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Tests en ligne : Test online CES 5.1 for Ch-Eng / 2nd-Eng
Test en ligne
Description
Le test consiste en des questions aléatoires sur un sujet sélectionné.
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Which one of the listed requirements regarding launching appliances for survival crafts and rescue boats do not correspond to present regulations?
Launching appliances shall be constructed for minimum amount of routine maintenance
The launching mechanism shall be arranged for actuating from a position within the survival craft or rescue boat in addition to a position on the ship's deck
All launching appliances shall be capable of recovering survival crafts and rescue boats with their crew
Parts requiring regular maintenance by ships crew shall be readily accessible
Which of the following is a combustion reaction?
All the answers are good
Open fire
Smouldering fire
Explosion
*Which bulkhead is the most efficient to fight against spread of fire?
Class D bulkhead
Class A bulkhead
Class B bulkhead
Class C bulkhead
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
A drip tray containing oil is on fire. The only fire fighting equipment available is a water hose with single jet/spray nozzle. How, if at all, should you attempt to put out this fire using water?
Water should be applied to the oil in a single jet only
The water can be applied in a fine spray starting from the front in a sweeping motion
Water should be applied in a jet to the back of the fire
Water should not be used on any type of oil fire
Which is the following parameters does an exposimeter measure?
The percentage of the L.E.L. in the ambient air
The TLV-STEL in the ambient air
The TLV-TWA in the ambient air
The percentage of flammable fumes in the ambient air
A wire aerial for an MF/HF –transmitter must be suspended between isolators:
to prevent contact with earth
to make the ………way for aerial currents as long as possible
to prevent burns when touching the aerial
Don't know
A Category "B" Chemical Cargo which has a melting point of more than 15° C. can be carried:
In tanks where the heating coils have been removed and supply and return steam pipes blanked off?
In tanks not adjacent to the ship-s shell plating having heating coils?
In tanks adjacent to the ship-s shell plating having heating coils?
In any tank onboard the vessel?
What is the flash point of a Class 3.1 substance?
Lower than -18?C
Lower than 0?C
Lower than or equal to 61?C
Lower than 23°C
Give the meaning of the following symbol
Fire alarm panel
Fire pump
Sprinkler section valve
Area protected by sprinkler
The rudder is in the hard over position with the propeller stopped and the ship turning slowly. On a ship with a single fixed pitch right handed propeller and no thrusters, what can be done to make the ship increase the speed of turn without significantly increasing the forward speed of the ship?
Give the engines a short kick ahead
Give full astern on the engines until ship has stopped and then full ahead on the engines with rudder hard over
Give dead slow ahead on the engines and leave the rudder in the hard over position.
Give half astern on the engines as this will increase the rate of turn
You are a Senior Officer of the Watch on vessel "A" and are passing through the Straits of Gibraltar. The vessel's speed is 18 knots and your vessel is overtaking several other vessels, when the visibility reduces down to about 2 nm. What aspects would you consider when establishing a "safe speed" for your vessel?
Deciding safe speed consider: 2 miles visibility; traffic density; manoeuvrability of vessel; effectiveness of navigational equipment (ARPA etc); state of sea and currents and navigational hazards.
Adjust my track to follow Route 1 or 2 illustrated and reduce speed down to half speed, approximately 8 knots
Safe speed should be where the vessel can come to a stop within the visible range
A safe speed is where a vessel can take proper and effective action to avoid collision and be stopped within an appropriate distance
What is a "certificated" person which is placed in charge of each survival craft ?
any deck or engine officers on board, provided that they hold a STCW compliant certificate
a person which has been certified by the master as being able to be in charge of the survival craft in question
any deck or engine officer on board
a person who holds a "certificate of proficiency in survival craft"
Which one of the listed requirements regarding life-jackets corresponds to present SOLAS regulations? A life-jacket shall be so constructed that:
It gives a longterm thermal protection.
It can be correctly donned within 3 minutes without assistance.
It allows the wearer to jump from any height without injury and without damaging the life-jacket.
It allows the wearer to jump from height of at least 4.5 m into the water without injury and without damaging the life-jacket.
