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Tests en ligne : Test online CES 5.1 for Ch-Eng / 2nd-Eng
Test en ligne
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Le test consiste en des questions aléatoires sur un sujet sélectionné.
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Which of the following parameters does an explosimeter measure?
The TLV-TWA in the ambient air
The percentage of the L.E.L. in the ambient air
The TLV-STEL in the ambient air
The percentage of flammable fumes in the ambient air
Among the additives used to improve the effectiveness of water in the fight against fire there are the moisturing ones. What is the task they perform?
They reduce the surface tension of water
They protect the fuel with a thin covering that holds up the ignition
They increase the viscosity of water
They protect the fuel with a thin covering that holds up the ignition and they increase the viscosity of water
*Which one of the following methods can be adopted for the internal divisional bulkheading of the accommodation and service spaces of a cargo ship?
All these methods can be adopted
Fitting of an automatic sprinkler extinguishing system, with no restriction on the type of all internal divisional bulkheading
Construction of all internal divisional bulkheading of "B" or "C" class divisions, without the installation of an automatic sprinkler extinguishing system
Fitting of a fixed fire detection system in all spaces in which a fire might be expected to originate, with no restriction on the type of internal bulkheading, except that in no case must the area of any space bounded by an "A" or "B" class division exceed 50 m2.
*Which of the following is a characteristic that is required for a "class A" bulkhead or deck ?
it stops the spreading of smoke and flames during one hour
it is made out of at least 75% incombustible materials
it withstands a temperature of 750 ?C for one hour, with no deterioration
it is made out of at least 50% incombustible materials
How does low expansion foam act as an extinguishing agent when dealing with oil fires?
By smothering and also by providing some cooling
By cooling only
The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire
By smothering only
*As a general rule, where are pressure containers for the gas of a fixed fire-extinguishing system stored?
In cold storage
Above the bulkhead deck
In the space which is to be protected
Outside the space which is to be protected
On a UMS classed vessel the high pressure fuel pipes are covered with steel flexible shrouds with drainage.What is the main purpose of the protection ?
To protect personnel from high temp surface.
In case of bursting pipe, to avoid oil spray hitting adjacent high heat surfaces of exhaust pipes etc.
To protect the pipes against mechanical damage.
To collect minor oil leakage.
What is a "fire wire"?
A wire for pulling fire-hoses up to the top bridge
A wire for pulling burning ships off the pier
A wire for securing smoke divers
A wire for handling fire buckets
What is meant in mariphone traffic with a coast-station by a ”personal call”:
a telephone conversation, stating name and address for account of the shore subscriber
a telephone conversation with a person whose name is known, department or extension on the telephone number given
a phone-call, stating name and address, with a person who has no telephone himself
Don't know
A Cargo Ship Equipment Certificate will be issued for :
A period not exceeding 24 months
A period not exceeding 48 months
A period not exceeding 6 months
A period not exceeding 12 months
What do we mean with a IOPP certificate?
With IOPP certificate we mean International Oil Pollution Prevention certificate and the ship is classed to prevent oil pollution
With IOPP certificate we mean International Oil Pollution Prevention certificate and it is to prevent oil pollution
There isn’t any IOPP certificate on gas carriers
With IOPP certificate we mean International Oil Pollution Prevention certificate and the certificate prevent oil pollution from the ship
Which one of the following materials belong to Class 4.1, according to the IMDG code?
Toxic substances
Organic peroxides
Any flammable substances
Solid combustibles
What would you say about a ship which is course unstable?
When you apply rudder, it will take time before she answers to it.
When you put rudder amidship, she will continue on a straight course.
It will maintain course no matter how much rudder you apply.
When you apply rudder, she will continue to turn when the rudder is put amidship, and may even increase rate of turn.
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%
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
How much time can be saved by use of weather routing?
2%
Impossible to say
4%
6%
*The lifebuoy not making part of quick-release arrangement must have a weight of at least:
0,5 kg
1kg
1,75 kg
2,5 kg
What is the meaning of this symbol ?
Lower lifeboat to water
Start engine
Start water-spray
Start air supply
What is the meaning of this symbol ?
Survival craft pyrotechnic distress signals
Radar transponder
EPIRB
Survival craft portable radio
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?
The use of oars and sails for survival crafts.
The method and use of on-board communication system.
The method of release from launching appliances.
Correct donning of fire protective clothing.
Who is the responsible person for the safety of the ship and all those onboard?
The Master
Master, Chief Officer and Chief Engineer
The company
The authorities in each different port the ship calls
Why should there be checklists or work permits for hazardous operations?
