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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
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Тест состоит из случайных вопросов по выбранной теме.
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In general what is the proportion of concentrate to water to produce foam?
Between 50 and 100%
over 100%
This operation is done automatically and in relation to the foam
Between 3% and 6%
What is the general requirement for the closing mechanisms of the inlets and outlets of all the ventilation systems?
Only a manually closing mechanism is allowed
Closing must be remotely controlled from the central fire control panel
Closing must be possible from outside the spaces being ventilated
An automatic closure for each section protected by a fire detection and alarm system must be provided
The “clarifier” has only effect during:
Don't know
Receiving in mode J3E
Receiving in mode H3E
Transmitting in mode H3E
The proper operation of an Inmost C-terminal can be tested by:
Doing a “link test”
Sending a message to MF DSC
Requesting a “self test”
Doing a “recommissioning test”
Who is responsible that regulatory working hours are not exceeded?
The individual person.
The safety officer.
The master and department heads.
The bosun and the second engineer.
One of the following arguments is not valid regarding discharge of oil/oily mix into sea:
The lower speed the higher ratio of oil/oily water can be discharged?
When discharging oil/oily water, the vessel-s position must be minimum 50 nm off any shores?
Rate of discharge regarding oily water is not to exceed 30 litters/nautical mile?
Tankers are restricted to have a monitor/control system and a slop tank?
For cargo calculations there are two corrections to be made. Two tables are used for this purpose.
Cargo calibration tables.
Shear and bending tables.
Pressure and vacuum tables.
List and trim correction tables.
You are towing a vessel. The total length of the tow is 190 meters. What daylight signals are to be used?
No need of any signal.
Two black balls.
Diamond shape.
One black ball.
When is a vessel deemed to be an overtaking vessel?
When coming up with another vessel from any direction abaft her beam
When coming up with another vessel from a direction more than 10 degrees abaft her beam
When coming up with another vessel from a direction more than 45 degrees abaft her beam
When coming up with another vessel from a direction more than 22.5 degrees abaft her beam
The ship is in a sharp turn and the log shows sideways motion to port both forward and aft. Where is the "pivot point" located?
Outside the ship itself
At the center of gravity
At 1/6 of the ship-s length aft of the bow, but in the center line
Aft of amidships
Your vessel is moving in Panama Canal waters. When must the master or his qualified representative be on the bridge?
When entering or leaving locks only
When at anchor or alongside a pier
When going through the Gaillard cut only
At all times
Your vessel is moving in Panama Canal waters. When must a crew man, capable of and ready to operate the anchors, be on the forecastle?
When passing through the Gatun Lake
When passing through Gaillard cut
When anchoring in Gatun Lake only
When a Panama Canal pilot is onboard
If the OOW must leave the voyage plan, he should?
Inform the master
Check the new plan
No special action necessary
Make a note in the log book
A lifejacket is so constructed that a person can correctly don it within a period of:
10 sec
2 min
1min
30 sec
*How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length.
75% of the complement on each side of the ship
100% of the complement if it can be readily launched on either side of the ship. If it cannot be readily launched on either side, 100% must be provided on each side
50% of the complement on each side of the ship
25% of the complement on each side of the ship
*How many lifebuoys can you expect to find on board a cargo ship of 190 metres in length (including those of the quick-release system) ?
at least 8 distributed on both sides of the ship
at least 12 distributed on both sides of the ship
at least 14 distributed on both sides of the ship
at least 10 distributed on both sides of the ship
Which one among the following information shall be marked on the container of an inflatable liferaft:
the number of persons the liferaft is permitted to carry
the name of the ship to which the liferaft belongs
the number of the liferaft
the port of registry of the ship to which the liferaft belongs
Which of the following fittings shall be provided to all lifeboats:
handholds or a buoyant lifeline becketed around the outside, except in the vicinity of the rudder and propeller
a remotely operated steering arrangement
permanent boarding arrangements on both sides to enable persons in the water to board the lifeboat
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 liferaft ?
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
three tin-openers and a pair of scissors
one boat-hook
one searchlight which can work continuously for not less than 3 hours
Which item among those below is included in the normal equipment of every lifeboat ?
an EPIRB
a rustproof graduated drinking vessel
one life-jacket for each person
sea-charts and navigating equipment
What is a hydrostatic release unit?
An important part connected to the sea-anchor.
A unit for inflating the liferaft.
A unit which automatically release all securing when abandon the vessel.
