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
To what pressure will a new length of cargo hose be tested by a manufacturer prior to its supply to a vessel for service onboard a chemical tanker?
Not more than one and a half times its specified maximum working pressure, but not less than two-fifths of its bursting pressure.
Not less than one and a half times its nominal bursting pressure, but not more than four-fifths of its specified maximum working pressure.
2 times its designed working pressure, but not more than three-fifths of its nominal bursting pressure.
Not less than one and a half times its specified maximum working pressure, but not more than two-fifths of its bursting pressure.
In discussing the properties of chemical cargoes, what is the "Odor Threshold" of a product?
The smallest concentration, expressed in parts per million by volume in air, that can be detected by smell by most people.
The maximum concentration of a vapour that can be tolerated without permanent damage to the nasalmembranes.
The temperature at which the vapour pressure a substance is greater than the prevailing atmospheric pressure and vapour is then released into the environment.
The average concentration of a substance to which a worker may be repeatedly exposed for a normal 8 hour working day, 40 days a week, without adverse health effects.
Rule 12 of the International Collision Regulations prescribes the action to be taken by a sailing vessel when meeting another sailing vessel. This depends on the direction of the wind relative to each vessel. In the situation shown here, which sailing vessel (A or B) must keep out of the way of the other?
Sailing vessel B must keep out of the way of sailing vessel A.
Sailing vessel A must keep out of the way of sailing vessel B.
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
Both sailing vessels are required to take avoiding action.
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
Experience has shown that the most successful method of double banking (when no tugs used) is:
With the larger vessel stopped and drifting in the water, fig. 4.
With the smaller vessel at anchor, fig. 3.
With both vessels underway, fig. 1.
With the larger vessel at anchor, fig. 2.
The OOW is expected to double-check the whole voyage plan?
How many two-way VHFs is required for ships over 500 brutto?
One per lifeboat and one spare
On board passenger ships an abandon ship drill must be performed:
How can the error of the Gyro compass be determined?
By using any of the methods in the suggested answers
By taking the radar bearing of an object when the radar is on a compass stabilised mode and comparing it with the bearing on the chart of the same object
By taking a transit bearing with the gyro compass of two prominent fixed shore objects and comparing it with the bearing of the same objects on the chart
By comparing the course readout on the GPS with the gyro course steered.
A heat exchanger of the tube and shell type is used for cooling lubricating oil with seawater as the secondary fluid. Which of the options would indicate that the tube stack was becoming fouled (scaled or coked) rather than blocked?
An increased temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and an increase in the temperature difference between the lubricating oil inlet and outlet.
An increase in the temperature difference between the seawater inlet and outlet and a reduced temperature difference between the lubricating oil inlet and outlet.
Under the IMDG code what class is assigned to a Fumigated Container?
Why are handrails in ro-ro decks painted?
To prevent personal injury
To facilitate cargo operations during the hours of darkness
To highlight deck walkways
To prevent contact with vehicles
The data logger on a reefer vessel normally records temperatures for air delivery, air return and cargo pulp. How would the air delivery and return temperatures be expected to vary during the first few days of carrying a cargo of citrus fruit which had not been pre-cooled before loading?
The difference between the two temperatures would steadily increase.
The difference between the two temperatures would remain constant.
The two temperatures would remain constant
The difference between the two temperatures would steadily reduce.
The DoS addresses the responsibility for the security of the water around the ship and the verification of increased threat levels.
A slow speed diesel engine is fitted with a slow turning facility. How would the slow turning normally be set to operate?
It should be manually operated before the normal start sequence following an engine stopped period of more than 10 minutes.
It should automatically operate before the normal start sequence following an engine stopped period of more than 20 to 30 minutes when manoeuvring.
It should automatically operate before every normal start sequence.
It should automatically operate every 20 minutes when the engine is stopped during manoeuvring.
To control bleeding, a tourniquet should be applied:
Only when all other means have failed
Whenever it is possible to stop bleeding
Only on Radio medical advice
Whenever you have to transport the casualty
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm , connected in series. Calculate the equivalent resistance R(S) .
What is ‘Allowable Use Strength’?
The strength of cargo lashing materials allowed by the classification society
The tension to which cargo lashings should be set up
The safe working load of cargo lashing materials
The breaking strength of cargo lashing materials
What is the purpose of the girders in the tank?
They transfer all the cargo forces acting on the plating.
They transfer all sea forces acting on plating.
They support the stiffeners.
They support the stiffeners and also take up some of the sea force.
What are the main elements in a damage control plan?
Instructions and procedures for reporting damage to the Company
Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.
Arrangements for correction of list due to flooding within 15 minutes
A damage control plan is the same as an emergency plan
When describing equipment used in oil tanker operations, what does the abbreviation "VECS" stand for?
Vapour Emission Control System.
