Le test comprend 80 questions aléatoires.
Total de questions sur ce sujet : 171
Give the meaning of the following symbol:
Rescue boat with waterproof canopy.
When discussing the properties of an oil cargo, what is the “wax content”?
The percentage of paraffinic wax by volume, based on a representative sample of the crude oil.
The amount of additive in an oil product, expressed in ppm, designed to inhibit solidification at lower temperatures.
The observed volume percentage of waxy deposits found in a cargo tank after discharge in relation to the total volume of cargo previously carried.
The percentage of wax, expressed as a percentage, remaining in an oil product after distillation.
A rocket parachute flare reaches an altitude of:
Reduced capacity accompanied by vibration and noise at the suction of a centrifugal pump results from the action of vapor pockets in the fluid being pumped caused by:
What are the requirements regarding slop tank capacity on combination carriers with smooth walls (bulkheads)?
Not less than 3 % of the oil-carrying capacity of the ship.
Not less than 1 % of the oil-carrying capacity of the ship.
Not less than 1,5 % of the oil-carrying capacity of the ship.
Not less than 2 % of the oil-carrying capacity of the ship.
How can the error of the Gyro compass be determined?
By comparing the course readout on the GPS with the gyro course steered.
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.
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
The HV cable carriers a smaller current and therefore requires less copper.
The HV cable uses Aluminium conductors and therefore requires them to be a smaller cross-sectional area.
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.
Falls used in launching shall be turned end for end at an interval of not more than X months and to be renewed not later than every Y years, where the intervals are:
You are in an area of restricted visibility and hear this signal. It is repeated at two minute intervals. What does it indicate?
That there is another vessel nearby, that she is underway, but stopped and making no way through the water.
That there is another vessel nearby, but that she is at anchor.
That there are two more vessels nearby.
That there is another vessel in the vicinity and that she has just altered course to port.
A contractor is hired to install new navigation equipment onboard your ship while it’s berthed. For a period of time he’s left unsupervised and photographs schematics of the ship that he finds rolled up and stored in the corner of a nearby office. Later, from home, he hacks into the network and prints off information about the ship’s security procedures. Which of these information security measures would have prevented his unauthorized access?
Secure area, passwords, a firewall and a secure network.
Protective markings, reference checks, and passwords.
Firewall, protective markings, vetting and a secure network.
Secure area, passwords, a firewall and protective markings.
Between a complete removal and a renewing of floor polish what can you do to maintain a PVC floor surface?
By using the softest of the pads on the disk and dry scrub.
By soft machine scrubbing with red pad and a renewing of polish only where there is heavy traffic (f. i. in the middle of corridors and not the whole floor).
Apply an extra layer of polish every month.
By using soft machine scrubbing once every fortnight and wash with a solution of water and polish.
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm, connected in series. Calculate the equivalent resistance R(S) of the two resistances.
The following DSC was received (at what time received?) 27.05.1997 23:23 CALLED VHF CH70 FORMAT: DISTRESS DIST-ID: 367449000 N OF: UNDESG DISTRESS POSITION: N 52,43 E04.maj DIST-UTC: 00:00 TELECOM: G3E SIMP TEL EOS: EOS.
What contributes most to rust formation on vehicles/Ro-Ro units?
Cargo hold ventilation systems and associated ducting.
Pipes passing through cargo holds.
Hydraulic units in cargo holds.
Which is the “FORWARD BREAST LINE”, in the figure?
The forward breast line is indicated by B, in the figure.
The forward breast line is indicated by C, in the figure.
The forward breast line is indicated by D, in the figure.
The forward breast line is indicated by A, in the figure.
Indicate the correct name for the tool:
In the case when the temperature of the ambient air is equal to 10 °C and the wind is blowing at a speed of 10 m/sec the shipwrecked person must consider that the effect of air on his body is equivalent to that of an air whose temperature would be approximately:
When will a hatch cover cross-joint wedge need replacement?
When the flat spring is missing.
When the flat spring is bent.
When the flat spring is rusty.
What is the most likely reason for vibration and noise at the suction side of a centrifugal pump when it is running?
Fluid friction in the suction line.
Collapsing vapour bubbles due to cavitation.
Water hammer in the pump casing.
Pump suction valve fully open.
What could be the possible cause of an engine knocking?
Faults in injection valves, injection too early.
Too big a piston clearance, worn cylinder liner.
The gudgeon pin or big end bearing having too big a clearance.