A unit which automatically releases the liferaft/lifeboat at a depth of approx 4 metres.
How often should an inflatable liferaft be serviced at an approved service station?
Every 5 years
Every 24 months
Every 12 months
Every 6 months
Give the meaning of the following symbol
Rocket parachute flares
Survival craft portable radio
EPIRB
Radar transponder
What is the meaning of this symbol ?
Embarkation ladder
Evacuation slide
Davit-launched liferaft
Lower lifeboat to water
Why do blunt knives cause accidents?
Because they will need to be held at a more shallow angle when cutting.
Because the blunt edge will contain grease particles.
Because they require more pressure to be used and are more likely to slip.
Because the handles are more likely to be loose.
What is the function of a sacrificial exchangeable wear plate?
It protects hull plating around the bulbous bow
It protects the hull plating around cell guides
It protects twistlocks against wear down beyond a certain limit
It protects hull plating around the stern frame
What method should be used to discharge a semi-pressurised gas carrier if there is a break down on the cargo discharge pump?
By using the cargo compressor to pump the cargo vapour ashore as it boils off.
By using a portable submersible pump to empty the affected tank
By using the inert gas system to pressurise the cargo tank and force the liquid cargo ashore.
By pressurising the vapour space of the cargo tank using a vaporiser and cargo compressor to force liquid cargo ashore.
LPG and other liquefied gases are often transported by sea on fully refrigerated gas carriers. What is the generally accepted definition of a fully refrigerated gas carrier?
Any gas carrier designed to carry liquefied gases and is fitted with a cooling plant.
A gas carrier, fitted with a reliquefaction plant, and designed to carry liquefied gases at the boiling temperature and at pressures slightly above atmospheric.
A gas carrier designed to load and carry liquefied gases at boiling temperature and at pressures slightly above atmospheric. No cooling plant is necessary as the cargo is loaded fully refrigerated.
Any gas carrier designed to carry pre-cooled liquefied gases in thermally insulated cargo tanks.
Which of the following knife types has a flexible blade, a round tip and is used for removing items from baking trays or spreading fillings and icing?
A griddle slice.
A paring knife.
A utility knife.
A palette knife.
You are to carry a cargo of Phenol across the North Atlantic in winter time. What precaution will you take with the double bottom tank located under the cargo tank containing the Phenol?
It is not necessary to take any additional precautions with the double bottom tank because it is part of an entirely separate pumping system.
It should be continuously vented to avoid the build up of condensation on the structure around the product.
It should be empty, to avoid cold water contacted the structure around the product because Phenol has a relatively high melting point.
It should be inerted, because Phenol has a very low Flash Point.
During the 5-yearly overhaul and operational test of a lifeboat on-load release gear, to what level should the gear be load tested?
0.8 times the total mass of the lifeboat when loaded with its full complement of persons, equipment and stores.
1.25 times the total mass of the lifeboat when loaded with its full complement of persons and equipment.
1.1 times the total mass of the lifeboat when loaded with its full complement of persons and equipment.
The equivalent to the total mass of the lifeboat when loaded with its full complement of persons and equipment.
All necessary information for the next port of call should be:
Procured during the voyage prior arrival at the next port
Procured before departure from a port
Procured on arrival at the next port
Requested on email
On a Container vessel, what is the function of a lashing plate?
As tie down point for turnbuckles on deck or hatch cover
A means of securing buttresses under-deck
A means of securing the hatch covers
A means of securing lashing chains
What would a cracked cross-deck plating found during a loaded passage on a bulk carrier indicate?
That bulkhead failure is imminent
That the vessel is due for survey
That shear forces have been exceeded
That failure of the shell plating is imminent
What is the main disadvantage of using oil free, screw type compressors for the reliquefaction plant of an LPG carrier?
The compressor has to run at very high speeds to compensate for internal leakage.
The compressors quickly overheat.
The compressor bearings wear out very quickly.
The compressor rotor elements wear quickly as they have no lubrication.
You are to supervise a hot work repair in a cargo tank on an oil tanker. You have measured the atmosphere inside the compartment as 21% oxygen content by volume and less than 1% LFL hydrocarbon vapour concentration. Does this mean the work can commence? (Select the most correct option)
No. The flammability reading should be maximum 0.5% LFL hydrocarbon vapour concentration for any hotwork to take place. .
