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Главная Онлайн-тесты CES Gas tanker 2nd-Off / 3rd-Off Онлайн-тест CES 5.1 для 2nd-Off / 3rd-Off, Gas tanker vessel
Онлайн-тестирование: Онлайн-тест CES 5.1 для 2nd-Off / 3rd-Off, Gas tanker vessel
Онлайн-тест
Описание
Тест состоит из случайных вопросов по выбранной теме.
Вопрос 1 из 90
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The necessary elements to create fire are
heat and chain reaction
combustible, air, flames and gas
combustible, comburent, flames and chain reaction
combustible, comburent, heat and chain reaction
Which of the following are frequent causes of fires in accommodation?
1Smoking in bed. 2 Covering of electric fires with blankets. 3 Overloading electric plugs.
Covering of electric fires with blankets
Smoking in bed
Overloading electric plugs
Welding and use of open flames on board tankers in operation are subject to regulation laid down by the Norwegian Maritime Directorate (Norwegian Ship Control Legislation - NSCL). During preparations for welding or hot works, the following item shall always be checked:
Inert gas composition.
Type of oil or gas chemicals having been carried in the actual tank and the adjacent tanks.
Cleaning and venting methods and systems.
Working performance and capacity of ventilating system.
After smoking, cigarettes should be disposed off as follows:
Disposed of in an ashtray, ensuring that it is extinguished
Dropped into a waste bin
Dropped over the lee side only so that it cannot blow back on board
Dropped over the side only if you are certain they are extinguished
What kind of measure is the division of the vessel in upright areas by using thermic and structural separations?
It is neither a prevention nor a protection measure
It is a prevention measure
It is both a prevention and protection measure
It is a protection measure
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.
What is the correct location of portable fire fighting equipment during loading/discharging operations?
On the forecastle and poop deck?
One fire hose and one powder extinguisher forward of the manifold area?
One fire hose forward and aft of the manifold, and portable fire extinguisher near to ships manifold?
Not necessary to locate portable fire fighting equipment near to the manifold?
*Which of the following spaces may be protected by a fixed carbon dioxide (CO2) fire-extinguishing system?
Machinery spaces of category A
Cargo tanks of tankers
All the spaces mentioned
Special category spaces of passenger ships
*What is the inherent danger in using halon to extinguish an extensive fire?
Depletion of oxygen in the air?
Development of explosive gases?
Depletion of the ozone layer?
Development of toxic gases?
*What quantity of service fuel must be available for a diesel driven emergency pump before it is necessary to use any reserve fuel?
To allow at least 12 hours of operation
To allow at least 6 hour of operation
To allow at least 3 hours of operation
To allow at least half an hour of operation
What are the main basic components of a portable extinguisher?
The container, the hose, the safety pin
The shooting nozzle, the seal, the safety valve
The container, the extinguishing agent, the impulsion system
The seal, the pressure gauge, the extinguishing agent, the safety pin
On board they want to have a dial-phone call via Inmarsat with the Apollogracht. In the guides the following ID’s are found for the Apollogracht:344320000, 424432010, 424432020, 1300210, 36715. What ID should be chosen:
424432010
424432020
1300210
Don't know
A person slowly feel more sleepy and thirsty.The skin and slimhinner become very dry and there is a sweet taste of the breath. The glukose reaction shows positive. What kind of medicine will the person need as soon as possible?
Insuline.
Sugar lump, sugar drink or something sweet.
Nothing at all.
A glass of cold milk.
Most cases of oil pollution are caused by human errors, often jointly by seafarers and shore based clean-up teams. What has proved to be the essential mistake executed by the shore people regarding environment damages?
Usage of oilbooms?
Usage of sawdust?
Usage of absorbent pads?
Dispersement of chemicals?
Give the meaning of the following symbol
Emergency station
Powder handgun
Locker with protective clothing
Flame detector
What is the correct way in approaching the SPM, taking the prevailing wind, current and waves into consideration?
As in example 4
As in example 2
As in example 3
As in example 1
You are in confined waters. Is there any danger in the situation sketched below if you should lose engine power?
She will sheer slowly to port
She will drift to port, but rather slowly as you are loaded
Your ship will sheer to starboard rather quickly with the possible consequence of grounding
Your ship will lose headway, but there should be no immediate danger
Give the meaning of the following symbol:
davit launched liferaft
liferaft
muster station to davit launched liferaft
muster station to liferaft
Give the meaning of the following symbol:
davit launched liferaft
lifeboat
liferaft
rescue boat
What shall a rescue person use if he has to jump into the water in order to assist a survivor?
