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Головна Онлайн-тести CES Gas tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
Онлайн-тестування: Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
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Тест складається із випадкових питань з обраної теми.
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What is a hydrostatic release unit?
A unit for inflating the liferaft
A unit which automatically releases all securing when abandoning the vessel
A unit which automatically releases the liferaft/lifeboat at a depth of approx 4 metres
An important part connected to the sea anchor
Which class of fire involves gas?
Class C fire
Class D fire
Class A fire
Class B fire
*A bulkhead of the "A" class must:
Be suitably stiffened
Be constructed of steel or other equivalent material
Comply with all the requirements listed here
Prevent passage of smoke and flame till the end of a one-hour standard fire test
*Sanitary-, ballast-, bilge- or general service pumps may be accepted as fire pumps provided:
None of these pumps may be accepted as fire pump
They are not normally used for pumping oil
They have a capacity of at least 20 m3/h
They are fitted with automatic start connected to the fire alarm
What is the most common fixed fire fighting extinguishing system fitted in an engine room?
A chemical powder system
An halogenated hydrocarbon system
A pressure water-spraying system
A carbon dioxide (CO2) system
*What quantity of service fuel must be available for a diesel driven emergency pump before it is necessary to use any reserve fuel?
To allow at least 12 hours of operation
To allow at least 3 hours of operation
To allow at least 24 hours of operation
To allow at least 6 hour of operation
What is the minimum number of fire control plans that should be permanently stored in a prominently marked weathertight enclosure outside the deckhouse for the assistance of shoreside fire fighting personnel?
At least one
At least three
At least two
Not required providing one set is available inside the accommodation
The category of a DSC-call determines is:
how the rest of the call is to be composed
Don't know
the degree of priority
for whom the message is destined
The following information must be given on the SART:
Date of replacement of the battries
The date of replacement of the hydrostatic release unit
The name of the operator
The MMSI number sent
By the term “Stand by” the operator of a coast-station means that one should:
Don't know
Wait until the coast-station calls again
Switch back to the calling channel
Give the position of the ship
What is the function of an OSC (OPA-90)
Incident Commander
Officer of Spill Command
Spill management
On the Scene Co-ordinator
Name three international conventions that cover the international shipping trades?
The three international conventions that cover the shipping trade is SOLAS 74/78, STCW 78/95 and MARPOL 73/78
The three international conventions that cover the shipping trade is SOLAS 74, STCW 78 and MARPOL 73
The three international conventions that cover the shipping trade is SOLAS 74, SOLAS 78 and STCW 78
There isn’t any international conventions that cover the shipping trade
It is important that a compress is done correctly. One of the alternative signs , after completed compress bandage, shows that the bandage may be to tight. Which one?
Swelling above the bandage.
Blue colour of the skin above the bandage.
Heartbeat increase and a dizzy feeling.
Swelling below the bandage and heavy pain.
What is definition on clean water?
Water with less than 15 ppm vitiation of oil
There isn’t any definition on clean water
Water with less than 45 ppm vitiation of oil
Water with less than 1 % vitiation of oil
How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?
Select Relative motion display and make Own Ship vector pass through the middle of the entrance to the channel.
Select ground stabilised true motion display and alter course so that own ships true vector passes through the middle of the entrance to the channel.
Select True ground stabilised vectors and make the vectors from both buoys at the entrance to the channel pass either side of the centre of the screen.
Acquire the buoy at the entrance to the channel and on relative vector display alter course to make the vector of the buoy pass directly through the centre of the screen.
You are Sen.Off.Deck on vessel "A" and your cargo is iron ore. The vessel is in narrow waters and you have been in a collision with vessel "B" causing your vessel to take in water. How will you act to save the vessel and the cargo?
Call main office for help
Navigate the vessel on ground as soon as possible
Call tug boats for help
Try to discharge the incoming water
When no RU (Rescue Unit), but a number of merchant vessels are participating in a search and rescue operation, one of the vessels should be designated as CSS ( Co- ordinator Surface Search), Which practice should be followed in designation of the CSS? CSS to be appointed by:
First vessel arriving on the scene.
