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Maison Tests en ligne CES Passenger Deck Support Test online CES 5.1 for Deck department, Support level, Passenger vessel
Tests en ligne : Test online CES 5.1 for Deck department, Support level, Passenger vessel
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Le test consiste en des questions aléatoires sur un sujet sélectionné.
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The duty engineer of a UMS ship is approached by a member of the ship's staff, seeking permission to hang wet working clothes in the engine room to dry. Should he:
Allow the clothes to be hung over a rail provided there is no electrical equipment directly below
Allow the clothes to be hung over rail next to the warm F.O. service tanks
Allow the clothes to be hung over a rail anywhere
Not allow the clothes to be hung anywhere in the unmanned machinery spaces
How long must an Oil Record Book, documenting oil cargo operations, be retained on board after the last entry has been made?
Not less than 5 years.
Not less than 3 years.
It may be disposed of, or landed at the next port, following completion.
1year.
Shock is a manifestation of changes in which the circulation fails because either pressure or volume of circulating blood has fallen to a dangerous level. What is the skin colour of a patient in shock?
Dark blue.
Light blue.
Pale or grey.
Green or purple.
How many, minimum lines of positions are needed to decide a position using the decca system?
1line of position.
6 lines of position.
2 lines of position.
8 lines of position.
A ship is equipped with a right-handed fixed pitch propeller, which when going from Full Ahead to Full Astern will make the ship sheer to starboard. Can anything be done to reduce this change in heading?
The rudder should be kept amidships when going astern and there is little that can be done to reduce the swing to starboard
The rudder can be put from side to side in a "Rudder Cycling" movement.
The rudder can be put to Hard to Port to reduce the water flow to the right side of the propeller
The rudder should be put Hard to Port to reduce the water flow to the left side of the propeller
Which of the alternative methods of using a tug when escorting your ship through narrow waters do you think is the most effective if you lose steering power?
The tug-s bow against my stern, made fast with lines. By moving the tug to either side of my stern, this will help to steer the ship (figure 4).
Running free alongside, ready to be made fast (figure 2)
Made fast forward on either shoulder, ready to push (figure 3)
Made fast in a line at the bow (figure 1)
When handing over the con of a vessel to a pilot, should the Master insist in discussing the passage plan with the pilot while he is there to use his local knowledge and advice on the navigation of the ship?
The passage is well established and known by the pilot and a plan is therefore not necessary
The pilot would probably consider it unnecessary, be more interested in knowing the ship's characteristics and resist any passage planning discussions with the Master.
A pilot is responsible for the navigation whilst on board and will be very familiar with what is required, therefore discussing the passage plan is not necessary
A passage plan should be discussed between the Master and pilot, when under pilotage in the same way as discussed with the bridge team when deep sea
You are a Senior Officer of the Watch on vessel "A" and are passing through the Straits of Gibraltar. The vessel's speed is 18 knots and your vessel is overtaking several other vessels, when the visibility reduces down to about 2 nm. What aspects would you consider when establishing a "safe speed" for your vessel?
Deciding safe speed consider: 2 miles visibility; traffic density; manoeuvrability of vessel; effectiveness of navigational equipment (ARPA etc); state of sea and currents and navigational hazards.
Adjust my track to follow Route 1 or 2 illustrated and reduce speed down to half speed, approximately 8 knots
Safe speed should be where the vessel can come to a stop within the visible range
A safe speed is where a vessel can take proper and effective action to avoid collision and be stopped within an appropriate distance
To choose the HF-band, the time difference between 2 stations is:
irrelevant
Don't know
is hardly relevant
is important
Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?
Start with all system valves fully opened.
Start with the discharge valve throttled in to prevent excess condenser pressure.
Start with suction valve throttled in to minimise risk of drawing liquid refrigerant into the compressor.
Start and stop repeatedly until suction pressure and oil pressure are normal.
On the figure 4 possible definitions of the term "FAIRLEAD" are given. Which one is the correct one?
