensure the ship swings the same way at each change of tide.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
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 actions should the Officer of the Watch take when the ship’s steering gear fails?
All of the suggested answers.
Request the engine room to check the steering gear.
Call the Master and advise him of the situation.
Display the NUC signal and consider stopping the engines.
When navigating along a coastline what should be considered the most accurate method of navigating?
Passing close to navigational buoys.
Bearings of navigational shore marks such as lighthouses.
Use of radar ranges and bearings.
What is the colour and characteristic of a “towing light”, as defined in the International Regulations for Preventing Collisions at Sea?
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.
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.
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.
Expected prevailing wind and weather.
Courses to steer; distance off dangers; parallel index lines; expected currents; prevailing winds; distance between alteration points.
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”?
What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
Allowance for the ships speed.
The distance between the pulse Transmitter and Receiver.
What does this signal hoist mean?
I require immediate assistance.
Do you require assistance?
I require medical assistance.
What do the shapes that this vessel is displaying tell us about her?
That she is not under command.
That she is constrained by her draught.
That she is engaged in towing.
That she is restricted in her ability to manoeuvre.
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?
It is more than 50 metres but less than 200 metres.
It is less than 200 metres.
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.
Display the “Not under Command” signal and switch off the normal steaming lights.
Plot the direction and rate of drift and predict the ships position for the period while the ship is “Not Under Command”.
Keep a good lookout for other ships.
The Second Officer, when on watch on the bridge, is often referred to as the OOW. What does OOW actually stand for?
On official watchkeeping.
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?
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.
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.
What is correct UTC in this example? Approx. Pos: N49° 51′ W35° 23′, zone +2, Local Time 0900.
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.
Add the 5° to the bearings.
The error should be “High” or “Low” and therefore more information is required.
What is the probable cause of an error in position of the ship obtained from the GPS system?
Incorrect height of the antenna.
Abnormal sun spot activity causing unusual radiation effects.
A three dimensional instead of a two dimensional position output.
All of the suggested answers.
What is “AIR DRAUGHT”, in the figure?
Air draught is indicated by C, in the figure.
Air draught is indicated by A, in the figure.
Air draught is indicated by D, in the figure.
Air draught is indicated by B, in the figure.
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.
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.
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.
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 underway. I am the stand-on vessel and will maintain my course and speed under rule 17.
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.
Which is the “CENTRE LINE”, in the figure?
The Fore and aft Centreline is indicated by A, in the figure.
The Fore and aft Centreline is indicated by D, 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.
This vessel is sighted ahead and slightly to port. What is her situation? What will you do?
This vessel is aground. I will navigate with extreme caution given the nature of the hazard.
This is a vessel engaged in fishing vessel, with her nets fast on a obstruction. I will keep out of the way by rule 18 of the International Collision Regulations.
This is a vessel aground. She appears to have been headed to starboard of my track and I will therefore alter course to port, passing under her stern.
This is a vessel not under command at anchor.
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.
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.
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”.
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:
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.
Strain on the fairleads and rollers in use in excess of their Safe Working Load.
Damage to the winch by distorting the shaft.
When should voyage planning be done?
Prior to leaving the berth.
During the pilotage when leaving the berth.
Before the pilot is leaves the vessel at the departure port.
Before the vessel completes the previous passage.
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 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.
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.
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?
What is the situation of this vessel?
This vessel is not under command, but is making way through the water.
This vessel is not under command and stopped in the water.
This is a vessel constrained by her draft.
What is the purpose of a fire wire?
A wire for pulling burning ships off the pier.
A wire for pulling fire-hoses up to the top bridge.
A wire for handling fire buckets.
A wire for securing the Fire Tug alongside a burning ship.
What can be used to reduce the effect of the state of sea-water?
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?
How will the ship behave if it experiences a complete loss of power (blackout) in the situation illustrated?
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.
The wind will push the vessel sideways, but the heading will not change.
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 not to exist and I will maintain my course and speed. I will continue to monitor the situation.
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.
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 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.
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?
Yes, the lift force will be dramatically reduced 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.
No, the lift force is unaffected by the speed of the propeller.
Yes, the lift or turning force will be reduced to about 50 % of the original lift force when the engines are stopped.
How can the effects of Squat be minimized, when a ship is proceeding in shallow water?