Survival suit
Lifeline
Survival suit and lifeline
Lifejacket
Which one of the listed requirements regarding containers for inflatable liferafts do not correspond to present regulations? The liferaft shall be packed in containers that are:
marked with the date when last serviced
of sufficient buoyancy to operate the inflation mechanism should the ship sink
completely watertight
so constructed as to withstand hard weather condition encountered at sea
Which one of the listed requirements regarding self-righting partially enclosed lifeboats do not correspond to present regulations? Self-righting partially closed lifeboats shall have:
stability for inherently or automatically self-righting with full or partial complement
permanently attached foldable canopy over open parts
sufficient number of pumps and bailers
safety belts fitted at each indicated seating position
Having boarded the liferaft, how do you release the painter?
Cut it with the axe provided
Let go the quick release toggle
Wait for it to break as it is provided with a weak link
Cut it with the safety knife stowed on the exterior of the canopy close to the painter attachment point
How often should the lifeboat wire falls be turned and renewed?
Turned at intervals of not more than 30 months and renewed every 5 years
Renewed every three years
Turned every 2 years and renewed every 4 years
Turned every 30 months and needs only to be renewed if the wire is in poor condition
If conditions permit, which is the best way to board a liferaft which is floating close to the ship?
Use a rope ladder close to the raft to climb down and board
Jump into the water close to the raft, without a lifejacket, as this will make it easier to swim and board the liferaft
Jump onto the raft itself
Wearing a lifejacket, jump into the water close to the raft and then swim to it
What is the meaning of this symbol ?
Lifeboat
Liferaft
Davit-launched liferaft
Rescue boat
What is the meaning of this symbol ?
Release gripes
Rescue boat
Release falls
Lower rescue boat to water
When should gangway nets be rigged?
When it is deemed necessary by the Master or the Chief Officer.
Whenever the gangway is rigged.
Whenever the gangway is regarded as unsafe.
Between sunset and sunrise.
The responsibility for safety and security rests with everybody on board the vessel. General house-keeping rules should be followed. Which of the listed rules is the most important?
Do not carry lighters or matches when working outdoors.
Keep tools within easy reach during work.
Keep your working area clean and tidy.
Always use gloves when using grinding machines.
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
Two Fast Rescue Boats, one on each side of the ship
None providing the ship has lifeboats
One Fast Rescue Boat
Two, and at least one of the rescue boats shall be a Fast Rescue Boat
From the statements given in the answer options, choose the one which is most accurate in relation to the operation of water-tube boiler and fire-tube boilers.
A watertube boiler can tolerate a short period of time without any water when the burner is operating.
A firetube boiler has a much better capability to work at higher steam pressure.
Water-tube boilers are more efficient and generally contain less water than fire tube boilers. They are prone to major damage when run dry during operation.
A firetube boiler does not require a non-return valve in the feedwater line.
On the figure there are four (4) possible definitions of the term "AIR DRAUGHT" given. Which one is the correct one?
Air draught is given by C on the figure
Air draught is given by D on the figure
Air draught is given by B on the figure
Air draught is given by A on the figure
What does the Chief Officer want the 1st Engineer to do?
The Chief Officer wants to speak to the 1st Engineer
The Chief Officer wants the 1st Engineer to empty side tank No. 2
The Chief Officer wants the 1st Engineer to put the hydraulic hand pump in bilge No. 5
The Chief Officer wants the 1st Engineer to empty the starboard bilge in hold No. 5
Who is responsible for ensuring your ship completes a security assessment?
Ship Security Officer
Flag State Administration
Company Security Officer
Recognized Security Organization
What is a typical composition of LNG (Arabian Gulf)?
Methane 100%
Methane 75% - Ethane 12% - Propane 13%
Methane 80% - Ethane 15% - Propane 5%
Methane 91% - Ethane 6% - Propane 3%
On a Container vessel, with regard to fire precautions, what must be ensured prior to securing hatch pontoons?
That the duty officer's permission has been obtained to secure the pontoons
That the cargo hold fire fighting system has been checked
That under-deck cargo operations have been completed
That all cargo clusters have been removed from the hold
Generators work on the principle of electromagnetic induction. The internal e.m.f. generated in the phase windings of an a.c. generator is controlled by:
The internal volt drop and the residual magnetism.
The internal volt drop and the load current.
The diesel speed and excitation current.