Fairlead is given by B on the figure
Fairlead is given by D on the figure
Fairlead is given by C on the figure
Fairlead is given by A on the figure
What type of lashing arrangement is needed on weather deck for securing one container high?
No lashing arrangement needed.
Turnbuckles and rods.
Twistlocks with turnbuckles and rods.
Twistlocks.
Substances, materials and articles shall be stowed as indicated in the Dangerous Goods List of the IMDG Code, in accordance with a series of stowage categories. How are those categories designated?.
10 categories, numbered 1-10.
5 categories, labelled A-E.
Three categories, numbered I, ii and iii.
10 categories, lattered A-K (excluding I).
For what purpose are we using a Mollier diagram?
We use the Mollier diagram to calculate the differential pressure over the cooling plant.
We use the Mollier diagram to calculate the heat transferred to the cooling plant.
We use the Mollier diagram to calculate the vapour flow in the cooling plant.
We use the Mollier diagram to calculate the cooling capacity of the cooling plant.
How do You want to operate the purifier to obtain the best separation result?
By high flow and low temperature.
Flow and temperature have no influence on the result.
By high flow and high temperature.
Separation with correct temperature and low flow rate.
Ship's generators must be synchronised before they can be connected to the same supply network. Prior to synchronising, the generator voltage and frequency are respectively adjusted by:
Voltmeter and frequency meter
Synchroscope and speed governor
Speed governor and load power factor controller
AVR and speed governor
What is the minimum number of bolts required in a 12 inch bolted flange cargo hose coupling?
8 bolts
4 bolts
6 bolts
A bolt in every hole
You have just completed your cargo watch on deck, during which you have been working around the manifold, connecting and disconnecting hoses, etc. It is meal-time. Should you take any precautions before entering the messroom and why?
I will remove my overalls and work boots and wash my hands, to avoid the risk of introducing chemical contaminants into the accommodation.
No, I am just going in for my lunch and then returning to work on deck, so it would be a waste of time to get changed.
I will wipe my boots and brush down my coveralls before entering the accommodation, to make sure I don't bring any dirt inside.
I will remove my overalls and workboots, because I will get in trouble from the captain if he catches me in work clothes in the messroom.
Air bags (dunnage bags) are widely used for securing palletised refrigerated cargoes. In the case of a fruit cargo, which of the given options should the user be aware of?
Over inflation can crush and damage the soft tissue of the fruit.
Over inflation can distort the pallet stack.
Over inflation can distort the air bag.
Over inflation can damage the ship's structure including the insulation.
Ballast introduced into a cargo tank on a chemical tanker which has been washed to such an extent that the ballast contains less than 1 ppm of the substance previously carried may be discharged into the sea without regard to the discharge rate, ship's speed and discharge outlet location, but under certain conditions. What are those conditions?
That the vessel is not less than 50 miles from the nearest land and is proceeding on route.
Provided the ship is underway and a sample of the ballast water has been drawn from the tank and is stored on board, there are no additional conditions to be imposed on such a discharge.
That the discharge is passed through the Oil Discharge Monitoring Equipment and a visual watch is maintained on the vessel's wake.
That the vessel is not less than 12 miles from the nearest land and is in water that is not less than 25 metres deep.
Gas welding is carried out in the work shop. Prior to lunch break the following precaution is carried out:
No precautions are taken
One of the ratings is left "on watch" during the lunch break.
The main supply valves in the deck storage are closed prior to switching to UMS-mode
The local acetylene/oxygen valve in the work shop is closed prior to switching to UMS-mode
A vessel's cargo spaces have been cleaned following discharge of a cargo of onions. However a smell of onions still persists. Select the action that should be carried out before the space can be considered as ready for the next refrigerated cargo from the options given.
Wash down the space with clean fresh water.
Ventilate the space.
Wash down the space with an approved agent such as 6% hydrogen peroxide.
Wash down the space with a scented detergent (lemon or pine).
What number is being shown by this flag hoist?