Which of the following fittings shall be provided to all lifeboats:
a remotely operated steering arrangement
one drain valve fitted near the lowest point in the hull, except for free-fall lifeboats
an electric power starting system for the propulsion engine with one rechargeable energy source
permanent boarding arrangements on both sides to enable persons in the water to board the lifeboat
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 non-skid finish on all surfaces on which persons might walk
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
Secure buoy line to the ship
Fasten immersion suit belt
Fasten seat belts
The Muster List shall show the duties assigned to members of the crew. Which of the following duties shall be included according to present regulations?
Preparation of immersion suits for passengers.
Manning of fire parties assigned to deal with fires.
Operation of the vessel's propulsion system.
Special duties assigned with respect to the use of pyrotechnics
*Which of the following detailed explanations should be mentioned in the Training Manual ?
How to recover survival craft and rescue boats including stowage and securing
How to use surface to air visual signals to be used by survivors
How to use navigational equipment for survival crafts
How to use escape routes and other escape methods
You are witness to a collision between two other ships close to your vessel. What immediate action should you take?
Send out a distress message on their behalf.
Contact one or both vessels involved in the incident and offer assistance.
Nothing, just standby and wait to see if any assistance is required.
Inform the local coast radio station of the incident and submit your name as a witness.
You are inerting a cargo tank on an oil tanker, prior to gas-freeing for entry. What is the maximum oxygen content permitted in the inert gas main during this operation, as required by SOLAS 1974?
5% by volume.
2% by volume.
8% by volume.
12% by volume.
Use of …… and …… is strictly prohibited on the ro-ro deck, signs shall be displayed
Goggles and Smoking
Naked lights and Smoking
Torches and Smoking
Personal Protective Equipment and Mobile telephones
While securing tank lids prior to loading, you notice that the packing from one is damaged and hanging down. What will you do?
Cover the damaged area of packing with silicone and secure the lid. Make an entry in the "defect log" at the end of your watch.
Push the packing back up into the channel as best as you can and secure the lid.
Secure the lid and report the damaged packing to the pumpman for changing later on.
Report it immediately to the duty officer. Notify other watchkeepers, so that the lid is not closed in error, prior to the problem being rectified.
In a large, 2 stroke, main diesel engine cylinder lubricating oil is supplied directly through lubrication points cut into the cylinder liner. At what point during the cycle should the supply normally occur.
At mid-stroke of the piston.
As the piston rings pass the lubrication points.
At Bottom Dead Centre.
At Top Dead Centre.
If a vessel is rolling heavily in a seaway and has negative GM and a small Angle of Loll, describe how the vessel will roll.
Roll unevenly flopping over between the Angle of Loll on each side.
Roll evenly either side of the upright position.
Roll evenly each side of the Angle of Loll.
Roll between the Angle of Loll on each side.
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
A conventional reefer vessel fitted with derricks has four large diameter Yokohama fenders supplied by the charterer. What kind of cargo operation from those given in the options is the vessel most likely being chartered for?
Loading at a dock equipped with poor fendering.
Loading cargo from barges.
Transhipment in the open sea directly from fishing boats.
Loading at a dock which experiences a large tidal range and at which strong winds are common.
What is a digital signal?
A signal indicating Revolutions per minute (RPM)
A signal used by multimeters to measure resistance.
The reading of a multimeter when indicating voltage, current or resistance.
A signal with discrete levels such as 0 = "low" and 1 = "High"
It is important that tools are in good condition when they are being used for maintenance. Incorrectly sharpened tools can be dangerous. Which of the following tools can be safely sharpened using a pedestal grinder?
Steel drill bit.
Brass chisel.
Hacksaw blade.
Wooden wedge.
Temperature sensors of all types are normally mounted in a well, or pocket, when used in pipelines. Why is this done?
Allow removal of the sensor also when liquid is flowing in the pipe.
Decrease the temperature gradient between the liquid and the sensor.
Avoid electric current flowing from the sensor to the liquid.
Suppress electro-magnetic interference between liquid in the pipe and the sensor.
What is the expected state of the refrigerant immediately before the expansion valve in a vapour - compression refrigeration system?
Vapour at high pressure.
Liquid at low pressure.
Liquid at high pressure.
Vapour at low pressure.