Vapour Emission Calibration System.
Vapour Ejection Control System.
Vapour Emission Control Standard.
Which type of cargo pump works by the cargo being drawn into the pump at high speed and being thown outwards against the pump casing by rotating impellers?
The end covers for a heat exchanger are held in place by a number of brass studs and nuts. Which of the tools given in the options is best suited for removal and tightening of the nuts?
Adjustable shifting spanner
Following replacement of a diesel alternator governor the machine is test run on load. It is found that as the load is gradually increased the voltage and the frequency gradually fall to an unacceptable level. The governor is a mechanical hydraulic type. Select from the options given the correct adjustment to make to correct the situation.
The governor load limit should be increased.
The governor droop should be increased.
The governor droop should be reduced.
The governor load limit should be reduced.
What is the time limit for abandonment of passenger ships?
30 minutes from the time the abandon ship signal is given
2 hours from the time the abandon ship signal is given
15 minutes from the time the abandon ship signal is given
What name is given to the process of discharging water from a designated slop tank whiler minimising the disturbance of the oil layer on top, with the objective of removing as much water as possible?
On a container vessel, what should be referred to when taking action to deal with a cargo spillage under-deck?
The ship's Contingency plan
The Dangerous Cargo Manifest
The ship's Safety Management System (SMS)
On a RoRo vessel, what are sea sloshing forces proportional to?
The overall breadth of deck cargoes
The maximum breadth of under-deck cargoes
The maximum height of under-deck cargoes
The overall height of deck cargoes
A Bulk Vessel is to load a cargo of grain; pre loading calculations show that IMO stability criteria cannot be achieved; the vessel should do which of the following?
The grain surfaces in some or all of the cargo spaces must be secured
The cargo can still be loaded
An exemption certificate must be applied for
The vessel will be unable to load the cargo
On a Container vessel, what facilitates the lashing of containers in the fourth and fifth tiers?
Long lashing rods with extensions
Many large 2 stroke marine diesel engines are equipped with an auxiliary scavenge air blower. What is the purpose of this equipment?
To provide combustion air at start up, during manouevring and low load running when the turbocharger delivery is insufficient.
To assist the main turbochargers in supplying combustion air when on full load.
To help cool the engine after it has been stopped.
To allow full load running when the main turbocharger is defective..
Despite shipping lines having hulls coloured in the company livery colours e.g. black, blue, green, etc. refrigerated containers are now usually painted white. Which of the options given is the main reason for this?
White paint is cheaper than coloured paint.
White painted containers reduce the load on the refrigeration plant.
White coloured containers are more aesthetically pleasing.
White is synonymous with hygiene and cleanliness.
A conventional reefer vessel operating a Controlled Atmosphere (CA) is approaching the port of discharge in Northern Europe. Which is the most suitable action to take from the options given?
Turn off the CA plant just prior to the start of discharge operations.
Continue to apply CA throughout the discharge to maintain the condition of the cargo.
Continue to apply CA until the hatches are opened to maintain the condition of the cargo.
Turn off the CA plant and thoroughly ventilate the cargo spaces under CA with fresh air just prior to arrival.
On the figure 4 possible definitions of the term "BOW/STEM" are given. Which one is the correct one?
Bow/stem is given by B on the figure
Bow/stem is given by A on the figure
Bow/stem is given by D on the figure
Bow/stem is given by C on the figure
A piston rod retaining nut needs to be tightened during maintenance on the main engine. Which of the given methods should be used to ensure it does not come loose in service?
Tighten it 10% more than the manufacturer's recommendation using a torque wrench.
Tighten it to the manufacturer's recommendations using a torque wrench.
Tighten it as tight as possible using a spanner and extension pipe.
Tighten it as tight as possible using a flogging spanner and a hammer.
Is there any requirements regarding double bottom for large passenger ships?
Yes, in ships of 76 m in length and longer, a double bottom shall be fitted amidships, and extend to the fore and aft not less that ? of the ship length.
No, a double bottom is not required
Yes, in ship of 76 m in length and upwards, a double bottom shall be fitted amidships, and shall extend to the fore and after peak bulkheads, or as near thereto as practicable.
Yes, a double bottom shall be fitted amidship
How would you ventilate your cargo holds when sailing from cold climate to hot climate?
No ventilation should be done?
Ventilate at intervals during the night?
Ventilate at intervals during the day?
Some oil cargoes contain high levels of a chemical called Hydrogen Sulphide, or H2S. The atmosphere on deck may be monitored if you are loading such a cargo and an alarm may sound if the level of H2S vapour around the deck becomes unsafe. Each company and terminal will have procedures, but, in general, which of the following describes the procedure that you, as a deck watchman, should follow if this happens?
Remain exactly where you are but report the alarm to the Duty officer immediately.