Yes, provided that continuous readings are maintained throughout the operation and flammability readings do not exceed 2% hydrocarbon vapour content in the immediate vicinity of the hotwork site. .
Yes. The minimum safe requirements for hot work have been met.
No. Further precautions need to be taken. The area around the work site needs to be cleaned and checks need to be made on adjacent spaces. Additional precautionary measures may need to be put in place.
Who is responsible to ensure that all personnel on board are provided with suitable Personal Protective Equipment where it is needed?
The Head Department
The Master
The Company/ employer
The safety officer
What do the letters "TPC" stand for?
Tonnes per Centimetre.
Tipping Centre.
Trim per Centimetre.
Tonnes per Centimetre Immersion.
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.
A 450 volt, 859 kW rated generator has not been in operation for several weeks. Prior to starting, insulation resistance readings are taken. The minimum acceptable insulation resistance reading on the main stator winding to allow you to proceed with running the generator is:
10 Ohms
10 000 Ohms
10 000 000 Ohms
1000 Ohms
Which of the following certificates would always be required on a general cargo ship?
Certificate of Fitness for Dangerous Chemicals in Bulk
Noxious Liquid Substances Certificate
Safety Equipment Certificate
Passenger Ship Safety Certificate
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
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
When handling slops on an oil tanker, what is meant by "settling"?
Allowing any waxy layers to settle below the residual oil
Allowing the oil and water to separate out
Allowing the mixture to rest once it has been pumped into the slop tank, so that any static charge disperses
Allowing any sediment to separate out and drop to the bottom of the tank
Mention three ways of adjusting a centrifugal pump’s delivery capacity.
Throttling the delivery valve, throttling the suction valve, reduce the steam consumption.
Only throttling the suction valve.
Throttling the delivery valve, adjust the RPM, by-pass.
Throttling the suction valve, reduce the steam consumption, by-pass.
A tank containing hydrocarbon residues requires manual cleaning by use of shovels, scrapers etc. Should you:
Open the tank, provide ventilation and commence work immediately.
Open the tank and provide lighting, have someone standing by outside the tank and commence working.
Open the tank, provide adequate ventilation/lighting, test oxygen content, have someone standing by with rescue equipment, complete a tank entry permit then commence work.
Open the tank, provide adequate ventilation and lighting, commence work and have someone standing by outside the tank.
What name is given to the flat, flexible, round-tipped knife, used to remove baked food from trays and for spreading fillings?
Pancake knife.
Palming knife.
Palette knife.
Paring knife.
" On area A1 the function "" Transmission and reception of signals for locating "" is mainly based on:"
the use of SART transponders
the use of INMARSAT Epirbs
the use of SARSAT COSPAS Epirbs
the use of VHF DSC
A conventional reefer vessel is loading cargo of palletised fruit under controlled atmosphere (CA). Which of the given options is it essential that the deck officer confirms at completion of loading and before applying CA to the cargo?
All of the cargo hatches are sealed properly.
All of the cargo hatches are closed properly.
All personnel are out of the cargo holds.
That there is a tight stow in the cargo hatches.
A ro-ro unit weighing 2mt is to be loaded in the fore and aft direction and lashed by belts of SWL 0.6mt. How many lashing belts should be used to secure the unit?
4
6
8
10
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
How would you ventilate your cargo holds when sailing from cold climate to hot climate?
No ventilation should be done?
Ventilate at intervals during the night?
Ventilate at intervals during the day?
Ventilate excessively?
Which information should be included in your search plan?
Personnel to be involved in the search.
Areas to the searched and personnel to be involved in the search.
Areas to be searched.
Known hiding spots to be searched.
Which of these factors will NOT affect the necessary time needed to settle oil on top of the water in the sloptank?
The temperature in the sloptank
The weather conditions
The quality of the Crude Oil Washing performed during the last discharging
The density of the oil in the sloptank
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.?
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.
Locate them in large cabins to ease their stay.
Passenger with some form for disability must travel with accompany, and live in same cabin or next door.
They must be placed in cabins on the same level as the muster station.
Where is the "BRIDGE", in the figure?
The Bridge is C, in the figure
The Bridge is A, in the figure
The Bridge is D, in the figure
The Bridge is B, in the figure
On a General Cargo Vessel the Tonnes per Centimetre (TPC) of a vessel is 30; the present mean draught of the vessel is 6.90 m and the maximum summer load draught is 7.00m; Calculate the amount of cargo that can still be loaded?