Consider a vessel with a 6 cylinder main diesel engine operating with one cylinder out of operation. What would you expect to be the approximate maximum reduced engine load to allow safe emergency operation in this condition?
Approximately 70 % of MCR
Approximately 30% of MCR.
Approximately 90 % of MCR
Approximately 50 % of MCR
A heavy piece of machinery is loaded on deck of a container vessel, stowed across several flatrack containers. Select the most appropriate lashing method.
All lashings to be taken to the hatch top.
Some lashings direct to the flat rack and some to the hatch top, coaming and pillars.
All lashings to be taken to the flatrack lashing points.
All lashings to be taken to the hatch coamings, pillars and lashing bridges.
Which of these is not considered a method of ascertaining the watertight integrity of hatch covers?
Hose test
Chalk test
Ultrasonic test
Visual inspection
Which of the following statements regarding a centrifugal pump is correct?
A centrifugal pump is always self priming.
Under normal operation the fluid being pumped discharges from the center of the impeller.
A centrifugal pump is always fitted in a vertical possition.
It is important that the rotation direction is correct to avoid dry running.
On a container vessel, a number of twistlocks have been identified as suffering wear down. Choose the most appropriate way of dealing with these twistlocks.
Spare parts should be ordered and used to replace the worn down parts of the twistlocks.
The twistlocks should be isolated from use and disposed of appropriately.
The twistlocks should be removed to the ships workshop where the wear down can be built up with weld material.
The twistlocks should be landed ashore for repair at an approved workshop.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
5% extra
50% extra
25% extra
10% extra
During maintenance of a piston rod stuffing box on a large, slow speed diesel engine it is usual to measure the butt gaps between the sealing ring and scraper ring segments. What would be the effect of these gaps being too small?
If the gaps are too small they could close due to the radial wear of the rings before the next scheduled overhaul preventing the rings from contacting the piston rod and sealing it.
If the gaps were too small then no oil could pass up the piston rod to lubricate the sealing rings.
If the gaps are too small the rings could score the piston rod.
If the gaps are too small then the flow of scavenge air through the gland would be reduced and the gland would overheat.
What is the result of a large metacentric height?
The center of gravity will move upwards.
The ship will have a long roll period.
Bending moment will increase.
The ship will roll violently.
Where is the "BRIDGE", in the figure?
The Bridge is C, in the figure
The Bridge is A, in the figure
The Bridge is D, in the figure
The Bridge is B, in the figure
If a vessel’s Moment to Change Trim by one Centimeter (MCTC) is 196 in saltwater, what would be her MCTC is water of density 1.015 T/m3?
197.93
194.087
203.90
196
How can you avoid and/or reduce potential panic among passengers, if an emergency situation occurs?
Do not inform passengers about the situation. It will only create panic and make it difficult for the crew to handle the situation.
Inform the passengers, that there is nothing to worry about, to keep them calm.
Inform passengers at frequent intervals over the public announcement system about the situation and how they shall act. Use as many of the ships officers and crew among the passengers to assist.
Checking that all crew and passenger are present
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
An International oil pollution prevention certificate is required for:
All oil tankers
All ships of 150 gross tons or more
Oil tankers 150 gross tons or more
Oil tankers on International voyages
During a ballast voyage, the fuel consumption is noticeable higher than normal and all pressures and temperatures is normal, may the reason to this be:
Fouling of the hull
Opposing sea current
Long time since the last overhaul.
Water in the fuel.
What would be the likely cause if the shaft of a centrifugal pump shows excessive wear in way of the stuffing box?
The discharge pressure of the pump is too high.
Wrong direction of rotation of the pump.
Over tightening of the gland packing.
Incorrect material used in construction of the shaft.
When conducting a risk assessment for a shipboard work activity, what are the two elements to be considered?
The chance of an incident re-occuring and the potential effects of an loss.
The available manpower and their experience in this type of work.
The potential severity of harm and the likelihood that harm will occur.
The time available to complete the task and the resources to hand.
What does the term liquefaction mean with respect to some heavy metal concentrate cargoes on a Bulk Carrier?
The cargo is very dry and will not reach a flow state
The cargo may suffer moisture migration and become semi-liquid near the top of the stow
The cargo may self-heat on voyage
The cargo pile will always be stable
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.
