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Tests en ligne : Test online CES 5.1 for 3rd-Eng/4rd-Eng
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As regards the launching and recovery arrangements for rescue boats which is required among the following?
Launching shall be possible at the ship's headway speed up to 8 knots in heavy weather
The release mechanism shall be of an automatic type approved by the flag state Administration
Rapid recovery shall be possible with the boat's full complement of persons and equipment
Embarkation and launching arrangement shall be such that the rescue boat can be boarded and launched in less than 10 minutes
How many buoyant smoke signals are carried in each liferaft with SOLAS A pack?
Nil
2
6
4
*At what temperature do the sprinklers come into operation in accommodation and service spaces ?
Over 100 ?C
Within 50 ?C to 60 ?C
Over 150 ?C
Within 68 ?C to 79 ?C
*Which of the following corresponds to the method of protection "I C" in the accommodation and service areas of a cargo ship?
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
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 150 m2.
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
For carbon dioxide fire-fighting systems for machinery spaces the fixed piping system shall be such that: (SOLAS II-2/5.2.4)
70% of the gas can be discharged into the space within one minute
100% of the gas can be discharged into the space within two minutes
100% of the gas can be discharged into the space within three minutes
85% of the gas can be discharged into the space within two minutes
What is the minimum number of "international shore connections" that should be provided on vessels of 500 gross tonnage and upwards?
0: such connections only have to be provided on vessels over 1000 gross tonnage
3
1
2
Which of the following items SHALL be included in a fire drill?
checking the operation of fixed fire-extinguishing equipment
reporting to stations and preparing for the duties described in the muster list
operating one of the fixed fire-extinguishing equipment
checking capability of persons to prevent panic
How often shall crew members participate in fire drills?
Once every year
Once every 6 months
Once every week
Once every month
Which one of the listed requirements regarding abandon ship and fire drills do not correspond to present regulations?
Each member of the crew shall participate in at least one abandon ship drill and one fire drill every month
A training manual shall be provided in each crew messroom and recreation room or in each crew cabin
On all short international voyages, muster of passengers shall take place as soon as possible after departure
On all international voyages, except short voyages, muster of passengers shall take place within 24 hours after embarkation
DSC-transmissions with the tele-command ’test’ can:
be sent by a VHF-installation on the DSC-distress channel
not be sent by VHF-installation
Don't know
be sent by a VHF-installation or the SAR-channel
The display of the DSC-controller on board is showing the following lines: RX: 002442000 ; Ch87 ; D Sellcall Routine We’re asked to listen on:
Radio telephony-channel 7 in the 8 MHz band
VHF- channel 87
VHF- channel 16
Channel Delta of the coast station
If a ship in the MF-band wants to have a DSC-connection with a coast-station (no ‘distress alert’ or a test alert) the following frequencies are chosen:
TX: 2177.0 kHzRX: 2189.5 kHz
Don't know
TX: 2177.0 kHzRX: 2177.0 kHz
TX: 2189.5 kHzRX: 2177.0 kHz
What is the alcohol content in the blood permissible under US legislation before it is defined as intoxication?
0,01 %
0,1 %
0,07 %
0,04 %
What is the function of an OSC (OPA-90)
Incident Commander
Officer of Spill Command
Spill management
On the Scene Co-ordinator
Abdominal Thrust is the name on a technique which involves applying a series of thrusts to the upper abdomen in an attempt to force air out of a choking casualty's lungs. How to perform this technique?
Remove the obstruction and restore normal breathing.
Lay casualty on a hard surface, e.g. deck, and press firmly and rapidly on the middle of the lower half of the breast bone.
Stand behind the casualty. Clench your fist with the tumb inwards in the center of upper abdomen. Grasp your fist with your other hand and pull quickly inwards.
Let the casualty grab a list and hang up right down for a period of minimum 5 minutes.
Which PPM is allowed for discharging of "Bilge Water" overboard?
100 PPM
0PPM
50 PPM
15 PPM
Where can a ship expect piracy to take place?
At the south end of the Red Sea
In American waters
All over the world
In Far East waters
The buoyancy and the stability of a lifejacket is sufficient to turn the body of an unconscious person in the water from any position to one where his mouth is clear of the water in not more than:
5 sec
1sec
30 sec
10 sec
Which item among those below is included in the normal equipment of every rescue boat ?
watertight receptacles containing water for each person
a painter attached to the release device and placed at the forward end of the boat
two tin-openers
one set of fishing tackle
How would you know how many people a lifeboat is supposed to hold?