Searchlights must be provided for night navigation in the Suez Canal. Which of the listed requirements are correct?
Vessels with bulbous bow, LPG and LNG vessels must provide their own projector.
All vessels must provide their own projector.
Only projectors hired from the Canal Mooring and Light Company are permitted.
If vessels have their own projector, an extra fee will be levied on the vessel.
According to 33 CFR 156, oil tankers trading in US waters are required to test and document the testing of cargo transfer hoses and transfer pipe system. What is the minimum requirement when testing these components?
That no leakage occurs under static liquid pressure of at least 1,5 times the maximum allowable working pressure.
That no leakage occurs under dynamic fluid pressure of less than 1,5 times the maximum allowable working pressure.
That no leakage occurs at the nominal anticipated working pressure.
That no leakage occurs under static liquid pressure of at least 1,25 times the maximum allowable working pressure.
What symptom would you think shows that the freon filter drier has become blocked?
Pressure rise before the drier.
A large temperature drop across the drier.
A hammering noise from the drier.
A hammering noise from the compressors.
What significant change to the requirements for the carriage of Vegetable Oils in tankers was introduced by the amendments to MARPOL and the IBC Code on 1st January 2007?
They must now be carried in double-hull tankers.
They must now be carried in type 2 tanks.
On a Container vessel, what determines how containers should be lashed?
Advice from shore planners.
The cargo securing manual.
The frequency 121,5 MHz is used for:
Which of this information must be included in a piracy attack alert?
Your ship’s name and call sign.
The number of crew onboard.
The number of pirates/highjackers.
The type of weapons being carried by the pirates/highjackers.
In which way may intake of poisonous material occur?
Skin penetration and skin absorption.
Why are all RoRo passengers ships divided into vertical “zones”?
Vertical zones are fire zones which can be divided from each other with fire doors. In case of fire, all fire doors in front and aft of the fire will be closed to prevent spreading of smoke/fire.
Vertical zones are separated with fire doors which will be closed automatically when the fire alarm start.
All vertical zones are separated with watertight doors, which will be closed in the case of a grounding, etc.
There is one fire team in each zone.
Diodes are widely used in rectification, or the conversion of alternating current to direct current. The sinusoidal input voltage V (in) is applied to the circuit shown. Which of the output voltages is correct?
Why shall a duly qualified officer supervise any potential polluting operation?
To inform the authorities.
What is the required pressure when testing parts of the oil transfer system (hoses, loading arms etc.) if the test is to satisfy US Coast Guard regulations?
Test pressure equal to 1,75 times the maximum allowable working pressure.
Test pressure equal to 1,25 times the maximum allowable working pressure.
Test pressure equal to 1,5 times the maximum allowable working pressure.
Test pressure equal to the maximum allowable working pressure.
What is the status and function of a Panama canal pilot?
He shall have control of the navigation and movement of the vessel.
He will take over all the responsibilities of the master on embarkation.
He will be responsible for canal crew mooring gangs and use of locomotives during lock transits.
He is an advisor to the vessel’s master.
You are inerting a cargo tank on an oil tanker, prior to gas-freeing for entry. What is the maximum permitted oxygen content in the inert gas main as required by SOLAS 1974?
Reduced capacity accompanied by vibration and noise at the suction of a centrifugal pump results from the action of vapor pockets in the fluid being pumped caused by:
Which is the “PANAMA LEAD”, in the figure?
The Panama Lead is indicated by A, in the figure.
The Panama Lead is indicated by B, in the figure.
The Panama Lead is indicated by C, in the figure.
The Panama Lead is indicated by D, in the figure.
When there is doubt about the freshness of the atmosphere in enclosed or confined spaces, what actions should be taken?
Arrangements should be made for testing of the atmosphere to ensure maintenance of 21 % oxygen and a carbon monoxide content below 50 ppm in the atmosphere of the space.
Supply filter masks to all crew working on ro-ro deck.
Ro-ro decks are always ventilated in advance of an operation.
Open both bow- and stern doors.
On a container vessel, where should a mid-bay guide be positioned?
On the tank top mid-way in 40′ guides to prevent transverse movement of 20′ containers.
On the tank top at the ends of 40′ container bays.
At the base of cell guides.
Between 20′ container bays on deck.
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
Two, and at least one of the rescue boats shall be a Fast Rescue Boat.
None providing the ship has lifeboats.
Two Fast Rescue Boats, one on each side of the ship.
When lashing general cargoes why are short lashings preferred to long ones?
