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Maison Tests en ligne CES Chemical tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Chemical tanker vessel
Tests en ligne : Test online CES 5.1 for 2nd-Off / 3rd-Off, Chemical tanker vessel
Test en ligne
Description
Le test consiste en des questions aléatoires sur un sujet sélectionné.
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*Shall any required automatic sprinkler be capable of immediate operation without action by the crew?
No
It depends on the area it is placed
Yes
Only in the engine spaces
*The correct order of actions to be taken in a fire emergency, should be…
Evaluation of the situation, confinement of fire, rescue and life-saving, extinction
Evaluation of the situation, rescue and life-saving, confinement of fire, extinction, then feed back on the emergency
Extinction, confinement of fire, feed back on the emergency, rescue and life-saving, then evaluation of the situation
Extinction, evaluation of the situation, confinement of fire, rescue and life-saving
Static electricity may be built up by the :
spraying or splashing of petroleum
flow of petroleum through pipes
settling of solids or water in petroleum
All of the above
Watch keeping engineers shall have a minimum of knowledge of the vessel's engine room and operation of its functions prior to being accepted as Engineer on Duty, and shall acknowledge his familiarization with the equipment by signing a check list listing all units he shall be able to operate. Minimum knowledge is:
Start, operate and stop main and auxiliary machinery units, including switching between automatic, remote and/or manual control functions, and operate the various units in various modes.
Check routines during operation and prior to switching to UMS-mode
Understand the function of all main and auxiliary equipment, e.g. machinery, pumps, fuel systems, cooling systems and the interlinks between various units and the function of them.
He shall have all the knowledge as listed in the other alternatives
What can lead to "Unlimited responsibility" (OPA-90)
Wilful misconduct and gross negligence
Wilful misconduct, gross negligence and violation of Federal Safety
Only gross negligence
Only wilful misconduct
What will you serve seafarers who have been exposed to heat?
Cold drinks and salt.
Warm fresh water only.
Strong cocktails with plenty ice.
Hot and spicy food.
You are planning the discharge of a crude oil tanker with segregated ballast tanks, SBT. Which of the cargo tanks should be crude oil washed if you are expecting heavy weather?
All the cargo tanks that were not COW'ed in the last discharge port
At least 30% of the cargo tanks
The dedicated heavy weather ballast tank
Both sloptanks, and 30% of the remaining cargo tanks
MARPOL 73/78 - Annex IV. Prevention of Pollution by Sewage from ships. This annex is not yet in force, however, some Governments are practising these rules. What do you understand by the word "Sewage"?
Drainage/waste from toilets/urinals.
Waste from galley.
Mixture of sea water/oil.
Waste from synthetic materials.
With a "good" GPS satellite position fix it is possible to achieve an accuracy of:
20 - 100 meters.
250 - 500 meters.
2 nautical miles.
1nautical mile.
Give the meaning of the following symbol
Wheeled fire extinguisher
Emergency generator
Fire pump
Portable fire extinguisher
The vessel is involved in a rescue operation for a Man Overboard and is to launch a lifeboat. What additional items would be very useful to take onboard the lifeboat to assist in the operation?
Extra Painter
Extra food
VHF or some means of communication
Blankets
Once a ship (equipped with self-stowing auto-tension winches) is moored alongside a loading or discharging berth, it is recommended that:
All winches to be left with the manual brake on and out of gear.
All mooring winches be left in 'auto-tension' mode
The 'spring' winches be left in the auto-tension mode and all other winches with the manual brake on
The 'breastline' and 'headline' winches be left in the auto-tension mode and spring winches with manual brake on
What shape of hull would you say a course unstable ship would have?
A ship with a length to beam ratio greater than 5.5
A ship with a length to beam ratio less than 5.5
A ship with a long, slim hull.
A ship with a length to beam ratio less than 7
You are duty officer and it is restricted visibility. On the radar you are observing a vessel foreward on your bow (7 n.m. off) and a vessel with approx the same speed and course on your starboard side, but with a CPA of 0,2 mm. You alter your course to starboard and cannot avoid the collision. What should you have done instead?
You should call the other vessel on the VHF and asked the Sen.Off.Deck to keep away.