2202
1101
2121
1100
Which of the procedures given in the options should be adopted, when walking across a stow of refrigerated produce, in order to minimise any damage to the produce?
Use a walking board.
Wear disposable covers over work shoes or boots.
Keep the number of return journeys to a minimum.
Wear clean work shoes or boots.
A refrigerated container vessel described as being 'con-air' would most likely maintain perishable products by which of the following means?
By supplying fresh water to the holds for additional cooling of suitable integral units.
Electric power supplied to clip on units which are attached to the reefer containers.
Cold air delivered direct to the containers via a system of ducts.
Electric power supplied direct to the containers via connections on deck and in the holds.
he instrument most widely used for testing of semiconductor diodes is
Ammeter
Ohmmeter
Oscilloscope
Voltmeter
What is the normal maximum oil content permitted for machinery space bilge overboard discharge via OWS equipment?
15 ppm
100 ppm
Zero ppm
50 ppm
A heavy piece of machinery is loaded on deck of a container vessel, stowed across several flatrack containers. Select the most appropriate lashing method.
All lashings to be taken to the hatch top.
Some lashings direct to the flat rack and some to the hatch top, coaming and pillars.
All lashings to be taken to the flatrack lashing points.
All lashings to be taken to the hatch coamings, pillars and lashing bridges.
When bunkering through the port side of the bunker manifold what action should be taken with the valves on the starboard side of the manifold prior to bunkering operations commencing?
Just fit the blank flanges then it doesn’t matter if the valves are closed or not.
The blank flanges should be removed from the starboard side manifold valves to check for any leakage past the closed valves.
Just check that the valves are closed.
Blank flanges should be fitted to the closed starboard side manifold valves.
You can reduce the need for security guards in certain areas by installing:
Anti-intruder devices
Vapour detectors
Water cannons
Metal detectors
What is the correct understanding of the term "boat drill"?
The opportunity for all on board to launch the boats and abandon ship.
A demonstration for the people on board to understand how a lifeboat can be used to abandon ship
Practical exercise for the people on board to practice their duties and be prepared in the case of an emergency abandon ship.
A presentation by the Master on what he would expect from all on board in the case of an emergency.
After discharging petcoke and washing the cargo holds in the Mediterranean Sea where can a vessel bound for Aden discharge the cargo residue?
At a shore facility
In the Red Sea
In the Mediterranean Sea
In the Gulf of Aden
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
On a RoRo vessel, what additional securing arrangements should be used when loading a vehicle on an incline or fixed Ramp
Double the normal lashings should be used
None
The Vehicle should also be chocked under its wheels
What temperature defines "hot" water in the context of tank washing on a chemical tanker?
A minimum of 10 degrees Celsius above the discharge temperature of the cargo.
At least 40 degrees Celsius.
At least 60 degrees Celsius.
At least 70 degrees Celsius.
When a new crewmember joins a ship for the first time, on-board training and instructions in the use of the ship's life-saving appliances, including survival craft equipment and in the use of the ship's fire extinguishing appliances shall be given as soon as possible. What is the maximum timeframe for completion of this training?
Maximum 2 months
Maximum 6 months
Maximum 2 weeks
Maximum 1 week
When is it safe for ship's personnel to enter the cargo tank of an LNG carrier to carry out routine maintenance and inspection?
Whenever the tank has been emptied of cargo as long as breathing apparatus is worn.
Only when the tank has been discharged and it is fully inerted.
Only after gas freeing and an atmosphere test shows 21% oxygen content.
Whenever a test of the atmosphere shows a methane content of less than 2% of the lower explosive limit (LEL).
Zener barriers are sometimes used to supply power to electronic equipment in hazardous areas. Which statement is correct with regards to power supply for equipment supplied through Zener-barriers?
The 0-volts line must always be grounded.
The +24V must always be grounded.
The 0-voltage must never be grounded.
The - 24V must never be grounded.
What is the correct definition of "lee side"?
Port side.
The side from the wind.
The side against the wind.
Starboard side.
