Le test consiste en des questions aléatoires sur un sujet sélectionné.
A DSC ‘distress alert’ message received contains the information: “GROUNDING”.This means that :
For a good connection aerial transmitting has to be earthed
For a good connection transmitting receiving has to be earthed
What is the MARPOL definition of a "solidifying substance"?
A noxious liquid substance which, in the case of a substance with a melting point of less than 20°C which is at a temperature of less than 10°C above its melting point at the time of unloading, or in the case of a substance with a melting point equal to or greater than 20°C, is at a temperature of less than 15°C above its melting point at the time of unloading.
A noxious liquid which will crystallise and eventually bond into solid form at ambient, or less than ambient temperatures unless an external heat source is applied.
A noxious liquid substance which, in the case of a substance with a melting point of less than 15°C which is at a temperature of less than 5°C above its melting point at the time of unloading, or in the case of a substance with a melting point equal to or greater than 15°C which is at a temperature of less than 10°C above its melting point at the time of unloading.
A noxious liquid substance which will cystallise and eventually bond into solid form if exposed to an external heat source.
The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of the :
booster pump being lined up in the wrong direction
booster pump failing to start
booster pump coming on the line and discharging properly
When stripping a tank, if excessive air is allowed to be drawn into the suction line, which of the following may occur?
Control of the operation will be lost and the tank will rapidly empty.
The pump will "race" and there will be a loss of suction.
The cargo pump impeller will stop rotating.
The back pressure will increase.
A Cargo Ship Equipment Certificate will be issued for :
A period not exceeding 24 months
A period not exceeding 48 months
A period not exceeding 6 months
A period not exceeding 12 months
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 stopped and making no way through the water
The target is on a constant bearing and getting closer to own ship.
The target is on a collision course with own ship.
In shallow water a ship will experience "Squat". What are the principle reasons creating the effects of squat?
There are changes in the bow and stern pressure fields associated with the ships motion.
There is an increase in the water velocity and a decrease of water pressure around the ship's hull
There is a decrease in the water velocity and an increased of water pressure around the ship's hull
There is an increased effect of gravity due to closeness of the sea-bed
Is piracy an increasing or decreasing problem?
Piracy has remained constant for the last 50 years
What is understood by the term "Balanced Rudder"?
A rudder with equal rudder area forward and aft of the turning axis, the turning axis being at the geometrical centre of the rudder area
A rudder with part of the rudder area forward of the turning axis, therefore reducing the load on the steering motor.
A rudder which is operated by two steering motors providing equal amounts of thrust to the rudder
A rudder with an additional flap attached the training edge to improve the rudder efficiency
On board a ship, how many lifebuoys can you expect to be fitted with a self-igniting light ?
Half of the total number of lifebuoys provided on board
The two lifebuoys of the quick-release system and at least one other in the vicinity of the stern
The total number of lifebuoys provided on board
Only the two life buoys of the quick-release system
What would be the main effect on a refrigeration system of insufficient cooling water flow through the condenser?
Reduced delivery pressure
Increased delivery pressure
Increased icing up of the compressor suction line.
Signals are often used by aircraft engaged in search and rescue operations to direct ships towards a casualty. This aircraft flies across your stern, rocking his wings. What is the meaning of the signal?
The aircraft is telling me he does not understand my last message.
The assistance of your vessel is no longer required.
This is part of a sequence of manoeuvres by which the aircraft will indicate a direction for my vessel to proceed in.
The aircraft is telling me he is preparing to drop supplies or personnel in the water.
An air compressor is being refitted in the engine room. The compressor and motor are coupled using a flexible coupling and are mounted on a common 'skid' which fixed to the deck with resilient mountings. Which of the statements, from the options given, relating to the alignment of the motor and compressor is true?
As long as the two coupling halves are at the same height the flexible coupling will accommodate any horizontal misalignment or difference in the gap between the coupling faces.
