Le test consiste en des questions aléatoires sur un sujet sélectionné.
By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?
The pump will not draw liquid.
The pump will suffer damage
The pump needs to run faster.
You are on a vessel 10 nautical miles off the coast of Algerie, in the Mediterranean Sea. Are you allowed to dump food waste overboard?
Yes, all kind of food waste can be dumped overboard
Yes, the food waste can be dumped if it is ground so that the resulting particles can pass through a screen with 50 mm openings
No, food waste can not be dumped overboard
Yes, the food waste can be dumped if it is ground so that the resulting particles can pass through a screen with 25 mm openings
You are to turn your vessel in a narrow canal by use of two tugs with the same power. The wind varies in the range moderate/strong. Where/how would you use the tugs?
Pushing, made fast in the vessel
One tug pushing, one tug pulling
Pulling, made fast in the vessel
Pushing, not made fast in the vessel
The vessel is to anchor with Pilot onboard. Which of the suggested answers most accurately define the main duties of the Officer of the Watch on bridge?
Monitor the bridge equipment and keep the Master informed of all outputs
Assist the Master and pilot and monitor the ships position.
Follow Pilots orders and ensure the anchorage is carried out successfully
Follow the Master's orders at all times.
In the situation illustrated, what should be the power distribution of the tugs to maintain the ship sideways motion with only minor changes in the ship's heading?
Considerably more power on the aft tug than the forward tug, while monitoring the ship's gyro heading
Equal power on both tugs while monitoring the ship's gyro heading
Full power on the forward tug and the after tug ceases to push, but continuously monitor the ship's gyro heading
Considerably more power on the forward tug than the after tug, while monitoring the ship's gyro heading
According to the “Regulation and Restrictions” of the mariphone license, the mariphone:
apart from its position as indicated also be used in other places provided its call sign is at least transmitted once at the start and at the end of each transmission
may only be present at the place, as indicated in the license
may be taken off the ship temporarily, only if suitable measures are taken for the prevention of the use of the mariphone
If a seaman has to walk across a stow of cartons containing perishable foodstuffs what should he do to minimise the risk of damage to the contents? Select the most appropriate option from those given.
He should step on the middle of the cartons.
All parts of the carton are of equal strength and therefore it doesn't matter which part he steps on.
He should step on the edges of the cartons.
He should step on the corners of the cartons.
What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?
Persistent rain and very humid weather
Strong winds and heavy rain
Strong winds but with very little rain
Light winds and fair weather, sometimes fog.
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
The HV cable uses Aluminium conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable carries a smaller current and therefore requires less copper.
The HV cable uses higher quality copper conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable has a thinner wall of special insulation material.
Which of the following is a chemical commonly added to cleaning substances used to clean galley areas?
What should be observed concerning a ship's watertight integrity?
That all emergency exits on ro-ro deck are locked and secured
That the ramp is stowed position
That all water tight ramps and doors are locked and secured at sea
That the bow- and stern door are closed
The majority of medium speed main propulsion installations incorporate a reduction gearbox between the engine and the propeller shaft. Why is this arrangement usually required?
So that the engine can be more easily reversed.
So that the engine can be coupled to a controllable pitch propeller.
So that the propeller operates in a relatively efficient speed range.
So that the engine can also drive a shaft alternator.
What is the necessary protection when you are rust chipping with air tools?
Gloggles and ear protectors
Protective clothing, safety shoes, earmuffs
Gloves, goggles, earmuffs
Protective clothing, safety shoes, gloves, goggles, earmuffs.
You are in an area of restricted visibility. You hear this sound signal. What does it mean?
That there is a vessel engaged in underwater operations in the vicinity. She has divers down.
That there is a vessel aground in the vicinity.
That there is a vessel at anchor in the vicinity.
That there is a vessel in distress nearby.
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.
The temperature of the feed water for an auxiliary boiler is automatically controlled by a pneumatically actuated steam valve at the inlet to the pre-heater. It is noticed that during high demand the temperature falls by an unacceptable amount and takes a long time to return to the set temperature even though the steam supply pressure remains constant. Select from the options given the most likely cause of this.
The controller proportional band is set too wide.
The controller proportional band is set too wide and the reset time is set too long.
The controller reset time is set too long.
The control air pressure regulator is set too low.