You did not do anything wrong. The collision could not be avoided.
You should have reduced your speed to the minimum on which the vessel can be kept on course.
You should altered your course to port and then avoided the collision.
The positions of the ship provided by the GPS should always be confirmed by other means, when possible. Which of the following suggested methods would be the most accurate?
The ranges of three distinctive shore objects on the radar.
Bearing using the Radio Direction Finding of three radio beacons
Bearing and distance from a navigational Buoy
Compass bearings of three shore objects
What should not be found on the muster list ?
the name of each inoccupants (passengers included, if any)
indications about the substitutes for key persons, in case they become disabled
the duties assigned to the different members of the crew
details of the general emergency alarm signal
Which one of the listed requirements regarding life-saving appliances corresponds to present regulations?
All prescribed life-saving appliances shall be made of non-combustible or fire retardant material
All prescribed life-saving appliances shall have marking in red colour
All prescribed life-saving appliances shall be of such a colour that they are in contrast to the surrounding colour
All prescribed life-saving appliances shall be fitted with the manufacturers name and Logo
Which of the listed requirements for cargo ships regarding personal life-saving appliances does not correspond to present regulations?
Ships with a length of 100 metros or less shall carry minimum 8 lifebuoys
Cargo ships of less than 85 metros in length shall, as a general rule, carry immersion suits for every person onboard
Ships fitted with free-fall life-boats may carry thermal protective aids instead of immersion suits
Self-igniting lights for lifebuoys required on tankers shall be of an electric battery type
Which one of the listed requirements regarding immersion suits do not correspond to present regulations? The immersion suit shall be made of waterproof materials and constructed such that:
it will cover the whole body with the exception of the face
it can be unpacked and donned without assistance within 2 minutes
it will have sufficient built in buoyancy to avoid the use of a lifejacket
it is provided with arrangements to reduce free air in the legs of the suit
Which item among those below is included in the normal equipment of every rescue boat ?
one daylight signalling mirror with instructions
a survival manual
a searchlight which can work continuously for not less than 3 hours
four rocket parachute flares
Which item among those below is included in the normal equipment of every liferaft ?
one boat-hook
one set of fishing tackle
one searchlight which can work continuously for not less than 3 hours
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
Which one of the listed requirements regarding the stowage of rescue boats do not correspond to present regulations? (SOLAS III/14)
Rescue boats shall be stowed attached to launching appliances
Rescue boats shall be stowed in apposition suitable for launching and recovery
Rescue boats shall be stowed in a state of continuos readiness for launching in not more than 5 minutes
Rescue boats shall be stowed so neither the rescue boat nor its launching arrangements will interfere with any survival craft at any other launching station
Which of the following actions should be done before throwing this type of inflatable liferaft over the side?
Inflate it on deck and then launch it if clear below
Check that the painter is made fast to a secure point and that the sea below is clear
Take the top off the container to enable raft to inflate once in the water. If all clear, throw raft over side
Disconnect the painter and launch it, checking that all is clear below
Give the meaning of the following symbol
Rocket parachute flares
Survival craft distress pyrotechnic signals
Radar transponder
Survival craft portable radio
Which of the following ear protection devices is most effective?
Ear plugs.
All equal.
Dry cotton or cottons balls.
Ear muffs
On a RoRo vessel, to what should a heavy vehicle be secured on a car deck?
Clover leaves
Crinkle bars
Lashing holes
'D' rings
On the figure there are four (4) possible definitions of the term "QUAY" given. Which one is the correct one?
Quay is given by D on the figure
Quay is given by A on the figure
Quay is given by C on the figure
Quay is given by B on the figure
The inert gas system shall be capable of delivering inert gas to the cargo tanks at a specified percentage in relation to the cargo discharge rate. What is that percentage?
Equal to the cargo discharge capacity.
At least 135% of the maximum discharge capacity.
At least 150% of the maximum discharge capacity.
At least 125% of the maximum discharge capacity.
Where can the size of the Magnetic Compass Error be found?
