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Home Online tests CES Gas tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
Online testing: Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
Online test
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The test consists of random questions on a selected topic.
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Give the meaning of the following symbol
Line throwing appliance
Rocket parachute flares
EPIRB
Survival craft distress pyrotechnic signals
How many rocket parachute flares are carried in each lifeboat?
12
Nil
4
6
Which one of the following appliances is allowed to burn an oil fuel, the flash point of which may be a little bit lower than the one used for the main *engine?
The incinerators
The emergency generators
The inert gas generators
All the answers are wrong
Which one of the following combustible materials involves a " class A " fire ?
Metal
Liquefied gas
Wood
Solvent
The effectiveness of foam is based on:
dilution
Inhibition
smothering and cooling
smothering and dispersion
With an Inmarsat-C terminal the option ‘PSTN’ for addressing is available. This option:
to deliver a message by telephone via a modem on the computer of the subscriber
to have the operator read the message by phone
Don't know
delivers a message as a telegram
Regular ‘updating’ of a ships’ position in an Inmarsat-C installation is necessary
To enter the correct data to the disk antenna
To keep to the correct Inmarsat-region
To have the correct position in case of accidents
To inform the satellite of ships position
What is false regarding the function :” Transmission and reception of on scene communications ”
On area A1 this function is based on the use of VHF R/T
On area A4 this function is based on the use of HF R/T
On area A3 this function is based on the use of VHF or/and MF R/T
On area A2 this function is based on the use of VHF or/and MF R/T
What should you do if the temperature of Hydrogen Peroxide Solution 65 % carried is raising 2° C per 5 hours and the temperature is above 40° C ?
The cargo should be monitored closely for the next 12 hours.
The cargo should be heated up to 45° C.
No special action to be taken.
To avoid uncontrolled decomposition the cargo should be discharged overboard.
Where should the placard you are shown be located, according to U.S. Coast Guard regulations ? (Title 33-Navigation and Navigable waters, § 155.440 )
In a conspicuous place at the bilge and ballast pump control station
In the wheelhouse
In a conspicuous place in each machinery space
Both in a conspicuous place in each machinery space and in a conspicuous place at the bilge and ballast pump control station
How will you treat a seasick person?
Encourage him to drink a lot of lukewarm sea water.
Leave him in bed or request him to have some fresh air.
Force him to eat any kind of fat food.
Make him swallow seasick pills until he stops vomiting.
Asthma is a distressing condition in which the muscles of the air passage go into spasm. How can the asthma attacks be triggered off ?
Nervous tension,allergy, or none obvious cause.
Too much fresh air activity
Loud music
Not keeping the diet
What would be the correct definition of the term "Squat"?
Squat is the reduction of underkeel clearance due to increase of water flow under the keel and an increase in the water pressure
Squat is the reduction of underkeel clearance of a ship when it moves through shallow water due to a reduction in water pressure.
Squat is the loss of effectiveness of the rudder and propeller as a ship moves through shallow water due to the reduction of water pressure.
Squat is the reduction of underkeel clearance and the possible change of trim of a ship when it moves through shallow water due to a reduction in water pressure.
You are sailing in shallow water, with 15% Under Keel Clearance. Turning the ship around, what space do you need compared to deep water?
The turning diameter of your ship is the same for all water depths
Need less space than normal
Need more space than normal
To port less, to starboard more space
The rudder is hard over, full ahead in deep water. How much lift force remains when the engine is stopped?
About 20 %
About 50 %
About 5 %
About 80 %
Which of the following duties shall be included in the "muster list" as being assigned to crewmembers in relation to passengers ?
clearing the escape routes
ensuring that every passenger is provided with an immersion suit or a thermal protective aid
warning the passenger
ensuring that extra food and water is taken to the survival craft
*In a distress situation and immediately after the distress signal has been sounded, what next action should be taken by the officer on duty ?
send distress signal to call for help
use the VHF radio telephone to ask ships in the vicinity to stand by
use the intercom to inform crew and passengers of the reason for the alarm
call the nearest coast radio station
The breaking strength of the painter in a liferaft permitted to accommodate 15 persons is at least:
7,5 kN
10 kN
5 kN
2,5 kN
If a distress signal is received, what would you do?
Post extra look-out.
Contact SAR Authorities via nearest coastal Radio station.