The diesel speed, magnetising force and load current.
What do we mean with LEL when measure the atmosphere?
LEL is low level alarm
LEL is limit for level alarm
LEL is lowest temperature for ignitionLEL is limit for level alarm
LEL is lower explosive limit
When a large motor load suddenly is disconnected from the switchboard and the generator is AVR controlled, what will the ouutput voltage do ?
Remain approximately constant, due to governor action.
Initially rise, then reset to the set value.
Remain approximately constant, due to AVR action.
Initially fall, then reset to the set value.
What must be ensured immediately after lowering and securing the stern ramp on a RoRo vessel?
Control levers should be locked in the ‘neutral' position
Power supplies for ramp operations should be turned off
Pilot indicator lights on the bridge should be working
Control levers should be in the ‘neutral' position
Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?
It is better to run the fans continuously instead of testing the atmosphere
An increased number of air changes may be required when vehicles are being loaded or unloaded, or where flammable gases or liquids are stowed in closed ro-ro spaces
It is easier for the crew, they don't have to think about starting and stopping of fans
The manufacturer of the fans recommends continuous operation to reduce maintenance cost
What are the characteristics of Seed Cake group B (IMDG Class 4.2) cargo?
Liable to spontaneous combustion only
May self-heat slowly; may spontaneously ignite; liable to oxidise
May self-heat slowly; may spontaneously ignite; liable to oxidise; may produce carbon dioxide
Liable to oxidise only, causing subsequent reduction of oxygen in the cargo spaces
One or more pressure/vacuum-breaking devices shall be provided on the vent mains to prevent the cargo tanks from being subject to a positive and negative pressure. What is the normal pre-set point for negative pressure?
A negative pressure in excess of 500 mm water gauge.
A negative pressure in excess of 200 mm water gauge.
Depending on the test pressure of the cargo tank.
A negative pressure in excess of 700 mm water gauge.
Vegetable and animal oils undergo decomposition over time, generating obnoxious and toxic vapours and depleting the oxygen in the tank. What name is given to this process?
Polymerisation.
Putrefaction.
Monoxidation.
Disintegration.
This circuit consists of a voltage source V, a change-over switch S, a resistor R and an inductor L. The voltage/time figures 1 to 4 show possible changes in the voltage V(L) in case the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?
Figure 4
Figure 2
Figure 3
Figure 1
From the options, select the best description of the function of a buttress fitting on a container vessel.
To avoid excess load placed on the tank top.
To ensure an even distribution of weight throughout the stack.
To transfer forces from the container stow to the ships structure.
To maintain a uniform level stow across the tier of containers.
This circuit is widely used for rectification of AC into DC. Which of the diagrams is correct for the out- put voltage when the input voltage is sine-shaped as shown?
Figure 3
Figure 1
Figure 2
Figure 4
When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure. Why is this?
To avoid over-capacity in the IG generator.
To avoid locking the cargo pump impeller.
To minimise blowback.
To comply with MARPOL Annex VI.
What percentage of the ship’s stores are required to be inspected at Security Level 3?
25-50% of the ship's stores are required to be inspected at Security Level 3.
5-20% of the ship's stores are required to be inspected at Security Level 3.
50-80% of the ship's stores are required to be inspected at Security Level 3.
100% of the ship’s stores are required to be inspected at Security Level 3.
What action should be taken by the watchkeeping engineer if the running machinery is operating at slightly high temperature but everything else appears ok?
It should be stopped and serviced immediately
It should be left running until the fault develops further.
It should be shutdown temporarily, allowed to cool down and then be restarted.
It should be brought to the attention of the Chief Engineer so that remedial action can be decided upon.
Which vitamin is to be found only in foods from the animal kingdom?
Vitamin C
Vitamin E
Vitamin A
Vitamin B
What is important when checking cargo lashings on a General Cargo Vessel?
The number and extent of lashings
The tightness of all lashings
The strength of lashing materials
The type of lashing materials
Searches are often triggered by:
Lost baggage.
News stories of stowaways.
The receipt of a shipment of damaged stores.
An increase in security level by the Flag State.
A reefer vessel is to load a part cargo of frozen beef hocks (large joints of beef, usually quarters, not packed in cartons). In deciding which would be the most appropriate space on a conventional reefer vessel, which of the given options would be the preferred choice?
Any space will be acceptable as this is a hard frozen cargo and relatively easy to handle and carry.
4A deck as this is the largest square space on the vessel and will allow good access and air flow for the cargo.
