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Home Online tests CES Oil tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Oil tanker vessel
Online testing: Test online CES 5.1 for 2nd-Off / 3rd-Off, Oil tanker vessel
Online test
Description
The test consists of random questions on a selected topic.
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Among working conditions listed below which one is required for every propulsion engine of lifeboats?
Propeller permanently driven by the engine
For a period of at least 72 hours
Self-starting and launch procedure simultaneous
Sufficient fuel to run at 6 knots for a period of at least 24 hours
Which one of the listed requirements regarding rocket parachute flares do not correspond to present regulations? The rocket parachute flares shall:
be contained in a water-resistant casing
burn with a bright orange colour
have integral means of ignition
have brief instructions clearly illustrating the use of the flare
Hydrocarbon gas encountered in oil tankers cannot burn in an atmosphere containing less than approximately what percentage of oxygen (by volume)?
15%
11%
17%
13%
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
One of the risks of using CO2 is the low temperatures that it reaches when it vaporises; this temperature is approximately
-0?C
-5?C
-79?C
-109?C
*Which of these series of sizes corresponds to the international standard for nozzles
10 mm and 20 mm
10mm, 20 mm and 30 mm
12 mm, 16 mm and 19 mm
5 mm, 10 mm and 20mm
Can a nitrogen blanket be maintained on a cargo containing an inhibitor which is "oxygen dependent"?
No, if this is done the lifetime of the inhibitor will rapidly expire.
I don't know.
Yes, provided the blanket only reduces the oxygen content in the ullage space to a minimum of 8% oxygen, which will still be enough for the inhibitor to function properly.
xx
What rules and regulations are regulating the watch keeping routines in the engine room?
International Standard for Training and Watch keeping (STCW)
Both STCW and Class rules
SOLAS
Class Rules
Why are you only allowed to load maximum 98% of the tank capacity?
It is company policy.
Danger to vessel stability and strength.
Due to temperature expansion.
Danger of overloading.
Which method of oil cleanup is NOT usually allowed?
Using skimmers
Employing a boom
Using sinking agents
Using suction equipment
Which of the four calculations below is the correct set up, if you want to find observed latitude when the sun is on the meridian?
Calculation 2 is correct.
Calculation 4 is correct.
Calculation 3 is correct.
Calculation 1 is correct.
What are the advantages of having mooring wires stowed on self-stowing "split drum" winches?
Increased brake holding capacity due to the ability to keep the paid out wire in a single layer on the drum
Less chance of the wire becoming jammed on the reel
All the listed alternatives answers
No crushing of the wires
When should operational checks on navigation equipment be done?
As often as possible
When time allows
When errors are indicated
Regularly, when preparing for sea and entering port
To choose the HF-band, the time difference between 2 stations is:
irrelevant
Don't know
is hardly relevant
is important
Give the meaning of this symbol:
lifebuoy with light and smoke
lifebuoy with light
lifebuoy with automatic parachute flare
lifebuoy with line
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"
In a distress situation, how many times or for how long should the emergency alarm signal be sounded?
3 times
3 minutes
Until all crew members and passengers have reported to their respective muster stations
Until the signal "risk is over" or the order "abandon ship" is given
Which among the following list is particularly required for a totally enclosed lifeboat ?
handrails inside for persons moving to their seats
self-bailing arrangements
windows on both sides can be closed watertight and opened for ventilation
access hatches capable of being opened and closed from both sides
Which one of the listed requirements regarding rescue boat equipment do not correspond to present regulations? The normal equipment of every rescue boat shall include:
a first-aid outfit in a watertight case
an efficient radar reflector
immersion suits for the number of persons the boat is permitted to accommodate
two buoyant rescue quoits attached to not less than 30m of line
Which one of the listed requirements regarding the stowage of a survival craft do not correspond with present regulation? (SOLAS III/13.1) Each survival craft shall be stowed:
in a secure and sheltered position and protected from damage by fire or explosion
so that neither craft nor stowage arrangement interfere with the general operation of the ship
in a state of continuos readiness so that two crewmembers can prepare for embarkation and launching in less than 5 minutes
as near the water surface as is safe and practicable
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?
Ensuring that a sufficient supply of water is brought to the survival crafts.
Ensuring that the passengers' thermal protective aids is brought to the survival craft.
Seeing that the passengers are suitable clad.
Ensuring that a supply of food is brought to the survival crafts.
The manually controlled inside lamp must be capable of working at minimum for a period of:
18 h
12 h
6 h
24 h
Give the meaning of the following symbol
Rocket parachute flares
Survival craft portable radio
EPIRB
Radar transponder
What is the meaning of this symbol ?