RCC (Rescue Co-ordination Centre).
Mutual agreement between participating vessels.
RSC (Rescue Sub-Centre)
You are drifting with a loaded VLCC in open sea. You have observed the direction and rate of drift. Can you do anything to change the direction and rate of drift?
We will just have to wait and see
We can apply the rudder although we have no engine power
No, there is nothing I can do about that
We can trim the ship by stern as much as possible. This will most likely change the direction and rate of drift.
How do we define the location of the "pivot point"?
The point on the ship where you have maximum sideways motion in a turn
The point on the ship where the sideways motion forward is at maximum
The point on the ship where the forward motion is at maximum
The point where the sideways motion of the ship`s centreline is zero
The ship has completed a 360 degree turn at full speed in deep water. The ship is now to repeat the turn at full speed in shallow water. What will be the difference in the turning circle diameter?
The turning diameter will be smaller in shallow water
The turning diameter will be the same for all depths
The turning diameter will be increased in shallow water
It will be the same provided the UKC is 25%-50%
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.
*On board a ship, how many lifebuoys is required to be fitted with a buoyant lifeline ?
At least one lifebouy with buoyant lifeline on each side of the ship
Half of the total number of lifebuoys provided on board
Only the two lifebuoys of the quick-release system
The total number of lifebuoys provided on board
Which one of the listed requirements regarding the general emergency alarm system do not correspond to present regulations? The general emergency alarm system shall:
be capable of operation from fire stations aboard the ship
be able of sounding the emergency alarm signal by the ships whistle or siren, and additionally on electrically operated bells or claxons
be audible through all accommodation and crew working spaces
have electric alarm bells (or claxons) powered from the ship-s main and emergency sources of electric power
A person wearing an adult lifejacket shall be able:
to swim a short distance through the water and board a survival craft
to dive half a meter under the water surface
to jump from any height into the water without being injured or damaging the lifejacket
to swim half a mile distance and board a survival craft
Which one of the given requirements regarding survival craft muster and embarkation arrangements corresponds to the present SOLAS regulations?
Muster and embarkation stations shall be readily accessible from accommondation and work areas.
Searchlights to be provided at the launching station.
Davit-launched survival craft muster and embarkation stations shall not be arranged to enable stretchers to be placed in survival craft.
Muster and embarkation stations are to be arranged separately to improve working conditions.
What is the minimum number of immersion suits that are required to be provided for each open lifeboat under SOLAS rules?
One per person
3
6
Nil
*The Master is responsible that all crew participate in monthly emergency drills. If 25% of the crew - or more - has not participated in such drill during the last month, what is the time limit to conduct such a drill after the vessel has left a port?
Within 24 hrs
Within 30 hrs
Within 12 hrs
Within 48 hrs
The Training Manual shall contain instructions and information on the life-saving appliances and the best method of survival. The training manual shall contain detailed explanations of crew duties in relation to emergency situations. Which of the following tasks or duties shall be included in the manual according to present regulations?
Correct donning of the protective clothing.
Correct use of on-board communication equipment.
Correct donning of life-jackets.
The use of oars and sails for survival crafts.
During mooring operations which is the safe place to be in?
Outside the colored zone.
Where ever you feel safe.
Behind the "point of restraint" but inside the zone.
Between the "point of break" and the "point of restraint".
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.
You are the Officer on Watch on an oil tanker during a discharging operation. An alarm on the Inert Gas Plant indicates that no inert gas is being supplied to replace the discharging cargo. What will you do?
Continue discharging with the cargo pumps running at minimum speed.
Slow down and relieve the vacuum by opening the tanks lids.
Immediately stop the discharging.
Activate the inert fans and blow fresh air into the cargo tanks.
If a vessel is rolling heavily in a seaway and has negative GM and a small Angle of Loll, describe how the vessel will roll.
Roll unevenly flopping over between the Angle of Loll on each side.
Roll evenly either side of the upright position.
Roll evenly each side of the Angle of Loll.
Roll between the Angle of Loll on each side.