To locate crew members in case of emergencie
So we know who to blame when something goes wrong
To make sure the job is done under controlled conditions
Because it is required by USCG (US Coast Guard)
If a seaman has to walk across a stow of cartons containing perishable foodstuffs what should he do to minimise the risk of damage to the contents? Select the most appropriate option from those given.
He should step on the middle of the cartons.
All parts of the carton are of equal strength and therefore it doesn't matter which part he steps on.
He should step on the edges of the cartons.
He should step on the corners of the cartons.
Part of the outer surface of a refrigeration compressor crankcase and the refrigerant return line near the compressor ice up heavily during normal operation. Which of the options given is the most likely cause of this problem?
The oil separator is not functioning correctly and is allowing lubricating oil to pass into the system.
The seawater flow control valve for the condenser is faulty allowing insufficient cooling water flow.
The superheat control setting for the thermostatic expansion valve is set too low.
The filter drier unit in the liquid line is partly blocked.
On a General Cargo vessel, to what Proof Load would a 16T SWL derrick be tested?
20T
18T
22T
24T
What will alarm cargo receivers to the possibility of cargo damage on a Bulk Carrier?
Commencing discharge without presentation of bills) of lading
Disallowing cargo interests on board
Commencing discharge in the absence of a cargo surveyor
The presence of hatch cover sealing tapes
Choose the option which is most likely to result in erosion of the tubes in a heat exchanger.
Cooling water velocity too high.
Cooling water temperature too high.
Cooling water pressure too high.
Rate of heat transfer too high.
Why are crankcase heaters fitted to freon compressors?
To stop oil from thickening.
None of the mentioned alternatives.
To prevent freon condensing when the compressor is stopped.
To boil off any water.
Which type of cargo tanks are almost exclusively applied to LNG ships and are rarely fitted to LPG ships?
Type "B" spherical tanks.
Independent type "A" tanks.
Self-supporting prismatic tanks.
Independent type "C" tanks.
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm , connected in series. Calculate the equivalent resistance R(S) .
R(S) =18 ohm
R(S) =1,5 ohm
R(S) = 72 ohm
R(S) = 4 ohm
In the event of a severe scavenge fire, which of the following is most likely to be seriously damaged?
Piston rod and stuffing box.
Exhaust valve.
Crosshead bearing.
Piston crown.
An engine room rating notices that the guard on a running pump is hanging loose due to a missing bolt on the support bracket and it is catching the shaft coupling. What is the best action to take as a repair method?
Place a sheet of metal in front of the guard to deflect any parts that may fly off as a temporary repair.
Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.
Try and fit a new bolt while the pump is running to permanently fix the guard in place.
Fasten the guard back in place with a piece of rope with the pump running as a temporary repair.
What necessary precautions should be taken before entering a tank or an enclosed space?
Make sure that the tank/ enclosed space is gas free, ventilated and the oxygen content is measured. O2 content shall be 21% before entering the tank/ enclosed space
Bring a flashlight and put on safety shoes
Remember to have a colleague standing by to assist you if any problems
Use a breathing apparatus if the oxygen level is below 21%
What would the Master require of the Chief Officer?
The Master would require the Chief Officer to organise a lifeboat drill
The Master would require the Chief Officer to repair the lifeboat engine
The Master would require the Chief Officer to test the lifeboat engine
The Master would require the Chief Officer to replace the lifeboat painter
How often shall the master review the safety management system?
Every month
Bi-annually
Every 5 years
Annually
Semi-pressurised liquefied gas carriers are often fitted with direct, single stage reliquefaction plants for cooling the cargo and dealing with boil off vapours. What cooling medium is usually used in the condenser to condense the cargo vapours for this type of system?
Fresh water.
Sea water.
Refrigerant gas.
Air.
You have just synchronized a second alternator onto the main switchboard, and want to equally share the load between the "running" and incoming alternators. What would you do first?
Adjust voltage rheostat for the incoming alternator on the front of the switchboard
Lower the governor speed controller of the incoming alternator and increase the governor speed controller of the alternator already on the switchboard
Trip the circuit breaker of the incoming alternator and check the voltage and speed adjustments before trying again
Raise the governor speed controller of the incoming alternator and reduce the governor speed controller of the alternator already on the switchboard
What will a cadet find in the engine room store?
A Cadet will find the emergency steering gear in the engine room store
A Cadet will find the spare anchor in the engine room store
A Cadet will find the spare propeller in the engine room store
A Cadet will find machinery spare parts in the engine room store
What might safely be used to prevent a load swinging when lifted by a crane?