Immersion suit
Direction indicator
Embarkation station
Muster station
When passenger ships are engaged on international voyages (except for short ones) musters of the passengers must be performed within
1week after their embarkation
24h after their embarkation
48h after their embarkation
immediately after their embarkation
What should be carried out before entering the pump room?
Run the ventilation for at least 15 minutes
Notify the Chief Officer or officer on duty
Always carry a walkie talkie with you into the pump room and call for help immediately if you start feeling dizzy
Notify the Chief Officer or officer on duty and run the ventilation for at least 15 minutes.
What is the main responsibility of a bridge lookout at night?
Inform the bridge of any new lights when they appear over the horizon or any other items observed which may affect the ship
Inform bridge of changing weather patterns
Inform bridge of any lights when they appear over the horizon
Inform bridge of any other ships observed, which appear to be getting closer to your own ship
What is characteristic of titanium, magnesium and lithium catching fire?
There is always risk of explosion
These fires are self-extinguishing
These fires can only be extinguished using water
Due to chemical reactions these cargoes will continue to burn
In the event of a diesel engine crankcase explosion which of the safety devices fitted to the engine is designed to minimise the risk of a secondary explosion?
Crankcase relief valves/doors
Main bearing temperature monitoring equipment.
Crankcase extraction fan.
Crankcase oil mist detector.
Basic manual dew point measurement devices are commonly used by surveyors when monitoring the dryness of a cargo tank prior to loading a liquid chemical product. Which of the descriptions below is a summary of how the measurement is carried out?
A small quantity of Methanol is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously drawn through the device, passing over the surface of the Methanol. When the first signs of evaporation are observed (smoke rising from the surface), the temperature of the Methanol is noted. Reference may be required to tables to correct the reading for calculation purposes.
A quantity of Acetone is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously pumped through the liquid. Bubbles will be seen to reach the surface of the bath until the dew point is reached. When the flow of bubbles ceases, the temperature of the Acetone is noted. Reference may be required to tables to correct the reading for desired parameters.
A small quantity of Acetone is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously drawn through the device, passing over the polished or mirrored surface of the container. When the first drop of mositure (dew) is observed to form on the polished surface, the temperature of the Acetone bath is noted. Reference may be required to tables to correct the reading for desired parameters.
A small quantity of dry-ice is placed into the device, submerged in deionized water. A sample of the atmosphere in the tank is continuously drawn through the device, passing across a reagent filter. When the dew point is reached, this reagent filter will change colour from white to green, indicating saturation. The temperature of the deionized water is noted at this time and corresponds to the dew point. Reference to correction tables is required to correct the reading for barometric pressure.
You have recently discharged a cargo of Isoprene and the tank has now been cleaned. There is still a strong smell of Isoprene vapour from deck. Can you save some time and use a mask fitted with an "Inorganic Gases and Vapours" filter to enter the tank for mopping and inspection?
No. Filter masks are not permitted for enclosed space entry where the oxygen content of the atmosphere may be insufficient to sustain life.
No. Entry into a tank which previously contained Isoprene requires the use of a filter for "Organic Gases and Vapours".
Yes.
Yes, provided mechanical ventilation continues whilst you are inside the tank.
What information should be displayed on a Fumigated Container?
The date of manufacture of the container
The proper name of the fumigant and the date it was applied
The trade name of the fumigant and the date it was applied
The last container inspection date
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)
Air bags (dunnage bags) are widely used for securing palletised refrigerated cargoes. In the case of a fruit cargo, which of the given options should the user be aware of?
Over inflation can crush and damage the soft tissue of the fruit.
Over inflation can distort the pallet stack.
Over inflation can distort the air bag.
Over inflation can damage the ship's structure including the insulation.
A bulk carrier is to carry a full deck cargo of packaged timber; to what regulations must the vessel comply?
Grain Regulations
International Code for the carriage of Dangerous Goods
IMO Code of Practice for the carriage of Timber Deck cargoes
Marine Pollution Regulations
What action should be taken by the Officer of the Watch when the GPS fails?
Stop ship until it is repaired and fully functional
Call the Master
Inform the technical officer responsible for the electronic navigational equipment and continue on passage using alternative navigational methods
No special action needs to be taken, just continue on the passage and wait for it to be fixed.
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
he instrument most widely used for testing of semiconductor diodes is
Ammeter
Ohmmeter
Oscilloscope
Voltmeter
What would be the most probable cause of light, smoky exhaust from a diesel engine?
The engine is overloaded.
Air in the fuel oil system.
Fouling of the charge air cooler.
Water carry over from charge air cooler to engine cylinders.
