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Maison Tests en ligne CES Chemical tanker MASTER / Ch-Officer Test online CES 5.1 for MASTER / Ch-Officer, Chemical tanker vessel
Tests en ligne : Test online CES 5.1 for MASTER / Ch-Officer, Chemical tanker vessel
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How many pyrotechnic signals to be in each lifeboat marked SOLAS A PACK?
10 Rocket parachute flares/ 12 hand flares / 5 buoyant smoke signals.
4 Rocket parachute / 6 hand flares / 2 buoyant smoke.
6 Rocket parachute / 6 hand flares / 6 buoyant smoke.
8 Rocket parachute flares/ 2 hand flares / 6 buoyant smoke signals.
Hand flares shall be so designed as to burn or emit smoke:
when underwater
continuously after having been immersed for a period of 10 seconds under 100mm of water
only when not in the water
continuously after having been immersed for a period of 1 minute under 1m of water
In order to extinguish a flammable liquid of the same kind as alcohol, we can use:
Water and foam
Water
Sprayed water
Anti-alcohol foam
*When is a locker considered as a high risk service space?
when its area is of 4m? or more
any locker must be considered as a high risk service space
when its area is above 10m?
when its area is above 75m?
How is the activation of any detector or manually operated call point of fixed fire- detection and fire-alarm systems to be indicated? (SOLAS II-2/13.1.4)
By all the indication methods listed
By visual and audible signal at the control panel and indicating units
By sounding the ship-s fire alarm signal in crew accommodation and service spaces
By alarm signals at the bridge and engine room control panels
A detector that is activated by a rise of temperature is:
a detector of radiation
an optic detector
a smoke detector
a thermic detector
In pumprooms and pipe tunnels "flameproof" electric light fittings are generally fitted. This means that:
Gas may enter, but even if an explosion takes place the fittings is so strong that the explosion will be contained within it and will not be blow out?
Even if fire occurs, it will not consume the fitting?
The electrical supply will disconnect automatically in cases of fire?
The fitting is completely gastight and no gas can enter into contact with the bulb and electric connections?
Which of the following types of fire extinguishers must be found in an engine room containing an internal combustion engine ?
All of the mentioned must be provided
At least one set of portable air-foam equipment
A sufficient number of foam type fire extinguisher of at least 45 litre capacity (or equivalent)
At least two portable foam extinguishers (or equivalent)
Where is it compulsory to place a portable extinguisher in an engine room containing an internal combustion machinery?
In such locations that no point in the engine room is more than 5 m walking distance from an extinguisher
In such locations that no point in the engine room is more than 10 m walking distance from an extinguisher
Two at each gallery
In such locations that no point in the engine room is more than 15 m walking distance from an extinguisher
*In addition to personal equipment a complete set of fireman's outfit also comprises a breathing apparatus and a fireproof lifeline. How many complete sets of fireman's outfit is to be carried by ships carrying dangerous goods?
At least three sets or more depending on the type and the size of the vessel
At least four sets or more depending on the type and the size of the vessel
At least one set or more depending on the type and the size of the vessel
Two sets or more depending on the type and the size of the vessel
*You are the officer of the watch at the bridge of a cargo ship. In the middle of the night, an alarm sounds on the control panel of the fire detection system. It indicates that a detector is activated in the crew's accommodation. What is the first action you would take?
Call the Captain
Acquit the alarm and wait till it sounds again before taking any other action
Run to the scene as fast as possible and start fighting the fire by all available means
Sound the fire alarm signal and send the seaman on watch down to inspect and report the situation
How often shall crew members participate in fire drills?
Once every year
Once every 6 months
Once every week
Once every month
In the radio telex-traffic the landline-connection with a subscriber ashore will be broken with the following command:
msg+
NNNN
kkkk
brk+
The Urgency Message from a ship is used to notify other traffic of a situation where the ship is not in imminent danger, but where the development of the situation is uncertain and may need assistance in the near future. What is the telephony urgency message like?
RESCUE-RESCUE
SECURITE
PAN-PAN
MAYDAY
If one requires medical advice by means of an Inmarsat-C terminal one should use the following address:
Don't know
MED +
32
Radiomedical
What will happen if Phenol is overheated ?
It will become solid.
It will evaporate.
It will be discolored and turn pink.
It will freeze and turn pink.
Any ship of 10.000 tons gross tonnage and above shall be fitted with oily-water separating equipment for the control of machinery space bilges.What kind of equipment is required in this connection?