All of the alternatives together.
Try to make contact with the vessel in distress.
The thermal insulation provided to the wearer of an immersion suit made of material with inherent insulation is sufficient to ensure that the wearer's body core temperature does not fall more than:
6°C after a period of 2 h immersion in calm water at a temperature of between 0°C and 2°C
2°C after a period of 6 h immersion in calm water at a temperature of between 0°C and 2°C
1°C after a period of 6 h immersion in calm water at a temperature of between 0°C and 2°C
1°C after a period of 1 h immersion in calm water at a temperature of between 0°C and 2°C
Which of the following fittings shall be provided to all lifeboats:
handholds on the underside of the hull
permanent boarding arrangements on both sides to enable persons in the water to board the lifeboat
a remotely operated steering arrangement
an electric power starting system for the propulsion engine with one rechargeable energy source
Which item among those below is included in the normal equipment of every rescue boat ?
watertight receptacles containing water for each person
a painter attached to the release device and placed at the forward end of the boat
two tin-openers
one set of fishing tackle
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
a jack-knife attached by a lanyard
Which item among those below is included in the normal equipment of every lifeboat ?
a VHF transceiver
a searchlight which can work continuously for not less than 3hours
one immersion suit for each person
sea-charts and navigating equipment
What is the minimum number of immersion suits that are required to be provided for each open lifeboat under SOLAS rules?
One per person
3
6
Nil
Which of the following detailed explanations should be mentioned in the Training Manual ?
The use of escape routes and other escape methods
The use of surface to air visual signals to be used by survivors
The use of all survival equipment
The use of navigational equipment for survival crafts
*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
Which one of the following types of rope is the most dangerous to work with?
Steel wire.
Manila.
Nylon.
Polypropylene.
What kind of permits have to be obtained before starting hot work in tanks?
Permit for entry.
Cold work permit.
Hot work permit + Permit for entry.
Hot work permit.
Indicate the correct name for the tool on the sketch:
Padlock
Adjustable wrench
Flexible pipe
Water Pump Pliers
A heat exchanger of the tube and shell type is used for cooling lubricating oil with seawater as the secondary fluid. Which of the options would indicate that the tube stack was becoming fouled (scaled or coked) rather than blocked?
An increased temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.
A reduced temperature difference between the seawater inlet and outlet and an increase in the temperature difference between the lubricating oil inlet and outlet.
An increase in the temperature difference between the seawater inlet and outlet and a reduced temperature difference between the lubricating oil inlet and outlet.
Signals are often used by aircraft engaged in search and rescue operations to direct ships towards a casualty. This aircraft flies across your stern, rocking his wings. What is the meaning of the signal?
The aircraft is telling me he does not understand my last message.
The assistance of your vessel is no longer required.
This is part of a sequence of manoeuvres by which the aircraft will indicate a direction for my vessel to proceed in.
The aircraft is telling me he is preparing to drop supplies or personnel in the water.
A chlorine carrier must be equipped with a chlorine absorption plant connected to the cargo tanks and cargo lines. What is the gas detectors alarm setting?
10 ppm.
20 ppm.
5 ppm.
15 ppm.
How are the membrane cargo containment systems that are frequently used on LNG carriers supported?
The membrane system is fully self supporting.
The membrane system is supported directly by the inner hull through support brackets.
The membrane system is supported by the inner hull through the insulation.
The membrane system is formed with corrugations which gives sufficient support.
What are cargo residues considered as under MARPOL 73/78?
Marine Pollutants
Oily mixtures
Garbage
Wastes
A bulk vessel is loading to summer load draught of 10.00 metres; the present draught amidships are 9.96 metres port and 9.98 metres to starboard; The sinkage to maximum loading is?
The sinkage allowed is 30 centimetres ( 0.30 metres)
The vessel is overloaded
The vessel is already at maximum draught
The sinkage allowed is 3 centimetres ( 0.03 metres)
What is the normal maximum oil content permitted for machinery space bilge overboard discharge via OWS equipment?
15 ppm
100 ppm
Zero ppm
50 ppm
A death of one of the ship’s crew occurs on board whilst the vessel is at sea, what actions must you legally take?