A cargo space low in the vessel as this cargo has a relatively high stowage factor.
1C deck as this is the narrowest space on the vessel and will best constrain the cargo from any possible movement during the voyage.
At what temperature would you expect to carry a fully refrigerated cargo of ammonia?
- 43° C
- 23° C
- 33° C
- 53° C
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?
Water in a cylinder.
Injection valve opening pressure is too low.
Governor linkage broken.
Fouling of turbocharger intake filters.
When washing a cargo hold of a bulk carrier prior to loading a cargo of steel products, why is the space washed down with salt water and then fresh water?
To maintain safe access by hold ladders
To assisting in drying the hold space
To prevent damage to paint coatings
To remove all traces of salt that would possibly contaminate the cargo if water drops onto the cargo
How many lifejackets are required in a passenger cabin?
Same number as beds in the cabin
At least 2
Twice the number of beds in the cabin
Non, they will be handed out at the muster station
What name is given to all the knives, forks, spoons, etc?
Sutlery.
Crockery.
Cutlery.
Butlery.
Which of the following cargoes would normally require surrounding empty cargo tanks, void spaces and ballast tanks to be inerted prior to loading and maintained in that condition while the cargo was on board?
Propylene Glycol.
Propionic Anhydride.
Propylbenzene.
Propylene Oxide.
On a RoRo vessel, what is a low-bed Ro-Ro unit that is towed onto a ship called?
Mafi Trailer
Trailer
Flatrack
Flatbed
A walk-in refrigerator has been out of use for several weeks and needs cleaning. It has been closed for a long time because there is a suspicion that there may be a small gas leak from the cooling system. What should you do?
Hold your breath as you enter, locate the gas leak and stick a bit of tape over it.
Seek advice from ther ship's safety officer who will perform a risk assessment and advise on any precautions necessary.
Nothing special - it's only a refrigerator and everything will be OK.
Get someone to come inside the refrigerator with you.
How should structural steel products be supported in a cargo hold?
Fore and aft dunnage spaced 3m apart provided in a vertically straight line at every tier
Athwartships dunnage spaced 1.5m apart provided in a vertically straight line at every tier
Athwartships dunnage spaced 3m apart provided in a vertically straight line at every tier
Fore and aft dunnage spaced 1.5m apart provided in a vertically straight line at every tier
How is positive stability maintained when loading heavy lift cargoes?
By completely filling the ship’s double bottom tanks and monitoring the loading operation
By monitoring the vessel’s stability during the loading operation
By completely filling those double bottom tanks associated with the cargo hold concerned
By listing the vessel to the opposite side to which the load is being lifted
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
A refractory material is one that will retain its solid state even at very high temperatures, and furnace temperatures as high as 1650 °C have been recorded in marine boilers. What is the primary purpose of using a refractory?
They act as a heat sink, and ensure more even distribution of heat throughout the furnace.
All of the mentioned alternatives.
They are used to protect exposed parts of drum, which otherwise could become overheated.
To protect the furnace casing from overheating, burning and possible escape of gases into boiler room.
When testing boiler water, should the sample be:
As hot as possible.
At lowest possible temperature.
At room temperature.
It makes no difference.
Which of the function shown is this operational amplifier circuit performing?
Differentiator
Inverting amplifier
Integrator
Non-inverting amplifier
Which of the given options characterizes a 2-stroke diesel engine ?
The piston always has a short skirt.
A 2 stroke engine always has 2 or more turbochargers.
A 2 stroke engine completes a full cycle every revolution.
A 2 stroke engine has an air inlet valve in the cylinder cover.
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
When selecting switchgear to work with High Voltage it is important to use an appropriate arcing medium. What is meant by arcing medium?
The way in which the contacts separate as the switchgear operates.
Equipment which communicates information about the arcing.
A material which assists a welding process.
The gas or vapour which will minimise creation of an electric arc as contacts open.
On a container vessel what action should be taken if a tank container of liquid ammonia is engulfed in fire
Dry chemical must not be used to extinguish the fire
Restrict ventilation
Allow ventilation
Water must not be used to cool the container
When there is doubt about the freshness of the atmosphere in ro-ro cargo spaces, what action should be taken?
Supply filter masks to all crew working on ro-ro deck
Ro-ro decks are always ventilated in advance of an operation
Arrangements should be made for testing of the atmosphere to ensure maintenance of 21% oxygen and a carbon monoxide content below 50 ppm in the atmosphere of the space
Open both bow- and stern doors
You have recently discharged a cargo of Methylene Chloride from tank 4 port. How will the atmosphere in the tank normally be tested for remaining (very low level) traces of vapour to ensure safe conditions before a tank entry certificate is issued?