Sludge separating tank.
Oily-water separating equipment only.
Either Oil fitting equipment , or Oily-water separating equipment , or combination of both.
Oil fitting equipment only.
Which of the following requirements regarding on board stability data corresponds to present regulations? (NSCL 4/12.1)
Drawings and caculations documenting the stability of the ship, both in intact and all possible damage condition.
A calculation example showing the use of "KG" limitation curves.
A calculation example showing use of "GM" limitation curves.
Stability data produced by stability calculation instruments.
In celestial navigation the angle measured westward from the first point of aries to the hour circle of the body along the celestial equator is known as:
Greenwich hour angle
Sidereal hour angle
Local sidereal time
Azimuth angle
What should be done to assist a survival craft in keeping alongside own vessel?
Keep vessel underway
Stretch a painter from fore to aft
Keep vessel still
Use a winch
Who should be informed first when receiving a distress signal from another ship/vessel?
Associated Press
AMVER
Your own company
The nearest coastal radio station
You are the master onboard at VLCC of 280.000 tdw, and have received a telex from the Cargo Terminal asking if your SPM-moorings are according to the OCIMF standard. What fittings must you have to comply?
One tongue-type/hinged bowstopper with centre bow closed fairlead. Capacity 200 tons.
Two tongue-type/hinged bowstoppers with one centre closed fairlead. Capacity 200 tons.
Two tongue-type/hinged bowstoppers with separate closed fairleads. Capacity 200 tons.
One Smith type bracket with centre bow fairlead. Capacity 150 tons.
How do you consider the indicated speed for berthing?
To be sufficient
Too slow
Too fast
It is up to the pilot to decide
In the situation shown, the bow of your ship is pushed away from the bank. How can you handle this?
Give hard port rudder to get the ship back in the middle of the channel
Give starboard rudder in order to balance the force of the bank effect and rudder effect
Put your engine full astern to stop your ship
Do nothing as the ship will handle itself
The International Organisation which has developed GMDSS is :
INMARSAT
SARSAT-COSPAS
IMO
ITU
The Inmarsat Maritime Communications Manual contains tables of:
Don't know
telephone country codes
Inmarsat SES-id's
radio telex frequencies of coast stations
Which of the following services is not provided by INMARSAT A
Safetynet
X25
Telephone
High speed data
Give the meaning of this symbol:
lifebuoy with light and smoke
lifebuoy with light
lifebuoy with automatic parachute flare
lifebuoy with line
How many lifebuoys can you expect to find on board a passenger ship of 190 metres in length (including those of the quick-release system) ?
at least 24 distributed on both sides of the ship
at least 12 distributed on both sides of the ship
at least 30 distributed on both sides of the ship
at least 8 distributed on both sides of the ship
The minimum number of lifebuoys required for a cargo ship cannot be less than:
2
10
6
8
A lifejacket should be provided with:
on ships built after February 1992 all lifejackets should be fitted with a light
a whistle and a light
a whistle
a light
Which of the following fittings shall be provided to all lifeboats:
permanent boarding arrangements on both sides to enable persons in the water to board the lifeboat
a manually controlled lamp fitted on the outside
a remotely operated steering arrangement
an electric power starting system for the propulsion engine with one rechargeable energy source
*Give the meaning of the following symbol
Fasten lifejacket belt
Fasten seat belts
Secure hatches
Secure buoy line to the ship
*Give the meaning of the following symbol
Start water-spray
Secure lifeboat hatches
Rescue boat with waterproof canopy
Lower lifeboat to water
In which way shall a survivor be hauled out of the sea?
In 45 degree angle
Horizontal
Vertical
None of the above
*How much food per person is supplied on a lifeboat?
Not less than 10000 kJ
None -only barley sugar-sweets supplied
Not less than 20000 kJ
Not less than 5000 kJ
*Which one of the following items has to be included in an abandon ship drill?
Starting and operating radio life-saving appliances
Launching and recovery of a survival craft
ensuring that passengers and crew are made aware of the order to abandon ship
Manoeuvring the lifeboat in the water
The training manual shall contain instructions and information in easily understood terms and illustrated wherever possible. Which of the following objects do not have to be explained in detail in the manual according to present regulations?
Muster of assigned stations
Donning of lifejackets and immersion suits
Boarding, launching and clearing of the survival crafts and rescue boats
Donning of fire protection clothing
What is the deck water seal of the inert gas system's purpose ?
