Which of the following parameters does an explosimeter measure?
The TLV-TWA in the ambient air
The percentage of the L.E.L. in the ambient air
The TLV-STEL in the ambient air
The percentage of flammable fumes in the ambient air
Which one of the following combustible materials involves a " class A " fire ?
Proteinic foams have the feature of being?
Of high expansion, not easily contaminated by hydrocarbons
Of low expansion, not easily contaminated by hydrocarbons
Of high expansion, made of tense-active compounds
Of low expansion, viscous and solid, easily contaminated by hydrocarbons
After smoking cigarettes they should be disposed of as follows:
Dropped into a waste bin.
Dropped over the lee side only so that it cannot blow back on board
Dropped over the side only if you are certain they are extinguished.
Disposed of in an ashtray and ensuring that it is extinguished.
In which compartments are halogenated hydrocarbons not allowed as fire-extinguishing media? (SOLAS II-2/5.3.1)
Cargo holds for passenger cars and other empty vehicles
A vessel where the engine personnel are in charge of all technical installations on board are due for a voyage to a cold climate area. Are any special precautions to be implemented with regard to fireline/pumps and use of same?
Implement special routines for starting fire pumps (e.g. local start/stop operation) to avoid the pumps are started due by a mistake, resulting in filling up the system unnecessarily.
All the mentioned alternatives.
Instruct the personnel in routines to prepare the fireline system, e.g. closing all branches and the consequences of not draining the system after use.
Drain all firelines in areas that may be exposed to freezing temperature.
What is the main advantage of a positive pressure breathing apparatus?
It is less complicated and cheaper than a breathing apparatus of the demand type
It ensures a constant supply of air
The positive pressure makes it easier to breathe when working hard
If the face mask has a leak toxic fumes/smoke would still not enter the mask
"A" Class divisions in ships are constructed so that they are capable of preventing the passage of smoke and flame to the end of a standard fire test held for how many minutes?
What are the main priorities of the leader of the fire fighting teams?
Rescuing of life, fighting the fire, limitation of the fire and secure the retreat
Fighting the fire, communicate with the fire brigade and arrange the lifeboats to evacuate the ship
Start the fire pump, inform other ships, call the local fire brigade, arrange transport to shore
Start the emergency fire pump, fighting the fire, call the local fire brigade, arrange transport to shore
*When should a crew member joining a ship for the first time be given some training and instructions in the use of the ship's fire-fighting appliances ?
As soon as possible but not later than 24 hours after he joins the ship
As soon as possible but not later than 2 weeks after he joins the ship
As soon as possible but not later than 2 days after he joins the ship
What alarm signal must be sounded by the alarm bells in case of fire?
The signal which is stated in the muster list
One long blast followed by seven short blasts
The log-in of an Inmarsat-C installation is important:
to inform the LES, that one is available for messages offered
to inform the NCS that one is available for messages offered
to inform the addressee, that one is available for messages offered
With the DSC format specifier geographical area call besides a reference position the number of the full degree difference in longitudo and latitude must be fed in:
westerly and northerly direction
southerly and easterly direction
easterly and northerly direction
With the squelch mode on the VHF:
another channel is chosen
undesirable noise is suppressed
The sound level of the telephone in the tele-microphone on the panel of e.g. an MF/HF radio-telephony installation is adjusted with:
“Fading” can partially be compensated by:
How many digits are there on a MMSI number?
Which of the following is not a system for broadcasting MSI?
Give the meaning of the following symbol
Manually operated call point
Give the meaning of the following symbol
How many, minimum lines of positions are needed to decide a position using the decca system?
Who is responsible for the number and the position of any tugs to be used during a mooring operation?
The Master, with consideration of the advice of the pilot
It will be only the wind speed that will determine the required number of tugs and how they are used.
The Port Authority will dictate the tug requirements and their use within the port limits
The Pilot is fully responsible for the number and use of tugs within the port area
The ship is berthed in a steady offshore beam wind of 30 knots which suddenly increases to 60 knots. What will be the change of force exerted on the ship driving it off the jetty?