Which of the following hazard risks generally apply to the carriage and handling of LNG and its vapours?
Flammable, Toxic and Frostbite
Flammable, Toxic and Corrosive.
Flammable, Corrosive and Frostbite.
Flammable, Asphyxia and Frostbite
What is the relationship between absolute and gauge pressure?
Absolute pressure = gauge pressure + barometric pressure.
Gauge pressure = barometric pressure / atmospheric pressure
Absolute pressure = gauge pressure x 0.947 barometric pressure.
Gauge pressure = absolute pressure + barometric pressure.
How many groups is cargo tanks divided into?
5
6
4
3
The purpose of the “flame scanner” on the boiler is
check the colour of the flame
all the alternatives
controlling the combustion air supply to the boiler
shut off the oil flow if the flames goes out
Over a period of a few hours of operation the main diesel engine speed gradually falls off. From the options given what is the most likely cause of this fault?
Fouling of turbocharger intake filters.
Water in a cylinder.
Injection valve opening pressure is too low.
Governor linkage broken.
During a visual inspection of a cargo of bananas a crewman notices that the fruit in one of the cartons is yellow. Select, from the options given, the best action to take in these circumstances.
Put the carton with any other similar cartons together in the cargo space.
Remove the carton from the cargo space if possible.
Move the carton to the battery room/cooler room.
It is not necessary to take any action as this is only one carton in amongst thousands of others so it won't make any difference.
An expansion process along a turbine venturi is ofthen recognized as if no heat transfer out of the system is occuring What is the correct term for this?
Adiabatic.
Isochorie.
Isobar.
Endothermic
What kind of Crude Oils are required by MARPOL to be specifically listed in a tanker's Crude Oil Washing manual as unsuitable for cleaning by that method?
Those with highbenzene content.
Those with high basic sediment and water content.
Those with high pour point or viscosity.
Those on the IMO Oil Tanker Technical Committee COW banned list.
Apart from longitudinal, transverse and vertical accelerations what else must be taken into account when calculating the external forces acting on a cargo unit?
Vertical and transverse forces by wind pressure
Longitudinal and vertical forces by wind pressure
Longitudinal forces by sea sloshing
Longitudinal and transverse forces by wind pressure
The sign on the image indicates:
Location of lifebuoy with self-igniting light and self-activated smoke signal
Rescue zone
This is the location where you should operate pyrotechnic equipment (Buoyant smoke signal, hand flares and rocket parachute flares) In case of an emergency
Location where you should throw lifebuoys in case a man- over-board situation occurs.
What is "DRAUGHT", in the figure?
Draught is indicated by D, in the figure
Draught is indicated by C, in the figure
Draught is indicated by B, in the figure
Draught is indicated by A, in the figure
Spray painting has been carried out in the engine room while the engine was running, and the turbocharger intake filter was not protected. Which one of the options given is most likely to result from this?
Scavenge air pressure lower than normal.
Exhaust gas temperatures lower than normal.
Scavenging air pressure is higher than normal
The revolution of the turbocharger lower than normal.
What is the requirement to number of inert gas blower(s)?
At least 2 blowers.
Sufficient to obtain minimum 500 mm water column during discharging.
The are no requirement to number of blowers.
1blower.
What must be ensured when using ship’s cargo gear in hot climates?
That all cargo gear is appropriately marked
That grease from wire falls does not fall onto cargoes being loaded or discharged
That the cargo gear register in up to date
That stevedores handle cargo gear in the proper manner
When securing a non-standardized portable tank what is a favourable securing angle that will prevent it from tipping in the fore and aft direction?
40 to 50 degrees
65to 70 degrees
60 to 65 degrees
50 to 60 degrees
You are assigned to accompany a cargo surveyor during tank inspection. A wall-wash is to take place in tank 3 centre. As the surveyor is preparing his equipment for this, you observe that a drop of sweat falls onto the funnel. What will you do?
Draw the surveyor's attention to it. Take note that he thoroughly cleans the funnel with the wall-wash solvent before collecting the laboratory sample. Report the matter to the Duty officer.
Ask the surveyor to wait in the tank alone while you take the funnel up to the accommodation and rinse it in clean, fresh water.
Immediately instruct the surveyor to leave the tank and collect a substitute set of equipment.
Nothing. The odd drop of sweat will not usually make any difference.
Which of the given options is a common alternative name, or synonym, for Methane?
Dimethyl.
Marsh gas.
Oxirane.
Methyl methane.
If an enclosed space needs to be entered, what is the first thing that must be done?
A responsible person must be appointed
The chief officer must be asked for permission to enter the space
A full Risk Assessment must be caried out
Two crew members must be asked to stand-by outside the space
The cold room temperature is almost at the cut out point in a vapour-compression refrigeration system. What should the refrigerant state be just after the evaporator if the system is correctly set up?