Put on any facemask with which you have been issued and make your way immediately into the accommodation, sealing all doors behind you. Make your way to the Cargo Control Room and report the situation.
Go to the ship's side and attract the attention of the nearest terminal operator. Inform him of the alarm and request that he attends to it immediately.
Put on any Emergency Escape Breathing Device with which you have been issued, leave the area immediately, moving in an upwind direction, report the situation to the Cargo Control Room.
Some process control systems may several inputs and controlled variables. In this context what is meant by split-range?
Several controllers are connected to the same control-valve
Several control-valves are connected to the same controller
Several control-loops for the same range
When is it necessary to seal a CO2 injection line into the designated ballast hold?
When testing the CO2 system
Prior to ballasting the hold
When carrying non-inflammable cargoes
When handling cargoes that emit dust
What is the principal ingredient in Risotto?
What is the situation of this vessel?
This vessel is not under command, but is making way through the water.
This is a vessel constrained by her draft.
This vessel is not under command and stopped in the water.
What is the recommended range for the pH-value for the water in a diesel engine cooling system engine cooling water be maintained?
After water-washing the turbocharger exhaust side it starts to vibrate even though it was operating normally prior to the washing procedure. What is the most likely cause of this problem?
The foundation bolts for the turbocharger are loose.
The rotor blades are damaged or the blades are not properly cleaned
Water drain for washing system is blocked allowing water to build up in the turbine casing.
The turbocharger bearings are worn out.
The use of combustible material is restricted in the accommodation spaces in order to:
Reduce cost of construction
Prevent occurrence of fire and explosion
Contain and suppress fire and explosion in the compartment of origin
Why are pure RoRo car carriers considered as being high risk design vessels where their stability is concerned.
Because they have few internal bulkheads
Because of the relatively small clearance between waterline and stern ramp sill when fully loaded
Because they can easily capsize if there is ingress of water or ballast operations are not handled correctly
Which of the following is the minimum acceptable value of insulation resistance for High Voltage equipment?
On a General Cargo Vessel, what should a cargo lashing plan comply with?
The cargo securing manual
What roll amplitude is generally used by classification societies in calculating rolling forces?
How many crews are required to be trained and regularly drilled in all aspects of fast rescue boats in various conditions, including righting after capsizing?
When you are calibrating an instrument what is the most common first step in the procedure (consult the manual)
Adjustment of Zero-point and span
Fluid flow is measured using a pneumatic differential pressure transmitter and is indicated on a direct reading instrument. The indicator is reading zero even though fluid is flowing through the system. When the flow rate changes the indicator initially registers a reading but then gradually returns to zero. From the options given select the probable cause of this condition.
The connection to the differential pressure transmitter low pressure bellows is blocked.
Diaphragm in the differential pressure transmitter is perforated.
The I/P converter is faulted.
The connection to the differential pressure transmitter high pressure bellows is blocked.
Who is responsible for the safe keeping of the ship's documents?
On a Container vessel, what do the letters 'PP' mean within the IMDG Code?
What would the Chief Officer require prior to the vessel's departure from the berth?
Prior to the vessel's departure from the berth, the Chief Officer would require the anchor to be thoroughly secured
Prior to the vessel's departure from the berth, the Chief Officer would require the crew to prepare for the voyage
Prior to the vessel's departure from the berth, the Chief Officer would require the Bo's'un to oil the moving parts of the windlass
Prior to the vessel's departure from the berth, the Chief Officer would require the windlass to be covered
From which locations is it normally possible to close watertight doors?
A watertight door can only be closed by a control adjacent to the door
Watertight doors can be closed locally and also a remote control station within the accommodation
Watertight doors can be closed adjacent to the door and remotely from bridge and also one emergency remote control station
Watertight doors can be closed from the bridge and an alarm sounds at the door
The upper airway consists of:
Mouth, throat and trachea
What is the maximum period between the sampling/testing of the moisture content of a solid bulk cargo and the loading of that cargo into a bulk carrier?
It must always be conducted immediately before loading
A test is not required each time of loading
Testing must be carried out on a random sampling basis.
A maximum for seven (7) days, when there has been no change in the moisture content due to rain or snow
On a RoRo vessel, why should chipping and painting not be done on a loaded car deck
because there is not enough space to work with the cargo in the way
To avoid damage to the cars or their paint work
because you cant run the ventilation and the fumes will overcome the crew
For a cargo compartment on a chemical tanker to meet the definition and requirements of a "pressure tank", what must its design pressure be?
Greater than 0.7 bar gauge.
What type of search pattern is recommended in the IAMSAR Manual as most effective when the location of the search object is known within relatively close limits?
During maintenance work on a fuel tank the engine room ratings are removing scale in preparation for re-coating. One of the ratings suddenly notices the smell of fumes even though the atmosphere had been satisfactorily tested before the work started. What action should the ratings take?
