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Онлайн-тестування: Test online CES 5.1 for Engine department, Support level
Виберіть режим роботи з тестом:
Навчання
Онлайн-тест
Опис
Тест складається із випадкових питань з обраної теми.
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In radio-traffic with a coast-station, a “personal call” means that one wishes:
to have a telephone conversation with a person whose name is known
to request a telephone alert call
Don't know
to have a telephone conversation for account of a requested shore subscriber
How can a new officer, just boarding a ship, ensure that he knows the location and operation of all navigational and safety equipment and take account of the operating limitations of such equipment?
By using the equipment on regular watchkeeping duties
By following the standard company Induction procedures for a bridge watchkeeping officer
By asking other officers and practicing with the use of the equipment
The certificate of competency will ensure the officer has suitable competence in operating the bridge equipment
How can you minimize the squat effect?
Decrease the speed as much as practicable
Maintain your course and speed
Increase speed if the ship is not already on full ahead
Do a zig-zag manoeuvre to reduce speed
The ship is navigating in dense fog where the visibility is less than one mile. The Arpa radar is set on a range 12 miles on a course of 314 degrees and own ship has a vector as shown. What is the vector mode selected on the Arpa?
Relative vectors, ground stabilised
True vectors
Relative vectors.
Relative vectors, sea stabilised
What transmitting equipment as a rule is not allowed for us in territorial waters:
Inmarsat-C transmitters
Inmarsat-A transmitters
Don't know
MF-transmitters
*Which of the following duties shall be included in the "muster list" as being assigned to members of the crew ?
operation of the vessel-s propulsion system
preparation of immersion suits for the ship-s passengers
preparation and launching of the survival craft
preparation of manoeuvres intended to ease launching of the survival craft
How should the spare oxygen and acetylene gas welding bottles be stored onboard the ship?
In a refrigerated room.
In two separate rooms outside the engine room space.
In the workshop in the engine room as close as possible to welding equipment.
In the steering flat.
The heat required to raise the temperature of 1 kg of any particular substance 1°C is called:
Heat transfer coefficient
Latent heat
Specific heat
Adiabatic heat
How is the cargo tank pressure controlled when loading an LNG carrier?
By varying the amount of boil-off to the boiler.
By using a vapour return to shore system and controlling the loading rate.
By opening the tank vents to atmosphere.
By adjusting the relief valve settings to the required tank pressure.
Under U.S. Occupational Safety and Health Administration (OSHA) regulations when is a Vertical Tandem Lift possible?
When two intermodal containers one on top of the other are connected by semi-automatic twistlocks
When three intermodal containers in a stack are connected by fully-automatic twistlocks
When two intermodal containers one on top of the other are connected by fully-automatic twistlocks
When three intermodal containers in a stack are connected by semi-automatic twistlocks
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.
When checking the zero point on a combustible gas indicator that is to be used to detect hydrocarbon gases in an empty cargo tank which method should be used from the options given?
Pass oxygen gas through the sample chamber
Pass fresh air through the sample chamber.
Pass carbon monoxide gas through the sample chamber.
Pass methane gas through the sample chamber.
A transformer with 10:1 turns ratio and rated 50 kVA, 2400/240 Volts, 60 Hz, is used to step down the voltage to a distribution system. The low tension voltage is to be kept constant at 240 Volts. What load impedance connected to the low-tension side will cause the transformer to be fully loaded?
1.15 Ohms
230 Ohms
115 Ohms
2.3 Ohms
What is the main purpose of the reliquefaction plant fitted to many liquefied gas carriers?
It is used to change the cargo vapour back to liquid keep the cargo cooled.
It is used to discharge the cargo when the cargo pumps don't work.
It is used to cool down the cargo tanks before loading.
It is used to change the liquid cargo to vapour to heat the cargo if it is too cold.
In the event of a severe scavenge fire, which of the following is most likely to be seriously damaged?
Piston rod and stuffing box.
Exhaust valve.