Slightly superheated low pressure gas.
Liquid at high pressure.
Sub-cooled liquid at low pressure.
Wet vapour at high pressure.
Why is is especially necessary to continue to ventilate the tank and to continuously monitor the atmosphere when working inside a cargo compartment which still contains vegetable oil residues?
For a tank which has contained vegetable oils, if it is continuously ventilated an Enclosed Space Entry Permit is not required. However, for anyone entering the compartment without a permit in place, they must carry an oxygen meter which continuously monitors the atmosphere.
Forced ventilation will create a hard "skin" on the residues, making them safer to stand on. Testing the atmosphere will indicate when this skin has formed, as no further vapours will be released.
Vegetable oils are commonly washed using very hot water. Forced ventilation will make the temperature inside the compartment better to work in. Monitoring the atmosphere will indicate if the humidity is increasing.
Because the decomposing residues continue to release hazardous gases, reducing the levels of oxygen in the tank and making the atmosphere potentially dangerous.
On the figure 4 possible definitions of the term "ABEAM" are shown. Which one is the correct one?
Abeam is defined as B on the figure
Abeam is defined as C on the figure
Abeam is defined as A on the figure
Abeam is defined as D on the figure
The maximum cylinder pressure is lower than normal due to:
Fouling in the turbocharger.
Fuel oil filters are clogged.
Lost propeller.
Fuel oil with poor combustion properties.
How frequently should the PA-system (Public Address) be tested?
Every week
Every year
Every day
Every second year
What precautions should be taken with Ro-Ro cargoes when crossing the oceans in winter?
Additional cargo lashings should be applied at the loadport
The ship should avoid areas of heavy weather
All of the alternatives
What is the first thing you would check when taking over a boiler watch
the periscope
the bilges
the oil pressure
the water level
What governs the disposal of dry bulk cargo residues at sea?
SOLAS Chapter VII
The Code of Safe Practice for Solid Bulk Cargoes
MARPOL Annex V
MARPOL Annex IV
Where on a ship is the deck known as the "Boat Deck"?
The Boat Deck is the name of the main deck of the ship or boat.
The Boat Deck is the deck where access would be made from any boats alongside.
The Boat Deck is the deck from which persons embark into the lifeboats
The Boat Deck is the deck of a life boat
What are the properties of IMDG Class 4 (Flammable Solids) cargoes?
These cargoes emit flammable gases
These cargoes are liable to spontaneous combustion
These cargoes are liable to spontaneous combustion or when in contact with water emit flammable gases
These cargoes emit toxic gases
How might a leak from a cargo tank on an oil tanker be readily detected during the voyage?
By regularly monitoring the vessel's trim on the cargo computer - any cargo that leaks will run to the end of a compartment, resulting in an increase in trim.
By occasionally opening a selected tank and manually measuring the cargo ullage, then comparing it to the 'after loading' reading.
By regularly monitoring void and ballast spaces, such as by testing them for hydrocarbon content and sounding them.
By frequently monitoring cargo level equipment readouts and comparing them to the load port departure readings.
The high level water ingress alarm in number 1 hold of a Bulk Carrier activates in bad weather at sea; what would be the actions of a prudent Master?
The alarms could be faulty and should be ignored
Investigate when the weather improves
Sound general alarm, muster ships crew and transmit a Mayday call and message.
Assess all spaces for signs of damage if weather conditions permit
What will happen when you start a centrifugal pump with the delivery valve closed?
The starting load on the motor will cause overload.
The pump will lose suction.
The delivery pressure will be large causing the relief valve to open.
The starting load on the motor will be minimum.
A thermistor which provides feedback for a thermal control system is suspected to have failed. Assuming there is no available replacement, which of the following methods may be used to prove it has failed?
Connect a mV source in parallel with the thermocouple connections.
Connect a mA source in parallel with the thermocouple connections.
Disconnect the thermocouple lead from the conttroller and replace with a mA source.
Disconnect the thermocouple lead from the controller and replace with a mV source.
An attempt is made to remove a ball bearing from a pump shaft using a hydraulic cylinder type bearing puller. It is noticed that the puller legs are starting to bend but there is no sign of the bearing moving. What action should be taken?
With the hydraulic pressure still on the puller try and shock the bearing into moving by hitting the top of the hydraulic cylinder with a hammer.
Remove the puller and hammer the bearing off the shaft.
With the hydraulic pressure still on the puller try and shock the bearing into moving by hitting the bearing with a hammer and punch.