The force will be Doubled
The force will be Tripled
The force will be Quadrupled
The force will be Quintupled
If your vessel is fitted with wires on self-stowing 'split drum' winches, the advantage of having these split drum winches is:
Increased brake holding capacity due to the ability to keep the paid out wire in a single layer on the drum
All the listed alternatives
Less chance of the wire being jammed in the reel
You are duty officer on "A" and you are observing "B" on your starboard side. "A" is a heavy loaded tanker, while the other vessel "B" is in ballast. You would like to increase the CPA and reduce the speed to stop your vessel. You are going into the chart room to check the position. The other vessel has engine failure and stops the engine. Suddenly the two vessels are colliding, how can this happen?
It is impossible, since there is a change in the bearing
It is possible since the loaded vessel stops faster than the ballasted vessel
It is possible since the ballasted vessel stops faster than the loaded vessel
It is possible as both vessels will stop at the same rate
Your vessel is transitting the Panama Canal. Which manning level is applicable?
Manning level as per statutory requirements + 10% more to handle mooring equipment.
Manning level as per (statutory requirements) masters discretion
A reduced crew is acceptable since the Panama Canal authorities are supplying transit crew.
Sufficiently manned in officers and crew to permit safe handling of vessel.
Your vessel is moving in Panama Canal waters. When must the master be on the bridge?
When entering or leaving a lock, passing through Gaillard cut, berthing & unberthing, anchoring or heaving anchor.
When entering or leaving a lock only.
When his qualified representative is present.
Which of the following types/sizes of vessels in international trade do not have to be fitted with a radiotelephone station?
Passenger ships carrying less than 36 passengers
Cargo ships of 300 - 1600 tons gross
Cargo ships below 300 tons gross
Passenger ships of less than 100 tons gross
The Inmarsat Maritime Communications Manual contains tables of:
radio telex frequencies of coast stations
Which wave length applies to a frequency of 150 MHz?
Define the class of emission F1B :
Radiotelephony - Single sideband suppressed carrier
Radiotelex and DSC - Frequency shift keying of sub-carrier with error correction
Radiotelephony - Frequency modulation
Radiotelex and DSC - Frequency shift keying of carrier with error correction
Which of the following are SARSAT COSPAS EPIRB frequencies :
Which of the following is the correct minimum carriage requirement for a ship of more than 300 gross tons and operating in area A2:
1VHF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
1VHF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 1 INMARSAT A,B or C – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
1MF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB
1VHF RT + DSC+ DSC watch receiver – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
*Which one of the following items has to be included in an abandon ship drill?
Launching and recovery of a survival craft
Starting and operating radio life-saving appliances
lowering of at least one lifeboat after any necessary preparation for launching
Manoeuvring the lifeboat in the water
One of the checks during the annual Class survey of the UMS functions is focusing on cleanliness of the engine room. What is the reason for such a check ?
To reduce the general risk of fire in an unmanned engine room.
To have the engine room looking tidy.
To prevent risk of pollution.
To avoid frequent alarms.
During test and/or maintenance work of the CO2 system affecting the release system, precautions to ensure that the gas is not released into the engine room due to a mistake are to be ensured. What precautions should be taken?
No special precautions necessary.
Arrange a watchman in the CO2 central.
Check the main valve for a potential leakage.
The main supply line to be blanked off prior to the work.
Which one of the listed requirements for passenger ships regarding personal life-saving appliances do not correspond to present regulations?
All lifejackets shall be fitted with a whistle, a light and a smoke signal
Ro-ro passenger ships shall carry at least 2 lifebuoys provided with self-igniting lights an self-activating smoke signals
All lifejackets shall be fitted with reflex, a whistle and a light
The 5% extra lifejackets carried on board have to be stowed in conspicuous places on deck or at the muster stations?
Indicate the correct name for the tool on the sketch:
A number of substances are carried as cargoes on liquefied gas carriers. Of those given in the options, which is the most reactive, and therefore least compatible, with other liquefied gas cargoes?