An air compressor is being refitted in the engine room. The compressor and motor are coupled using a flexible coupling and are mounted on a common 'skid' which fixed to the deck with resilient mountings. Which of the statements, from the options given, relating to the alignment of the motor and compressor is true?
As long as the two coupling halves are at the same height the flexible coupling will accommodate any horizontal misalignment or difference in the gap between the coupling faces.
Shims should be fitted between the motor and compressor feet and the skid to ensure correct vertical, horizontal and parallel alignment of the coupling halves before it is bolted up.
The compressor and motor can just be placed directly on the common skid as they will probably be closely aligned anyway.
Machines using flexible couplings and resilient mountings do not need to be aligned. That is why they have flexible and resilient elements fitted.
What is the minimum number of independently driven fire pumps that must be provided on passenger ships of 4000 tons gross tonnage and upwards?
5
2
4
3
Why is it necessary to have an effective ballast water management plan which includes provision for changing out ballast in open water rather than discharging ballast in coastal waters?
To allow ballast tank inspections to be carried out during ballast passage.
To keep the ballast water fresh in the ballast tanks during long voyages.
To avoid the introduction of non-indigenous species of marine life from one area to another.
To ensure that ballast tanks are always pressed up during a ballast voyage to avoid free surface effects.
Which is the lee side of a ship?
The lee side is the side facing the wind
The lee side is abaft the accommodation
The lee side is the side facing away from the wind
The lee side is forward of the accommodation
Is the location of the Compass Binnacle critical?
Yes, for the reasons stated in all of the suggested answers
Yes, it should be on the fore and aft centreline of the ship
Yes, it should be away from all electrical power cables
Yes, it should be sited on a non-metallic base if possible.
Which device does this graphical symbol illustrate?
Inverter
Rectifier
Pressure to current converter.
Differential pressure transmitter
Where do ships encounter pirates?
Ships encounter pirates off the Indian coastline
Ships encounter pirates off West Africa
Ships encounter pirates in the North Pacific ocean
Ships encounter pirates in the South Atlantic ocean
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
When should a vessel’s hatch pontoons not be lifted?
When the SWL of the gantry crane is not clearly marked
When the vessel is listed
When lighting conditions are poor
When the pontoons are to be lifted by a floating crane
Most medium and high speed engines for marine use operate on the four stroke cycle and use direct admission of compressed air into the cylinders for starting purposes. During which part of the cycle does start air admission normally take place?
The first part of the air induction stroke.
The latter part of the expansion (power) stroke.
The latter part of the expansion stroke.
The first part of the expansion (power) stroke.
When an air compressor is going to be started it is important that the compressor is started with the "blow off" valves open. Why?
To ensure that the electric motor will not have a too low torque during start.
To ensure that we do not have any water assembly in the cylinders when the compressor start.
To be sure that all pressure valves in the HP line to the starting bottle are open.
To ensure that the compressor does not have any back pressure due to a leak suction valve in stage one.
What are the ideal conditions required to satisfactorily conduct an Inclining Experiment?
All derricks lowered and no moving items on deck and in store rooms
Moorings slack, head wind, minimum people on board
All of the suggested answers
Minimum ballast and bunkers on board and all tanks pressed up.
According to most industry standards, what percentage of oxygen by volume is required for entry into an enclosed space without a breathing apparatus?
11%
17%
21%
15%
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.
Is it required that the PA-system (Public Address) is connected to a back-up power sypply?
No, the crew will inform the passengers in case of any black out or power failure
Yes, only if the voyage is more than 12 hours
Yes, the public address system shall be connected to the emergency source of power
No
What is the purpose of a draught survey before and after loading on a Bulk Carrier?
The calculate the stability of the vessel
To calculate the deadweight of the vessel
To ascertain the actual weight of cargo loaded
To calculate light displacement of the vessel
This graphical symbol is a logic gate. Which gate?
OR
AND
NAND
NOR
Which of the following food types are good sources of polyunsaturated and monosaturated fatty acids?