Crosshead bearing.
Piston crown.
It is possible to successfully mix certain types of refrigerated cargo in the same space if they are compatible. Sometimes apparently dissimilar cargoes can be successfully mixed. Which one of the combinations given in the options could be successfully carried as a mixed cargo in the same cargo space?
Oranges and butter.
Oranges and rock lobster.
Oranges and bacon.
Oranges and apples.
Many modern large slow speed diesel engines used for main propulsion operate with a so called constant pressure turbocharging system. What is meant by constant pressure when used to describe such a turbocharging system?
Pressure variations in the scavenge air supply are avoided by supplementing the air supply with air from the auxiliary blowers so keeping a constant pressure across the load and speed range.
Pressure variations at the turbocharger inlet are damped out due to the large volume of the exhaust receiver and the short lengths of pipe from individual cylinders.
The exhaust pipes from groups of three cylinders are joined together before entry into the turbocharger so that the exhaust pulses from each cylinder cancel each other giving a constant inlet pressure.
The exhaust gas pressure is maintained constant by using a bypass waste gate to dump excess pressure at high engine loads.
There has been an accident at the manifold and one of the crew has swallowed a quantity of unidentified chemical. What is the correct medical term for this?
Inhalation.
Infusion.
Absorption.
Ingestion.
Who is responsible for maintaining the vessel's structural strenght?
The Shipyard
The Flag State Administration
The Master
The Shipping Company and the Classification Society
Is it allowed to have animals on the car deck during a voyage?
Yes, if they are safely placed in a suitable vehicle
Only if the weather conditions permit
It is up to the captain to decide
No
For what purposes is nitrogen used in cargo tanks on a chemical tanker?
Cleanliness (provision of a clean atmosphere in the tank) and quantity (minimising any loss of cargo through evaporation).
Maintenance (nitrogen in the tank restricts moisture build-up and stops corrosion on the tank bulkheads).
Quality control (the nitrogen blanket ensures a uniform temperature throughout the product by stopping loss of heat at the surface).
Safety (atmosphere control) and purity (maintenance of quality of product by stopping contact with air).
What type of Bill of Lading covers "door to door" shipment?
A Destination Bill of Lading.
A Through Bill of Lading.
A Multi-Phase Bill of Lading.
An Ocean Bill of Lading.
How could you calculate the Stowage Factor of a cargo commodity after loading in a General Cargo vessel?
By dividing the volume of the space used by the tonnage of the commodity loaded
By dividing the gross tonnage of the space by the area of the commodity
By dividing the area of the space by the tonnage of the commodity
By dividing the gross tonnage of the space by the volume of the commodity
What causes shock loads in a container lashing system?
Ship torsion
Loose cargo lashings
Resonant rolling
Ship vibrations
Where is the normal position of the "Pivot Point" of a vessel when going astern?
Amidships
1/3 of the vessel's length from the bow
Between 1/4 of the ship's length from the stern and the rudder post
Between amidships and 1/4 of the vessel's length from the bow
According to most industry standards, what percentage of oxygen by volume is required for entry into an enclosed space without a breathing apparatus?
11%
17%
21%
15%
The figure shows a silicon controlled rectifier with a RC circuit connected in parallel. RC circuit is often used in such connection. For which purpose?
Protect the SCR against damage caused by high voltage spikes
Obtain current resonance
Measuring the current through the SCR
Delay the ignition of the SCR
On a General Cargo Vessel, which of the following statements are correct?
Under the Hague-Visby rules there is an obligation to make a vessel seaworthy
Under the Hague rules there is an obligation to make a vessel seaworthy
Under the Hague and Hague-Visby rules a ship-owner must exercise due diligence to make a vessel seaworthy
Under the Hague and Hague-Visby rules a vessel must be seaworthy at the commencement of a voyage
This graphical symbol is a logic gate. Which gate?
OR
AND
NAND
NOR
What is a low location lighting system?