On a RoRo vessel, what is Safe Working Load (SWL) with regard to cargo lashings?
The maximum load that can safely be applied to lashings
The minimum load that can be applied to lashings
The ultimate stress of cargo lashings
The load beyond which lashings will fail
A heavy metal concentrate bulk cargo has a moisture content of 16 and a transportable moisture limit of 18, what should the Master do?
Request additional moisture tests to be done
Seek advice from charterers and owners
Refuse to load the cargo as the moisture content is outside acceptable limits
Load the cargo as the moisture content is within acceptable limits
What pressure is present in the crankcase of a vapour compression refrigeration compressor?
The same as the discharge pressure.
The same as the atmospheric pressure.
The same as the lubricating oil pressure.
The same as the suction pressure.
A deck patrol notices that a cargo space carrying refrigerated cargo under controlled atmosphere (CA) is not padlocked shut. Select, from the options given, the main reason why such a space should be kept locked.
It is a requirement of the ship security plan that such spaces should be locked.
To prevent unauthorised entry into the space because of the hazard risk due to low temperature in the space.
To prevent unauthorised entry into the space because of the hazard risk due to the low oxygen content of the controlled atmosphere in the space.
To minimise the occurrence of pilferage of a valuable cargo.
A sudden or gradual increase of the chloride content in the freshwater cooling indicates:
Leakages from seawater coolers
Leakages from oil coolers
Low concentration of corrosion inhibitors
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning "Calling All Ships".
Cargo residues of certain chemical substances are permitted to be removed by ventilation. What criteria is applied in determining if a cargo can be cleaned in this way? (Always accepting that local port authorities may have over-riding regulations on ventilation).
That the cargo discharged has a vapour expansion coefficient of at least 1.025.
That the cargo discharged has a vapour pressure greater than 5 KPa at 20 degrees Celsius.
That the vessel's ventilation system is capable of delivering a minimum of 20 changes of atmosphere per hour within the compartment.
That the volume of the tank does not exceed 1750 cubic metres, that the maximum remaining residues are less than 75 litres and that ventilation is additionally possible directly down the pumpstack.
For what are bridge indicators required on board a ro-ro vessel?
All shell doors which, if left open, could lead to major flooding
All hinged doors in watertight bulkheads
All sliding doors in watertight bulkheads
Which function is this circuit performing?
Indicate the correct name for the part marked on the sketch:
What is a low location lighting system?
A system displaying the escape route from all cabins by light points in the ceiling, powered by battery
An illumination system for all corridors in cabin areas
A light system powered by battery or fluorescent signs mounted at deck level indicating the way to the nearest exit
An emergency illumination system that illuminates all deck areas to a minimum
Is it allowed to gas up LPG on inert gas atmosphere?
We are not allowed to gas up LPG on inert gas
We are allowed to gas up LPG on inert gas if the inert gas contain less than 5% volume oxygen
We are allowed to gas up LPG on inert gas if the charterer do not instruct the vessel to use nitrogen
We are not allowed to gas up LPG on inert gas if the inert gas contain less than 5% volume oxygen
On a Container vessel, how would you deal with a containerised scrap metal fire?
Cool the container using seawater
Allow the cargo to smoulder
Extinguish using seawater
Your ship has its main entry door from the maindeck on the starboard side, a few metres back from the front of the accommodation. It is also the closest emergency exit from the ship's offices and the crew mess-room in the event of an emergency. You are about to commence loading several grades of chemicals. There are no significant security concerns. What should happen to the door?
It can be open, provided the wind is blowing away from the accommodation.
It should be closed and locked.
It should be open in case an emergency occurs.
It should be closed, but not locked.
What has a major adverse effect on the manoeuverability of a RoRo car carrier?
The vessel's block coeffecient
What name is given to the knife used for cutting meat from a joint during service?
At what temperature would a fully refrigerated cargo of propane normally be carried on a liquefied gas carrier?
Recording the pulp temperature of fruit at all stages of the transport chain provides a valuable record of the status of the product. Which of the procedures given in the options should be adopted by a deck officer when dealing with the fruit?
After taking the pulp temperature the individual piece of fruit should be retained in the space with other specimens that have been used
After taking the pulp temperature the individual piece of fruit should be discarded as the specimen used will usually spoil rapidly.