Shims should be fitted between the motor and compressor feet and the skid to ensure correct vertical, horizontal and parallel alignment of the coupling halves before it is bolted up.
The compressor and motor can just be placed directly on the common skid as they will probably be closely aligned anyway.
Machines using flexible couplings and resilient mountings do not need to be aligned. That is why they have flexible and resilient elements fitted.
What are the duties of an effective bridge look out?
Ensure there is always a bridge lookout on duty and only leave the lookout when given permission.
Keep a lookout for other ships; navigation lights and any other dangers which may have no lights
All of the alternatives specified
Keeping a constant observation around the ship.
Where on board ozone depleting substances are found?
In compressed air systems
Which type of profiling is used to obtain information about rival companies and their employees?
This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show changes in the voltage V(C) when the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?
Some of the valves in the system are marked ESD. What does this mean?
Temperature sensors of all types are normally mounted in a well, or pocket, when used in pipelines. Why is this done?
Allow removal of the sensor also when liquid is flowing in the pipe.
Decrease the temperature gradient between the liquid and the sensor.
Avoid electric current flowing from the sensor to the liquid.
Suppress electro-magnetic interference between liquid in the pipe and the sensor.
When work must be done on High Voltage equipment, it is vital that the equipment is earthed (grounded) after isolation procedures have been carried out. Why is this?
To provide a reference point, and so ensure accuracy of any test results.
To ensure that the equipment does not overheat due to currents circulating through earth (ground).
To ensure that no energy remains in the system and that it cannot be recharged by external influences.
To ensure that it is dead, even if there was a flaw in the isolation procedure.
What do the shapes that this vessel is displaying tell us about here?
That she is restricted in her ability to manoeuvre and making way through the water. She is seen head-on, but we do not know her length.
That she is engaged in towing, but we do not know her length, or the length of her tow.
That she is not under command, but is still making way through the water. She is seen head-on, but we do not know her length, although it is probably over 50 metres.
That she is not under command and not making way through the water. She is seen head-on, but we do not know her length.
What is the best method to use to remove heavy scale and fouling from the plates of a heat exchanger?
Use wire-brush, metal scrapers and chipping guns.
Use high-pressure cleaner with abrasive additives.
Soak the plates in a recommended cleaning solution and then use a soft brush or pressure cleaner.
What is often done prior to loading grain in cargo holds which are sweating?
Portable fans are used to dry the holds
Steelwork within the holds is covered with kraft paper
Steelwork within the hold is covered with plastic
Grain dust is blown into all parts of the hold via the grain elevator
On some large slow speed engines the crosshead guides are adjustable to allow the clearance between the crosshead shoes and the guides to be set equally. The normal arrangement is to have bolted on guide bars with shims fitted behind them. Which of the methods given in the options is the one normally used to ensure this is done correctly?
Fit an equal number of shims behind each guide bar which should result in equal clearances between the guide bars and shoes along the whole length.
Turn the engine so that the piston for the cylinder concerned is at TDC and measure the clearance along the length of each bar and shoe and fit shims to equalise the clearances.
Turn the engine so that the piston for the cylinder concerned is at BDC and measure the clearance along the length of each bar and shoe and fit shims to equalise the clearances.
Turn the engine so that the piston skirt is at the bottom of the liner. Use wedges to centralise the piston and measure the clearances along the length of each bar and fit shims to equalise the clearances.
On a Container vessel, who is responsible for the safe lashing and securing of containers?
Which certificate is issued to LPG and other liquefied gas carriers in accordance with the IGC code?
The Certificate of Fitness is issued in accordance with the IGC code
The International Load Line Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Construction Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Equipment Certificate is issued in accordance with the IGC code.
When preparing a cargo tank on a liquefied gas carrier for loading cargo following inspection of the tank a number of different steps are required. What is the first step required after such an inspection?