Which type of profiling is used to obtain information about rival companies and their employees?
Who is responsible for the development of the Ship Security Plan?
The Port Facility Security Officer
The Classification Society.
The Company Security Officer
The Ship Security Officer
What is the purpose of the cylinder head safety valve?
To adjust the cylinder pressure to a safe working pressure.
To relieve excessive high pressure in the cylinder to protect the engine from being damaged.
A valve for safety stop (emergency) of the engine.
For indication of engine being overloaded.
At what temperature would you expect to carry a fully refrigerated cargo of butane?
A General Cargo vessel is to load 200 tonnes of cargo on deck at No 1 Hatch; what are the main stability changes that will occur ?
The draught forward will increase, the trim will change and the metacentric height (GM) will probably decrease
The draught forward will increase, the trim will change and the metacentric height (GM) will probably increase
The draught forward will decrease, the trim will change and the metacentric height (GM) will probably decrease
The draught forward will increase, the trim will change by the stern and the metacentric height (GM) will probably remain constant
What information should be displayed on a Fumigated Container?
The date of manufacture of the container
The proper name of the fumigant and the date it was applied
The trade name of the fumigant and the date it was applied
The last container inspection date
How are the membrane cargo containment systems that are frequently used on LNG carriers supported?
The membrane system is fully self supporting.
The membrane system is supported directly by the inner hull through support brackets.
The membrane system is supported by the inner hull through the insulation.
The membrane system is formed with corrugations which gives sufficient support.
Select the tool, from the options given, which would be used to produce accurately sized bolt holes in a steel flange?
What initial simple action can be taken to reduce the oxygen content of boiler water?
Increase the boiler pressure.
Raise the feed water temperature.
Lower the feed water temperature.
On a Container vessel, if there are isolated stacks of containers at bay 12, off-centre at bay 04 and at the extremity of bay 06, which of these stacks will require wind lashings?
Only the containers at bay 12
What is the purpose of the air distributor in a diesel engine air start system?
To ensure the air consumption from each of the main air receivers is equally distributed.
To ensure that the automatic valve in the air start system opens and closes at the correct time.
To ensure that the start air is distributed equally to the each of the engine cylinders.
To ensure the cylinder air start valves operate in the correct sequence and for the correct period.
Consider a vessel with a 6 cylinder main diesel engine operating with one cylinder out of operation. What would you expect to be the approximate maximum reduced engine load to allow safe emergency operation in this condition?
Approximately 70 % of MCR
Approximately 30% of MCR.
Approximately 90 % of MCR
Approximately 50 % of MCR
MARPOL Annex VI and IMO MSC Circ 585 "Standards for Vapour Emission Control Systems" require that P/V valves in such a system on an oil tanker should relieve the pressure or vacuum once they reach specified levels in a cargo tank. The design is approved by the administration, but what are the usual pressure and vacuum levels required to activate the P/V valves?
Pressure 7 psi (0.048 bar) Vacuum: 1 psi (0.069 bar)
Pressure: 3.2 psi (0.22 bar) Vacuum: 1 psi (0.069 bar)
Pressure: 1 psi (0.069 bar) Vacuum: 0.5 psi (0.034 bar)
Pressure: 0.5 psi (0.034 bar) Vacuum: 0.2 psi (0.014 bar)
Where onboard an LNG carrier is perlite most likely to be found?
As part of the bunker spill prevention equipment.
As part of the cargo spill prevention equipment.
As part of the fire extinguishing system for the cargo area.
As part of the insulation of the cargo containment system.
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.
An expansion process along a turbine venturi is ofthen recognized as if no heat transfer out of the system is occuring What is the correct term for this?
What does the IMSBC Code emphasise with reference to the exposure of personal to the dust created when carrying some bulk cargoes?