It does not matter whether or not the specimen is left in the cargo space as the carriage temperature will preserve it.
After taking the pulp temperature the individual piece of fruit should be returned to the carton of fruit from which it was sampled
What is the requirement for the atmosphere in the hold spaces surrounding cargo tanks that require a secondary barrier when carrying LPG cargoes?
The hold spaces must be filled with cargo vapour whenever there is cargo in the cargo tanks.
The hold spaces must be kept in an inert condition at all times even when the cargo tanks are empty.
The hold spaces must be kept in an inert condition whenever there is cargo in the cargo tanks.
The hold spaces must be filled with clean dry air at all times.
What is the meaning of "stand by"?
That you shall keep on with your work.
That you are properly relieved from your duties.
That you shall stand very close to the engineer officer.
That the watch keeping personnel shall be ready for starting or manoeuvring the main engine.
What is the main fixed fire-fighting system on a car deck?
What standing instruction should be given to prevent a possible blackout on board a ro-ro vessel?
To check with the duty engineer prior to switching on motors or other machinery that take a heavy load
To check with the duty engineer prior to taking steps in correcting the vessel’s list
To use minimum deck lighting at night
To switch off lights in idle cargo holds
What does OSHA stand for?
Occupation and Safe Health Association
Overseas Sea Hazard Association
Occupational Safety and Health Administration
Occupational Safety and Health Aids
When a vessel arrives at a port to pick up a pilot and enter harbour, there should be someone required to stand by the anchor forward. How should the anchor be prepared and ready?
The brake may be insufficient to hold the anchor, so leave everything in place except the cement/covering of the chain locker
The brake securely applied, all cement/covering into the chain locker and securing arrangements from windlass removed. The guillotine can remain for removal when ready
The use of the anchor will not normally be required when going straight into port, so the anchor does not need to be prepared, but left ready for going back out to sea.
Leave the brake on securely.
Where should the vehicle belonging to a disabled person be placed?
Preferably near an elevator or a place where you have easy access to the stairways
In the after part of the car deck
As close to the bow door as possible to avoid any traffic jam during discharging
What do the letters IMDG stand for?
International Monitoring Department (Geopolitics)
Interactive Maritime Dangerous Goods.
International Marine Dangers Group.
International Maritime Dangerous Goods.
What is the purpose of the IGC code?
The purpose of the IGC code is to provide an standard for safe carriage of liquefied gases in bulk
The purpose of the IGC code is to protect the oil companies
The purpose of the IGC code is to provide an international standard for safe carriage of liquefied gases in bulk
The purpose of the IGC code is to provide safe carriage of liquefied gases in bulk
IMO publishes the IGC Code relating to LPG and other liquefied gas carriers. What does the IGC code primarily deal with?
Specifically, how gas carriers for hydrocarbon gases are designed
Specifically, the safety of personnel sailing on gas carriers.
How all liquefied gas carriers are constructed and equipped.
The most efficient way to operate any gas carrier.
How can an azimuth or bearing be indicated by signal flags?
The letter A + three numerals + the letter R or T.
The letter A + three numerals.
The letter N + three numerals.
The letter B + three numerals.
What should you keep in mind when releasing lashings?
Step aside when lashings are released
Release lashings with great care to reduce the risk of injury when tension is released
Who must make and sign the individual entry for a loading, discharging or cleaning operation in the Cargo Record Book?
The officer (or officers) in charge of that operation.
The Officer of the Watch at the commencement of that operation.
The pupman or other crewmember assigned to carry out that operation.
What is the maximum allowed filling limit given by IMO for the cargo tanks of LNG carriers?
A consignment of steel drums containing IMDG Class 8 cargo are about to be loaded in the hold of a General Cargo vessel; a number of drums are leaking slightly, what action should be taken?
The cargo consignment not be loaded at present; the Chief Officer must be informed and make final decision if the cargo is to rejected
The cargo must be stowed under deck
The drums can still be loaded provided that they are only loaded on deck
The cargo cannot be rejected and must be loaded
Which publication sets out in detail the forces that cause cargo shifting?
The Code of Safe Practice for Solid Bulk Cargoes (BC Code)
The Cargo Stowage and Security (CSS) Code
The Cargo Securing Manual (CSM)
The ship’s stability manual
Maintenance of lifeboats and davit arrangements is routine work onboard. Why should you not carry out this type of work alone?
