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Home Online tests CES Oil tanker MASTER / Ch-Officer Test online CES 5.1 for MASTER / Ch-Officer, Oil tanker vessel
Online testing: Test online CES 5.1 for MASTER / Ch-Officer, Oil tanker vessel
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The test consists of random questions on a selected topic.
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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
Which class of fire involves liquids?
Class D fire
Class C fire
Class A fire
Class B fire
Which of the following names is given to the basic types of foam as far as they are differentiated according to the way bubbles are obtained:
AFFF foams
Polar foams
All answers are good
Chemical, physical or mechanical foams
*A fault in the fire detection and fire alarm systems will be indicated:
By fully automatic separate test boards where any faulty condition is initiated by audible and visual signals
By audible and visual signals at the control panel, distinct from the fire signal
By the general alarm
By the fire signal
*At what time must the required fixed fire detection and alarm systems with manually operated call points be in operation ?
In ports, if there is less than three responsible members of the crew on duty
During navigation only
At night-time only
At all times
Where shall manually operated call points be found?
So that no part of any corridor is more than 5m away from any manually operated call point
So that no part of any corridor is more than 20m away from any manually operated call point
there is no special rule for that
So that no part of any corridor is more than 10m away from any manually operated call point
*Which of the following preventive actions are required by the International Maritime Dangerous Guide Code?
Actions relating to the classification of the dangerous goods
Actions realting to the segregation of the dangerous goods
All these actions are required
Actions relating to the packing of the dangerous goods
*What is the term used to designate the work that may cause heat, sparks or flames and that cannot be performed if specific compulsory precautions are not taken in places where nearby flammable products could be present?
Hot work
Flammable work
Machinery labour
Specially hazardous work
Which of the following statements is NOT correct about high expansion foam?
You can survive in H.E. foam by breaking the bubbles to release the air.
It extinguishes by smothering.
It has only a limited cooling effect.
You cannot survive in H.E. foam as the oxygen content is reduced.
The greatest limitation of the fixed pressure water-spraying fire-extinguishing systems is a danger of
Stability reduction on ships with several decks
Overflowing
All answers are good
Stability reduction on ships with single deck
Multipurpose dry chemical powder
will only extinguish A and B fires
will conduct electricity with very high voltage
will never conduct electricity
will only extinguish B and C fires
Which of the following prevention actions offers the guarantee of an efficient intervention in an emergency
Planning of the emergency
Training of the crew
All answers are goods
The installation of protective measures
How often are "abandon ship" drills required to be held on cargo vessels according to SOLAS?
Once every 6 months.
Once every week.
Once every month.
Once every year.
You are on a vessel 10 nautical miles off the coast of Nigeria, West Africa. Are you allowed to dump empty glass bottles overboard ?
Yes, glass bottles can be dumped overboard
Yes, the bottles can be dumped if they are ground so that the resulting particles can pass through a screen with 25 mm openings
No, glass bottles can not be dumped overboard
Yes, the bottles can be dumped if they are ground so that the resulting particles can pass through a screen with 50 mm openings
What is the search system pattern called using 1 vessel?
Sector System
Lonely System
Single System
Square System
You are approaching shallow water with an Under Keel Clearance of 15%. What speed should you have when entering, and when should you slow down?
About 6-7 knots, slow down 30 minutes before entering
Reduce to slow or less in due time before entering
About 10 knots, slow down 15 minutes before entering
Maintain normal sea-speed, no need to slow down
"Overshoot" is an expression we use when talking about a ship's steering ability. What is the best way to determine how the "overshoot" is on your ship?
Do a 360 degrees turning circle
Do a standing turn
Do a 20/20 degrees zig-zag manoeuvre
Do a 540 degrees turning circle
Who is responsible for the voyage plan?
The Master
The person who has done the planning
The owner
The navigation officer
" On area A1 the function "" Reception of shore to ship distress alerts"" is mainly based on:"
the use of VHF DSC
the use of MF DSC
the use of SARSAT COSPAS Epirbs
the use of SART transponders
At an inspection of the radio station on board abroad:
The official log book must be shown
The skills of the radio-operators may be tested
The inspection will be in accordance with rules there
The operating certificates of the radio operators must be shown
According to the rules of GMDSS the frequency 2187.5 kHz is used for:
Don't know
distress and urgency traffic
alerting
distress traffic
The carrier frequency is also given as:
carrier frequency
assigned frequency
Don't know
suppressed frequency
Which class of emission is used for HF radio telephony transmissions ?