Stop work until the smell disappears and then carry on removing the scale.
Leave the tank immediately and have the atmosphere retested.
Ask for another fan to be switched on to increase the ventilation in the tank.
Put on breathing apparatus and carry on with the task.
The cargo containment system for some LNG carriers is in the form of spherical tanks. What is the IMO classification for this type of tank?
Spherical self-supporting, type "A” tanks.
Spherical non-self-supporting, type "C" tanks.
Spherical tanks with full secondary barrier.
Spherical self-supporting, type "B" tanks.
What is the normal name given to the fuel oil used for the ship's main engines?
When you are taking out provisions for the next day, you notice that the temperature in the meat freezer is only -8° C. How would you react to such a situation?
Report it immediately to the Chief Engineer
Move all the meat to the fish room
Check it over the next 3-4 days and, if necessary, report it after that
Ignore it - it's not your responsibility
What is the meaning of "Make Fast"?
Make Fast means to secure a rope
Make Fast means to avoid all meals
Make Fast means to coil a rope
Make Fast means to act very quickly
Which of the options given is the most likely reason for a drop in pressure at the charge air manifold of a diesel engine?
Air filter to turbocharger fouled or obstructed.
Charge air cooler fouled on waterside
Air passageways or ports to the engine cylinders partly blocked due to fouling.
What is the advantage of a transmitter with a narrow measurement range?
Do not need any calibration
Better linearity and increased accuracy
What is IMO's requirement to maximum temperature for fully pressurised cargo tanks at ambient temperature?
You enter a high voltage switchroom and smell rotten eggs. What may this indicate?
Problems with a vacuum circuit breaker
Arcing at badly coupled bus bars
Problems with a gas (SF6) circuit breaker
What will happen when you start a centrifugal pump with the delivery valve closed?
The starting load on the motor will cause overload.
The pump will lose suction.
The delivery pressure will be large causing the relief valve to open.
The starting load on the motor will be minimum.
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
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, except that vessels which can safely navigate outside the main channel need not comply with this message.
Vessels may proceed - two-way traffic.
A vessel may proceed only when she has received specific orders to do so.
Vessels may proceed - one-way traffic.
What is Inert gas ?
It is a gas containing insufficient oxygen to support combustion of hydrocarbons
It is a gas containing only nitrogen
It is a gas containing less than 21 % by volume oxygen
It is a gas containing no oxygen
You have just loaded a cargo of Toluene and are about to clear the lines into the ship. What particular hazard must you be aware of with this product?
It is a carcinogen but has a relatively high odor threshold value. Personnel may not readily detect any vapour that is ejected through the vent risers and should therefore use filter masks while this operation is in progress.
It is a static accumulator and settling time must be allowed before gauging.
It has a relatively high freezing point and additional line blowing will be required to ensure the vessel's lines are completely clear.
It has a relatively low density. Tanks which are close to maximum filling are especially liable to overflow during the line clearing operation unless the flow of blowing medium is strictly controlled.
Transportation of oil at sea can be divided in two groups, which?
Crude oil and refined products.
Crude oil and black oils.
Crude oil and lubricating oil.
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
What ingredient, made from durum wheat, is commonly used as an alternative to rice with north-African dishes?
Personnel in a high voltage switchroom smell ozone. This is likely to indicate which of the following?
Vacuum circuit breaker problems
Arcing at badly connected bus bars
Air circuit breaker problems
Which plan shows the position of the vertical and longitudinal centres of gravity for each cargo compartment?
What should be done if the surface of the loading ramp is oily?
Immediately clean the oil-affected area(s)
Allow cargo operations to continue in the usual manner
Stop cargo operations and inform the master
Wash the oil-affected area(s) using a fire hose
Where will you find instructions on how reduce or control an oil spill during bunker operations on a General Cargo vessel?
In the company's safety manual
In the Shipboard Oil Pollution Emergency Plan (SOPEP)
Fast rescue boats construction should be:
Rigid, inflated or rigid / inflated
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.
This is a parallel L-C circuit with a curve showing frequency- impedance characteristics. Which of the formulae A to D will you utilize for determining the resonant frequency f?
f o = 1 / (2*Pi* sqrt (L/C))
fo = 1 / (Pi*sqrt (1 - LC))
Which of the following is not relevant when handing over a cargo watch?
Prevailing weather conditions
Failure or stoppage of cargo handling equipment
Status of ballasting or de-ballasting operations where applicable
Status of cargo loading or discharge operations
What is one of the main features of the cylinder lubricating oil used in large 2 stroke marine diesel engines which normally operate on heavy fuel oil?
It is a pure mineral oil without any special additives.
It is neutral with a pH value of 7.
What is the meaning of this symbol ?
Survival craft pyrotecnic distress signals
What class of fire involves liquids?