By reading off a standard explosimeter (combustible gas indicator).
You will be able to smell even a very low level of this product.
It is not possible (or important) to test for trace levels of this product.
By sampling through a gas detector tube.
The Code of Safe Practice for Cargo Stowage and Securing was prepared to give guidance in which of the following cases.
Guidance for Port State Control Officers when carrying out ship inspections.
Guidance on securing of cargoes in hazardous ocean areas.
Preparation and content of the Cargo Securing Manual.
Ship specific guidance relating to securing of deck cargoes.
What is the most important consideration when planning the lashing system for a particular sea route on a General Cargo Vessel?
Encountering heavy weather
Transverse accelerations
The breaking strength of lashing materials
The size and weight of general cargo items to be loaded
Before departing the berth to ensure the stability of a RoRo vessel which if the following should be completed
Close all Ramps and hatch covers
Open all ramps and hatch covers
turn off all the deck hydraulics
A Ship Security Assessment is integral to the creation of your ship’s security plan.
FALSE
TRUE
.
How should mild steel slabs be loaded in a bulk carrier?
Interlocked across the entire cargo hold with the longitudinal axes athwartships
Interlocked up to the hopper tank plating with the longitudinal axes athwartships
Interlocked across the entire cargo hold with the longitudinal axes fore and aft
Interlocked up to the hopper tank plating with the longitudinal axes fore and aft
Why is it important to have an efficient fire patrol system on board passenger ships?
To show passengers in public areas we are on duty 24 hrs
To control that passengers adhere to smoking regulations on board
To ensure that an outbreak of fire may be prompltly detected
To verify that the automatic fire-detection system is working properly
What is the correct name of the part highlighted in the sketch?
Exhaust valve
Air inlet valve
Cylinder relief valve
Cylinder head
There has been an accident at the manifold and one of the crew has swallowed a quantity of unidentified liquid chemical. What is the correct medical term for this?
Infusion.
Absorption.
Inhalation.
Ingestion.
Which of the following is false when a casualty is bleeding?
Encourage patient to lie quite and re-assure
Treat for the shock
Control bleeding
Cover the wound with a cloth
If a vessel’s Tonnes Per Centimeter immersion (TPC) is 28.80 in saltwater, what would be her TPC is water of density 1.015 T/m3?
29.963
28.52
28.80
29.0837
Which of the following statements is correct?
Hot rolled steel coils must not be loaded in a rusty condition
Hot rolled steel coils may be loaded in rain
Hot rolled steel coils must never be loaded in rain
Hot rolled steel coils are always shipped in stainless steel envelopes
What is typical for a continuous control system
The output signal is equal to the input signal
The control valve will always be changing positionv
It is possible to predict the control mathematicallyIt is possible to predict the control mathematically
It is not possible to have a stable process
Most perishable cargoes are presented for shipment pre-cooled to the correct carriage temperature. If the cargo is not pre-cooled or has warmed up due to the cold chain being broken it can result in increased metabolic rates. Which of the given options would be the most difficult to deal with if such a situation occurred during a sea passage?
The water produced by the cargo.
The heat produced by the cargo.
The carbon dioxide produced by the cargo.
The trace gases produced by the cargo.
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.
A vessel's main propulsion system consists of a pair of medium speed diesel engines driving a single controllable pitch propeller through clutches and coupled through a reduction gearbox. What is the preferred sequence to follow when going from two engine to single engine operation? Assume engine A is to be stopped and engine B is to continue running
Stop engine A and check that clutch automatically disengages and governors for both engines operate correctly for testing purposes.
Pitch to zero thrust, disengage clutch of engine A, increase speed of engine B and propeller pitch as required. Stop engine A after a suitable cooling period.
Disengage clutch of engine A. Stop engine A after a suitable cooling period.
Pitch to zero thrust, reduce speed to idling speed, disengage clutch of engine A, increase speed of engine B and propeller pitch as required. Stop engine A after suitable cooling period.
A cargo of frozen chicken is being presented for loading into a conventional reefer vessel. Which of the options given is the most appropriate packaging method that should be used for such a cargo?
It should be wrapped in plastic and stowed loose.
It should be packed in cardboard cartons.
It should be packed in wooden cases.
It should be packed in plastic sacks.
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.