By taking a transit bearing of two fixed geographical positions and comparing it with the bearing of the same points on the chart
On the chart in the centre of the compass rose or by reference to the Variation chart, taking into account the annual changes
By reference to the last entry in the Compass Error Log Book
By taking the error from the Deviation Table on the bridge
What name is given to the independent detection and warning system aimed at preventing overfilling of a cargo tank (and ultimately overflow of cargo) on a chemical tanker?
Safe ullage maintenance panel.
Level set detector.
Overflow prevention system.
High level alarms.
The temperature of a refrigerated cargo is controlled by the temperature of the air being blown through the cargo hold which is often referred to as the DAT. What does the term DAT stand for?
Deviation Air Temperature.
Digital Air Temperature.
Delivered Atmosphere Temperature.
Delivery Air Temperature.
What are the main elements in a damage control plan?
Instructions and procedures for reporting damage to the Company
Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.
Arrangements for correction of list due to flooding within 15 minutes
A damage control plan is the same as an emergency plan
Pasta is often referred to as "al dente". What does this mean?
Coated with oil before boiling.
Part cooked.
Tender, but slightly firm to the bite.
Served separately from other ingredients.
How often shall the master review the safety management system?
Every month
Bi-annually
Every 5 years
Annually
Too high exhaust temperature in one cylinder becomes because of:
Leakage in the inlet valves.
Poor cylinder condition – blow by –including leaking exhaust valves.
Too low admission on fuel injection pump.
The amount of cylinder lubricating oil feed to the cylinder is too small.
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
When handling slops on an oil tanker, what is meant by "settling"?
Allowing any waxy layers to settle below the residual oil
Allowing the oil and water to separate out
Allowing the mixture to rest once it has been pumped into the slop tank, so that any static charge disperses
Allowing any sediment to separate out and drop to the bottom of the tank
Which IMO publication deals specifically with the construction and equipment of liquefied gas carriers?
The IMDG Code.
SOLAS.
MARPOL.
The IGC Code.
A deadweight tester is used to check and calibrate a pressure gauge. The tester consists of a hydraulic pump and a hydraulic chamber and balance weight system. After completing the calibration of the pressure gauge the hydraulic pressure should be relieved before removing the weights. Select, from the options given, the main reason for this requirement.
To protect the pressure gauge from a surge in pressure as the weights are removed.
To protect the hydraulic balance system from a pressure surge as the weights are removed.
To protect the piston in the hydraulic system from possible impact damage as it may reach the end of its stroke.
To protect the hydraulic pump from a pressure surge as the weights are removed.
On the figure 4 possible definitions of the term "BOW/STEM" are given. Which one is the correct one?
Bow/stem is given by B on the figure
Bow/stem is given by A on the figure
Bow/stem is given by D on the figure
Bow/stem is given by C on the figure
Which of the following is an oval-shaped, purple coloured vegetable, with white, spongy flesh, native to tropical Asia but popular today in Mediterranean cookery?
Asparagus (asperge)
Angelica (dang-gui)
Artichoke (carchofas)
Aubergine (brinjal)
By what name are the regulations which control the discharge of noxious substances and prevent pollution from ships known?
SOLAS
The International Marine Pollution Prevention Laws
ISGOTT
MARPOL
If the high PPM alarm is actuated on an automatic O.W.S. What should happen?
The sludge pump stopped.
Overboard discharge is stopped.
Overboard discharge continues.
The oil outlet valve opens.
On the figure there are four (4) possible definitions of the term "AIR DRAUGHT" given. Which one is the correct one?
Air draught is given by B on the figure
Air draught is given by A on the figure
Air draught is given by D on the figure
Air draught is given by C on the figure
When data are to be transferred over a telephone line, we often utilize modem at each end. Which of the following adapter cards (parts) will you use for interfacing a modem to a computer?
Parallel adapter
Serial adapter
Enhanced graphic adapter
VGA display adapter
What is the difference between the protection supervisor's and the protection and environment committee's area of activity?
The supervisor's duties relate to the ratings, the commitee's to all seafarers
The commitee is supervised by the protection supervisor
The supervisor's field is the work situation, the commitee's the total environment, also spare time
No difference
Spray painting has been carried out in the engine room while the engine was running, and the turbocharger intake filter was not protected. Which one of the options given is most likely to result from this?