Confirm death. Have body moved to a freezer compartment. Contact local agent and British Consul as appropriate. Complete Births and Deaths section of Official log book. Sign seaman off in his absence. Make an entry in the deck log book detailing actions
Confirm death. Notify next-of-kin. Make an entry in the narrative section of the Official log book, sign seaman off in his absence Notify agent and British Consul when abroad. Have belongings collected and packed by two crew members, and making three copi
Confirm death. Contact local agent and arrange to have body medi-vacced from vessel. Notify company. Complete births and deaths section of official log book. Arrange for relief at next port . Sign seaman off in his absence.
First aspect confirm death. Notify company, and make arrangements for notification of next-of-kin. Arrange to have body moved to freezer area. Notify local agents and British Consul when abroad. Complete Births and Deaths section of Official Log book. Ma
What immediate actions should the Officer of the Watch take when the ship goes aground on an uncharted shoal in the middle of the ocean?
Stop engines and call the Master
Stop engines and tell the engine room to switch over to high suctions
Stop engines and immediately request "Full Astern"
Sound the General Alarm and plot the ships position
What is the traditional seaman's saying that suggests the procedure to follow when carrying provisions around the galley and storerooms and up and down stairways?
"One hand for the ship and one for yourself".
"One hand for the Captain and one for the Cook".
"One hand for the ship and one for the stores".
"Keep your hands to yourself".
Cargo compressors are often used to handle cargo vapour on LPG carriers. How is liquid cargo prevented from entering the suction side of the cargo compressor?
By filling the vapour line between the cargo tank and the compressor with silica gel.
By fitting a liquid separator in the vapour line between the cargo tank and the compressor
By fitting a drain valve on the vapour line between the cargo tank and the compressor which is left open when the compressor is operating.
By fitting a drier in the vapour line between the cargo tank and the compressor.
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.
For how long must you save the printouts from the ODME?
Until the end of the voyage.
3 years.
5 years.
3 months.
Your ship has its main entry door from the maindeck on the starboard side, a few metres back from the front of the accommodation. It is also the closest emergency exit from the ship's offices and the crew mess-room in the event of an emergency. You are about to commence loading cargo. There are no significant security concerns. What should happen to the door?
It can be open, provided the wind is blowing away from the accommodation.
It should be closed and locked.
It should be closed, but not locked.
It should be open in case an emergency occurs.
What is a Gangway?
A Gangway is an interval of time between a change of working gangs, on board
A Gangway is a portable means of access to a ship
A Gangway is an accommodation ladder
A Gangway is a temporary means of access into the cargo holds
What cooling medium is normally used to cool the condenser of a fresh water generator?
Brine
Seawater
Distillate (Freshwater)
Air
Which is the "AFT BREAST LINE", in the figure?
The Aft Breast Line is B, in the figure
The Aft Breast Line is C, in the figure
The Aft Breast Line is D, in the figure
The Aft Breast Line is A, in the figure
An indicator card from a cylinder of a slow speed diesel engine shows a high maximum pressure occuring earlier in the cycle than normal with a normal compression pressure. From the options given, which action is most likely to identify the cause of the problem?
Check if the fuel injection valve is partly blocked.
Check if the fuel injection pump timing is correct.
Check if the fuel viscosity and temperature are correct.
Check if the fuel filters are blocked.
What are the requirements for the number of portable gas measurement instrument(s) on tankers?
At least one instrument for measuring %LEL and one instrument for measuring volume %
Sufficient number of instruments.
At least 2 portable instruments for measuring flammable vapours.
At least 1 portable instrument for measuring flammable vapours.
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 name is given to the short, intial wash given to tanks that have just contained certain particularly hazxardous cargoes before the ship leaves the unloading port and where the washings are landed to shore or to a slop barge?
A mandatory customer post discharge wash.
A confirmation cycle.
A SOLAS pre-flush.
A MARPOL pre-wash.
You are on a power driven vessel underway in open water. This vessel is sighted directly ahead. The distance is closing slowly. What action will you take under the International Collision Regulations and why?
This is a vessel engaged in towing and I am seeing the stern light of the tow. The tug is not however showing any lights indicating she is restricted in her ability to manoeuvre. I will however display good seamanship and keep out of her way.
I will keep out of her way. I am the overtaking vessel and am obliged to keep clear under rule 13.
I will maintain my course and speed. The other vessel is being overtaken and is therefore obliged to keep out of the way by rule 13.