A deadweight tester is used to check and calibrate a pressure gauge. The tester consists of a hydraulic pump and a hydraulic chamber and balance weight system. After completing the calibration of the pressure gauge the hydraulic pressure should be relieved before removing the weights. Select, from the options given, the main reason for this requirement.
To protect the pressure gauge from a surge in pressure as the weights are removed.
To protect the hydraulic balance system from a pressure surge as the weights are removed.
To protect the piston in the hydraulic system from possible impact damage as it may reach the end of its stroke.
To protect the hydraulic pump from a pressure surge as the weights are removed.
What does the acronym MARVS stand for in relation to liquefied gas carriers?
Maximum Allowed Relief Valve Setting.
Maximum Actual Relief Valve Setting.
Minimum Allowed Relief Valve Setting.
Maximum Automatic Relief Valve Setting.
Why is the tank washing discharge outlet located below the waterline on a chemical tanker?
So that a safe and legal rate of dilution is achieved in the wake as the ship proceeds along.
So that toxic vapours are neutralised by the layer of water above the outlet.
So that tank cleaning can be carried out without anyone noticing.
So that there is minimum resistance to the flow generated by the pumps as they discharge the washings.
When connecting the loading/discharging hoses/arms prior to cargo operations, it is quite common that a reducer is required. What is the name given to the part of the ship's pipeline onto which the reducer is fitted?
Where is there a likelihood of inadequate initial design on a bulk carrier?
In a circuit diagram of a simple hydraulic circuit, which of the alternatives does the following symbol indicate?
Directional control valve.
The deaerating heater is used on
Only low-pressure boilers
The closed-type feed-water system
The open-type feed-water system
Where is the "BRIDGE", in the figure?
The Bridge is C, in the figure
The Bridge is A, in the figure
The Bridge is D, in the figure
The Bridge is B, in the figure
From the options given, select the type of cleaner that is most suitable for washing down a refrigerated cargo space.
A cleaner which contains a powerful bleaching agent.
A cleaner which has a fresh smell such as the smell of pine.
A cleaner containing a powder scouring agent.
The diode shown performs which function?
Reference the transistor to +15V.
Provide an overload route for transistor current.
Allow Op Amp to top up +15V rail.
Return inductive current to supply at switch off.
What is the purpose of a hatch cover ventilator grill on a General Cargo vessel?
To act as a strength member inside the ventilation shaft
To prevent the ventilator fans from damage
To prevent moisture from entering the hold
To prevent sparks entering the cargo hold
When a Classification Society surveyor identifies corrosion, structural defects or damage to the hull of a vessel, machinery and / or any piece of equipment which, based on the society's rules and in the opinion of the surveyor affects the ship's class, which of the following is that surveyor likely to issue?
A Notification of Deficiency.
A revised Class Notation.
A Notification of Detention.
During a ballast voyage, the fuel consumption is noticeable higher than normal and all pressures and temperatures is normal, may the reason to this be:
Long time since the last overhaul.
What will you do when all the fresh water in the survival craft is finished or about to finish?
Use sea water to keep your body wet
Start collecting rain water
Drink only 1 liter of sea water per day
How many separate means of escape are provided from each fire zone above the bulkhead deck?
You are assigned to accompany a cargo surveyor during tank inspection. A wall-wash is to take place in tank 3 centre. As the surveyor is preparing his equipment for this, you observe that a drop of sweat falls onto the funnel. What will you do?
Draw the surveyor's attention to it. Take note that he thoroughly cleans the funnel with the wall-wash solvent before collecting the laboratory sample. Report the matter to the Duty officer.
Ask the surveyor to wait in the tank alone while you take the funnel up to the accommodation and rinse it in clean, fresh water.
Immediately instruct the surveyor to leave the tank and collect a substitute set of equipment.
Nothing. The odd drop of sweat will not usually make any difference.
Why is it important to have an efficient fire patrol system on board passenger ships?