Scavenge air pressure lower than normal.
Exhaust gas temperatures lower than normal.
Scavenging air pressure is higher than normal
The revolution of the turbocharger lower than normal.
What is the most important factor to be considered when planning the lashing system for a particular sea route?
The quantity and type of lashing materials
Transverse accelerations
The size and weight of packages/cargo units to be loaded
The breaking strength of lashing materials
What is meant by the term "certified gas free"?
A tank, compartment or ISO-container that has been tested and produced a negative result when tested for Hydrogen Sulphide and has then been closed until required for entry.
A tank,compartment or container that has been tested by an authorised person using an approved testing device and found to contain an adequate level of oxygen and free from toxic or flammable gases and for which a certificate authorising entry has been issued.
A cargo tank that has been tested by a ship's officer using a testing device that is in regular use and found to contain above 17.5% oxygen by volume and where a tank entry label is displayed in the vicinity of the tank lid.
A tank, compartment or container that has been tested for oxygen content by a certified shore chemist.
What is a "colander" used for?
To drain the water off food.
To stir foods during cooking.
To hold different foods together during barbequeing.
To test the temperature of food during cooking.
When planning bunkering operations it is preferable to arrange for the new fuel to be bunkered into empty or nearly empty tanks whenever possible. What is the main reason for this?
To minimise the risk of microbial contamination of the fuel.
To make it easier to calculate the quantity of fueltaken onboard.
To minimise the risk of incompatibility between different fuels.
So that the sulphur content of each fuel is known.
Following overhaul of the cylinder units of a 4-stroke diesel engine and a suitable running in period it is noted that the lubricating oil consumption of the engine has increased considerably and unexpectedly. The engine is otherwise running normally. Select, from the options given, the most likely cause of this problem.
A piston crown has burnt through
The oil control ring has been fitted incorrectly.
The piston rings have worn rapidly.
The cylinder liner has worn rapidly.
Where on board a ship will cargoes experience the least accelerations?
At the intersection of the fore and aft, athwartships and vertical axes of the ship
At the intersection of the fore and aft and vertical axes of the ship
At the intersection of the athwartships and vertical axes of the ship
At the intersection of the fore and aft and athwartships axes of the ship
What name is given to the process on an oil tanker, when inert gas is being blown into a cargo tank, to reduce the level of oxygen it contains?
Blowing.
Purging.
Venting.
Gas-freeing.
"Your ship security plan must include procedures for responding to security threats, auditing security activities and interfacing with the port facility."
FALSE
.
TRUE
What is the maximum pressure that the safety valve on a steam boiler should be set to lift?
3% above the normal working pressure.
10% above the normal working pressure.
At the maximum design or maximum permitted working pressure of the boiler.
3% above the maximum design pressure..
A bulk coal cargo is to be loaded and the moisture content is declared as 19 ; the transportable moisture limit of the cargo is declared as 15, what should the Master do?
Load the cargo as the moisture limits are within acceptable limits
Refuse to load the cargo unless the vessel is specially designed for the carriage of cargo which may liquefy
Load part cargo only
Load cargo and ventilate on passage to remove water
What would you do if you were told that cargo on a flatrack has a tendency to deform or to compact during the voyage?
Slacken the cargo securing gear
Reject the cargo
Ensure that the cargo is secured as per shipper’s instructions
Accept the cargo as it is and clause the mate’s receipt accordingly
What should be continuously monitored when carrying DRI cargoes?
Hydrogen emissions
Integrity of the inert gas blanket
Nitrogen emissions
Cargo temperatures
With regard to the characteristics of a mafi trailer what must be ensured prior to unfastening this unit on board a ro-ro vessel?
That the cargo details have been checked
That there is sufficient room for it to be driven away
That cargo on the trailer is not damaged
That after unfastening it will not move
Which of the following statements concerning an accidental oil spill in US waters is true?
The person in charge must report the spill to the US Coast Guard
A warning broadcast must be made by radiotelephone (VHF)
The Corps of Engineers is responsible for the clean up of the oil spill
The Department of Interior is responsible for the clean up of the oil spill
After discharging a high density cargo a serious crack is found in an upper ballast tank amidships of a Bulk Carrier; what must the Master do?