The use of steam driven ejectors for ventilation of cargo tanks having flammable vapours in them is not recommended now-a-days due to:
Steam at high velocities may generate static electricity which might cause incentive sparks?
It being not a very effective system for tank ventilation?
It is rather expensive to waste steam?
It might cause burns to unwary personnel?
The temperature of chilled air is monitored after it has passed through a refrigerated cargo and the temperature noted. This temperature is often referred to as the RAT. Which of the given options does RAT stand for in relation to refrigeration of a cargo?
Return Air Temperature.
Respirated Air Temperature.
Relative Air Temperature.
Reduced Air Temperature.
When loading a General Cargo ship, what do logs, fishmeal, scrap metal and bales of cotton have in common?
They are all capable of causing oxygen depletion in the cargo holds
They are all liable to spontaneous combustion
Fires caused by these cargoes cannot be extinguished using carbon dioxide gas
They contribute to ship's sweat
Many lamb product cargoes are carried at sea. Most of these are temperature sensitive. Which is the odd one out from the options given?
Tallow.
Carcass lamb.
Lamb offal products.
Chilled lamb.
During inspection of the crankshaft of a medium speed diesel engine cracks are discovered at one of the main journal pins. The cracks originate from one of the oil holes and are progressing along the pin at approximately 45 degrees to the axis. From the options given select the most likely failure mode that would cause this.
Torsional fatigue due to excessive torsional vibration in the crankshaft.
Shear due to excessive loading of the crankshaft.
Fatigue due to repeated excessive bending of the crankshaft.
Erosion due to excessive oil flow through the oil hole in the crankshaft pin.
When securing a non-standardized portable tank what is a favourable securing angle that will prevent it from tipping in the fore and aft direction?
40 to 50 degrees
65to 70 degrees
60 to 65 degrees
50 to 60 degrees
The range of a transducer is 0-200 bar. The standard output signal is 4-20 mA. What is the output signal when the process value is 100 bar.
24 mA
4 mA
10 mA
12 mA
Where does the excess steam discharge to when the boiler safety valves operate due to the boiler pressure being too high.
The main condenser
The engineroom bilges
The auxiliary condenser
The atmosphere via the atmospheric line
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
How is damage to the piston rod stuffing box rings avoided when removing and replacing the piston during overhaul of the piston of a large two stroke diesel engine?
A tapered guide sleeve should be fitted over the threaded end of the piston rod.
The piston rod gland should always be removed from the engine before the piston is lifted out to avoid damage to the rings.
The lower part of the piston rod is wrapped in rags.
The piston rod nut is put on during removal and refitting of the piston through the gland.
When you are calibrating an instrument what is the most common first step in the procedure (consult the manual)
Adjustment of Zero-point and span
Adjustment of span
Adjustment of range
Adjustment of linearity
Which of the following statements is correct with regard to IMDG Class 4 (flammable solids) cargoes loaded on a General Cargo vessel?
The cargo is not covered by the requirements of the IMDG Code
The goods can only be carried in the forward part of the vessel
The cargo can be stowed anywhere on the vessel
The goods require protection against movement and can only be loaded if a cargo declaration is supplied by the shipper
Where would you look to find details of the crude oil washing system, its equipment and operating procedures? ,
The Operations and Equipment Manual (COW Manual).
MARPOL 73/78.
The Oil Record Book.
The ODME Manual.
How can you arrange for safe movement of passengers on ro-ro decks?
Passengers should stay in their cars until loading is completed. They should keep to walkways when leaving the car.
Passengers are responsible for their own safety while moving about ro-ro decks.
It is easy, only drivers are allowed to stay in the car during loading and unloading.
Passengers should be warned of vehicle movements when entering or crossing car or vehicle decks. They should preferably keep to walkways while moving about the ship.
A steam generating tube in a boiler is found to be badly sagged but not ruptured. Select, from the options given, the most suitable action to be followed in order to operate the boiler.
Plug both ends of the tube and drill a hole in the body of the tube.