To ensure that an outbreak of fire may be prompltly detected
To control that passengers adhere to smoking regulations on board
To verify that the automatic fire-detection system is working properly
To show passengers in public areas we are on duty 24 hrs
Who is responsible to carry out Safety Familiarisation training on board
On a RoRo vessel, why is it necessary to maintain safety markings/luminous paint on pillars in ro-ro decks?
To comply with the company's standing instructions
Because it is a port state control requirement
To comply with the ship's Planned Maintenance Schedule
To prevent damage during cargo operations
The upper airway consists of:
Mouth, throat and trachea
The sign on the image indicates:
Location of boiler suit(s)
You should wear warm clothes in this area
Location of immersion suit(s)
You should wear immersion suit when working in this area
Do we find integral tanks as cargo tanks on gas carriers?
Integral tanks are normally not allowed on gas carriers other than LPG carriers
Integral tanks are allowed on all types of gas carriers
Integral tanks are normally not allowed on gas carriers if the cargo to be carryed have boiling point less than –10oC at atmospheric pressure
Integral tanks are normally allowed on gas carriers if the cargo to be carryed have temperature above –10oC
How can you arrange for safe movement of passengers on ro-ro decks?
It is easy, only drivers are allowed to stay in the car during loading and unloading.
Passengers are responsible for their own safety while moving about ro-ro decks.
Passengers should be warned of vehicle movements when entering or crossing car or vehicle decks. They should preferably keep to walkways while moving about the ship.
Passengers should stay in their cars until loading is completed. They should keep to walkways when leaving the car.
What is the approximately efficiency of the ejector?
The ejector's efficiency is between 60% and 70%.
The ejector's efficiency is between 30% and 40%.
The ejector's efficiency is between 70% and 80%.
The ejector's efficiency is between 20% and 30%.
You are going to inspect a fresh water tank together with one of the Engineers. Is it safe enough to open the manhole and enter the tank (it is only fresh water) or do you have to take extra precautions before entering?
Make sure that the tank/ enclosed space is gas free, ventilated and the oxygen content is measured. O2 content shall be 21% before entering the tank/ enclosed space
Bring a flashlight and put on safety shoes
Use a breathing apparatus if the oxygen level is below 21%
Remember to have a colleague standing by to assist you if any problems
You are alongside and the hoses have been connected for discharge. The jetty-man shouts across to you, telling you to start cargo. The Duty Officer has not yet given you any instructions to commence. What will you do?
Open the valves and start discharge as soon as possible.
Advise the jetty-man that there is a problem on board and you will notify him when you are ready.
Ignore the jetty-man. Do nothing.
Advise the Duty Officer and await further instructions. Ask the jetty-man to stand by.
The figures show a graphical symbol for a particular electronic component and a typical operating characteristic for the same component. Which component?
What makes cargo holds weather tight?
The hatch coaming compression bar
Firm contact between the hatch cover rubber seals and the hatch coaming compression bar
Steel-to-steel contact between hatch covers and coaming
Hatch cover rubber packing
"Overshoot" is an expression related to a ship's steering ability. What is the correct understanding of this expression?
It is the way a ship turns when putting the helm in a hard over position
It is how many degrees of the compass a ship continues to turn after applying counter-rudder
It is the amount a ship moves forward after the engines are stopped
It is the way a ship continues to turn when the helm is put amidships
Why is the overboard discharge outlet on a chemical tanker located below the waterline?
To prevent damage to the hull paint by any chemicals that might be blown back against the ship's side.
So that personnel on board are protected from hazardous vapours by a layer of seawater.
So that tank cleaning can be carried out without anyone noticing.
To ensure that the cargo residues pumped out during tank washing are thoroughly dissolved and distributed in the ship's wake.
During a ship to ship cargo transfer operation it is required that:
The main engine be on 1 hour notice.
None of the listed alternatives need be maintained.
An efficient engine room watch with the main engine on standby be maintained.