G3E
G2B
F1B
J3E
Which of the following is not systematically transmitted in a DSC distress call
MMSI of the ship in distress
distress time
position of the ship in distress
name of the ship in distress
Give the meaning of this symbol:
lifebuoy with light and smoke
lifebuoy with light and water dye marker
lifebuoy with light and hand flare
lifebuoy with line and hand flare
Which one of the listed requirements regarding immersion suits do not correspond to present regulations? The immersion suit shall be made of waterproof materials and constructed such that:
it will cover the whole body with the exception of the face
it can be unpacked and donned without assistance within 2 minutes
it will have sufficient built in buoyancy to avoid the use of a lifejacket
it is provided with arrangements to reduce free air in the legs of the suit
Which one of the listed requirements regarding the use of an immersion suit do not correspond to present regulation? The suit shall permit the wearer to:
perform normal duties during abandonment
swim a short distance through the water and board a survival craft
climb up and down vertical ladders from the survival craft embarkation point to the water
jump from a height of 4.5m into the water without being injured or damaging the suit
Which item among those below is included in the normal equipment of every rescue boat ?
a survival manual
one daylight signalling mirror with instructions
two buoyant rescue quoits
four rocket parachute flares
Which item among those below is included in the normal equipment of every liferaft ?
one copy of the prescribed life-saving signals
one searchlight which can work continuously for not less than 3 hours
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one boat-hook
Which item among those below is included in the normal equipment of every lifeboat ?
one immersion suit for each person
sea-charts and navigating equipment
a VHF transceiver
one whistle or equivalent
An inflatable liferaft accommodating 12 persons is fitted with:
2 entrances among which one is fitted with a semi-rigid boarding ramp
2 entrances each being fitted with a boarding ladder
2 entrances each being fitted with a semi-rigid boarding ramp
1entrance fitted with a semi-rigid boarding ramp
What is the meaning of this symbol ?
Survival craft pyrotechnic distress signals
Radar transponder
EPIRB
Survival craft portable radio
Which one of the following items has to be included in an abandon ship drill?
Launching and recovery of a survival craft
reporting to stations and preparing for the duties described in the muster list
Manoeuvring the lifeboat in the water
Starting and operating radio life-saving appliances
Which one of the following types of rope is the most dangerous to work with?
Steel wire.
Manila.
Nylon.
Polypropylene.
When carrying LNG cargoes it is useful to have information about its thermodynamic properties. What is a common source of information that can be used to obtain values for a wide range of these properties?
The IGC code.
The cargo manifest.
Material safety data sheet.
A Mollier chart.
Which cell voltage is required to trickle charge a lead acid battery?
1.2 V
2.5 V
2.0 V
2.15 V
What is the maximum allowable tank design pressure in the vapour space on Type "A" tanks?
0.43 barg.
0.5 barg.
0.25 barg.
0.7 barg.
Which is the "TUG TOWING LINE', in the figure?
The Tug Towing Line is indicated by B, in the figure
The Tug Towing Line is indicated by D, in the figure
The Tug Towing Line is indicated by C, in the figure
The Tug Towing Line is indicated by A, in the figure
When work must be done on High Voltage equipment, it is vital that the equipment is earthed (grounded) after isolation procedures have been carried out. Why is this?
To provide a reference point, and so ensure accuracy of any test results.
To ensure that the equipment does not overheat due to currents circulating through earth (ground).
To ensure that no energy remains in the system and that it cannot be recharged by external influences.
To ensure that it is dead, even if there was a flaw in the isolation procedure.
Why is nitrogen used for the inerting of hold spaces and interbarrier spaces on LNG carriers?
Because of the high oxygen content of combustion generated inert gas.
Because the carbon dioxide in combustion generated inert gas would freeze when in close proximity to the cargo.
Because of the high humidity in combustion generated inert gas.
Because of the high temperature of combustion generated inert gas.
Where do ships encounter pirates?
Ships encounter pirates off the Indian coastline
Ships encounter pirates off West Africa
Ships encounter pirates in the North Pacific ocean
Ships encounter pirates in the South Atlantic ocean
Indicate the correct name for the part marked on the sketch:
Push rod
Camshaft
Crankshaft
Connecting rod
On the figure there are four (4) possible definitions of the term "STARBOARD QUARTER" given. Which one is the correct one?