The vessel is on a steady bearing and the distance is closing. I will therefore take avoiding action, altering course to starboard and sounding one short blast under rules 14 and 16.
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.
Some centrifugal cargo oil pumps are designed with an automatic stripping system, which allows the cargo oil tank to fully discharge its contents. By what principle does such a stripping system operate?
On the basis that, if cargo vapour can be stopped from entering the cargo pump suction inlet, the flow will continue without cavitation.
By automatically reducing the rate at which oil cargo enters the cargo pump, such that any vapour lifted along with the liquid does not cause a loss of suction.
By the optimum size and positioning of the suction inlet that feeds the automatic stripping system, which ensures that the cargo oil tank is discharged to the maximum possible extent.
On the principle that if the suction is fitted low enough in the cargo oil tank and a specified minimum trim is maintained, suction will be available until the tank is completely discharged.
The main engine is running steady. What is the normal shut down pressure for "Lub.oil inlet to main bearings"?
0,5 Bar
0,2 Bar
2,0 Bar
1,0 Bar
At what temperature would you expect to carry a fully refrigerated cargo of ammonia?
- 43° C
- 23° C
- 33° C
- 53° C
Which of the following letter combinations represents a flow indicating controller on a process and instrumentation diagram
FIC
LIR
FLO
FIR
What would you do if you saw a container being damaged during loading operations?
Note the date and time of occurrence, container number and if possible take photographs
Call the duty officer
Inform the relieveing watchkeeper
Inform the master
What is the name of this unit?
A slip hook
A hydrostatic release unit
An antistatic release unit
A liferaft release unit
When discussing ther chemistry of petroleum cargoes, if 'Alkanes' are saturated hydrocarbons, what are unsaturated hydrocarbons?
They are also referred to as Alkanes.
Pentenes.
Alkenes.
Octanes.
What do the letters IMDG stand for?
International Monitoring Department (Geopolitics)
Interactive Maritime Dangerous Goods.
International Marine Dangers Group.
International Maritime Dangerous Goods.
When is the 2nd Mate supposed to call the Captain?
30 minutes from the pilot station
Just at the usual time
When anything unusual happens, and 30 minutes before the pilot station
Just when he happens to remember
What is shown on the new ‘Marine Pollutant’ label under the IMDG Code?
The letter 'P'
A dead tree and dead fish
Dead fish and dead sea birds
The letters 'PP'
What gives the condenser pressure in a 1 stage direct cooling plant?
One, two and three stage piston compressors.
One, two and three stage screw compressors.
Piston, screw and centrifugal type compressors.
Oil free screw and centrifugal type compressors.
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.
You notice the sump level in an engine has increased and no new oil has been added. What action would you take?
Reduced the load, and look after fuel or water leak.
Stop the engine and look for a fuel or water leak.
Drain some oil from the engine.
Leave it the same.
Which of these statements is correct?
Under the Hague and Hague-Visby rules a shipowner must exercise due diligence to make the vessel seaworthy
Under the Hague rules there is an obligation to make the vessel seaworthy
A vessel may be seaworthy even though she may not be cargo worthy
On liner routes cargoes must always be lashed in a standard manner irrespective of season
Which of these actions should crew take if a suspicious object that may be a bomb is located during a search?
Cover the suspicious object with a box or blanket.
Place the object in a desk drawer or file cabinet.
Throw the object overboard.
Confirm with their search partner that the object found is suspicious.
The picture shows a liquid filled thermometer. Liquid filled thermometers and manometers are often installed onboard ships. What is the main purpose for the liquid filling of such pointer instruments?
Keep the rear side of the front glass clean
Avoid water penetration from outside
Reduce mechanical wear on the internal parts caused by vibration
Compensating for changes in ambient temperature
Which of the following pump types could be damaged if the discharge valve is closed before the motor is stopped?
Turbine pump
Gear pump
Propeller pump
Centrifugal pump
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
In which locations will Ro-Ro units be stained when a vessel is at sea?
Units stowed on ramp slopes
Units stowed near watertight doors
Units stowed in way of fan duct exits
Units stowed near gas tight doors
Which of these emission control requirements is correct?
Incineration of PCB's is permitted
Equipment containing ozone-depleting substances may be dumped at sea 50 miles from land
Installation of an exhaust gas cleaning system reduces emission of nitrogen oxide
Low sulphur fuels reduce emissions of volatile organic compounds
What is the main purpose of a heat exchanger in a cooling water system?