The amount of cargo that can still be loaded is 300 tonnes
The amount of cargo that can still be loaded is 3000 tonnes
The amount of cargo that can still be loaded is 30 tonnes
The amount of cargo that can still be loaded is 3 tonnes
What is the meaning of the term "Make Fast", when mooring the ship?
Make Fast means to coil up a rope
Make Fast means to avoid eating all meals during the daylight hours.
Make Fast means to act very quickly
Make Fast means secure the ropes to the bits
Which statement is true?
Normal temperature of the lub oil after the cooler is approx. 45 C.
When the ME is running, the Fresh Water enters the engine at the top and leaves the engine at the bottom
Normal temperature of the oil after the cooler is approx. 65 C.
Minimum scavening air temperature is 60 C to avoid dewing in the scavening air cooler
Under which MARPOL category are vegetable oils classified?
Category "Z".
Category "Y".
Vegetable oils are not classified under the MARPOL categories.
Category "OS" (other substances).
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 kind of fixed extinguishing plant is installed to use on an oil tanker’s engine room and pump room?
Powder plant.
CO2 plant.
Foam plant.
Water spray plant.
According to MARPOL there are requirements regarding minimum amidships draught for crude oil tankers in ballast condition. What is the formula for calculating minimum draught amidships?
2.0 + 0.002L
2.0 + 0.15.l
2.0 + 0.02L
2.0 + 0.0015L
Which of the hydrocarbon gases is the main one in LNG?
Butane.
Methane.
Ethane.
Propane.
What is the value of GZ upto an angle of heel of 5 degrees?
GM x Sin angle of list
GM x Cosine angle of list
GM x Tan angle of list
GM / Sin angle of list
What are the main elements in a damage control plan?
A damage control plan is the same as an emergency plan
Arrangements for correction of list due to flooding within 15 minutes
Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.
Instructions and procedures for reporting damage to the Company
With regard to the IMDG Code what do Calcium Oxide (UN No. 1910), Magnetized Material (UN No. 2807), Sodium Aluminate (UN No. 2812) and Battery Powered Equipment (UN No. 3171) have in common?
They are listed as Corrosive Substances - IMDG Class 8
They are not listed in the IMDG Code
Due to their characteristics they may be shipped in open top containers
They are not subject to the provisions of the IMDG Code but may be subject to provisions governing the transport of dangerous goods by other modes
On a Container vessel, what do the letters 'PP' mean within the IMDG Code?
Packaging
Pollutant
Marine Pollutant
Severe Marine Pollutant
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.
A High Breaking Capacity fuse found in a Main High Voltage Switchboard will have fault level rating of ?
4000A
400A
40 kA
40A
How is the pressure in the cargo containment system of a conventional LNG carrier controlled during normal operation?
By using the boil-off gas as fuel for the ships propulsion plant.
The gas vapour is evacuated to the atmosphere via the vent-line.
By varying the MARVS.
The gas vapour is taken from the vapour header and passed through the demister and into the LD Compressor and evacuated to the atmosphere via the vent mast.
The diagram shows a calibration curve for a pressure gauge. What is an alternative name for the slope of the characteristic?
Sensitivity
Hysteresis
Repeatability
Off-set
What kinds of checks must be carried out on slings, wires and other items of lifting equipment before they are used in routine operations?
They must be tested under load, to ensure they can bear the planned weight.
They must be visually inspected to ensure that the ID and SWL marks are clearly legible.
They do not need to be checked. They are checked under the vessel's planned maintenance system every 12 months.
They must be visually inspected and ascertained, so far as is possible, as being in good working order and fit for purpose.
What is the normal name of the waterproof suit shown in the picture?
Fluorescent orange suit
Survival suit
Wet suit
Life suit
What will you do if you are told to operate unknown mechanical equipment?
As time is money, the trial and error method shall be used.
Ensure that all safety guards and devices are disconnected.
Seek advice from your superior before attempting to operate it.
Do not operate the machine, but read the manual before reporting to the head of your department
In terms of an oil tanker fitted with two slop tanks, how are they commonly referred to?
Slop tank (cycle A) and slop tank (cycle B)
Slop tank (settling) and slop tank (decanting)
Primary slop tank and secondary slop tank
Nominal slop tank and back-up slop tank
A vessel’s midship draught is 8.50m. What is the corrected midship draught if the vessel is on an even keel? Midship marks are painted 0.05m forward of midships; LBP is 162m.