Personnel underneath the load, holding onto it and restricting its movement.
Guide or tag lines, tended from a safe location.
A cargo net.
Short, jerky movements on the ship's controls.
Approximately how many days will fresh cucumbers usually last in cold storage?
28 days
1day
4 days
18 days
Which of the following is a definition of the "Proper Shipping Name", as found in the IMDG Code?
The name to be used in any documentation relating to the transportation of the dangerous substance, material or article, such as on forms, labels and placards.
The correct chemical name of a potentially hazardous material, as identified from the Chemical Cargo List.
The name under which a dangerous material, substance or article is
For how long must you save the printouts from the ODME?
Until the end of the voyage.
3 years.
5 years.
3 months.
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
What type of heat exchanger is shown?
Evaporative
Bundle and stack
Plate
Shell and tube
How would you report a person lost overboard?
"Man overboard"
"A person has fallen overboard"
"We have lost a person overboard"
"We have lost a person overboard in position….."
What do the letters "VOC" stand for when discussing types of oil cargo?
Volatile Organic Compound.
Valuable Oil cargo.
Volatile Oil Cargo.
Volumetric Oil Calculation.
How many hours before departure should the ship's steering gear be checked and tested?
Within 96 hours
Within 48 hours
Within 12 hours
Within 1 hour
What effect will a low operating temperature of the boiler feed water system have on the condition of the feed water supplied to a high pressure boiler?
It will cause the amount of chlorides in the feed water to increase.
It will cause the amount of dissolved oxygen in the feed water to increase.
It will cause the amount of total dissolved solids in the feed water to increase.
It will cause the pH value of the feed water to increase.
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?
Cargoes of frozen beef and chilled beef have approximate carriage temperatures of minus 18 and minus 1 degree Celsius respectively. Greater care is required when carrying chilled beef as it is more sensitive to deviations from, and requires finer control of, its recommended carriage temperature. Which option best completes the following statement? "This additional care is worthwhile because…
...carrying chilled beef is a modern innovation."
…chilled beef is healthier for consumers."
…chilled beef can be kept longer than frozen beef."
…chilled beef commands a much higher price in the market."
Which of the following statements will direct a fire-fighting team to the source of fire?
Fire in the accommodation
Fire on deck
Fire in No. 3 cargo hold, port side, forward
Fire in the engine room
Some charters will require a reefer vessel to carry a general cargo, for example paper rolls for the manufacture of fruit cartons, on the return, 'empty' leg of a voyage. Select from the options given, the main problem associated with carrying paper rolls on a reefer vessel in this way that the deck officers should be aware of.
Paper rolls must be handled with care to avoid damage to the ends of the rolls.
Paper rolls are sensitive to wetting.
The paper rolls are heavy and this may result in overload of the decks.
The hold insulation and vent trunking can be damaged if the paper rolls are improperly secured.
The abbreviation "COW" applies to a phase of oil tanker operations. What does it stand for?
Computer Operated Washing
Callibration (of) Oil / Water (interface)
Crude Oil Washing
Completion of Washing
Which of the following foods will increase the cholesterol levels in the blood if eaten in excessive quantities?
Pork
Chicken
Vegetables
Fish
What is the maximum period between the sampling/testing of the moisture content of a solid bulk cargo and the loading of that cargo into a bulk carrier?
It must always be conducted immediately before loading
A test is not required each time of loading
Testing must be carried out on a random sampling basis.
A maximum for seven (7) days, when there has been no change in the moisture content due to rain or snow
A medium speed diesel engine, operating on heavy oil has suffered repeated exhaust valve failure. Upon inspection damage is noted on the underside of the valve resulting in some cases in holes passing through the valve even though the seating face appears hardly damaged. Which of the given options is the most likely cause of this type of damage?
High temperature corrosion due to high vanadium content in the fuel oil.
Failure of the valve rotators causing distortion of the valve seat.
Incorrect tappet (rocker arm) clearance preventing the valves from closing properly.
Cold temperature corrosion due to high sulphur content in the fuel and incorrect grade of cylinder lubricating oil.
You are paralleling two alternators and the pointer of the synchronoscope slowly stops rotating and remains stopped in one position before the circuit breaker is closed. This would indicate:
The voltage of the incoming alternator is the same as that of the main switchboard
The incoming alternator is in phase with the switchboard, but the frequency is not the same
The synchronoscope is not functioning properly and should be checked
The frequency of the incoming alternator is the same as that of the main switchboard
What actions should the Officer of the Watch take when the ship's steering gear fails?