The restricted loading of certain cargoes which may be excessively dusty
A high standard of personal hygiene
The responsibility of the Master to ensure that staff are wearing the correct clothing
The code does not make any reference to this hazard
During inspection of a medium speed diesel engine piston of the composite type it is found that the steel crown is loose at its connection to the alloy skirt. Further inspection reveals damage to the surfaces and evidence of metal particles where the two parts are connected. Select, from the options given, the likely cause of this type of damage.
Fatigue due to excess compression at the joint between the components.
Crushing due to over tightening of the piston crown retaining bolts.
Shear of the metal surfaces due to excessive load on the engine.
Fretting due to loss of compression at the joint between the components.
After discharge of any refrigerated cargo a thorough inspection of the vessel should be carried out before presenting the vessel for loading the next cargo. Amongst the reasons for this is to ensure that any traces of or residues from the previous cargo are removed. This is particularly so if a fruit or meat cargo is to be loaded after a fish cargo has been carried. Select, from the options given, the main reason for this requirement.
Fish is usually carried frozen and there may be some damage to the insulation.
Fish can be oily and may leave an oily residue in the cargo space.
Fish is strong smelling and the odour may contaminate the next cargo.
Ventilating with fresh air may only remove the odour temporarily and it will build up again if residues are present.
In a crisis, which crew behaviours are most reassuring to passengers?
keeping up with safety knowledge
enthusiasm, confidence, hospitality
enthusiasm, confidence, decisiveness
What is the purpose of the Ship Security Plan?
Outline the organizational structure for the ship.
Protect your ship from risks posed by security threats or incidents.
Outline specific measures for your ship to move from security level 1 to 2 and from 2 to 3.
Detail the duties of shipboard personnel assigned security responsibilities.
What is the purpose of an automatic trip system onboard, and how does this function?
Automatic trip is to avoid tanks being cooled too much, the trip function is often initialised by a float switch or a temperature switch.
Automatic trip is to avoid vacuum to be generated in cargo tanks.
Automatic trip is to avoid over pressurising in cargo tanks and other pressurised vessels, the trip function is often initialised by a float switch.
Automatic trip is to avoid tanks and pressurised vessels becoming overloaded, the trip function is often initialised by a float switch.
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
In what kind of atmosphere should tank washing be carried out onboard vessels with inert-gas system?
Steamed to a humidity of at least 75%
After an electric fan have been blowing fresh air into the tank for a minimum time of one hour.
After the bottom has been covered with salt water.
Inerted to less than 8% oxygen(IMO).
The figures show a graphical symbol for a particular electronic component and a typical operating characteristic for the same component. Which component?
How can the ship’s master prove that a vessel is British?
By showing survey certificates issued by Lloyds Register in London
By showing the ship-s register
By showing a Certificate of Equivalent Competency issued by the MCA
What term is applied to the running of a number of cargo pumps together to discharge a homogeneous cargo from multiple tanks simultaneously up a common discharge line?
A general cargo ship is discharging and smoke is reported coming from a hold which is not being worked at present; what action must be taken ?
Sound general alarm, call shore fire services and check number of persons on board
Enter space to access problem
Boundary cool adjacent spaces
Open hatch cover and attack with fire hoses
During sea passage how would one know if gasoline vapours were escaping from vehicles/ro-ro units?
By using oxygen meters in the vehicle/ro-ro decks
By using carbon monoxide meters in the vehicle/ro-ro decks
By using flammable gas detectors in the vehicle/ro-ro decks
Check the items that can be a possible threat
"Piracy, Hijacking and Smuggling"
Cargo tampering and Stowaways
When ballasting double-bottom tanks with sea water on a bulk carrier, which of the following should be avoided?
Tanks not to be over flowed out of air pipes onto deck
Ballasting all tanks together including fore peak tank (FP) and after peak (AP) tank.
Tanks to be sounded regularly during ballasting
Tanks to be filled in order given in Chief Officer's ballast plan
With the exception of some citrus fruits and bananas, fruit is usually pre-cooled to the required carriage temperature prior to loading on a reefer vessel. In order to protect the cold chain, and to maintain the temperature of the fruit, a minimum exposure time to ambient conditions during loading is necessary. What action should the deck officers take during loading to achieve this minimum exposure time?