Starboard quarter is given by D on the figure
Starboard quarter is given by B on the figure
Starboard quarter is given by C on the figure
Starboard quarter is given by A on the figure
What kind of damage can ro-ro cargoes sustain when loaded above fuel tanks?
Tyre damages
Rusting of internal parts
All
Melting of internal plastic areas
Modern slow speed, two stroke diesel engines often have locating pins or pegs to keep the piston rings in a fixed position. Why is this arrangement used?
It ensures the rings cannot be mixed up and that they are fitted in the correct order on the piston.
It avoids the risk of the ends of the piston rings being forced out by the gas pressure and catching on the scavenge ports.
The piston ring gaps can be kept in line to control the gas pressure on each of the rings.
The piston rings are more difficult to lubricate because of the slow operating speeds and will wear more quickly if they are allowed to rotate.
As well as hazards due to flammability, toxicity and frostbite some liquefied gas cargoes may cause chemical burns in the event of skin contact? Which of the commonly carried cargoes given in the options is most likely to result in chemical burns due to skin contact?
Propane.
Butane.
Ethylene.
Ammonia.
How many fast rescue boats are required to be carried by a passenger ship of 500 GRT and above?
One fast rescue boat on each side of the vessel
One fast rescue boat and one rescue boat on each side of the vessel
Fast rescue boat to accommodate 50 % of the passenger on each side
At least one of the rescue boats shall be a fast rescue boat
Many modern medium and high speed diesel engines operate at very high power ratings resulting in relatively high bearing loads. In order to accommodate these loads the bearings are required to have a high load carrying capacity. What kind of bearings are normally used for main and bottom end purposes to achieve this?
Thin steel shells with a thin white metal lining.
Thick white metal types with the white metal cast into the keeps to give extra fatigue strength.
Thin steel shells with a copper lead lining and a running in overlay.
Thin steel shells lined with aluminium tin alloys.
Where is the "WINDLASS", in the figure?
The Windlass is inidcated by D, in the figure
The Windlass is inidcated by B, in the figure
The Windlass is inidcated by A, in the figure
The Windlass is inidcated by C, in the figure
What gives the condenser pressure in a 1 stage direct cooling plant?
It is the seawater temperature that gives the condenser pressure in a 1 stage direct cooling plant.
It is the cargo temperature in the cargo tank that gives the condenser pressure in a 1 stage direct cooling plant.
It is the seawater flow in the condenser that gives the condenser pressure in a 1 stage direct cooling plant.
It is the cargo vapour temperature that gives the condenser pressure in a 1 stage direct cooling plant.
A ro-ro unit weighing 2mt is to be loaded athwartships and lashed by belts of SWL 0.6mt. How many lashing belts should be used to secure the unit?
7
A minimum of 6
8
A minimum of 4
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.
What percentage of anti-freeze fluid is added to the L.P.G. compressor cooling-water system?
60 %
25%
10%
90%
According to the industry guidelines in the ISGOTT Guide and assuming terminal regulations do not require otherwise, what action should be taken to drain accumulated water from the deck during cargo handling operations in rainy conditions?
The scupper plugs are to be kept closed and sealed; any volume of water that is not contained should be allowed to flood over the fishplate
The accumulated water is to be drained periodically and the scupper plugs to be immediately closed once the water has been run off. Water containing oily residues is to be transferred to a slop tank or other suitable receptacle
During periods of heavy rain, it is considered prudent and safe to allow water to drain continuously; therefore scupper plugs should be removed in such conditions
The accumulated water is to be transferred to a spare tank
The deaerating heater is used on
Only low-pressure boilers
The closed-type feed-water system
All steam plants
The open-type feed-water system
What do Tonnes per Centimeter immersion (TPC), Moment to Change Trim by one Centimeter (MCTC) and Longitudinal Centre of Floatation (LCF) have in common?
They vary with changes in displacement
They vary with small angles of heel
They vary with changes in the shape of the waterplane
They remain unaffected by changes in displacement
What is the purpose of an automatic trip system onboard, and how does this function?
Automatic trip is to avoid tanks being cooled too much, the trip function is often initialised by a float switch or a temperature switch.
Automatic trip is to avoid vacuum to be generated in cargo tanks.
Automatic trip is to avoid over pressurising in cargo tanks and other pressurised vessels, the trip function is often initialised by a float switch.
Automatic trip is to avoid tanks and pressurised vessels becoming overloaded, the trip function is often initialised by a float switch.