Meat products, such as pies, re-formed joints and burgers
Fish, nuts and vegetables
Sugar, chocolate and pectin
Full fat dairy products
What is normally meant by the term 'flammable range' in relation to liquefied gas cargoes carried at sea?
It is the maximum distance from a flammable mixture of the gas that an ignition source could be to still cause the mixture to ignite.
Range between the minimum and maximum concentrations of gas in air which form a flammable mixture.
It is the minimum distance from a burning mixture that other objects or personnel need to be to avoid being burnt.
It is the vertical height that the flames of the burning gas would reach in still air.
How frequently should the PA-system (Public Address) be tested?
Every day
Every year
Every second year
Every week
What does the Chief Mate want the OS to do?
He wants the OS to turn the switch to start, just to be sure
He wants the OS to show him the switch identical to the one the 2nd Mate showed him
He wants the OS to show him where the switch that changes between automatic, manual, and emergency steering is
He wants the OS to show him how to handle the wheel
Where shall you be able to activate the ship security alert system on board ro-ro passenger ships?
Navigation bridge
Captain's- and Chief Officer's office
Captain's office
From the navigation bridge and in at least one other location
A general cargo vessel is loading to summer loadline marks; where should be the final level of water ?
The top of the winter mark
The mid point between the summer and the tropical mark
The bottom of the summer loadline mark
The top of the summer loadline mark
You are to load a cargo of Cyclohexanol to tanks 2, 3 and 4 centre and 2 and 4 wing tanks. The lines to these tanks are all connected at the manifold with flexible hoses and are all capable of being isolated with the exception of 2 centre, which has therefore been designated as the last tank to load. What will you do with the other tanks as they complete loading?
Close only the tank loading valves, so that pressure remains constant around the pipeline system and flexible hoses. Continue to monitor the cargo levels in the finished tanks to ensure that the high-level alarms are not activated as the ship's trim changes.
Close only the corresponding manifold cross-over valves as the tanks finish, so that the pressure in the lines equalises with the pressures in the tanks. Re-check the ullages at the end of loading as they will have changed as the trim of the ship has changed.
Close the tank loading valves, then close the appropriate manifold cross-over valves. After a few minutes, re-open the tank loading valves and leave them like this until cargo operations are completed, to ensure they drain fully. Re-check the ullages at the end of loading and then close the tank loading valves.
Close the appropriate manifold cross-over valves and tank loading valves as each tank finishes. Continue to monitor the cargo levels in the finished tanks to ensure that the valves are not passing.
What must be accessible at all times whilst loading and stowing ro-ro cargoes?
Fixed cargo lashing points
Fire-fighting equipment
Ventilator trunking
The vessel's bracket connections to ro-ro decks
Which of these steps (in shut-down procedure) shall be executed last?
Shut down of inert gas blower
Close the gas pressure control valve
Close the flue gas uptake
Open ventilation valve to atmosphere
When is the Officer of the Watch officially relieved of his responsibilities of being in charge of the watch?
The Officer of the Watch remains in charge of the watch for the full watch, when the vessel is deep sea
The Master and the Officer of the Watch share the responsibility when they are both on the bridge together.
When the Master informs the Officer of the Watch that he is taking over the "con" (watch responsibilities)
When the Master enters the bridge
Why is it important to have an efficient fire patrol system on board passenger ships?
To ensure that an outbreak of fire may be prompltly detected
To control that passengers adhere to smoking regulations on board
To verify that the automatic fire-detection system is working properly
To show passengers in public areas we are on duty 24 hrs
Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?
Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
Place the sensor in a test tank of oil fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Place the sensor in a test tank of water fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Fit a spare temperature gauge and see if the readings are the same.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
50% extra
10% extra
25% extra
5% extra
Why is an automatic slow turning feature included in the start air system of many large 2 stroke diesel engines?
To avoid damage during start of the engine in case water or other liquid has gathered in the cylinders during an extended stop.
To fill the cylinders with sufficient fresh air to ensure a safe start of the engine.
To check that all indicator cocks are closed before staring the engine..
To reduce the start air consumption during start up of the engine.