Fill the boat up until no more space is left.
Ask one of the deck officers
No fixed number as it depends on the people's size
The number of persons should be clearly stated on the outside of the boats bow.
An alarm signal consisting of seven short blasts followed by one long blast is sounded by the ship's whistle and the alarm bells. What are you to do?
Go to your lifeboat station (muster station).
Report on the bridge (deck crew) or engine control room (engine crew) for further orders.
Go to your fire station.
Go to (or remain in) your cabin and wait for further orders.
Which of the following detailed explanations should be mentioned in the Training Manual ?
The use of escape routes and other escape methods
The hazards of exposure and the need for warm clothing
The use of navigational equipment for survival crafts
The use of surface to air visual signals to be used by survivors
What special safety measures are required by a seaman when working aloft on a stage?
Safety harness with a rope secured to a safe point above.
No special safety measures required.
A safety harness secured to the stage.
Helmet, safety shoes and gloves.
What is the purpose of explosimeters?
Measure the amount of explosive gases in % of LEL.
Measure electric charging in the atmosphere.
Check how much time you have before an explosion.
Check the power of the explosions in a combustion engine.
What is the correct lifting technique?
Legs bent, back bent, using both back and leg muscles to lift
Legs straight, back bent, using back muscles to lift
Legs bent, back straight, using leg muscles to lift
Legs straight, back bent and twisted to the right or to the left while lifting
Your vessel have been in collision and you are not sure if your vessel is sinking or not. How will you handle this situation?
Leave the vessel and stay not closer than 5 nautical miles.
Search for missing persons. Continue to monitor situation and prepare for abandonment in case it become necessary.
Wait and see how the situation is developing.
Make sure that the life boat has as much bunker as possible and make you course for nearest land.
A heat exchanger of the tube and shell type is used for cooling lubricating oil with seawater as the secondary fluid. Which of the options would indicate that the tube stack was becoming fouled (scaled or coked) rather than blocked?
An increased temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and an increase in the temperature difference between the lubricating oil inlet and outlet.
An increase in the temperature difference between the seawater inlet and outlet and a reduced temperature difference between the lubricating oil inlet and outlet.
During replacement of the main bearing shells on a medium speed diesel engine it is necessary to remove both the top and bottom half shells. From the options given select the method that is most commonly employed to remove the bottom half shells from the bearing pockets on an engine with a traditional bedplate?
Jack up the crankshaft and use a suitable punch to loosen the bottom half shell in the pocket so it can be lifted out with a pair of grips.
Fit a driver in the crankshaft oil hole which bears against the edge of the bottom half shell and turn the engine.
Turn the engine to a position where the crank webs are clear of the shell and knock the bottom half shell out axially using a suitable punch.
Remove the crankshaft so that all the bottom half shells can be removed at the same time.
LNG is made up of a number of saturated hydrocarbons the greatest percentage of which is Methane. What are saturated hydrocarbons?
Saturated hydrocarbons contain atoms of hydrogen and carbon and also other elements such as chlorine.
Saturated hydrocarbons contain hydrogen and carbon atoms with single carbon to carbon bonds.
Saturated hydrocarbons are compounds of hydrogen and carbon which contain the maximum amount of water vapour.
Saturated hydrocarbons contain hydrogen and carbon atoms with double carbon to carbon bonds.
Every person onboard ship has a responsibility for safety and security. General house-keeping rules should be followed. Which of the listed rules is the most important onboard a tanker?
Never carry lighters or matches on the tank deck.
Always wear safety shoes on deck..
Always use the handrails when going up or down ladders.
Always use gloves when operating portable grinders and chipping machines.
What basic information do we get from the pump's flow-head curve?
We get information about the NPSH.
We get information about the pump-s lifting height and liquid flow.
We get information about the pump-s back pressure.
We get information about the pump-s suction head.
On a Bulk Carrier, when should the drainpipe covers fitted to hatch coamings drains be secured?
After securing the hatch covers
During the ballast passage
In the event of a cargo hold fire
When heavy weather is expected
Choose the option which most accurately completes the following statement. The expansion tank in a closed cooling water system is designed to maintain a positive head on the system and also to……
Provide an air cushion
Reduce the water temperature
Reduce the water turbulence
Allow for changes in water volume due to temperature variation (expansion)
What should not be done when a container of liquid ammonia is on fire?
Restrict ventilation
Cool the container with water
Use a dry chemical fire extinguisher or carbon dioxide gas
Use self-contained breathing apparatus
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.