Remove the puller and try and warm up the bearing and cool down the shaft a little before trying the puller again.
How are the surfaces of ro-ro vehicle decks and ramps treated?
With non-slip tapes
With non-skid paints
With anti-fouling paints
With rubber-based paints
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.
What action should be taken if a purifier starts to vibrate heavily during normal operations?
Leave the purifier running and check it again after its next scheduled sludge cycle.
Stop the purifier and then restart it
Change the flow rate.
Stop the purifier immediately. Check the machine for fouling or mechanical damage. Do not restart until cause is identified and fault rectified.
When is a visitor onboard required to present an ID?
Only on SECURITY Level 3
On SECURITY Level 2 & 3
Never
"On SECURITY Level 1, 2 & 3"
Which push-button valve A, B or C must be pushed (operated) in order to obtain movement of the pneumatic cylinder S?
A
B
None
C
What action should be taken, in addition to isolating the leak, if the boiler water has become contaminated with a small amount of fuel oil due to a leaking heating coil?
Do nothing, a small amount of oil in the boiler is harmless..
Dose with coagulant and give the boiler a bottom blowdown.
Dose with coagulant and continue to operate the boiler as normal.
Dose with coagulant and surface blow the boiler.
The torsion meter for the main propeller shaft is reading high. The torque is sensed using the angle of twist principle with two clamp rings attached to the shaft at a fixed distance, with stationary proximity switches for measuring the angle of twist and also shaft speed fixed to a rigid stool. What is the most likely cause of the high reading?
Axial slip of one of the clamp rings to bring them closer together.
Circumferential slip of the after clamp ring in the opposite direction to shaft rotation.
Axial slip of one of the clamp rings to move them further apart.
Circumferential slip of the forward clamp ring in the opposite direction to shaft rotation.
Many chemical tankers are fitted with deepwell centrifugal cargo pumps. What is the process by which any leakage of cargo or hydraulic oil into the pump cofferdam is detected?
Proving.
Stripping.
Purging.
Purifying.
What is the time limit for abandonment of ro-ro passenger ships?
2 hours from the time the abandon ship signal is given
15 minutes from the time the abandon ship signal is given
30 minutes from the time the abandon ship signal is given
There is no time limit
Conventional reefer vessels often carry non-refrigerated cargo on the voyage to the loading port, for example from Northern Europe to Central America. Which one of the options given is the most suitable type of non-refrigerated cargo to carry in such a situation?
Grain in bulk.
Steel coils.
Unpackaged motor vehicles.
Chemical products.
What does MARPOL 73/78 require in respect of the contents of lines and pumps on an oil tanker at the completion of discharge?
That they be drained directly (and only) to shore.
That they be cleared to shore by the use of compressed air.
That agreement be reached at the pre-cargo conference as to whether the ship or shore facility are to receive the "unpumpable product remaining in lines and pumps" and the appropriate side then clear the lines to the other by any appropriate means.
That they be drained and then pumped either ashore, or to a cargo tank or slop tank on board.
Which of these are indications that a parcel is suspicious?
The parcel came from Joe in the safety department and arrived quicker than expected.
"The parcel is wrapped in clean, brown paper and is addressed to a crewmember from his wife."
"The parcel is addressed to no one in particular, arrives unexpectedly and seems heavy for its size."
The parcel smells like chocolate.
Any person serving on board who without the permission of the shipmaster leaves the ship in distress or other danger while the master still on board shall be liable to??????
Imprisonment for a term not exceeding 12 months.
Fines or imprisonment for a term not exceeding 12 months.
Fines or imprisonment for a term not exceeding 6 months.
Fines.
On the figure 4 possible definitions of the term "FORWARD" are given. Which one is the correct one?
Forward is given by B on the figure
Forward is given by C on the figure
Forward is given by A on the figure
Forward is given by D on the figure
On the figure 4 possible definitions of the term "TUG TOWING LINE" are given. Which one is the correct one?
Tug towing line is given by A on the figure
Tug towing line is given by B on the figure
Tug towing line is given by C on the figure
Tug towing line is given by D on the figure
What is the letter signal flag used by a vessel in response to an aircraft request for assistance in rescue operation?
A
Answering Pendant
Y
U
You are approaching a port when you see three flashing red lights in a vertical line at the entrance. What does this indicate?
Port closed
Vessels may proceed with caution
Use main channel only as secondary channel is closed
Serious emergency - all vessels to stop or divert according to instructions
Which of the following booklets would you consult to determine the number of persons required on duty while loading leaded gasoline on your tanker?
46 CFR Part 15 (Manning)
Oil Transfer Procedures Manual
Certificate of Inspection
IOPP Certificate
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.