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Главная Онлайн-тесты CES Chemical tanker MASTER / Ch-Officer Онлайн-тест CES 5.1 для MASTER / Ch-Officer, Chemical tanker vessel
Онлайн-тестирование: Онлайн-тест CES 5.1 для MASTER / Ch-Officer, Chemical tanker vessel
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Тест состоит из случайных вопросов по выбранной теме.
Вопрос 1 из 90
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Which of the following names is given to the basic types of foam as far as they are differentiated according to the way bubbles are obtained:
AFFF foams
Chemical foams
All answers are good
Polar foams
*Which of the following requirements applies to the inert gas system of a tanker?
Inert gas must be delivered at a rate of at least 125% of the maximum rate of discharge capacity of the ship expressed as a volume
All these requirements apply
The oxygen content of the inert gas must not exceed 5%
The oxygen content of the atmosphere of any part of any cargo tank must not exceed 8%
Which deck is the "bulkhead deck"?
A deck between two transverse bulkheads
A deck which transverse bulkheads go through
The uppermost deck to which transverse bulkheads are carried
The deck on which the transverse bulkheads are resting
Multipurpose dry chemical powder
will only extinguish A and B fires
will conduct electricity with very high voltage
will never conduct electricity
will only extinguish B and C fires
What is the main criterion generally taken into account to classify portable extinguishers:
The extinguishing agent
Their pressurisation system
The way they can be moved
Their capacity of charge
Which of the following items SHALL be included in a fire drill?
checking the operation of fixed fire-extinguishing equipment
reporting to stations and preparing for the duties described in the muster list
operating one of the fixed fire-extinguishing equipment
checking capability of persons to prevent panic
You are carrying out a search in a smoke filled room, wearing a breathing apparatus. How would you conduct this search?
Proceed straight ahead to the far bulkhead and then carry out a left or right hand search as appropriate
As soon as you enter carry out a right or left hand search by placing the appropriate hand onto the bulkhead and then follow the bulkhead round as quickly as possible.
Proceed to the approximate centre of the room and then carry out the search on a circular pattern.
Carry out a right or left hand search and proceed carefully, feeling the area in front with the foot and using the back of the free hand to check the area around.
What is a "fire wire"?
A wire for pulling fire-hoses up to the top bridge
A wire for pulling burning ships off the pier
A wire for securing smoke divers
A wire for handling fire buckets
When with a radio telex-connection with a coast-station ga+? appear on the screen:
Don't know
The command der+? Must be given
A command as dirtlx…+ can be given
It means “good afternoon, over”
The number of sequential transmissions of a MF/HF-DSC distress alert single frequency call attempt is:
5
3
1
Don't know
After receiving a DSC distress alert in a HF-band you must immediately:
listen on the radio-telephone distress frequency in the pertinent band
Don't know
send a DSC-acknowledgement
send a DSC distress alert relay message
The accuracy of an Inmarsat-E positioning-system is:
5 miles
20 miles
200 meters
Don't know
Which of the following is not a DSC watch frequency?
2182 kHz.
6312 kHz.
2187.5 kHz.
12577 kHz.
Which of the following two digits codes is used to obtain maritime assistance ?
37
39
32
38
The frequency 121,5 MHz is used for :
SARSAT-COSPAS EPIRBS
INMARSAT E EPIRBS
SART transpondeur
DSS VHF calls
A distress-alert call from an RCC or coast-station, preceding distress alert relay, begins with:
MAYDAY (3x)
MAYDAY RELAY (3x)
PAN PAN (3x)
Don't know
The normal mode of operation for each coast station shall be indicated in:
The ITU List of Ship Stations
The ITU List of Coast Stations
The ITU List of Radiodetermination and Special Services
The ITU List of Callsigns and Numerical Identities of Stations used by the Maritime Mobile and Maritime Mobile-Satellite Services
Vent fans and fan ducts located in hazardous locations, if made of ferrous materials, require a certain clearance between the impeller tips and the casing (to preclude any sparking). If you are doing an overhaul, you would ensure this clearance is at least:
53.0 mm?
13.0 mm?
1.0 mm?
5.0 mm?
What is one of several requirements in IBC/BCH when loading Acids ?
Connections on manifoilds and jumpers should be protected with spray shields to guard against spray.
Last cargo in the tank should not have been Caustic Soda.
Connections on manifoilds and jumpers should be equipped with manometers in order to quickly record high pressure.