Acts as an emergency shutdown when inlet pressures exceed the safe working pressure
Prevents the backflow of inert gasses into nonhazardous areas
Relieves sudden large overpressures in the system
Cools the inert gas and prevents soot from entering the cargo tanks
Diodes are widely used in rectification, or the conversion of alternating current to direct current. The sinusoidal input voltage V(in) is applied to the circuit shown. Which of the output voltages is correct ?
Figure 1
Figure 4
Figure 3
Figure 2
In describing an oil cargo, what is its "pour point"?
The lowest temperature at which a gas converts back to liquid
The lowest temperature at which it will remain fluid
The temperature as recorded during the taking of cargo samples
The temperature necessary for a cargo to load from shore by gravity alone
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.
When discussing the properties of an oil cargo, what is the "wax content"?
The percentage of wax, expressed as a percentage, remaining in an oil product after distillation.
The observed volume percentage of waxy deposits found in a cargo tank after discharge in relation to the total volume of cargo previously carried.
The amount of additive in an oil product, expressed in ppm, designed to inhibit solidification at lower temperatures.
The percentage of paraffinic wax by volume, based on a representative sample of the crude oil.
The typical current gain of a common emitter transistor is
10-200
500-5000
1-1000
1-10
Who is responsible for issuing an ISPS certificate?
The Port State
The Flag State
US Coast Guard
The insurance company
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.
After cooking, at what minimum temperature must rice be maintained during service?
37.8 degrees Celsius.
63 degrees Celsius.
93 degrees Celsius.
Between 10 and 12 degrees Celsius.
You are proceeding up a river, with berths on both banks. You see this flag hoist on a vessel moored on a berth ahead. What does it mean?
My engine is disabled.
Caution! I have an anchor down.
You should proceed at slow speed when passing me.
I am about to depart the berth.
What is the typical composition of liquified natural gas, LNG?
Mainly Butane, but with small percentages of heavier hydrocarbons such as ethane, propane, methane and pentane.
Mainly Pentane, but with small percentages of heavier hydrocarbons such as ethane, propane, butane and methane.
Mainly Methane, but with small percentages of heavier hydrocarbons such as ethane, propane, butane and pentane.
Mainly Ethane, but with small percentages of heavier hydrocarbons such as methane, propane, butane and pentane.
What initial simple action can be taken to reduce the oxygen content of boiler water?
Increase the blowdown.
Increase the boiler pressure.
Raise the feed water temperature.
Lower the feed water temperature.
Which regulations cover packaging materials consisting of wooden elements?
The Code of Safe Practice for Cargo Stowage (CSS) Code
The International Maritime Dangerous goods (IMDG) Code
International Standards for Phytosanitary Measures (ISPM) Code
The United Nations Convention on Law of the Sea (UNCLOS)
How often shall drills for the operation of watertight doors, side scuttles, valves and closing mechanism of scuppers, ash-chutes and rubbish chutes take place in passenger ships?
Every month
Weekly
Daily
Every two weeks
Occasionally the tie rods on a large slow speed diesel engine may fail in service. The mode of failure is usually a complete fracture of the tie rod due to excessive fatigue stress. Select, from the options given, the features of the surface of the fracture that would confirm a fatigue failure.
The surface of the fracture would be serrated in appearance and at right angles to the axis of the tie rod.
Part of the fracture surface would be uneven but smooth (burnished) with the remainder crystalline with part 'cup and cone' shape.
The surface of the fracture would be crystalline in appearance and at an angle of approximately 45 degree to the axis of the tie rod.
The surface at the fracture would be crystalline in appearance with a full 'cup and cone' shape.
What is the most important task after carrying out any major overhaul on a diesel engine?
A thorough check inside the engine to make sure all tools and cleaning rags have been removed.
Start the engine to check the direction of rotation.
Start the auxiliary blower to ventilate the engine so that it has sufficient fresh air for starting.
Repair any damaged paint work on the engine.
Who is responsible for the regular security inspections of the ship?
The Company Security Officer
The Classification Society.
The Ship Security Officer
The Port Facility Security Officer
A spare cylinder head for the generator needs to be lifted from its storage cradle to the generator flat. Because of its location the engine room crane cannot be positioned directly above it. What method should be used to bring the cylinder head into position?
Attach the crane hook to the lifting gear for the cylinder head and drag it across the deck until it is directly under the crane.
Use crow bars to lever the cylinder cover across the deck until it is in position below the crane.
Use a block and tackle to drag the head across to a position beneath the crane.