Because they are more easily tightened and held in tension.
Because long lashings are more prone to vibration.
Because some of the ship’s lashing points may not be designed to hold long lashings.
Because the safe working load of lashing materials decrease with length.
What does wet washing mean?
The bottom washing starts whilst there is still a small amount of cargo in the tank.
Dry top washing and wet bottom washing.
The oil is too “wet” to use for crude oil washing.
Start the wet crude on washing on a dry bottom.
The death of a passenger occurs on board, what legal actions must be taken by the Master?
First aspect confirm death. Notify company, and next-of-kin, and if on board to be advised and comforted as may be required. Arrange to have body moved to freezer area. Notify local agents and British Consul when abroad. Entry to be made in Record of Births and Deaths.
Confirm death. Have body moved to a freezer compartment. Contact local agent and British Consul as appropriate. Complete narrative section of Official log book. Make an entry in the deck log book detailing actions taken.
Confirm death. Contact local agent and arrange to have body medi-vacced from vessel. Notify company. Complete births and deaths section of official log book.
Confirm death. Notify next-of-kin, and if on board to be comforted as may be necessary. Make an entry in the Births and Deaths section of the OLB, make entries in the narrative section of the OLB. Notify agent and British Consul when abroad. Have belongin.
What is understood by the term “take the helm”?
Take over the steering of the ship.
Take a message to another officer.
Take over heaving of a rope.
Change the place where the lookout is standing.
Can a British Consular official detain a vessel whilst in a foreign port?
Yes – any consular official can detain a vessel.
Only the most senior consular official can detain a vessel.
Only if he is also a Marine Officer, or on instruction from the MCA.
Not under any circumstances.
On a general cargo ship, where would the fire hydrants be located?
At such locations that at least two jets not emanating from the same hydrant may reach any part of the ship normally accessible to the crew while the ship is being navigated, one of these jets coming from a single length of hose (the other jet may come from two hoses joined).
At such locations that at least two jets not emanating from the same hydrant may reach any part of the ship normally accessible to the crew while the ship is being navigated, each of these jets coming from a single length of hose.
At such locations that no part of the ship normally accessible to the crew while the ship is being navigated is located more than 20 metres away from a hydrant.
At such locations that no part of the ship normally accessible to the crew while the ship is being navigated is located more than 40 metres away from a hydrant.
When carrying LNG cargoes it is useful to have information about its thermodynamic properties. What is a common source of information that can be used to obtain values for a wide range of these properties?
Material safety data sheet.
Considering the range of sensitive liquid chemicals which routinely require wall-wash prior to loading, what product is mainly used as the rinsing agent in wall-washing?
Which of the given options characterizes a 2-stroke diesel engine?
The piston always has a short skirt.
A 2-stroke engine always has 2 or more turbochargers.
A 2-stroke engine has an air inlet valve in the cylinder cover.
A 2-stroke engine completes a full cycle every revolution.
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12 H, connected in parallel. Calculate the equivalent L(S) of the two inductors:
Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?
An increased number of air changes may be required when vehicles are being loaded or unloaded, or where flammable gases or liquids are stowed in closed ro-ro spaces.
It is better to run the fans continuously instead of testing the atmosphere.
It is easier for the crew, they don’t have to think about starting and stopping of fans.
The manufacturer of the fans recommends continuous operation to reduce maintenance cost.
What types of fire extinguishers shall be used in the engine room?
Fire extinguishers equipped for powder or CO2 only.
Any fire extinguisher with a weight of less than 100 lbs.
Fire extinguishers filled with fresh water only.
Fire extinguishers of the handy-size types only.
What is the colour of the smoke signal used by life-saving stations or rescue units indicating that distress signals are observed in daylight?
Which electronic component does this graphical symbol represent?
Silicon controlled rectifier.
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.
It is important to ensure that the GPS is setup on 2 dimensional and not 3 dimensional position fixes.
Ensure that the GPS is setup on the same datum as the chart.
To make a “call-request” one should:
Select the telex in on-line position.
Select the ID of the NCS.
Select the telex in off-line position.
What action should be taken if the heat transfer capacity of a heat exchanger operating as a lubricating oil cooler is reducing?
The heat transfer surfaces should be cleaned.
Increase the cooling water pressure.
Increase the lubricating oil flowrate.
Decrease the lubricating oil flowrate.
Emergency instructions in appropriate languages shall be posted in passenger cabins. Which information shall as a minimum be included in the emergency instructions?