A transformer with 10:1 turns ratio and rated 50 kVA, 2400/240 Volts, 60 Hz, is used to step down the voltage to a distribution system. The low tension voltage is to be kept constant at 240 Volts. What load impedance connected to the low-tension side will cause the transformer to be fully loaded?
1.15 Ohms
230 Ohms
115 Ohms
2.3 Ohms
On the figure there are four possible definitions of the term "STARBOARD BOW" given. Which one is the correct one?
Starboard bow is given by D on the figure
Starboard bow is given by C on the figure
Starboard bow is given by B on the figure
Starboard bow is given by A on the figure
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
Why are duplex filters usually employed in the lubricating oil system of an auxiliary diesel engine?
Changing of the filter element can be carried out without interrupting engine operation.
The pressure drop is half that of a single filter unit.
Filter blockage will not occur.
It gives better filtration of the oil.
What is the traditional seaman's saying that suggests the procedure to follow when carrying provisions around the galley and storerooms and up and down stairways?
"One hand for the ship and one for yourself".
"One hand for the Captain and one for the Cook".
"One hand for the ship and one for the stores".
"Keep your hands to yourself".
Once a hatch is sealed, what prevents sparks from entering the hold of a Bulk Carrier?
Air pipes
The hatch seals
The ventilator grill
Ventilator trunking
What is mean by bulk Grain cargoes have a low angle of repose?
Likely to produce toxic gas
Always stable
Unlikely to shift
Liable to shift
Gas detectors are widely used on liquefied gas carriers. Before using a portable combustible gas indicator which has not been used for a period of a few hours what action should be taken?
Just renew the batteries. A calibration is only required if the instrument gives false readings.
Just check the filters. If the sample is free to flow the indicator will work correctly.
Just carry out a zero check and adjustment. If the instrument reads zero correctly it will also read correctly throughout the scale.
Always carry out a full calibration and battery check.
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
A vehicle of length 4.85m; width 1.55m; weight 3200 kg. is to be loaded with a door-to-door clearance of 12cm and bumper-to-bumper clearance of 30cm. What would be its uniform load density?
0.0425 mt /sq. m.
0.372 mt /sq. m.
0.425 mt /sq. m.
0.469 mt /sq. m.
What must loading instruments on bulk carriers of 150m in length or more display?
Depending upon what cargo is carried permeability of the foremost cargo hold
Hull girder shear forces
Ultimate strength of main deck plating
Breaches in the hull
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.
Some centrifugal cargo oil pumps are designed with an automatic stripping system, which allows the cargo oil tank to fully discharge its contents. By what principle does such a stripping system operate?
On the basis that, if cargo vapour can be stopped from entering the cargo pump suction inlet, the flow will continue without cavitation.
By automatically reducing the rate at which oil cargo enters the cargo pump, such that any vapour lifted along with the liquid does not cause a loss of suction.
By the optimum size and positioning of the suction inlet that feeds the automatic stripping system, which ensures that the cargo oil tank is discharged to the maximum possible extent.
On the principle that if the suction is fitted low enough in the cargo oil tank and a specified minimum trim is maintained, suction will be available until the tank is completely discharged.
What name is given to the "energy" that a person "burns" during the day and which is replaced in the amount and type of food he eats?
Cellulose.
Callibres.
Canapes.
Calories.
What lights are required on an inconspicuous, partly-submerged vessel or object of less than 25 metres in breadth (other than a dracone) being towed?
A flashing yellow light on the tow, where it can best be seen.
One all-round white light on the tow where it can best be seen.
No lights are required on a tow of this description.
One all-round light at or near the forward end and one at or near the after end of the tow.
On a RoRo vessel, what should be done when cargoes that transmit stack loads are to be loaded onto the vessel's decks or hatch covers?
Weld additional steel plates to the deck and/or hatch covers where stack loads are transmitted
Load the cargo under-deck instead
Stow the cargo on timbers of sufficient thickness so as to distribute the stack load
Jim
g
d
a
h
On a Container vessel, why are twistlocks preferred as a means of securing containers compared to cone-based lashing systems?
Because cargo securing manuals do not allow for cone-based lashing systems
Because cone-based lashing systems are not type-approved by classification societies
Because cone-based lashing systems are more prone to failure than twistlocks
Because twistlocks provide uplift resistance as well as horizontal restraint, helping to prevent containers from falling overboard in heavy weather
A power card taken from a diesel engine cylinder using a mechanical indicator has a flat top. Which of the possible actions given in the options is most likely to correct this irregularity on the power card?