On oil tankers, what is generally used to control the safety of the atmosphere in the cargo tanks?
Inert Gas
Water
Nitrogen
Hydrogen Sulphide
In what kind of measuring equipment might we find a Bourdon-tube?
In a temperature transmitter.
In an A/D converter.
In a pressure transmitter.
In a flow metre.
Which of the following is the minimum acceptable value of insulation resistance for High Voltage equipment?
100 k Ohms
1M Ohms
1G Ohms
100 M Ohms
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.
What is the main problem associated with oil in a steam boiler water system?
It causes the gauge glasses to become dirty preventing the oerator from seeing the water level..
It causes corrosion of steel in the boiler.
It forms an insulating film on heat transfer surfaces with the risk of overheating.
It increases scale deposits in the boiler.
Jim
g
d
a
h
A non-reversing medium speed diesel engine is used to drive a controllable pitch propeller through a pneumatic clutch and reduction gearbox. The engine has been tested and brought up to operating temperatures on engine control. Which of the options given would be the preferred status of the engine and associated equipment when it is handed over to bridge control?
Engine stopped with clutch disengaged and propeller in zero thrust position.
Engine running, clutch disengaged, propeller at zero thrust.
Engine running with clutch engaged and propeller in ahead position.
Engine stopped with clutch disengaged and propeller at zero thrust.
You are alongisde, port side to, about to commence loading several grades of chemicals. The Duty Officer instructs you over the walkie-talkie to proceed to the port manifold and open the valve to 4 port line. When you get there, there is no hose connected to that line. What will you do?
Take a look at the starboard manifold. There is a hose loop between 4 port and 4 starboard lines. Assume the Duty officer must have meant this side and open 4 port line on this manifold.
Open the valve to 4 port line as instructed.
Although there is no hose connected to 4 port line, there is one connected to 3 port line. Assume the Duty Officer must have meant this line and open this valve instead.
Report the situation back to the Duty Officer. Request clarification and confirmation of the instruction.
Pitting corrosion is found around the steam drum water line of a high pressure steam boiler. From the options given, select the one most likely to cause this condition.
Dissolved oxygen levels are too high.
Seawater leakage from the condenser.
Total dissolved solids levels are too high.
Excess hydrazine dosage to the feed water system.
Some large slow speed diesel engines have jack bolt arrangements for retaining the main bearing top keep in place rather than the more conventional stud bolts. How does this arrangement affect the maintenance and checking procedures for the tie rods on the engine?
It has no effect since the tie rods and jacking bolts have completely separate functions.
The tie rods should be fully tensioned before the jacking bolts are loaded to avoid overload of the bearing caps and frame structure.
The tie rods and jacking bolts must be tightened simultaneously to avoid excess load on either component.
The jacking bolts should be fully loaded before the tie rods are tensioned to avoid excess loads on the tie rods.
What precautions must be taken prior to loading cement after carrying sugar?
No traces of sugar should remain in the cargo holds
The cargo holds must be inspected
Steelwork in the cargo holds must be protected by straw mats
Steelwork in the cargo holds must be protected by kraft paper
What is Breaking Stress with regard to cargo lashings?
The maximum stress that can be applied to a cargo lashing
The maximum load that can safely be applied to a cargo lashing
The safe working load of a cargo lashing plus 10 percent
The load beyond which a cargo lashing will deform
In the diagram which line would be the "AFT SPRING", if the vessel was port side alongside a jetty?
The Aft Spring is indicated by B, in the figure
The Aft Spring is indicated by C, in the figure
The Aft Spring is indicated by D, in the figure
The Aft Spring is indicated by A, in the figure
Which of the given statements is true in relation to the features and operation of a 4 stroke diesel engine ?
4 stroke engines are not required to have crankcase relief valves fitted.
The camshaft rotates with half the RPM of the crankshaft in a 4 stroke engine.
A 4 stroke engine always has scavenge ports near the bottom of the cylinder liner.
A 4 stroke engine has an ignition towards the end of every upward stroke of the piston.
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 RoRo vessel, what is important with regard to a loading ramp resting on a jetty?
The position of mats between the ramp flap and jetty must be maintained at all times
Visitors must not be allowed access to the vessel via the ramp
The ramp's position must be maintained
It must not foul the ship's mooring ropes
What will happen if you overload the plate in a microwave?
Standing time will need to be doubled.
You will need to double, or even treble, cooking times and accept that the outer parts of the food will be overcooked.