As long as the tube is not ruptured the boiler can be operated normally.
Plug both ends of the tube.
Heat the tube up with a gas torch and return it to its original shape and position.
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 picture shows a liquid filled thermometer. Liquid filled thermometers and manometers are often installed onboard ships. What is the main purpose for the liquid filling of such pointer instruments?
Keep the rear side of the front glass clean
Avoid water penetration from outside
Reduce mechanical wear on the internal parts caused by vibration
Compensating for changes in ambient temperature
On a container vessel, what additional force must be considered when planning the lashings for containers stowed at the outboard part of the deck stow.
Lack of support from adjacent columns of containers.
The effect of green seas breaking over the containers.
The effect of wind on the containers.
The greatest transverse accelerations are experienced at the outboard sides.
What is silica gel normally used for on board liquefied gas carriers?
It is used as a treatment for frostbite.
It is used as an insulating material for the cargo tanks.
It is used as a fire fighting medium for cargo fires.
It is used as a drying agent for the inert gas.
Cross flooding arrangement
Separate trim tanks
Ballast trimming system
Self acting ballast trimming arrangement
What is the meaning of TLV and what unit do we use on it?
TLV is the threshold limit value and the unit is ppm - parts per million.
TLV is the total level value and the unit is ppm - parts pr million.
TLV is the technical limit value and the unit is ppm - parts per million.
TLV is the threshold limit value and the unit is litre.
Insulation resistance measurements may be influenced by which of the following?
Temperature, humidity and surface contamination
Humidity, pressure and surface contamination
Humidity, frequency and dampness
Temperature, pressure and dampness
Which of these foods, when consumed in high quantities, will increase the cholesterol level over time?
Vegetables
Fish
Pork
Chicken
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?
No action necessary.
Reduce speed temporarily and increase cylinder oil consumption.
Reduce speed.
Increase cylinder oil consumption.
Which statement about stress is correct?
Stress interferes with an individual's ability to respond to a threat.
An example of stress is a shipboard fire.
Individuals in a shipboard emergency experience different levels of stress.
Stress is an unusual reaction to a threatening situation.
Who will verify the computational results and actual ship data used by the calculation program on a vessel's stability computer?
The master.
The manufacturer.
The Classification Society.
The engineer attending the installation and initial on-site testing.
Is it required to have supplementary emergency lighting on board passenger ships?
Yes, all passenger public spaces and alleyways shall be provided with supplementary electric lighting
No, reflective marking indicates the escape routes
No, passengers should bring their own flashlights
No, portable battery operated lamps shall be provided in alleyways and public spaces
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.
Carbon dioxide, CO2, can solidify and form dry ice at low temperatures. What is the solidifying temperature of CO2?
approximately minus 87.5 C
approximately minus 78.5 C
approximately minus 60.5 C
approximately minus 30.5 C
What are ‘Dangerous Goods’ within the context of containerisation?
Goods that are liable to explode
Substances, materials and articles covered by the International Maritime Dangerous Goods (IMDG) Code
Goods that are self-heating and liable to spontaneous combustion
Goods that are liable to cause damage to the ship
The sign on the image indicates:
Location of immersion suit(s)
Location of boiler suit(s)
You should wear warm clothes in this area
You should wear immersion suit when working in this area
An auxiliary engine is fitted with a duplex type lubricating oil filter. The in-use element requires changing. What procedure should be used to fit the new element?
With the engine running, position the changeover cock so that both filters are in use to reduce the pressure before.
With the engine running, change over to the other filter after priming it and replace the dirty element after checking there is no pressure on dirty filter housing.
With the engine running, shut off the filter inlet and quickly fit the new element.
The engine must be stopped to fit a clean filter element..
The Classes drawn up by the UN Committee of Experts for the safe handling of hazardous substances, as listed in the IMDG Code, are drawn up on the basis of which of the following criteria?
Chronological order in which they have been assessed.
Selective laboratory tests commissioned by the Committee.
Alphabetical order.
The type of hazard they present.