To reduce water turbulence
To maintain a steady pressure in the system
To reduce engine room temperature
To transfer heat from one fluid to another
Passenger ship engaged in international voyages shall carry through a muster for all passengers. At what latest time after embarkation shall the muster take place?
Before departure
No time limit
4 hours after the passengers embarked
Within 24 hours after the passengers embarked
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
What would indicate the onset of Parametric Rolling?
When the wave encounter period approaches the natural roll period of the ship
When twice the wave encounter period approaches the natural roll period of the ship
When wave heights experienced from either quarter exceed 6 meters
When wave heights experienced from the bows exceed 6 meters
If the strength of the wind is related to the pressure gradient and the space between the isobars, which of the following statements is correct?
The closer the isobars are together the stronger will be the predicted wind.
The pressure gradient is a measurement of the distance between the high and the low pressures and is not associated with isobars.
Strong winds are found in areas where the isobars are not close together
The wind force is related to the difference in pressures and blows directly between the centres of high and the low pressure
A large post Panamax container vessel is sailing during the winter months. In which sea areas is she most likely to encounter conditions which could cause a parametric roll?
The North Pacific.
The South China Sea.
The Indian Ocean.
The North Sea.
When an engine is working normally, the lubricating oil return temperatures are moderate and the running temperatures of the moving parts are also moderate. Lubricating oil is not a volatile liquid and the temperature inside the crankcase is insufficiently high to cause concentration of vapor. What would be the flash point of the lubricating oil?
Above 250 deg C
Above 150 deg C
Above 100 deg C
Above 200 deg C
On the figure 4 possible definitions of the term "UNDER KEEL CLEARANCE" are given. Which one is the correct one?
Under keel clearance is given by D on the figure
Under keel clearance is given by A on the figure
Under keel clearance is given by C on the figure
Under keel clearance is given by B on the figure
The circuit diagrams illustrate four different methods of wiring between a Pt 100 temperature sensor and its signal processing electronics. Which of the wiring methods gives the best measuring accuracy?
Figure 2
Figure 1
Figure 4
Figure 3
High Voltage systems rely on the installed protective equipment being able to interrupt any fault in the system. Throughout the system, the fault level has been calculated, and under no circumstances must the system be modified to exceed this fault level. What is meant by fault level?
The amount of apparent power, that would be drawn from the generating plant, when a short circuit occurs at the bus bars.
The current level flowing into a dead short to earth at any point on the ship, directly from the High Voltage system.
The amount of apparent power that could flow into any fault at any point in the electrical network.
The current level flowing into a symmetrical short circuit fault between all three phases.
Transportation of oil at sea can be divided in two groups, which?
Crude oil and fuel oil.
Crude oil and refined products.
Crude oil and black oils.
Crude oil and lubricating oil.
What is static amplifying
Change in input signal divided by change in output signal
Change in output signal divided by change in input signal
Corresponding change in signals
Change in input signal times change in output signal
Which of the following insulation materials that are used onboard gas carriers has the highest diffusion resistance?
Mineral wool.
Polyurethane foam.
Perlite.
Air.
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
A bulk carrier is loading to summer loadline marks ; to which part of the loadline marks does the vessel load in salt water (R.D.1025)?
The bottom of the summer mark
The winter mark
The top of the summer mark
The fresh water mark
A vessel which normally operates with the engine room in UMS mode is unable to do so because of defects to some of the critical alarm functions. What are the main considerations that the Chief Engineer must take into account when planning alternative arrangements to cover the engine room requirements until the defects are cleared?
A work rota is established to ensure at least one person is in the engine room at all times while the defects exist.
A work rota is established to ensure that normal routine maintenance is carried out on time in accordance with the planned maintenance schedule.
A work rota is established to ensure that the necessary repairs can be carried out as soon as possible.
A work rota is established to ensure full coverage of engine room watchkeeping duties and adequate rest periods for the engineering staff.
Most of the engine makers recommend to change the cylinder head gaskets each time a piston overhaul is carried out. Why?
To increase the consumption of parts so they can make more money
To be granted a proper sealing with a new gasket
To obtain a proper sealing and correct distance between piston and cover in TDC position
To avoid heat transfer to the cylinder head.
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.