Give the meaning of this symbol:
lifebuoy with light and line throwing appliance
lifebuoy with light and smoke
lifebuoy with light and hand flare
lifebuoy with automatic sound signal
Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?
Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
Place the sensor in a test tank of oil fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Place the sensor in a test tank of water fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Fit a spare temperature gauge and see if the readings are the same.
The exhaust gas temperatures of all cylinders of a diesel engine are seen to be high. Select, from the options given, the most likely cause of this.
Poor fuel oil quality.
High wear rate in one of the fuel injection pumps.
One of the fuel cams is worn.
Insufficient cooling of the main bearings.
In a smoke filled alleyway where will the cleanest air be found, and how should you proceed out?
Sit and wait for the rescue party.
It will be the same in all parts, therefore I would just leave as quickly as possible.
Near to the deck, crawl out keeping your face as near to the deck as possible.
Towards the upper part, stand as tall as possible and walk out.
A vessel is carrying a refrigerated cargo under controlled atmosphere (CA). From the options given, select the most appropriate degree of opening of the air change vents when operating CA.
50%
0%
25%
100%
What do we measure with an explosimeter?
With an explosimeter we measure 0-20/0-100 % LEL hydrocarbons.
With an explosimeter we measure 0-21 % Oxygen content.
With an explosimeter we measure 0-2 % volume hydrocarbons.
With an explosimeter we measure 0-20/0-100 % volume hydrocarbons.
Continuity testing of a delta connected three phase induction motor yields the following results; U1-V1 = 4 ohms, V1-W1 = 4 ohms, W1-U1 = 4 ohms. What is the value of continuity resistance for each winding ie. U1 - U2?
2 ohms
4 ohms
12 ohms
6 ohms
What do you understand by the expression Master Controller
State of the art controller
The best possible control system
The primary controller in a cascade control system
The Captain’s controller
What is a Declaration of Security?
A checklist jointly completed by the Ship Security Officer and the U.S. Coast Guard
A document stating the ship’s security level
A document between the port and the cargo owner stating security
A checklist jointly completed by the ship and shore security representatives
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
A ship has an electrical system rated at 690 Volts. Which voltage level is this?
Medium voltage.
Low voltage.
High voltage.
Intermediate voltage.
What is the name of this unit?
A liferaft release unit
An antistatic release unit
A hydrostatic release unit
A slip hook
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
Check the items that can be a possible threat
All alternatives
"Piracy, Hijacking and Smuggling"
Bombing and Sabotage
Cargo tampering and Stowaways
According to the Oil Pollution Act of 1990 (OPA-90), oil carrying vessels trading in U.S. waters are required to carry oil spill clean up equipment for the containment and removal of on-deck spills. For a vessel of over 400 feet (121.9 metres) in length, what volume of oil must they be able to handle?
15 barrels (2.38 cubic metres).
1barrel (0.16 cubic metre).
5 barrels (0.79 cubic metre).
12 barrels (1.91 cubic metres).
Which vitamin is found only in meat and fish?
Répondre
The ship is to berth alongside a quay in calm conditions of no wind or current. The ship has a single fixed pitch right handed propeller. Which angle of approach would be considered the most favourable?
No. 3
The decision should be left to the pilot who is in charge of the manoeuvre.
No. 2
No. 1
What is the minimum information to be given on a dangerous goods declaration on a General Cargo Vessel?
IMO Class, weight, cargo brand name, stowage requirement
Gross and net weight, volume of cargo, proper shipping name
IMO Class, UN Number, Gross weight, number of units of cargo, Proper Shipping Name
UN Number, Volume of units, stowage requirements, weight, centre of gravity
During overhaul of a hydraulic pump a large number of small components are removed. Where should these components be kept so that they are not lost and are available when rebuilding the pump?
They should be kept in a boiler suit pocket.
They should be placed in the pump save all.
They should be placed in a clean box or tin and covered over.
They should be placed inside the pump casing.
How often shall liferafts be serviced?
Decided by the safety officer
At intervals not exceeding 12 months
At intervals not exceeding 18 months
Every second year
Refrigerated cargoes are generally easy to secure for a sea passage when compared to some bulk, timber and project type cargoes. The cargo must be stowed so that it will not shift during the voyage and so that a good air flow can be maintained through the cargo. Which one of the given options is most likely to result in this required outcome and a successful carriage?