Rig chain blocks to lift the cylinder head from its cradle and then transfer it gradually over to the crane hook by working the chain blocks.
On the figure 4 possible definitions of the term "CENTRE LINE" are given. Which one is the correct one?
Centre line is given by D on the figure
Centre line is given by B on the figure
Centre line is given by A on the figure
Centre line is given by C on the figure
A 6-Volt relay is to be used with a 12-Volt power supply. The relay requires a current of 0.1 Amp. What is the series resistance required.
480 ohm
120 ohm
80 ohm
60 ohm
What is the requirement with regard to Familiarisation on board?
During the first tenure, seafarers are responsible for asking at least a 100 questions to the Safety Officer.
Seafarers, on being assigned to any ship, shall be familiarized with their specific duties and with all ship arrangements, installations, equipment, procedures and ship characteristics that are relevant to their routine or emergency duties.
Seafarers on board passenger vessels must as soon as possible learn the names of all persons working in the same department in order to ensure efficient daily operation.
Seafarers shall be familiarized with all life saving appliances and emergency exits in case any emergency situation occurs. It takes normally an hour to complete the Safety Familiarisation. The safety Officer is responsible.
Why should a heavy lift derrick not be operated close to the horizontal?
Because the topping lift sheave may fail
Because the derrick gooseneck might crack
Because the topping lift wire may part
Because there is danger of the derrick heel springing out of its shoe
You are carrying a bulk cargo of Phosphoric Acid. Which components of the cargo pumps may be damaged as a result of discharging this particular cargo and why?
The cargo seals may be damaged from the abbrasive effect of any sediment.
The valves in the associated piping may be distorted by pressure surges created by cavitation as the acid is discharged.
The outer casing may be corroded by the unstable impurities within the acid.
The impeller veins may be damaged as a result of the relatively high density of the cargo if the pumps are run at too high a speed.
How is ‘Allowable Use Strength’ (AUS) calculated, for applying cargo lashings in the transverse direction?
Transverse accelerations, taken from the CSS Code, multiplied by the vessel’s natural roll period
Vessel’s moulded breadth divided by a factor of safety, taken from the CSM, multiplied by weight of cargo item
Width of cargo hold divided by a factor of safety, taken from the Cargo Securing Manual (CSM), multiplied by weight of cargo item
Transverse accelerations, taken from the Cargo Stowage and Security (CSS) Code, divided by 7 multiplied by weight of cargo item
Why do the cargo holds of a self-unloading bulk carrier have a ‘W’ shaped cross section?
So that during discharge the cargo will automatically fall onto the underlying conveyor belts
To make it easier for cargo to be discharged by grabs
To reduce the extent of tank top damages when discharging cargo
So that cargoes are self-trimming during loading
You are on a chemical tanker, where the duty officer usually controls the opertaion of the pumps and valves from a control room. You are in radio contact with him. The ship has just started to discharge several grades of chemicals to shore. Suddenly, the jettyman shouts across to you to "STOP". Which of the following will you do?
Inform the jettyman that you will check with the duty officer first.
It is important to keep the cargo discharge going, so you will ask the duty officer to slow the pumps to minimum speed while you find out what is happening.
Immediately repeat the request on the radio to the duty officer, then proceed to the manifold and stand-by for further instructions.
Ignore him, because you take your instructions only from the duty officer.
Who is responsible for ensuring that your ship’s security plan meets the requirements of the ISPS Code?
Recognized Security Organization
Flag State Administration
Company Security Officer
Ship Security Officer
On a RoRo vessel, where is the best place to find information on loading ramp limitations?
In the stability booklet
In the company's safety instructions
In the loading ramp manual
Which of the following tinned products should be kept in cold storage?
Sardines/olives
Peas
Pickled herring
Peaches
What will happen to the temperature in a cargo tank loaded with LNG if the vapour pressure is reduced by removing more vapour than is generated?
The LNG temperature will decrease.
The LNG temperature will remain the same, but the pressure will increase.
The LNG temperature will increase.
In order to make up the equilibrium pressure corresponding to its temperature, the vaporisation will accelerate because of increased heat.
What is the direction of wind associated with an anticyclone (area of high pressure) in the Northern Hemisphere?
Clockwise around the high pressure
Straight towards the centre of the anticyclone
Directly away from the centre of the anticyclone towards the nearest Low pressure.
Anticlockwise around the high pressure
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.
On the diagram, which letter indicates what is meant by the word "DRAUGHT" of the ship?