Note the dimensions of the crack and measure regularly
Proceed on ballast voyage without ballast in this tank
Repair with cement box or temporary welded patch until next drydock
Inform Designated Person Ashore (DPA) and call in Classification Society
An engine room rating is assisting the duty engineer during a period of UMS operation. After completing the tasks they have been busy with the engineer and rating leave the engine room which is returned to UMS mode. The rating realises that an oil tank filling valve has been left open. What action should be taken?
Inform another crewmember that he is going back into the engine room to close the valve.
Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.
Just leave the valve open as it is unsafe to enter the engine room alone. The high alarm will sound to notify the engineer when the tank is full.
Re-enter the engine room straight away and shut the valve.
What is the recommended maximum salt intake per person per day?
2,300 milligrams (0.08 ounce).
635 milligrams (0.02 ounce)
1gram (0.04 ounce)
4,600 milligrams (0.16 ounces)
How could your menus best contribute to reducing the number of dental problems amongst the ship's crew?
By ensuring that at least two portions of vegetables are available with every meal.
By limiting the use of sugar-rich foods and beverages and those containing high levels of starch.
By increasing the amount of red meat served on board.
By ensuring that a minimum of 1.5 grams of salt per person is included in the daily menu.
Liquefied gas carriers and terminals must each have an Emergency Shut-Down (ESD) system. In the event of an emergency during loading which is normally the preferred order of operating these emergency shut down systems?
Operate both ESD systems together, simultaneously.
Operate the ship ESD system first.
Operate the terminal ESD system first.
There is no preferred order of operation for these systems.
Who is responsible for implementation of working environment work on board?
Government.
Master.
Shipping company.
Both master and shipping company.
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?
OR gate
AND gate
NOR gate
NAND gate
Foodstuffs which have not been cooked or prepared in any way may be described as which of the following?
Core
Roar
Pure
Raw
Certain vessels are required to maintain oil record books according to the IMO. Is it compulsory that an oil record book is maintained onboard liquefied gas carriers?
Yes, all ships to which MARPOL 73/78 applies must have oil record book parts 1 and 2 onboard.
Yes, all ships to which MARPOL 73/78 applies must have an oil record book part 1 onboard
No, since MARPOL 73/78 only applies to oil tankers then it is not necessary for a liquefied gas carrier to have any oil record book onboard.
Yes, all ships to which MARPOL 73/78 applies must have an oil record book part 2 onboard.
So as to avoid possible cargo claims at the discharge port what should be maintained besides the cargo lashings?
The vessel itself
Hatch covers, hatchways and cargo hold ventilators
Cargo gear
The cargo
Which of the following options may be used as a brief summary of how to safely make high voltage equipment accessible?
Shed load, Earth (ground), disconnect, isolate
Disconect, isolate, earth (ground)
Shed load, isolate. Earth (ground)
Disconnect, earth (ground), isolate
The circuit diagrams illustrate four different methods of wiring between a Pt 100 temperature sensor and its signal processing electronics. Which of the wiring methods gives the best measuring accuracy?
Figure 2
Figure 1
Figure 4
Figure 3
A cargo of hard frozen, whole tuna is being loaded on a conventional reefer vessel. Select the best method of loading the cargo from the options given.
Use a rope net.
Use a pallet board.
Use rope slings.
Packed in cartons.
A unit of alcohol is equal to which of the following measures?
A half pint (284 ml) of lager / light beer or a small glass (125 ml) of wine
A pint (568 ml) of lager / light beer or a large glass (275 ml) of wine
A large glass (275 ml) of wine or a measure (30 ml) of spirit
A measure (30 ml) of spirit, if taken with a glass of water
Personnel in a high voltage switchroom smell ozone. This is likely to indicate which of the following?
Transformer overload
Vacuum circuit breaker problems
Arcing at badly connected bus bars
Air circuit breaker problems
What basic information do we get from the pump system curve?
We get information about the pump’s suction height and liquid flow.
We get information about the pump’s liquid flow.
We get information about the pump’s lifting height and liquid flow.