A system displaying the escape route from all cabins by light points in the ceiling, powered by battery
An illumination system for all corridors in cabin areas
A light system powered by battery or fluorescent signs mounted at deck level indicating the way to the nearest exit
An emergency illumination system that illuminates all deck areas to a minimum
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
What measures should be taken in order to avoid flammable gases forming on top of coal cargoes on a Bulk Carrier?
Ventilation to be continuous?
Ventilation to be carried out as indicated in the IMO solid Bulk Cargo Code
Cargo to be ventilated by opening hatch covers at sea?
Cargo not to be ventilated?
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.
What is the correct name of the tool in the sketch?
Padlock
Monkey wrench
Chisel
Pliers
What cooling medium is normally used to cool the condenser of a fresh water generator?
Brine
Seawater
Distillate (Freshwater)
Air
A spare cylinder head for the generator needs to be lifted from its storage cradle to the generator flat. Because of its location the engine room crane cannot be positioned directly above it. What method should be used to bring the cylinder head into position?
Attach the crane hook to the lifting gear for the cylinder head and drag it across the deck until it is directly under the crane.
Use crow bars to lever the cylinder cover across the deck until it is in position below the crane.
Use a block and tackle to drag the head across to a position beneath the crane.
Rig chain blocks to lift the cylinder head from its cradle and then transfer it gradually over to the crane hook by working the chain blocks.
Why are the L.P.G. compressors of "Oil Free" type design?
To prevent contamination of the cargo.
To prevent low oil pressure during start up.
To prevent carbonising of the valves.
To prevent contamination of the lub oil.
Continuity testing of a delta connected three phase induction motor yields the following results; U-V =3 ohms, V-W =3 ohms, W-U =6 ohms.Which of the following is the likely condition?
Short circuit winding between W and U
Open circuit winding between W and U
Short circuit between V and Earth
Partial fault between W and U
In the context of oil tanker operations, what is "clingage"?
Oil residues remaining in the bottom of a cargo tank after tank-cleaning
The resistance to flow in a pipeline during the discharge of an oil cargo
Electrostatically charged bubbles of air and moisture suspended in an oil cargo after loading
Residues remaining on the inside of a pipeline, or on the internal structure of a cargo tank after an oil cargo has been discharged
Which of the following could cause a “flareback”
opening air registers too quickly
trying to ignite burner from hot brickwork
oil pressure too high
oil temperature too high
In the human body, breathing is controlled by
The bronchia
The respiratory centre in the brain
The lungs
Movement of heart
To achieve a good stow with palletised refrigerated cargo it is preferable to have long uninterrupted faces for the stow. Any pillars, access ladders or other obstructions in the cargo space can make this difficult. From the options given, select the most appropriate way of dealing with an access ladder which is obstructing the pallets to achieve a satisfactory stow.
Stow the pallets as tightly as possible around the access ladder and fill any gaps with air (dunnage) bags.
Stow the pallets as tightly as possible around the access ladder and fill any gaps with loose cartons.
Remove the access ladder and place it on top of the stowed pallets.
Stow the pallets as tightly as possible around the access ladder and then support the pallets with plywood and timber bracing.
How would you arrive at the ‘Stowage Factor’ of a carogo commodity?
By dividing the volume of the space by the tonnage of the commodity
By dividing the area of the space by the tonnage of the commodity
By dividing the gross tonnage of the space by the area of the commodity
By dividing the gross tonnage of the space by the volume of the commodity
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.
Which of the following cuts of beef is taken from the shoulder?
Rump
Brisket
Chuck
Silverside
An International oil pollution prevention certificate is required for:
All oil tankers
All ships of 150 gross tons or more
Oil tankers 150 gross tons or more
Oil tankers on International voyages
On a General Cargo Vessel, under what regulations would steel bands remaining in the cargo holds have to be discharged?