How is the pressure in the cargo containment system of a conventional LNG carrier controlled during normal operation?
By using the boil-off gas as fuel for the ships propulsion plant.
The gas vapour is evacuated to the atmosphere via the vent-line.
By varying the MARVS.
The gas vapour is taken from the vapour header and passed through the demister and into the LD Compressor and evacuated to the atmosphere via the vent mast.
The pressure delivered by a gear type fuel oil transfer pump suddenly reduces from 5 bar to 4 bar during transfer. From the options given, select the most likely cause of this occurrence.
The oil tank from which the oil is being transferred is empty.
The pump drive has sheared.
The pump gears and casing have become worn.
Part of the pump relief/recirculation valve spring has broken off allowing the valve to open further.
What will the cadet find in the engine store?
He will find The Bosun in the engine store
He won't find anything in the engine store
He will find the port anchor winch in the engine store
He will find new brake bands in the engine store
In bulk carrier design what constitutes the main structural strength element?
The deck plating and shell frames
The collision bulkhead
The shell plating
The transverse watertight bulkheads
Which preparations and precautions are necessary before "hot work" commences onboard ship?
Just inform the Chief Engineer that the work is going to be carried out
Sound the general alarm before commencing work.
Notify all persons onboard at least 24 hours in advance of the work commencing.
Follow all ISM procedures relating to hot work including permit to work and hotwork permit requirements.
In which locations will Ro-Ro units be stained when a vessel is at sea?
Units stowed on ramp slopes
Units stowed near watertight doors
Units stowed in way of fan duct exits
Units stowed near gas tight doors
Many reefer vessels are fitted with controlled atmosphere systems (CA). There are a number of different systems available but generally they all work by introducing nitrogen into the cargo space. Select, from the options given, the main reason why nitrogen is generally the gas chosen for controlling the atmosphere in the cargo spaces of a reefer vessel.
Nitrogen is inert and there is no risk of creating a flammable mixture in the cargo space.
Nitrogen remains as a gas at all temperatures used in refrigerated transport.
Nitrogen displaces the oxygen in the cargo space and allows the respiration of the fruit to be controlled.
Nitrogen is the most plentiful gas available.
Select the three main checks that must be made to ensure that a hold of a General Cargo Vessel is fully weathertight before sailing ?
Hatch cover fully secured, hold access battened down and ballast tanks checked dry
Hatch cover fully secured, hold access battened down and bilge sounding pipe caps on
Hatch cover fully secured, ballast tank ventilators closed down and ballast tank sounding pipe caps on
Hatch ventilators closed, cranes secured and bilges pumped out
What is IMO's definition of liquefied gas?
All chemicals with excess pressure above 2.8 bar at +73.8 C.
All chemicals with excess pressure above 8.2 bar at +37.8 C.
All chemicals with excess pressure above 2.8 bar at +37.8 C.
All chemicals with excess pressure above 2.8 bar at +100 C.
Hydrogen sulphide is a component associated with crude oil cargoes. At which of the following concentrations will dizziness, headache, nausea, etc occur within 15 minutes, followed by loss of consciousness and possibly death, after 30-60 minutes exposure?
50-70 ppm.
1,000 - 2,000 ppm.
200-300 ppm.
500-700 ppm.
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.
During 'dry lay up' of a main water tube boiler it is necessary to maintain dry, low humidity environment in the water spaces. Which of the chemicals given in the options would best achieve this condition?
Sodium hydroxide.
Calcium phosphate.
Silica gel.
Hydrazine
How might a leak from a cargo tank on an oil tanker be readily detected during the voyage?
By regularly monitoring the vessel's trim on the cargo computer - any cargo that leaks will run to the end of a compartment, resulting in an increase in trim.
By occasionally opening a selected tank and manually measuring the cargo ullage, then comparing it to the 'after loading' reading.
By regularly monitoring void and ballast spaces, such as by testing them for hydrocarbon content and sounding them.
By frequently monitoring cargo level equipment readouts and comparing them to the load port departure readings.