A loose uniform stow.
A tight uniform stow but with vertical gaps in the cargo for air flow.
The stow is unimportant as it is only the temperature in the hold which determines whether or not the cargo is carried successfully.
A tight uniform stow which forces air through the cargo.
Hydrocarbons belongs to a chemical group named:?
Alkanes
Organic substances.
Carbohydrates.
Alkenes
What damages a ship’s cargo holds?
Ship's vibrations
Heavy weather
Repeated stresses at a particular location
From the options given, select the one which best completes the following statement. "A seaman who is required to work in a hatch containing perishable goods should wear gloves that are…
…canvas."
…leather palmed."
…clean."
…insulated."
The fire integrity of any bulkhead shall be maintained
At the openings and penetrations
Only at the continuous/solid part of the bulkhead
Don't know
Up to 5 meters above the deck level
Why is it necessary to use the vacuum pump after major overhaul of the reefer system?
In order to reduce the pressure in the system before start-up.
Not necessary.
To evacuate air and water out of the system in order to prevent problem during operation.
To make underpressure in the reefer system in order to get the freon liquid easy back to the system.
What English name is given to a kind of heavy-duty, wide-bladed knife, used for dividing joints of meat or poultry and which is much favoured by cooks of far-eastern nationalities for a wider range of cutting tasks?
Cleaner.
Cleater.
Clever.
Cleaver.
What is the purpose of Material Safety Data Sheets?
To provide all personnel including emergency personnel with procedures for handling or working with that substance in a safe manner
To provide personnel in deck- and engine department with procedures for handling or working with that substance in a safe manner
To provide the safety officer with procedures for handling or working with that substance in a safe manner
To determine if the substance is flammable or not
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.
How is the condenser in a fresh water evaporator normally cooled?
With air
With seawater
With brine
With distillate
When is the parallel sweep search used?
When searching large area
When searching during night
When searching in rough weather
When searching over small area
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
What will happen when the ship arrives in Rotterdam?
The ship will receive fuel and diesel oil bunkers when it arrives in Rotterdam
The anchor will be tested when the ship arrives in Rotterdam
The navigation lights will be tested when the ship arrives in Rotterdam
The main engine will be tested when the ship arrives in Rotterdam
In which cases shall side scuttles in passenger ships be so constructed that they cannot be opened without the consent of the master of the ship?
Where the height of the side scuttles go through more than two decks
Where the sills of the side scuttles are below the margin line
Where the sills of the side scuttles are less than 500 mm above the deepest load line
Where the sills are mounted below the bulkhead deck
What is the purpose of a Bridge Fitting?
To link the top containers of adjacent stacks
To link the top containers stowed at the fore end of the vessel
It is used as extension pieces for lashing rods secured to a lashing bridge
To link the top containers secured to a lashing bridge
How do You want to operate the purifier to obtain the best separation result?
By high flow and high temperature.
Flow and temperature has no influence of the result.
Separation with correct temperature and low flow rate.
By high flow and low temperature.
What is the main purpose of bottom-blowing a boiler?
To check that we do not have any leak of smoke and gases in the combustion camber.
To control that water is present in the water chamber, when the boiler is in active operation.
To adjust steam pressure when the burner capacity is excessive.
To get rid of sludge in the water chamber.
This is a simplified block diagram of a dc generator and its voltage regulator. Find the value of the feedback constant H if the reference VR is a 45-Volt battery and the terminal voltage Vt is to be 250 Volt.
H = - 0.178
H = 5.5
H = - 11.1
H = 0.55
Which items are important to get an optimal separation?
Max flow and min. pressure.
Correct flow, pressure and temperature. ( Viscosity)
Low temperature and flow.
Max flow and high temperature.
Which of the below statements characterizes the most significant differences between a water-tube boiler and a fire-tube boiler during operation?
The firetube boiler has a much better capability to work at higher steam pressure.
The watertube boiler can tolerate a short period of time without any water, when the oilburner is still in action.
Water-tube boilers are more efficient and contains less water. They suffer from major damages when run dry during operation.
The firetube boiler does not need any non-return valves in the feedwater line circuit.
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.