We get information about the pump’s ampere, delivery pressure and suction height.
The sign on the image indicates:
This is the location where you should operate pyrotechnic equipment (Buoyant smoke signal, hand flares and rocket parachute flares) In case of an emergency
Location of lifebuoy with self-igniting light and self-activated smoke signal
Location where you should throw lifebuoys in case a man- over-board situation occurs.
Rescue zone
here do you find detailed information and specific technical requirements for life-saving appliances?
SOLAS
Safety Management System
ISM Code
Life-Saving Apliance Code (LSA Code)
What is the procedure if a tank lorry containing dangerous goods is not clearly marked?
As long as the driver looks ok, load the cargo
Ask the driver to write a declaration of contents and load the vehicle
Load it, usually tank lorries are not clearly marked
Refuse to load the vehicle
On a Container vessel, with regard to raised deck sockets, what must be ensured prior to commencing cargo operations?
They must be clean and free of internal debris
They must be greased
They must be ready to secure the turnbuckles
They must be well painted
During the survey of Long Range Identification and Tracking (LRIT) equipment, which document must be available to the surveyor to demonstrate compliance with SOLAS?
The Certificate of Compliance with SOLAS V/19-1, bearing the serial number of the equipment installation.
A report giving the result of the Performance Test, issued by the manufacturer in compliance with the Flag State Authority requirements.
A report giving the result of the Conformance Test, issued by the Classification Society on behalf of the Flag State Authority.
A Statement of Installation and and Testing by the Approved Service Provider in compliance with SOLAS V/26-4.
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
How often should boiler water tests be carried out on a steam boiler?
Every hour.
Every day.
Every fortnight.
Every week.
Chemical tankers of 20,000 tonnes DWT or above, with a keel laid on or after 1st July 1986, when carrying flammable products with a flashpoint not exceeding 60 degrees Celsius, such as those listed in chapters 17 and 18 of the International Bulk Chemical Code, are exempt from the requirement to be fitted with and use an inert gas plant provided certain conditions are met. Which of the following is a summary of those conditions?
The cargo tank does not exceed 1250 cubic metres capacity / each tank washing machine nozzle does not exceed 12.5 cubic metres per hour delivery rate / the total wash water input to the tank from all tank washing machines does not exceed 90 cubic metres per hour.
The cargo tank does not exceed 3000 cubic metres capacity / each tank washing machine nozzle does not exceed 17.5 cubic metres per hour delivery rate / the total wash water input to the tank from all tank washing machines does not exceed 110 cubic metres per hour.
The cargo tank is greater than 3000 cubic metres capacity / each tank washing machine nozzle is capable of delivering a minimum of 17.5 cubic metres per hour / the total wash water input to the tank from all tank washing machines must be at least 110 cubic metres per hour.
The cargo tank is greater than 1250 cubic metres capacity / the number of tank washing machines in use at any one time must be such that no more than 17.5 cubic metres per hour is delivered / the minimum quantity of wash water delivered in the washing operation must be greater than 110 cubic metres.
Passenger ships shall either carry automatically self-righting liferafts or canopied reversible liferafts. What does it mean that a liferaft is automatically self-righting?
The liferaft will automatically turn back into an upright position when it is empty of people
One person can manage to turn the liferaft back into an upright position
The liferaft will automatically turn back into an upright position when it is fully loaded with people
It means the same as self-righting lifeboats
What would be considered as an acceptable range for the p-alkalinity in a low pressure auxiliary boiler?
0- 100 ppm CaCO3.
300 - 600 ppm CaCO3.
600 - 1000 ppm CaCO3.
100 - 300 ppm CaCO3.
What has the Bosun done to prepare the anchoring?
He has disengaged the windlass and put the brake on
He has put five shackles in the water
He has hoisted the anchor ball
He has lubricated the spurling pipe
What is the correct definition of "a mooring line"?
A loop in a rope
A line for a block
A thick rope to tie up the ship
A line for the anchor
What is the signal used by a life saving station or rescue unit indicating that distress signals are observed at night time ?
3 Yellow star rockets
3 White star rockets
2 Blue star rockets
1Green star rocket
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.