Refrigerated cargo spaces are fitted with temperature sensors and in some cases carbon dioxide sensors. From the options given select the one which best completes the following statement. "Monitoring the carbon dioxide content in a cargo space loaded with fruit can be useful because…
… low levels indicate that there are insufficient numbers of air changes."
… increasing levels indicate that the fruit may be starting to ripen."
… its presence indicates that the fruit is ripe."
… its presence indicates that the fruit is still not ripe."
On most ro-ro passenger ships there is no requirement to carry out drills with the passengers. What is the most effective ways of informing embarking passengers about the emergency procedures?
Information on boarding cards, public announcement on departure, posters in public areas and cabins, safety video running continuously
Posters in public areas and cabins, safety video running continuously
Information from the crew
Safety video and folders in tax free shops
What information is required on passengers prior to departure?
All persons on board shall be counted and details of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master
The safety officer shall count the number of passengers
It is sufficient to count the number of passengers prior to departure
Details and number of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master
Where are the maximum Shearing Forces likely to occur on an oil tanker?
At the mid-length of the ship
At the bulkhead between empty and full tanks
At the forward collision bulkhead
At the tank lids
A two step controller (open/close) has failed and the only available spare controller is a P+I controller. Select, from the options given, how the P+I controller could be set up to achieve approximate two step control.
Set the proportional band to maximum width and the integral action to minimum (repeats per minute).
Set the proportional band to maximum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to minimum (repeats per minute).
When a submerged centrifugal cargo pump is being run at too high a speed during discharge of a viscous cargo, the pump may start racing, causing a heat build-up around the suction, possible localised solidification of the cargo and consequent damage to the pump. What term is applied to this problem?
Synthesis.
Cavitation.
Aggregation.
Gravitation.
One of the tubes in a seawater cooled condenser is leaking due to being holed half way along its length. What is the most appropriate onboard repair method to be used from the options given?
Roll both ends of the leaking tube using a tube expanding tool.
Blank off the leaking tube at both ends with steel screw plugs after cutting an internal thread using a suitable tap.
Blank off the leaking tube at both ends using suitably tapered brass plugs.
Blank off the leaking tube by brazing a cap to each end of the tube.
What are twistlocks designed for?
To couple containers horizontally
To couple containers vertically
To bear container loads
To lock containers vertically and horizontally
Some liquefied gas carriers are fitted with nitrogen generating equipment, often of the membrane module design. What would be the expected purity of the nitrogen produced by such equipment?
87 to 89% pure nitrogen.
90 to 92% pure nitrogen.
100% pure nitrogen.
95 to 97% pure nitrogen.
You have just completed discharge of a cargo of Iso-Butanol and are preparing for tank cleaning. The pumpman is going round the deck checking the cargo pump cofferdams for any leakage of hydraulic oil or cargo. What term is applied to this procedure?
Proving.
Stripping.
Venting.
Purging.
For what could a ro-ro vessel be held responsible by a port authority?
Vehicle emissions
Stevedore damages to vehicles
Ramp damage to the jetty
Visitors not wearing appropriate identification
One of the Main Engine cooling pumps is down for maintenance. The rest of the cooling pumps are operating near full capacity with minimum margins on the maximum temperature limit. What should be the correct action to take with regard to UMS operation?
Operate the engine room on manual mode until the maintenance is completed and the cooling pump is operational and switched to stand-by mode.
Arrange frequent checks of the condition during the night otherwise operate in normal UMS-mode
Arrange with a rating "on watch" in the engine room for the UMS period.
Hope that the alarm function and automatic temperature regulation will function correctly and switch to UMS-mode as normal
Why can't we use inert gas from a combustion-type generator when preparing cargo tanks for ammonia?
Because of the high temperature in the inert gas.
Because ammonia reacts with the carbon dioxide in the inert gas.
Because of high water content in the inert gas.
Because of the high oxygen content in the inert gas.
*Generally speaking, what is the value commonly recognised as the maximum concentration of CO2 allowed in the breathing air of a breathing apparatus?
4%
5%
1000ppm
40.000ppm
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