Draught is indicated by B, in the figure
Draught is indicated by A, in the figure
Draught is indicated by C, in the figure
Draught is indicated by D, in the figure
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.
A palletised cargo is being loaded onto a reefer vessel. The cargo is stowed on wooden pallets. Select from the options given the best method to be used for lifting the pallets onboard the vessel in order to avoid damage to the pallet boards.
By using woven strops.
By using wire strops.
By using rope endless strops.
By using a patented semi-balanced lifting fork.
Compressed air for instrument and control purposes needs to be of high quality. In order to condition the air filter modules are usually fitted to remove the contaminants. If there is evidence of oil carry over to the final elements in the instrumentation air system what is the most likely cause?
The coalescer module is saturated and requires renewal.
The drier section of the module needs to be regenerated.
The air compressor piston rings need to be renewed.
The particle removal module is choked.
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.
In a two stage compressor you will find pistons with different diameters (one is bigger than the other).Which one of the following statements is correct ?
The smallest diameter piston is the stage two piston
A big piston will give less oil content in the air.
A big piston will deliver dryer air into stage one.
The biggest diameter piston is the stage two piston.
What is the optimum cargo lashing angle against sliding?
Around 20?
Around 25?
Around 30?
Around 35?
Why is it preferable to use white spirit rather than paraffin to remove traces of grease during cleaning of refrigerated cargo spaces?
White spirit is more effective at removing grease than paraffin.
White spirit does not leave an oily residue or odour.
White spirit is cheaper than paraffin.
White spirit is usually more readily available.
A seawater pump requires overhaul but there are no spare wear rings for the casing and impeller. It is decided that new wear rings will be fabricated onboard using the ship's lathe. What would be the most suitable material to use to fabricate the rings onboard?
Zinc.
Aluminium brass.
Mild steel.
Aluminium.
How can the officer in charge change the value of the Transverse Metacentric Height?
By loading or discharging cargo and changing the position of both G only.
By vertically shifting cargo and changing the position of both G and M.
By loading or discharging cargo and probably changing the positions of G and M.
Only by loading cargo and changing the position of both G and M.
When will a hatch pontoon’s side cleat need replacement?
When the cleat retainer is rusty
When the rubber washer is compressed and hardened
When the cleat retainer is distorted
When the cleat has sprung open at sea
The circuit consists of two capacitors, C(1) = 6 µF and C(2) = 12 µF, in parallel. Calculate the equivalent C(S) of the two capacitors.
C(S) = 2 µF
C(S) = 1,5 µF
C(S) = 18 µF
C(S) = 4 µF
When trying to reverse a large slow speed diesel engine in the astern direction it cannot be turned on air even though it will start in the ahead direction. What is the likely cause of this problem?
One of the cylinder air start valves has stuck open.
The reversing servo for the fuel pumps has stuck in the ahead position.
The start is blocked because the air distributor has not moved to the astern position.
The automatic valve for the air start system has jammed shut.
What is common between a clover leaf and crinkle bar?
They are items of portable lashing equipment
They are parts of a loading ramp
They are tools used for tightening ro-ro lashings
They are items of fixed lashing equipment
This amplifier circuit is a common configuration used to amplify the difference in voltage between two input signals; in this case input 1 and 2. What is this amplifier called?
Push-pull amplifier
Differential amplifier
Common emitter amplifier
Darlington connection amplifier
What stability precautions should be taken when loading heavy cargo on a conventional general cargo vessel?
There would be no specific stability problems with a heavy cargo, because the ship would be down to her marks before the spaces were full.
Stow the cargo in the lower hold and keep the Centre of Gravity low and have a large positive GM
Stow some of the cargo in the Tween deck space to raise the Centre of gravity and reduce the effective GM
The lashings should be adequate for the weight of the cargo
How are cargo holds, below the freeboard decks car carriers, segregated?
By gas-tight doors
By weather-tight doors
By water-tight doors
By air-tight doors
Which of the following is not relevant when handing over a cargo watch?
Prevailing weather conditions
Failure or stoppage of cargo handling equipment
Status of ballasting or de-ballasting operations where applicable
Status of cargo loading or discharge operations
What is the most suitable type of packing for a shaft gland of a pump used for seawater duties?
Greasy cotton packing.
Mica impregnated cotton packing.
PTFE rope packing.
Lead covered hemp packing.
Which international convention deals with fire-fighting equipment etc.
Load Line convention
CRISTAL
SOLAS
MARPOL
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.