The main engine be on 1/2 hour notice, and no watch need be maintained in the Engine room.
Which of the following measurements will include a D/P transmitter in the control-loop
What is most important when preparing a cargo hold to receive containers?
Ensuring that stacking cones are correctly positioned
Removing all loose equipment
Checking for cracks in tank top plating in areas where stack loads are transmitted
Which of the following options is the most likely cause of high exhaust gas temperatures in all cylinders of a diesel engine?
Water in the fuel supply.
Partial blockage in the exhaust gas system.
Worn or broken piston rings.
Faulty high pressure fuel pump on one of the cylinders.
What is the correct procedure to adopt when a liquid gas fire occurs?
Start to extinguish the fire
Promptly locate the fire and raise the alarm
Who is responsible for implementation of working environment work on board?
Both master and shipping company.
What is the primary cause of fatigue damage to the hull girder?
Repeated plastic deformation of the hull
The number of repeated stress cycles
What is the correct understanding of the tem "Angle of Loll" when applied to ships stability?
The angle the ship will lie when the ship has a negative GM
The maximum angle to which the ship rolls when rolling in a seaway.
The angle the ship will lie when it has suffered a shift of cargo.
The angle of heel which the ship must reach before suffering progressive flooding through deck ventilators.
Where do you find detailed information and specific technical requirements for fire safety systems?
Fire Safety Systems Code (FSS Code)
What information is required on passengers prior to departure?
All persons on board shall be counted and details of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master
The safety officer shall count the number of passengers
It is sufficient to count the number of passengers prior to departure
Details and number of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master
A conventional reefer vessel is loading a cargo of hard frozen palletised meat with a required carriage temperature of minus 18 degree Celsius. A thermistor at the centre of the pallets indicates the temperature to be approximately minus 10 degrees Celsius during loading. What action, from the options given, should be taken under these circumstances?
Continue loading onboard and deliver air at the lowest possible temperature to cool the cargo down to the correct carriage temperature.
Continue loading onboard at minus 10 degrees Celsius and then gradually reduce the air delivery temperature to minus 18 degree Celsius.
Return the cargo ashore for pre-cooling to minus 18 degrees Celsius.
Continue loading onboard and maintain the air delivery temperature at minus 18 degrees Celsius.
What must be ensured prior to receiving iron ore?
Double bottom tank top plating must be tested for leaks
Cargo hold paintwork must be intact
Cargo hold bilge suctions and topside tank drop valves must be satisfactorily tested
Upper frame sections in the cargo holds must be inspected for cracks
On a Container vessel, what precautions should be taken when cashew nut shell liquid has spilled out of a container?
Avoid skin contact and inhalation of toxic fumes
Cool the container from as far away as possible
Approach the container wearing a chemical protection suit
Clean up the spillage wearing rubber boots and safety gloves
Which of the following is a warning sign of a faulty hydraulic hatch cover system?
The presence of dust and cargo particles around the piston gland
A fall in the hydraulic header tank level
Noisy hatch cover operations
With reference to the text in the frame: what is stated as a threat to lives at sea and the marine environment?
There is no immediate threat to the crew or environment
All old or new ships which are badly managed ships.
All ships aged between twenty and thirty years old.
Bad management and poorly maintained older ships.
A new reefer vessel is described as having 'Cargo spaces lined with stainless steel, refrigeration supplied by circulating cold air around the outside of cargo spaces, no hatches on deck and one light crane'. Which of the vessel types given in the options is the most likely type being described?
A vessel designed for the carriage of fish at very low temperatures.
A vessel designed for the carriage of specialised fruit.
A vessel designed for the carriage of orange juice in bulk.
A vessel designed for carriage of chilled meat products.
These circuits are all active filters. Which of the circuits is a high-pass filter?
Which of the options given is most likely to result in overheating of a ball bearing fitted to a pump shaft?
Running the pump at full capacity.