MARPOL 73/78 (Annex IV - Regulations for the prevention of pollution by sewage from ships)
MARPOL 73/78 (Annex V ? Regulations for the prevention of pollution by garbage from ships)
Flag state regulations
No specific regulations apply
What type of damage does a cargo of steel coils sustain when loaded on a General Cargo ship?
Chemical reactions between the steel banding and outer envelope
Bending
Tearing
Crushing and distortion
What is the main reson for keeping engine lubricating oil viscosity within recommended limits?
To neutralise any acids that may form.
It is not important
To ensure the strength of the oil film is sufficient to keep lubricated surfaces apart.
To reduce system pressure losses.
What hazards are associated with the carriage of a bulk carriage of coal slurry?
This cargo is a low fire risk under normal conditions
This cargo may be liable to sweat and create excessive moisture
This cargo is liable to self heat and spontaneous combustion
This cargo may have a dangerous angle of repose
Where would you look to find details of the crude oil washing system, its equipment and operating procedures? ,
The Operations and Equipment Manual (COW Manual).
MARPOL 73/78.
The Oil Record Book.
The ODME Manual.
What extra precautions should be taken by the officers and crew if some of the passengers are disabled, i.e. using wheelchair, cane, blind etc.?
Passenger with some form for disability must travel with accompany, and live in same cabin or next door.
Locate them in large cabins to ease their stay.
They must be placed in cabins on the same level as the muster station.
All passengers that will require extra assistance, also in case of an emergency situation/ evacuation, must be registered in order to allocate crew to assist them if needed.
Indicate the correct name for the part marked on the sketch:
Crankshaft
Piston rod
Connecting rod
Push rod
The majority of marine diesel engines operate with either a pulse or a constant pressure turbocharging system. What is the main difference between these two systems?
Pulse systems have all of the cylinder exhausts connected to a common large exhaust gas manifold
Pulse systems always have a turbocharger for each group of three cylinders.
Constant pressure systems have all engine cylinder exhausts connected to a common large exhaust gas manifold.
Constant pressure systems only ever have a single turbocharger irrespective of the number of cylinders on the engine.
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
What is the boiling temperature of methane at atmospheric pressure?
-43 C.
-162 C.
-152 C.
-172 C.
"Protective discrimination" means the progressive grading of sizes or tripping times of:
Generators and motors.
Line fuses and overcurrent relays
Magnetic and thermal current transformers.
440 V and 220 V transformers.
You are paralleling two alternators and the pointer of the synchronoscope slowly stops rotating and remains stopped in one position before the circuit breaker is closed. This would indicate:
The voltage of the incoming alternator is the same as that of the main switchboard
The incoming alternator is in phase with the switchboard, but the frequency is not the same
The synchronoscope is not functioning properly and should be checked
The frequency of the incoming alternator is the same as that of the main switchboard
The reporting of incidents involving harmful substances and / or marine pollutants is regulated under which international guidelines?
Protocol I of MARPOL 73/78.
The UN Convention on the Reporting of Accidents and Incidents which Present a Hazard to the Marine Environment 2004.
Appendix B of the Supplement to the IMDG Code.
Annex II to SOLAS 1974.
After loading certain oil cargoes, known as 'static accumulator' cargoes, it is common to wait for the cargo to stop moving within the tank and therefore reach the point at which it will cease generating any further static electricity, before taking any samples or ullages. Which of the following is the typical length of time allowed for this process
120 minutes
30 minutes
75 minutes
2 minutes
What kind of safety equipment should be used when operating a grinding wheel?
Goggles and shield.
Shield.
Welding mask.
Goggles.
This circuit consists of two capacitors, C(1) = 6 µF and C(2) = 12 µF, in series. Calculate the equivalent C(S) of the two capacitors.
C(S) = 2 µF
C(S) =18 µF
C(S) =1,5 µF
C(S) = 4 µF
How can you arrange for safe movement of passengers on ro-ro decks?
Passengers should stay in their cars until loading is completed. They should keep to walkways when leaving the car.
Passengers are responsible for their own safety while moving about ro-ro decks.