Lengthen the cord for the indicator drum drive.
Lubricate the indicator piston and cylinder.
Shorten the cord for the indicator drum drive.
Change the indicator spring for one with a higher rating.
You are commencing the loading of a cargo of Caustic Soda solution to several tanks. What precautionary measures will you take to avoid pressure shocks within the pipeline system?
The jettyman must be advised to watch for signals as you start receiving product, in case he needs to shut down in a hurry.
All valves in the system will be fully opened before cargo is allowed to flow.
Valves will be opened in a controlled manner and loading will be started slowly, increasing only when the correct flow of cargo has been verified and product has reached all required areas of pipeline.
Vants from all cargo tanks must be verified as fully open, to allow any air in the lines and tanks to escape, thereby avoiding any build-up of pressure.
On a Container vessel, what will happen if an unsafe stevedore working practice in the United States is not corrected by ship's personnel?
The port will lodge a protest against the ship
The ship will be detained by the port state control authority
The ship will be prosecuted
The ship's personnel involved with cargo operations will be arrested
"Overshoot" is an expression related to a ship's steering ability. What is the correct understanding of this expression?
It is the way a ship turns when putting the helm in a hard over position
It is how many degrees of the compass a ship continues to turn after applying counter-rudder
It is the amount a ship moves forward after the engines are stopped
It is the way a ship continues to turn when the helm is put amidships
Which plan shows the position of the centre of gravity of every tank aboard the ship?
Capacity plan
Tank plan
General Arrangement plan
Pumping plan
What is the meaning of “remote mode” related to a slave controller?
The slave controller can be tuned by a hand carried remote controller
The slave controller can be in any mode of operation
The slave controller can be tuned from the engine control room
The slave controller receives the set-point from the output signal of the master controller
What is the delivery pressure of a centrifugal pump dependent on?
The liquid-s density and delivery head.
The pipe resistance.
The net delivery heads.
The NPSH (Net positive suction head).
When setting the tappet clearance (rocker arm clearance) on cylinder cover valves it is important that the engine is turned to the correct position. Select, from the options given, the engine correct position for this procedure.
Each cylinder in turn should be at top dead centre position when setting the valve clearances for that cylinder.
Number one cylinder should be at top dead centre position for setting the clearance for all of the valves on the engine.
The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam base circle.
The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam peak.
What would be the effect of a large GM on a ro-ro vessel?
The possibility of assuming an angle of loll
A stiff ship with a quick roll period
An adverse affect on seaworthiness
The possibility of capsizing
What is related to a high GM?
Decreasing righting moments
Increasing righting moments
Increasing angles of roll
Decreasing transverse accelerations
You are going to serve boiled potatoes with the evening meal at 18:00 hours. At what time should you have the potatoes ready?
17:30 hours
17:50 hours
17:00 hours
18:15 hours
The electric motor on one of your centrifugal pumps has for a period of time gradually been running at lower and lower Amp-load. The pump is still supplying water, but the pressure is reduced. Which of the below alternatives is probably the reason?
The pump is running at lower speed due to short circuit in the electric motor.
Inner diameter of impeller is bigger due to cavitations, or outer diameter reduced by erosion.
The pump has been more effective because the suction strainer has been removed.
The pump has suction from many places at the same time.
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..
A bulk cargo of steel coils is loaded and a number of the coils are noted by the Chief Officer to be rusted; what must the Master ensure?
Steel coils to be discharged
Clause the Bill of Lading with the reference numbers of the rusty coils and so make the Bill of Lading a "dirty" Bill.
No action needs to be taken.
Cargo temperatures measured on voyage
What should be the status of the suction and discharge valves when starting a centrifugal pump?
Suction valve open and discharge valve closed
Suction valve closed and discharge valve open
Both valves open
Both valves closed
What is the advantage of a transmitter with a narrow measurement range?
Do not need any calibration
Easy installation
Lower purchase cost
Better linearity and increased accuracy
What is the world-wide system operated by the US Coast Guard exclusively in support of search and rescue operations?
The Worldwide Maritime Mutual Assistance Programme (WMMAP).
The U.S. Command and Control Rescue (USCOMR) Service.
The International Search and Rescue Coordination System.
The Automated Mutual-Assistance Vessel Rescue (AMVER) System.
What type of cargo shall always be secured?
The driver must ask the crew to secure the vehicle and its cargo
Freight vehicles carrying dangerous goods and adjacent vehicles should always be secured.
No cargo or vehicles have to be secured if the weather conditions are favourable.