Partly filling the bearing with grease.
Fitting a sealed bearing that cannot be greased.
Completely filling the bearing with grease.
The International Convention for the Prevention of Pollution from Ships (MARPOL) covers detailed regulations to prevent various sources of ship generated pollution. Annex I - VI deals with regulations for the prevention/ control of pollution from:
All Harmful Substances we have onboard
Proper Pollution Prevention Training
Harmful Substances in Packaged Form, Sewage, Air Pollution, Garbage, Oil and Noxious Liquid Substances in Bulk
Oil, Noxious Liquid Substances in Bulk, Harmful Substances in Packaged Form, Sewage, Garbage and Ballast Water
When cleaning boiler burner nozzles that have just been in service the watch rating notices that the nozzle holes are partially blocked. Which of the methods given in the options is the preferred method to use in order to avoid damaging the nozzle holes?
Poke the holes clear with a welding rod which has been ground down to size.
Knock the nozzle repeatedly on the work bench to try and dislodge the blockage.
Use a standard drill bit in a hand drill to clear the blockage.
Use cleaning wires starting with a small gauge and gradually work up to the full size of the nozzle hole.
If a cargo has a litreweight 0f 1.5200 kg/l at 15 degrees Celsius and a correction factor of 0.001 per degree, what will the litreweight be at a temperature of 20 degrees Celsius?
What action should be taken, in addition to isolating the leak, if the boiler water has become contaminated with a small amount of fuel oil due to a leaking heating coil?
Do nothing, a small amount of oil in the boiler is harmless..
Dose with coagulant and give the boiler a bottom blowdown.
Dose with coagulant and continue to operate the boiler as normal.
Dose with coagulant and surface blow the boiler.
Which plan shows the position of the vertical and longitudinal centres of gravity for each cargo compartment?
Which of the listed sensors is suitable for physial displacement?
The IMO Gas Carrier code defines liquefied gases, of which LNG is an example, as those gases with absolute vapour pressure greater than 2.8 bar at a certain reference temperature. What is the reference temperature used in the definition?
Whenever there is a major bleeding, the first priority should be to:
Take the pulse of the patient
What is the purpose of "fire wires" on an oil tanker and when would they be positioned?
They are quick release wires used in port that can be automatically let go from on board if there is an emergency in the terminal
They are lines postioned at the bow and at the stern of a tanker in port, for the purpose of towing the ship off the berth in an emergency
They are wires hung overboard when at a berth or an anchorage for securing fire tenders and other emergency craft alongside in the event of a fire onboard
They are the control wires that run from the manual control points on deck to remotely start the emergency fire pump
The cargo tanks of liquefied gas carriers are usually insulated. Why is it necessary to insulate these tanks?
To protect the cargo tank from collision damage.
To minimise heat transfer to the cargo and to avoid excessively low hull temperatures.
To prevent static electricity build up in the cargo tanks.
To reduce the volume of the hold space.
What is the anticipated rolling period of a ship with a large initial Transverse Metacentric Height (GM) and would there be any associated dangers to consider?
Long slow roll and no particular hazards
Short sharp period of roll associated with breaking lashings and shifting cargo
Short period of roll, but a very stable ship and no associated dangers
Long period of roll with free surface effects at a maximum.
What are the Bosun and 2nd Mate going to do?
They are repairing the windlass
They are stand-by at the forecastle
They are waiting for the Pilot
They are going to weigh the anchor
When a fire breaks out in the accomodation, cargo holds or on deck, who is in charge of the fire fighting operations?
The first person arriving at the scene
How many rocket parachute flares are carried in each liferaft?
On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first?
Get the nearest fire extinguisher and then open the door to see what the situation is.
As most people are sleeping, call a friend and ask him to assist in putting out the fire.
Take a look inside the cabin to see what the situation is.
Activate the nearest fire alarm button and advise bridge of the location of the fire.