It is easy, only drivers are allowed to stay in the car during loading and unloading.
Passengers should be warned of vehicle movements when entering or crossing car or vehicle decks. They should preferably keep to walkways while moving about the ship.
How many lifejackets are required in a passenger cabin?
Twice the number of beds in the cabin
At least 2
None, they will be handed out at the muster station
Same number as beds in the cabin
On a Container vessel, what is the definition of Readily Combustible Solids, under the IMDG Code?
A substance that will heat up and ignite due to the ignition of another substance
Fibres, powdered, granular, or pasty substances that are capable of self-heating
Fibres, powdered, granular, or pasty substances which are dangerous if easily ignited by brief contact with an ignition source and if the flame spreads rapidly
Any solid that is capable of self-ignition
According to the Oil Pollution Act of 1990 (OPA-90), oil carrying vessels trading in U.S. waters are required to carry oil spill clean up equipment for the containment and removal of on-deck spills. For a vessel of over 400 feet (121.9 metres) in length, what volume of oil must they be able to handle?
15 barrels (2.38 cubic metres).
1barrel (0.16 cubic metre).
5 barrels (0.79 cubic metre).
12 barrels (1.91 cubic metres).
Which statement about the garbage record book is true?
Each entry is to be written in the language of the ship's flag state
It is required by all ships on International voyage
Each entry is to be signed by the Master
It is used to record all operational and accidental garbage discharges
Which vitamin is found only in meat and fish?
Відповісти
Anyone who without valid reason places, removes, changes or conceals nationality marks or registration marks of a registered ship shall be liable to???
Imprisonment for a term not exceeding 6 months.
Fines or imprisonment for a term not exceeding 12 months.
Fines or imprisonment for a term not exceeding 6 months.
Fines.
What type of cargo shall always be secured?
The driver must ask the crew to secure the vehicle and its cargo
Tank lorries should always be secured.
Freight vehicles carrying dangerous goods and adjacent vehicles should always be secured.
No cargo or vehicles have to be secured if the weather conditions are favourable.
Which of the following statements is incorrect with regard to loading bagged fishmeal?
Cargo holds should be free of cargo residues
Cargo holds should be free of infestation
Dunnage is not required
Cargo holds do not require ventilation
How can you best demonstrate in an audit that you follow company cargo handling procedures?
By providing a summary of out-turn figures for the auditor.
By requesting that an audit takes place during cargo operations.
By being able to provide comprehensive and verifiable documentary records of cargo operations.
By providing a summary of incident and lost time figures for the auditor that reflects a successful and trouble-free system on board.
What purpose has the discharge booster pump on a gas tanker?
The main purpose of booster pumps is to avoid overflow during loading.
The main purpose of booster pumps is to increase the manifold pressure.
The main purpose of booster pumps is to maintain the manifold temperature.
The main purpose of booster pumps is increase the tank pressure.
What does the Captain think about the Chief Mate's question?
He wants the OS to train as helmsman today, because they are sailing in open waters and there is not much traffic in the area
He does not want to train the OS as helmsman because there is too much traffic in the area
He does not want the OS to go on watchkeeping duties next week because they are sailing in open waters
He thinks, it is not a bad idea to sail in open waters because the traffic in sparse
How do we control the cargo tank pressure whilst we are at sea?
Whilst at sea we control the cargo tank pressure by use of inert gas system.
Whilst at sea we control the cargo tank pressure with the cargo cooling plant.
Whilst at sea we control the cargo tank pressure by use of cargo pumps and cargo heater.
Whilst at sea there is no way to control the cargo tank pressure.
Certain vessels are required to maintain oil record books according to the IMO. Is it compulsory that an oil record book is maintained onboard liquefied gas carriers?
Yes, all ships to which MARPOL 73/78 applies must have oil record book parts 1 and 2 onboard.
Yes, all ships to which MARPOL 73/78 applies must have an oil record book part 1 onboard
No, since MARPOL 73/78 only applies to oil tankers then it is not necessary for a liquefied gas carrier to have any oil record book onboard.