It is boring to work alone and you should be able to chat with colleagues while working
If you need something to drink, the second person can get it for you
If the person working on the lifeboat falls over board, the second person can lower the lifeboat and prepare pick-up immediately
There might be a risk of falling even though harness and lifeline is used. A second person should always stand by to assist with tools etc. and other practical arrangements.
When people jump into the water from a ship, what should they do?
Keep their arms down at their sides.
Grab the lifejacket near the shoulder.
Take off their lifejackets.
A ship has an electrical system rated at 690 Volts. Which voltage level is this?
With a bulk ship in port, when would it be permissible to start painting over-side?
Within two hours of berthing
After obtaining permission from the port authority
Immediately after berthing
After obtaining permission from the master
What is the normal name given to the fuel oil used for the ship's main engines?
You are having a blow-by on the main engine, but due to the circumstances, it is impossible to stop and do a piston overhaul. What is the correct action to take?
Reduce speed temporarily and increase cylinder oil consumption.
Increase cylinder oil consumption.
In the circuit diagram shown the starter connects between which terminals?
Who will verify the computational results and actual ship data used by the calculation program on a vessel's stability computer?
The Classification Society.
The engineer attending the installation and initial on-site testing.
Many medium and high speed marine diesel engines have connecting rods with an obliquely (angled) split in way of the bottom end which may have serrated faces. What is the main reason that the connecting rods are manufactured with this oblique split?
It reduces the inertial loads generated during operation as the connecting rod can be made lighter.
It allows the bottom end bearing to be large but still allows the piston to be withdrawn from the top of the cylinder.
It allows larger bottom end bolts to be used without risk of fouling the bottom of the oil pan.
It gives better access to the bottom end bolts.
What is this?
A hydrostatic release unit
An antistatic release unit
Which is the most important factor in the safety awareness of the ships crew?
The safety awareness of the senior officers
The level of emergency-preparedness
The quality of emergency drills
The shipboard training provided
The typical “daylight-frequencies” for long distance transmission are located in the:
TBN - total base number from a lube oil test, indicates the:
Amount of organic acids in the oil.
Amount of contaminants in the lubricating oil.
Alkalinity of the lubricating oil.
A palletised fruit cargo is being loaded into a cargo space which will be partly empty at the completion of loading. In order to secure the cargo which of the options given is the best way to complete the stow?
With the face of the stow athwart ships (side to side across the compartment.
With the face of the stow stepped down using cartons after breaking down the last pallets.
With the face of the stow stepped across the compartment.
With the face of the stow fore and aft along the length of the compartment.
Which of these measures would you implement to prevent drugs from being smuggled onboard your ship while it’s berthed?
"Search some of the packages, spares and stores received."
Maintain restricted areas.
Check a portion of the bags and packages brought onboard.
Eliminate fore and aft deck watch at night.
When maintenance work is to be carried out on an electric motor driving a centrifugal water pump with automatic start, should you;
Ascertain from the senior watchkeeper if it is okay to start work, isolate the valves then commence work.
Set in local control, isolate the suction and delivery valves then commence work.
Isolate the suction and delivery valves then inform the electrician that you are starting work.
In conjunction with the senior watchkeeper and electrician, isolate valves, electrical supply, automatics and post 'Do not operate' signs before commencing work.
The effective stability of a tug, when assisting a vessel to manoeuvre, can be decreased by hydrodynamic interaction with the ship it is assisting. Where is the most dangerous position of the tug relative to the ship, for this adverse affect to be found?
The most dangerous position is when the tug is alongside the amidships section of the larger vessel.
The most dangerous position is where the tug has made fast the towing spring and is then moving ahead of the larger vessel.
The most dangerous position is where the tug approaches the stern of the larger vessel and enters into its associated positive pressure field.
The most dangerous position is where the tug approaches the bow rounding the forward shoulder of the larger vessel.
From where on board can you find out the different types of protection equipment regarding where placed, how much, how many etc.?
Foodstuffs which have not been cooked or prepared in any way may be described as which of the following?
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.