Close the hatches and apply cooling to the cargo already loaded during any break in cargo operations that exceed 30 minutes.
Request that the stevedores work faster to minimise loading time.
Close the hatches for any break in cargo operations that exceed 60 minutes.
Close the hatches and apply cooling to the cargo already loaded during any overnight break in cargo operations.
The Ziegler-Nichols method is used in control engineering when setting up the system. Which of the system components given in the options would this method be applied to during initial set up?
Sensing unit to set the range.
Valve positioner to optimise speed of operation.
PID controller for tuning.
Valve and actuator to set the span of travel.
This circuit shown is a logic gate with two 'high' input signals, A and B, and one output signal Q. Which type of logic function does the gate provide?
There are a number of standard reliquefaction plants commonly fitted onboard LPG and other liquefied gas carriers. What type of reliquefaction plant is required for a cargo of Ethylene Oxide?
Single-stage direct cycle.
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
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?
Would there ever be the need for two lookouts on the Bridge watch?
Yes, possibly when there is dense fog and heavy traffic.
Every night there should be two lookouts, one on each bridge wing.
No, one lookout is sufficient even in fog
During UMS rounds, a duty engineer notices that the fuel oil overflow observation glass is full of oil. Should he:
Stop all F.O. transfers immediately, and inform the CE.
None of the listed alternatives.
Make a sounding of the F.O. overflow tank and decide if there is enough capacity to leave it until the following morning.
Call a motorman and have him sound the FO overflow tank periodically during the night.
These circuits are all active filters. Which of the circuits is a high-pass filter?
What are the symptoms that would indicate the filter/drier unit in a refrigeration system was becoming blocked?
A large temperature drop across the drier with possible icing of the casing.
Pressure drop before the driver.
A hammering noise from the drier.
The drier casing temperature increases.
Where will you normally find the ship's documents including Crew Passports and CDC on board a vessel?
What letter is represented by this flag and what is it's meaning when displayed by a vessel in port?
P - All persons should report on board as the vessel is about to proceed to sea.
W - All persons should report on board as the vessel is about to proceed to sea.
S - I am operating astern propulsion.
Under international regulations what must be ensured when discharging a bulk cargo?
The vessel must not be excessively trimmed
The method of unloading must not damage the ship's structure
The terminal representative must remain on board at all times
The stevedoring foreman must remain on board at all times
When trying to reverse a large slow speed diesel engine in the astern direction it cannot be turned on air even though it will start in the ahead direction. What is the likely cause of this problem?
One of the cylinder air start valves has stuck open.
The reversing servo for the fuel pumps has stuck in the ahead position.
The start is blocked because the air distributor has not moved to the astern position.
The automatic valve for the air start system has jammed shut.
Which plan should be consulted if it is found that two separate tanks are filling when it was intended for only one to be filled?
What special requirements applies to fire alarm signalling systems in passenger ships
Remote control of fire doors and reactivation of ventilation
Same requirements for Fire alarm systems applies to all ships
Centralized in a continuously manned control station with remote control of fire doors, Indication of open or closed fire doors
Fail safe, Centralized in a continuously manned control station, Remote control of fire doors, Indication of open or closed fire doors, Reactivation of ventilation, Detector status, Back up powered
High-level alarms are always switched on during loading operations. Is it necessary to have them switched on during discharge operations on a chemical tanker?
The only way a high level alarm will activate during discharge is as the set level is passed as the tank empties. It is therefore of no value to have them switched on.
No, the alarms are only of value and significance for an increasing liquid level such as is found during loading.
Yes, there is still a risk of overflow if several tanks are connected to a common line system.
It is wholly the choice of the Officer of the Watch whether he uses high level alarms during a discharge operation.
How does low expansion foam act as an extinguishing agent when dealing with oil fires?
The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire.
By smothering and also providing some cooling