8.45m
8.55m
8.40m
8.50m
Which of the following statements concerning an accidental oil spill in US waters is true?
The person in charge must report the spill to the US Coast Guard
A warning broadcast must be made by radiotelephone (VHF)
The Corps of Engineers is responsible for the clean up of the oil spill
The Department of Interior is responsible for the clean up of the oil spill
A palletised fruit cargo is being loaded into a cargo space which will be partly empty at the completion of loading. In order to secure the cargo which of the options given is the best way to complete the stow?
With the face of the stow athwart ships (side to side across the compartment.
With the face of the stow stepped down using cartons after breaking down the last pallets.
With the face of the stow stepped across the compartment.
With the face of the stow fore and aft along the length of the compartment.
The sign on the image indicates:
Location of immersion suit(s)
Location of boiler suit(s)
You should wear warm clothes in this area
You should wear immersion suit when working in this area
Furniture in stairways and corridors shall be kept to a minimum on board passenger ships, why?
Escape routes must be clear of obstructions and also due to fire protection
It is not allowed to sit in stairways and corridors
Due to fire protection
Passengers will most probably sleep in stairways and corridors if they are furnished
During the normal operating cycle of a diesel engine there are side thrusts generated by the piston as it moves up and down the cylinder due to the changing angle of the connecting rod. How are these side thrusts accommodated in a trunk piston engine?
The side thrust is transmitted to the cylinder liner and the engine frame by the piston crown.
The side thrust is transmitted to the cylinder liner and the engine frame by the piston rings.
The side thrust is transmitted to the engine frame by the crosshead bearing.
The side thrust is transmitted to the cylinder liner and the engine frame by the piston skirt in way of the gudgeon pin.
The reliquefaction plant for cargo cooling of liquefied gas cargoes can operate on either a direct or indirect cycle. On which liquefied gas cargoes must indirect cycle cargo cooling plant be used according to the IMO Gas Codes?
All liquefied cargoes in north European waters during winter time
Cargoes such as butadiene and vinyl chloride which need two stage cycle with intercooling.
Cargoes such as chlorine, ethylene oxide and propylene oxide for which the vapours cannot be compressed due to temperature restrictions.
LPG cargoes being carried in north European waters during winter time
The ship is en route. When may passengers visit the bridge?
Passengers are not allowed to visit the bridge while the ship is en route
When the weather is nice and the sea is calm
During daytime if the traffic is smooth
Whenever they want
What is the characteristic of alkanes?
Alkanes has only a single bond between two atoms.
Alkanes has a triple bond between the atoms.
The name of alkanes always ends with “anes”.
Alkanes has only a single bond between the atoms.
How can the Master ensure that all cargo loading doors, bow visors, weathertight ramps etc. are locked and secured before the ship proceeds on any voyage?
Automatic systems will alarm you if the doors are not properly secured.
By having an effective system of supervision and reporting of the closing and opening of doors. Time of closing and opening of doors shall be entered in the log-book.
The bosun is always responsible to check the watertight integrity before the ship proceeds on any voyage.
By having experinced officers and crew to supervise the closing and opening of doors. Time of closing and opening of doors shall be entered in the log-book.
Whish of the following disposal would be permitted?
Food waste from a vessel outside a special area and 10 miles from nearest land
Food waste from a vessel inside a special area and 10 miles from nearest land
Paper products from a vessel inside a special area and 15 miles from the nearest land
Food waste from a vessel outside a special area and 12 miles from the nearest land
What are the duties of the engineer officer in charge of the watch?
To carry out inspections of the steering gear at least once a watch.
To keep constant surveillance of machinery and auxiliary systems.
To ensure that the machinery spaces are properly manned.
To take appropriate actions to maintain the speed required.
Which of these factors does not contribute to oxygen depletion inside a cargo hold full of logs?
Restricting hold ventilation
Chemicals used to fumigate the hold
Mould on the logs
Humidity within the hold
The "dew point" of a liquid chemical is often quoted in the documentation relating to its loading and carriage. Which of the following is a definition of "dew point"?
The temperature at which a gas is saturated with respect to a condensable component, as in operational terms is seen at the point when air is saturated with moisture.
The temperature at which dry-ice melts in Acetone.
The temperature at which a condensable component is saturated with respect to a gas, as in operational terms is seen at the point when moisture no longer detectable in air.
The temperature at which a saturated gas exhibits condensation.
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.