Cooking will be uneven and there will be "cold spots" in the food.
The oven will not work in automatic mode.
What is the approximate normal daily cargo "boil off" rate for an LNG carrier of 125000 cubic metre cargo capacity?
From 0,75 % to 0,80 % per day of total cargo.
From 0,30 % to 0,35 % per day of total cargo.
From 0,15 % to 0,20 % per day of total cargo.
From 0,01 % to 0,05 % per day of total cargo.
When we are measuring level of liquids with a conductivity level indicator, the name of the sensing device is:
Electrodes
Displacement probe
Ionization chamber
Capacitance probe
Electric ozone generators are sometimes used to remove residual odours from refrigerated cargo spaces. Which of the options given is the additional action required to ensure the operation is successful?
The cargo space should be cooled down using the refrigeration plant.
The cargo space should be fumigated.
The fans should be run continuously in the cargo space.
The source of the odour must be located and removed.
What is the correct way to obtain a reduced capacity with a centrifugal pump?
Throttling of delivery valve
Throttling of suction valve
Adjust the relief valve
Open the priming line
What is IMO's requirement to maximum temperature for fully pressurised cargo tanks at ambient temperature?
50 C.
42 C.
40 C.
45 C.
Which electronic component or system of components is this graphical symbol illustrating ?
Battery charger
Auto transformer
Inverter
Low pass filter
On fully pressurised liquefied gas carriers the cargoes are usually carried at atmospheric temperatures. Is frostbite still a hazard on such vessels if there is leakage from the cargo pipe system?
Yes, but only if cargo vapour contacts the skin.
No frostbite is only a hazard when cargoes are refrigerated.
No, the cargo will vapourise and disperse quickly.
Yes, the liquid will flash off to its' fully refrigerated tempearature.
You are approaching the port entrance. What do these lights mean?
A vessel may proceed only when she has received specific orders to do so, except that vessels which can safely navigate outside the main channel need not comply with this message.
Vessels may proceed - two-way traffic.
A vessel may proceed only when she has received specific orders to do so.
Vessels may proceed - one-way traffic.
You have just completed the discharge of a cargo of Lube Oil additive and are clearing the ship's lines to shore. What piece of equipment can be fitted between a drain cock and the air line to safely release any excess pressure before disconnecting the air line?
An expansion valve.
A reducer.
A quick-coupling.
A three-way valve.
Which of the options given is most likely to result in overheating of a ball bearing fitted to a pump shaft?
Running the pump at full capacity.
Partly filling the bearing with grease.
Fitting a sealed bearing that cannot be greased.
Completely filling the bearing with grease.
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."
Where shall you be able to activate the ship security alert system on board passenger ships?
From the navigation bridge and in at least one other location
Captain's- and Chief Officer's office
Navigation bridge
Captain's office
You have just started to load Dicyclopentadiene to 5 port and starboard cargo tanks, but no cargo seems to be coming into the tanks. What will you do?
Carefully slack the bolts back on the connections, working initially on the off-shore mainifold, to determine how far the pressure extends in the ship's pipeline system, to identify which valve is giving the problem.
Stop cargo - notify the Duty Officer and / or the terminal dependng on the agreed communication procedure. Re-check the lines, valves and connections carefully, bearing in mind that there might be a build-up of pressure. Report as appropriate.
Open the main lid on the tank and use a flashlight to try and see if there is a problem with the pump or line inside.
Say nothing. Re-check all valves. Just open it, if one is found closed.
On a General Cargo ship all wire strops used for cargo work must be marked with what?
The diameter of the strop in millimetres (mm)
The SWL and certificate number
The name of the manufacturer
The stevedoring company
During maintenance work at sea an engine room rating is moving a heavy component to the workshop using a chain block attached to an overhead trolley on a rail. Part way through the operation the rating is asked by the engineer to go immediately to the store for some equipment. What should the rating do?
Immediately land the component on the deck and secure it to a hand rail stanchion and go and get the equipment from the store.
Leave the component suspended from the chain block and go and collect the equipment from the store.
Continue with the moving operation until the component is properly secured in the workshop before going to the store for the equipment.
Immediately land the component on the deck but leave the chain block attached and go and collect the equipment from the store.
When using ejector for stripping, in what order will you open the valves?
The ejector’s suction valve first.
First the driving water pressure valve.
All valves on the delivery side and adjust the propellant pressure.
No special order.
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.