Tank lorries should always be secured.
Emergency instructions in appropriate languages shall be posted in passenger cabins. Which information shall as a minimum be included in the emergency instructions?
Escape routes and alarm signals
Name of cabin attendant
Where to find thermal protective aids
The method of donning life-jackets, escape routes and alarm signals
When securing a non-standardized portable tank what is a favourable securing angle that will prevent it from transverse sliding?
30 to 35 degrees
10 to 15 degrees
18 to 25 degrees
5 to 10 degrees
Which food group contains the most calcium per 100 grams of edible product?
Vegetables
Dairy products
Meat
Fish
Chemical boiling out is one method that is used for cleaning the waterside of a steam boiler. Select from the given options the likely circumstances under which this procedure would be considered necessary?
Contamination of the boiler water by oil.
Excess chloride levels in the boiler water.
Excessive sludge build up in the water drum.
Oxygen pitting in the steam drum.
In installations of INTRINSICALLY SAFE equipment it is required that all cabling should be separated from non-intrinsically safe equipment, and (where colour coding is relied upon) to be of a special colour. What colour is that?
Orange
Green/yellow
Red
Blue
During cargo operations, involving perishable cargoes, deck officers should be aware that the cargo is subject to the effects of the weather and ambient conditions. From the options given, select the one which is likely to cause the most rapid temperature change in a refrigerated commodity.
Rain.
Very high humidity.
Sunshine.
Wind.
A diesel engine cylinder head is to be overhauled but the spring compressor for removing the valve collets is found to be damaged and unusable. How should the task be carried out by ship's engineers?
Use a couple of screwdrivers to compress the spring and lever out the collets as this will save time.
Use a ring spanner to press down on the spring guide and pick out the collet halves once they are free.
Delay the work until a new spring compressor is available or fabricate a suitable replacement onboard if the work is urgent.
Using a hammer and a tube with an inner diameter slightly bigger than the outer diameter of the collets repeatedly strike the upper spring carrier until the collets pop out.
Which of the following types of cover should be fitted to the lower deck bilge wells of a conventional reefer vessel?
A steel watertight cover.
A steel grid.
An insulated plug.
A steel watertight cover with an insulated plug.
What should you observe when patrolling public areas on board?
Drunk people
If all the fire extinguishers are in place and that fire doors are open
Stowaways
All abnormalities that may affect the safety/ security of passengers, crew and the ship
What should you do in case of any fire breaks out?
Ask passengers to assist you with fire-fighting
Fight the fire and report to the bridge when you have extinguished it
Alert the bridge, Rescue human life, Extinguish if possible by use of available fire fighting-fighting appliances, Secure the area/ damage control
Call FIRE-FIRE-FIRE
For a Nitrate based cooling water treatment system, what would you consider to be the normal operating limits?
0-1000 PPM Nitrate.
3000-5000 PPM Nitrate.
1000-2000 PPM Nitrate.
2000-3000 PPM Nitrate.
When must side scuttles in passenger ships where the sills are below the margin line be kept closed and watertight?
When unwatched
Always during night-time
When not necessary to be kept open due to work being carried out aboard
During navigation between ports
Give the meaning of this symbol:
lifebuoy with light and smoke
lifebuoy with line and hand flare
lifebuoy with light and hand flare
lifebuoy with automatic sound signal
The bowl in a fuel oil separator opens unintentionally during operation. What is the reason to this?
Bowl speed too low.
Any of the others.
Strainer in operating water low-pressure side is clogged.
Extreme fuel oil characteristics.
What will you do if the liquid start raising in the Surge Drum? (Direct cooling / refrigeration system).
Open more on the suction valve.
Immediately reduce on the suction valve, and watch the gauge.
It will never happen.
Stop the compressor.
What refrigerant temperature would you expect to find at the compressor suction of an air conditioning system?
+ 30 ° C
+ 5 ° C
- 5 ° C
- 10 ° C
From the pressure gauges shown can you tell what is the oil pressure in a freon compressor?
5.5 bar
6.5 bar
8,5 bar
2.0 bar
Some 4-stroke engines are fitted with a rotorcap on the cylinder head valves. For what reason?
Rotate the inlet valve during operation.
Distribute the exhaust gas or the air inlet better to improve combustion.
To prevent the valve spindel to stick..
Improve the scaling surface function, increase the service time of the exhaust valve in the engine.
Do you think increased temperature of the mixture would improve the separation of oil and water?
No
The separator works under all conditions.
It makes no difference.
Yes
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.