To Sweep the Ship in an emergency means that crewmembers are:
giving safety announcements from the bridge
sounding alarm bells from the bridge
searching for passengers in cabins or other hidden places onboard
directing passenger crowds to muster and embarkation stations
High Voltage systems rely on the installed protective equipment being able to interrupt any fault in the system. Throughout the system, the fault level has been calculated, and under no circumstances must the system be modified to exceed this fault level. What is meant by fault level?
The amount of apparent power, that would be drawn from the generating plant, when a short circuit occurs at the bus bars.
The current level flowing into a dead short to earth at any point on the ship, directly from the High Voltage system.
The amount of apparent power that could flow into any fault at any point in the electrical network.
The current level flowing into a symmetrical short circuit fault between all three phases.
Which of these statements is correct?
Steel slabs may rest directly against the ship’s frames
Steel slabs do not require dunnage
Steel slabs may be loaded within the square of the hatch only
Steel slabs must never be permitted to rest directly against any part of the ship’s structure
What are the duties of the watch-keeping engineer?
The duties of the watch-keeping engineer are to keep constant surveillance of machinery and auxiliary systems and to inspection the steering gear at least once a watch
The duties of the watch-keeping engineer are to maintain the required ship's speed
The duties of the watch-keeping engineer are to ensure that the machinery spaces are properly manned
The duties of the watch-keeping engineer are to keep constant surveillance of the steering gear and hydraulic system
If properly secured what benefits do car carriers have over other ship types regarding seaworthiness?
They are not easily damaged in heavy weather
They can pitch to very large angles without taking in water viathe ramp doors
They can roll to very large angles without taking in water
Their large reserve buoyancy prevents capsizing
Why is it preferable to use white spirit rather than paraffin to remove traces of grease during cleaning of refrigerated cargo spaces?
White spirit is more effective at removing grease than paraffin.
White spirit does not leave an oily residue or odour.
White spirit is cheaper than paraffin.
White spirit is usually more readily available.
A Ship Security Assessment is integral to the creation of your ship’s security plan.
What are twistlocks designed for?
To couple containers horizontally
To couple containers vertically
To lock containers vertically and horizontally
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
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
It is sufficient to count the number of passengers prior to departure
The circuit consists of two capacitors, C(1) = 6 µF and C(2) = 12 µF, in parallel. Calculate the equivalent C(S) of the two capacitors.
What is defined as ‘grain’, under international regulations?
What is the requirement for isolating slop tanks on combination carriers when cargoes other than liquied cargoes are carried?
In which of the following processes will the time constant be of minor importance
What is typical for a continuous control system
The output signal is equal to the input signal
The control valve will always be changing positionv
It is possible to predict the control mathematicallyIt is possible to predict the control mathematically
It is not possible to have a stable process
When operating a steam boiler burner unit what is the best method for evaluating that the correct amount of excess air is being supplied to the furnace?
The colour of the flame in the furnace.
The reading from the flue gas oxygen analyser
The length of the flame in the furnace.
The colour of the exhaust leaving the uptake.
Most perishable cargoes are presented for shipment pre-cooled to the correct carriage temperature. If the cargo is not pre-cooled or has warmed up due to the cold chain being broken it can result in increased metabolic rates. Which of the given options would be the most difficult to deal with if such a situation occurred during a sea passage?
The water produced by the cargo.
The heat produced by the cargo.
The carbon dioxide produced by the cargo.
The trace gases produced by the cargo.
What may be issued by the shipper to indicate that a vessel or her operators will not be held responsible for any damage that may arise from the carrier issuing a clean Bill of Lading, even though the Mate's receipt is marked as "unclean", such as may apply to atmospheric corrosion on steel plates that have been waiting in a port facility for some time awaiting shipment?
An addendum to the Bill of Lading.
An absolution clause in the shipping documents.
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
What is the procedure for use of the main engine room fire extinguishing system, e.g. Halon or CO2 system?
Release the Halon/CO2 upon the order of the engineer on duty.
Search the engine room, make sure all personnel is out. -Stop ventilation. -Close for all air access. -Upon approval of the Master, release the halon/CO2.
Search the engine room, make sure all personnel is out. -Stop ventilation. -Close for all air access. -Release the Halon/CO2.
Release the Halon/CO2 as soon as possible without pre warning.
How often shall each member of the crew participate in an "abandon ship"-drill?