Stop engines and display the NUC signal
All of the suggested answers
Call the Master and advise him of the situation
Request the engine room to check the steering gear
You are receiving stores, including some cartons of frozen seafood. You spot a watermark around a particular carton. What might this be a sign of?
That the produce has been allowed to partially thaw at some stage during trans-shipment
That the carton has been previously used to transport another product
That the fish inside the carton are oily
That the carton has been standing in the open air and mositure has been absorbed into the packaging
When we are measuring level of liquids with a conductivity level indicator, the name of the sensing device is:
Electrodes
Displacement probe
Ionization chamber
Capacitance probe
Where is "AFT", in the figure?
Aft is B, in the figure
Aft is D, in the figure
Aft is A, in the figure
Aft is C, in the figure
The lights displayed here indicate that this is one of two types of vessel. What are the two options?
A power-driven vessel engaged in towing, more than 50 metres in length, or less than 50 metres in length and showing a second masthead light, length of tow under 200 metres, seen head-on OR a power-driven vessel underway. Less than 50 metres in length and displaying the second all-round white masthead light, seen head-on.
A vessel engaged in fishing, restricted in her ability to manoeuvre, shooting nets OR a vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres, towing vessel restricted in her ability to manoeuvre, seen head-on.
A power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres, towing vessel and tow restricted in their ability to manoeuvre, seen head-on OR a power-driven vessel underway, more than 50 metres in length, or less than 50 metres in length and showing a second masthead light, restricted in her ability to manoeuvre, seen head-on.
A vessel engaged on pilotage duty, engaged in deploying or recovering a pilot, seen head-on or a power-driven vessel underway, lmore than 50 metres in length or less than 50 metres in length and showing the second masthead light, seen head-on.
What would indicate the onset of Parametric Rolling?
When the wave encounter period approaches the natural roll period of the ship
When twice the wave encounter period approaches the natural roll period of the ship
When wave heights experienced from either quarter exceed 6 meters
When wave heights experienced from the bows exceed 6 meters
What should be done immediately if during the voyage the temperature of bulk coal exceeds 55?C?
Seal the hold and cool its boundaries using seawater
Notify the harbour authorities at the port of destination
Seal the hold completely and monitor the cargo using suitable instruments
Notify the ship owner and/or charterer
A main steam boiler is to be shut down for an extended period. Which of the following methods for the lay up is best suited to maintain the boiler in good order?
Lay the boiler up dry by just draining all of the water and closing all the access doors.
Lay the boiler up wet completely filled with clean distilled water with a slight head on the steam drum to avoid any air pockets.
Lay the boiler up dry by draining all of the water and fitting heaters in the drums to prevent condensation forming which may result in corrosion.
Lay the boiler up wet with normal working water level and chemical treatment maintained.
What is the time limit for abandonment of passenger ships?
15 minutes from the time the abandon ship signal is given
There is no time limit
2 hours from the time the abandon ship signal is given
30 minutes from the time the abandon ship signal is given
Cargo Gear/Cranes should at regular intervals be thoroughly examined and load tested by a recognised company/yard. How often should such examination/load test take place?
Every 5th year.
Every 4th year.
Every 2 1/2 year.
Annually.
What is the name by which the regulations which prevent and control pollution from ships are known?
The International Shipping Pollution Laws.
SOLAS
MARPOL
The ISP Code.
There are two basic types of turbocharging systems: constant pressure and pulse. The main difference between the two is in which of the following?
The arrangement of exhaust piping and exhaust gas receiver.
The casing of the turbocharger.
The arrangement of the scavenging air coolers.
The scavenging valves of the engine.
The pressure inlet to a pressure gauge is varied from zero to full scale and back to zero again. The output (indicating pressure) versus true pressure is shown in the diagr.The non - coincidence(mis - match) of loading and unloading curve is due to internal friction in the instrument. What do we call this phenomenon?
Dead band
Threshold
Hysteresis
Resolution
What does a "compactor" do?
It compresses and forms raw meat into burgers, patties and other pre-formed shapes prior to packing and freezing.
It disposes of waste material through high-temperature combustion.
It crushes and compresses garbage, such as food packaging, into a more manageable shape and form prior to disposal.
It crushes and grinds food waste into small particles that can be washed overboard as "grey water".
Why should heavy-duty footwear, with non-slip soles and re-inforced toecaps, that fully cover the foot, be worn when working in the galley and storerooms?