What should be done immediately after discharging is completed?
Switch off the lights and close all fire doors
Wash the car deck
Inspect ro-ro decks. Wipe up spill such as oil or water from the deck and clear up lashing equipment
Paint the lanemarks
Why are all passenger ships divided into vertical ’zones’?
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.
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.
There is one fire team in each zone.
An electric motor is to be aligned to a pump by insuring shims under the motor feet. Which of the tools given in the options would be used to check that the alignment is correct by measurement of the gap between the coupling faces?
An inside vernier calliper.
A set of feeler gauges.
An inside micrometer.
A go/no go gauge
A conventional reefer vessel is loading a cargo of hard frozen palletised meat with a required carriage temperature of minus 18 degree Celsius. A thermistor at the centre of the pallets indicates the temperature to be approximately minus 10 degrees Celsius during loading. What action, from the options given, should be taken under these circumstances?
Continue loading onboard and deliver air at the lowest possible temperature to cool the cargo down to the correct carriage temperature.
Continue loading onboard at minus 10 degrees Celsius and then gradually reduce the air delivery temperature to minus 18 degree Celsius.
Return the cargo ashore for pre-cooling to minus 18 degrees Celsius.
Continue loading onboard and maintain the air delivery temperature at minus 18 degrees Celsius.
What does the term "Hard a Starboard" or "Hard to Starboard" mean?
Start the ship swinging to starboard.
Do not allow the vessel to swing to port.
The wheel is difficult to turn to starboard.
Put the wheel fully over to starboard.
What name is given to the part of the discharging operation on an oil tanker when the last remaining contents of a tank or line are being pumped out?
Puddling
Purging
Lifting
Stripping
What would affect the proper functioning of a bridge fitting?
Pitting
A fully extended spindle
Lack of grease
Buckling
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12 H, in series. Calculate the equivalent total inductance.
L(S) = 18H
L(S) = 0.5 H
L(S) = 1,5 H
L(S) = 4H
At what latest time shall doors, side scuttles, gangway doors, cargo- and coaling ports and other openings which are to be kept closed watertight at sea be closed at the start of the voyage?
Before leaving the pilot station
Before leaving the berth
Before entering open waters
Before leaving the port
On a Container vessel, where should containers containing infectious substances be stowed?
In a position separated by a complete compartment or hold from living quarters
On deck away from the accommodation
Under deck
On deck abaft the accommodation
What is the requirement for isolating slop tanks on combination carriers when cargoes other than liquied cargoes are carried?
Single shut off valve.
Double shut off valves.
A blank flange.
Remove spool piece.
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
5% extra
25% extra
10% extra
Which of the options given is the main reason for using a ring spanner to tighten the brass nuts on the cover studs of a pump casing?
The nuts can be tightened more with this type of spanner.
It will allow the nuts to be tightened correctly.
It will minimise the risk of slipping off the nut or damaging the nuts.
It can be adjusted to the exact size of the nut.
When should gangway nets be rigged?
When it is deemed necessary by the Master or the Chief Officer.
Between sunset and sunrise.
Whenever the gangway is regarded as unsafe.
Whenever the gangway is rigged.
On the figure 4 possible definitions of the term "DRAUGHT" are given. Which one is the correct one?
Draught is given by C on the figure
Draught is given by A on the figure
Draught is given by D on the figure
Draught is given by B on the figure
What does the Captain want to have done?
He wants the Chief Officer to organise the repairs of the lifeboat motor
He wants the Chief Officer to organise a lifeboat drill
He wants the Chief Officer to check the lifeboat motor
He wants the Chief Officer to fix the lifeboat if there is something wrong with it
To maintain a fire, three conditions need to be met: Oxygen, combustible material and sufficient temperature for combustion. What subject must be removed to extinguish the fire?
Oxygen.
Either of the mentioned alternatives.
Combustible material.
Heat, Oxygen and combustible material.
How often shall crew members participate in fire drills?
Once every year
Once every month
Once every week
Once every 6 months
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.