Maintain a slow speed just sufficient to maintain steerage.
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.
Decrease the speed and keep this ship to the centre of the channel where the water is probably deepest.
Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
The Oxford Concise Dictionary.
The (ISC) Bridge Procedures Guide.
Standard Marine Navigational Vocabulary.
What are the required data inputs into most gyro compasses to reduce any possible compass error?
Maximum helm angle and rolling period.
All of the data in the suggested answers.
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.
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.
There will be very little effect between the two ships as they pass.
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 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 where the amount of positive transverse stability (GM) will vary with the direction of the ship’s head.
A ship which will maintain its course unless large rudder angles are applied.
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 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 stopped and making no way through the water.
The target is on a collision course with own ship.
When plotting a position, where should the Officer of the Watch select as the ships position, when three gyro compass bearings intercept as a triangle (Cocked Hat) and not as a single point?
At the point nearest to the danger, if any.
At the point nearest the course line drawn on the chart.
At the point furthest away from any danger.
At the centre of the triangle.
What does this flag mean?
I have a diver down; keep well clear at slow speed.
My vessel is stopped and making no way through the water.
I wish to communicate with you.
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 call the Master.
Sound the General Alarm and plot the ships position.
Stop engines and immediately request “Full Astern”.
Stop engines and tell the engine room to switch over to high suctions.
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?
If your vessel is fitted with wires on self-stowing “split drum” winches, the advantage of having these split drum winches is:
All the listed alternatives.
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.
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?
Abnormal ranges of VHF RT and Second Trace Returns on the radar.
The GPS may give errors of position because of interference of incoming signals from the satellites.
The bearings obtained from the Directional Finder (DF) will not be as accurate as normal.
The radar will be show abnormal sea clutter as the pulse is trapped by the inversion.
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 intend to overtake you on your port side.
I am operating astern propulsion.
I am faster than you. Get out of the way.
I intend to overtake you on your starboard side.
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 starting his engine and resuming his passage.
That the vessel is altering his course to starboard.
That the vessel is picking up his pilot.
What sound signal shall be used on ship’s whistle when there is a man overboard?
3 long blasts repeatedly.
6 long blasts repeatedly.
5 long blasts repeatedly.
4 long blasts repeatedly.
Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?
The collision regulations are based on ship courses through the water.
True motion does not provide the collision risk of other ships.
The true vector can never give an indication of collision risk with another ship.
The Relative Motion display and relative vectors is the only display to use for anti-collision purposes.
The ship has a single fixed pitch right-handed propeller and is going astern as illustrated. What is the most likely way the ship will react in these circumstances?
The stern will “back” into the wind and the ship’s heading will swing to starboard.
The bow will “seek” the wind and the ship will swing to port.
The ship will go straight astern and the heading will remain approximately the same.
The stern will fall off to starboard, making the heading swing to port.
When using the echo sounder in a river the soundings indicated may be incorrect, what would be the most probable cause of the error?
The density of the water.
There should be no error with a properly working echo sounder.
The strength of the tide and current in the river.
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 about 1/6 of the ship’s length from the bow.
At about 1/6 of the ship’s length from the stern.
At a position near the stern of the ship.
When should gangway nets be rigged?
Whenever the gangway is rigged.
Between sunset and sunrise.
Whenever the gangway is regarded as unsafe.
When it is deemed necessary by the Master of the Chief Officer.
What is important to check when transferring a position from the GPS output to a paper chart?
Any necessary corrections are applied to convert between the GPS datum and the chart datum.
Ensure that the chart has been corrected up to date.
Ensure that the GPS is setup on the same datum as the chart.
It is important to ensure that the GPS is setup on 2 dimensional and not 3 dimensional position fixes.
Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?
The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
The Oxford Concise Dictionary.
The (ISC) Bridge Procedures Guide.
Standard Marine Navigational Vocabulary.
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?
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
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.
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.
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 asking other officers and practicing with the use of the equipment.
The certificate of competency will ensure the officer has suitable competence in operating the bridge equipment.
By following the standard company Induction procedures for a bridge watchkeeping officer.
By using the equipment on regular watchkeeping duties.
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.
Astern on the engines will allow Transverse Thrust to continue the swing.
By applying the rudder hard over to starboard and going ahead on the engines.
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.