Yes, all ships to which MARPOL 73/78 applies must have an oil record book part 2 onboard.
LNG cargoes are carried at temperatures well below ambient conditions. Which of the statements given in the options best describes how the low temperatures which are necessary are maintained during a normal loaded voyage?
The cargo tanks are fully insulated.
Most LNG carriers are fitted with reliquefaction plants.
The cargo tank pressures are maintained below atmospheric conditions.
The cargo tanks on LNG carriers are made of very thick metal.
The best way to ensure you get the equipment you need is to:
Buy what everyone else is buying.
Determine your needs and do some research.
Buy the most expensive equipment on the market.
Buy the newest models.
When disconnecting the cargo hose after discharging, some oil is drained into the drip-tray under the manifold which already contains a small amount of dirty water. What is the correct way to dispose of this oil?
Drain it to a cargo tank.
Mix in an appropriate quanoity of dispersant chemicals and drain it overboard when in open water.
Drain it overboard when the vessel is 50 nautical miles off the coast.
Transfer it to the sloptank and later discharge it to a reception facility.
What measures regarding ship stability should be taken in order to make passenger ships able to withstand critical damage?
Damaged stability to be increased by weight redistribution.
Avoid overloading the ship
Damaged stability to be increased by use of water ballast
Maintain sufficient intact stability
For what purpose is inert gas utilised on a gas tanker?
Inert gas is utilised on board gas carriers to neutralise atmosphere in hold/ interbarrier spaces
Inert gas is utilised on board gas carriers to held overpressure in cargo tanks when discharging
Inert gas is utilised on board gas carriers to neutralise atmosphere in cargo tanks, pipes and hold/ interbarrier spaces
Inert gas is utilised on board gas carriers to gas free cargo tanks
What is the main reason that passenger baggage creates problems for crowd control?
If passengers are already in muster stations, you will have to allow them to return to cabins to retrieve baggage.
Muster stations are crowded, and passenger baggage takes up space.
There isn't room in the life rafts, and crewmembers will have to tell passengers to leave baggage behind.
Passenger baggage clutters escape routes, and embarkation stations, and slows down an evacuation.
A plate type heat exchanger in a central cooling system has seawater leaking around the edges of some of the titanium plates. After inspection and reassembly following the manufacturer's instructions the problem still exists. What action, from the options given, should be taken to rectify the problem?
Fit new gaskets to the each of the plates.
Keep tightening the plate stack until the leakage stops.
Reduce the pressure of the sea water.
Scrap the plates and replace with a new plate stack.
A 3-phase cage rotor induction motor requires protection by a time delay overload trip. What is the reason for this?
It will tolerate fault conditions during start up
Fuses act too quickly
Fuses act too slowly
It will allow for inrush current or motor specific faults
On a RoRo vessel, when checking cargo lashings during the voyage what must duty crew members pay special attention to?
The number of lashings per cargo unit
The tightness of lashings per cargo unit
The type of cargo lashing materials
On a Container vessel, when can twistlocks be used to lift containers?
When they are semi-automatic
When they are fully automatic
Only if they have been approved and certified for this purpose
When they are of the mid-lock design
What danger is associated with loaded container tractors passing over large fittings on the loading ramp or on the vessel’s decks?
Damage to the container cargo
The container jumping the trailer
Damage to the ship’s fittings
Damage to the trailer tyres
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.
What would be considered as an acceptable range for the p-alkalinity in a low pressure auxiliary boiler?
0- 100 ppm CaCO3.
300 - 600 ppm CaCO3.
600 - 1000 ppm CaCO3.
100 - 300 ppm CaCO3.
How much water per person is provided in a liferaft not equipped with a desalting apparatus?
2 litre
1.5 litre
5 litre
3 litre
Даний онлайн-тест складається з 90 випадкових питань із тестів CES 5.1 з обраної вами тематики.