The method of donning life-jackets, escape routes and alarm signals.
Escape routes and alarm signals.
Where to find thermal protective aids.
A lifejacket is so constructed that a person can correctly do it within a period of:
Which class of emission is used for FEC NBDP transmissions?
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 edges 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 comers of the cartons.
He should step on the middle of the cartons.
What is the purpose of adding inhibitor to the individual cargo?
To avoid explosive (flammable) area in cargo tanks.
To avoid humidity in cargo tanks.
To assure all oxygen is removed from cargo tank and avoid chemical reaction.
To avoid radicals building up in cargo tanks.
According to the rules of GMDSS vessels are equipped with certain radio-communication devices depending on:
A coated tank holds 400 tons of sea water when filled. How many tons of liquid of liter weight 0,9300 will it hold when filled to 90 % capacity?
In the type of fluorescent lamp system shown in the illustration, the role of the starter is to perform which of the following?
To change the ballast to a high inductive current and then divert this current through the lamp.
To create a high starting current.
To pass current through the lamp heaters and then interrupt the inductive striking current.
To switch on current through the lamp and to disconnect the ballast once the lamp has started.
During mooring operations which is the safe place to be in?
Outside the colored zone.
Behind the “point of restraint” but inside the zone.
Between the “point of break” and the “point of restraint”.
Where ever you feel safe.
Cargo gear/cranes should at regular intervals be thoroughly examined and load tested by a recognised company/yard. How often should such examination/load test take place?
Which of the following spaces may be protected by a fixed carbon dioxide (CO2) fire-extinguishing system?
Machinery spaces of category A.
All the spaces mentioned.
Special category spaces of passengers ships.
When is it compulsory to use emergency wires/fire wires for mooring the vessel?
During loading/discharging of persistent/non-persistent oil.
At all terminals where tugs are available.
When requested by the terminal staff.
At the terminals in Canada and USA.
On board a DSC-call is to be made in case of an OBS. Choose the category:
In case of diesel driven fire pumps, for how long shall the fuel tank capacity allow the pump to be run at full capacity? (SOLAS II-2/4.3.3.2.3).
Feed check valves for main and auxilliary purposes are normally of the double shut off type, as shown in the diagram. What is the main function of the non-return valve?
To prevent the steam and water in the boiler from discharging out by the feed line, if a feed line fracture or a joint in the line blows.
To increase the workload for staff when overhauling the boiler.
To allow overhaul of the screw down valve when the non-return valve is shut and the boiler is steaming.
To allow fine tuning of feed water flow to the boiler.
What is the purpose of the LD (low duty) compressors on an LNG carrier?
To handle the LNG boil-off vapour for fuelling the boiler.
To discharging the LNG cargo at a slow rate.
To deliver inert gas and to aid cooling down of the cargo tanks.
To transfer cargo vapour to the shore installation during loading operations.
If oil flows out of the bowl casing drain of a solids ejecting separator what is the most likely problem?
Oil has been fed to the separator before full speed.
The flow rate is too high.
The sludge tanks is full.
Insufficient amount of bowl closing water.
Other than the official log book what other publications must be carried on board of a vessel?
ISGOTT, SOLAS, MARPOL, Bridge Team Management, OCIMF Mooring guidelines.
The official log book and crew agreement are the only two publications which must be carried on board.
Charts, nautical publications, GMDSS log, Oil Record book(s).
All technical books relevant to the machinery currently on board.
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?
Sea area A4 is in maritime radio traffic sea area:
Outside the sea areas A1, A2 and A3.
With the exception of sea areas A1, A2 and A3, within the range of Inmarsat-satellites, where continuous alarm is available.
Within VHF-radiotelephony-range of a coast station, where continuous DSC-alarm is available.
What is the main vitamin found in flour and grain products?
What is the fog signal for a vessel which is engaged in towing?
Two prolonged blasts followed by one short blast at intervals of not more than 1 minute.
One short blast, one prolonged blast and one short blast at intervals of not more than 2 minutes.
One long blast followed by two short blasts at intervals of not more than 2 minutes.
Two prolonged blasts at intervals not exceeding 2 minutes.
Is the master under obligation to do a maritime inquiry if a crewmember suffered a considerably injury onboard and died after a week on a hospital ashore?
Yes, if the seaman was at work.
Yes, because of the fatal consequence.
Yes, even if he/she did not die while onboard.
In which provision of the Act is the responsibility of the master for the observation of the provisions relating to supervision of maritime service stated?