To avoid the possibility of injury if a sharp or heavy object is dropped, or a hot liquid is spilled, or the floor becomes slippery.
Because footwaer of this type will support the wearer better and avoid aches and pains developing in the feet and lower legs.
Because you never know when you may have to go out on deck.
Because footwear of this type eliminates the possibility of fungal foot infections through exposure to moist and humid conditions as may be experienced when working around a galley range for prolonged periods.
What are the immediate duties of the bridge Officer of the Watch when the ship suddenly runs into a fog bank?
Commence sounding the fog signal and reduce speed to Slow Ahead
Commence sounding the fog signal and call the Master and wait for him to arrive before taking any further actions
Commence sounding the fog signal and if the radar indicates no echoes in the vicinity, proceed at the normal speed until ships are detected on the radar or until the fog lifts
Commence sounding the fog signal, engines on standby, call the Master and lookout, if not already on duty
What advantages does the radar have over the eye?
Subject to night adaptation
Simplifies the overview
Poor at assessing distance
Degradation through glare
A refrigeration plant is short cycling even though there is plenty of refrigerant in the system and all of the rooms are above temperature. From the options give select the one which is the most likely cause of the problem?
Low oil level in the sump causing the automatic low oil pressure cut out to operate.
Blocked filter drier causing the automatic low pressure cut out to operate.
Insufficient cooling water flow through the condenser causing the automatic high pressure cut out to operate.
Ice formation in the meat room evaporator coil causing the automatic low pressure cut out to operate.
In which situation might you have to use non-verbal communication with passengers?
There is an explosion in the cargo hold.
You are outside in a severe storm.
The ship's electrical system has failed.
The ship's communication system is not working.
What is the most frequent used insulation on cargo tanks?
Expanded Perlite.
Mineral wool.
Polystyrene.
Polyurethane.
When operating a steam boiler burner unit what is the best method for evaluating that the correct amount of excess air is being supplied to the furnace?
The colour of the flame in the furnace.
The reading from the flue gas oxygen analyser
The length of the flame in the furnace.
The colour of the exhaust leaving the uptake.
Port State Control Officers are authorised to:
Detain ships that are not meeting the requirements for a minimum of 30 days
Regularly inspect ships known to meet the requirement
Inspect and detain ship that are not meeting the requirements until they are able to demonstrate compliance with the regulations
Sign oil record book entries
A ship's electrical system operates at 60Hz but when connected to shore supply it is supplied with 50Hz. Which of the following would you expect?
Electric motors will run at increased speed and will tend to overheat.
Generators are more sensitive to reverse power faults.
Electric motors will run at reduced speed and will tend to overheat.
Earth faults are more likely.
"Which of these precautionary measures can reduce the threat of piracy, if implemented?"
Plan to arrive at port at night.
Sail at full speed.
Turn off all of the ship’s lights at night.
Stay at least 15nm away from the shore.
What is the purpose of the Oil Mist Detector?
To detect the circulating oil
To avoid stuffing box leakages
To avoid hot spots in crankcase
To detect oil mist (explosive atmosphere in the crankcase).
Before engaging the Turning Gear, precautions should be taken to:
Open the indicator cocks and open the starting air supply
Shut off the starting air supply and open the indicator cocks
Transfer M/E control from control room to emergency control console of engine
Close the inlet and outlet valves for cooling water
The output pressure of a diesel engine lubricating oil pump is regulated by:
A relief valve.
A metering valve.
A variable speed pump drive.
An orifice.
The fuel oil separator (ALCAP) bowl discharge is not working properly
Opening water function missing.
Broken water seal.
Water outlet valve is not closing properly.
Back pressure in oil outlet too high.
When a low pressure distilling plant is operated with less than the designed vacuum, the:
Capacity increases
Heat level rises
Heat level drops
Scale formation decreases
Tank (4) in the outlet piping is designed to:
Provide an air cushion
Take up the difference in water volume at changes of temperature
Maintain a constant head in the system
Prevent air accumulation in the cooling water system
If the temperature decrease, what will happen with the interface in the bowl ?
Broken water seal, oil outside the top disc.
Decreasing of capacity.
Will have no effect on interface.
Interface towards center.
We have a problem with surging in the turbocharger. Which of the following could be the cause?
Dirty scavenging air cooler on the air side.
The lubrication oil pump is malfunctioning.
Worn out bearings on the turbocharger.
Dirty rotor blades.
For which of the following systems would you install a PID-controller
Gas measurement
Flow-control
Pressure-control
Temperature-control
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.