Cargo manifoild and lines should be equipped with sprinkler system.
You are at the mainfold with the cargo surveyor, drawing samples at the start-up of cargo. A sample of 2-Ethyl Hexanol is off colour. The surveyor instructs you to open the manifold valve and start loading. What will you do?
Tip the sample into the drip tray and draw more samples until it clears. A maximum of ten litres may be drawn and dumped before it is considered a problem.
Open the manifold valve as requested but make a note in the log-book regarding the off-colour sample.
Keep the manifoild closed, report the situation to the Chief Officer.
Open the necessary tank loading valves and then open the manifold valve. With this product, the colour will soon clear.
Who has the right, in addition to the issuing authority, to inspect the ship and control the validity of the ship's Safety Certificates in foreign ports?
Inspectors from the International Maritime Organization (IMO)
Port Authority Inspectors
Inspectors duly authorized by the port state government authorities
Duly authorized Classification Association inspectors
Are there any exceptions from OPA-90
No exceptions
Yes, transit passage through US waters to a non US port
Yes, if the vessel calls a US port for only a short stop
Yes, close to any US naval base
Who shall notify the cleaning up contractor (OPA-90)
The shipowner
The Master
Emergency response team
Qualified Individual
Norwegian merchant- and fishing vessels have to participate in the AMVER system. What is the purpose of AMVER?
Automatic system for plotting vessels with the purpose of rescue.
Weather routing.
World wide telecommunication system.
A NATO reporting system in case of joining a war-convoy.
Two synthetic fibre lines of the same size and material are run out and pretensioned at the berth. However one line (line A) is secured to a shore bollard twice as far as the other line (line B). If a sudden increase in wind now causes an extra load to come on the lines, the extra load will be shared by the lines as follows:
A will take 3/4 of the extra load. B will take 1/4 of the extra load.
A will take 1/3 of the extra load. B will take 2/3 of the extra load.
A will take 1/2 of the extra load. B will take 1/2 of the extra load
A will take 1/4 of the extra load. B will take the 3/4 of the extra load.
According to the rules of GMDSS vessels one must be able to receive MSI with the aid of:
HF and VHF DSC-encoders
Don't know
EPIRB and SART
NAVTEX and EGC-receiver
Which one of the listed requirements regarding radiotelegraph stations do not correspond to present regulations?A radiotelegraph station shall be provided with:
a reliable clock with a dial not less than 12,5 cm diameter, and marked to indicate silence periods
spare parts, tools and testing equipment
direct access to the navigating bridge
either an electric inspection lamp or a flashlight
The rule for having a radio transmitter license is internationally laid down in:
SOLAS
Don't know
Radio Regulations
Search and rescue treaty of Hamburg
What VHF-channel is according to the rules of the GMDSS, appointed for mutual radiotraffic between ships at sea (with the exception of co-ordination of shipping movements and other kinds of communication …………… to safety:
channel 13
channel 06
Don't know
channel 16
In maritime radio-communication by “low power” given by a nautical phone is meant a transmitting power of:
1,0 – 1,5 watt
Don't know
O,5 watt maximum
0,5 – 1,0 watt
The grabline of a lifebuoy has a length of:
5 times the outer diameter of the lifebuoy
4 times the outer diameter of the lifebuoy
2 times the outer diameter of the lifebuoy
3 times the outer diameter of the lifebuoy
Which item among those below is included in the normal equipment of every lifeboat ?
sea-charts and navigating equipment
an EPIRB
four rocket parachute flares
one life-jacket for each person
How much lifeboat capacity should be provided on a conventional cargo ship of more than 85 meters in length?
50% of the ships complement on each side
100% of the ships complement on each side
150% of the ships complement on each side
125% of the ships complement on each side
Which one of the given requirements regarding manning and supervision of survival craft corresponds to the SOLAS regulation?
Every motorized survival craft shall have a certificated engineer assigned.
Every lifeboat required to carry radio telegraph installation shall have a deck officer capable of operating the equipment assigned.
A deck officer or certificated person shall be placed in charge of each survival craft to be used.
There shall be at least 5 trained persons on board, mustering and assisting untrained persons.
How should the sample locker be fire protected ?
It should be protected by the means of a portable foam extinguisher located in the locker.
It should be protected by a fixed fire fighting system i.e. sprinkler system.
It should be protected by the means of a portable water extinguisher located in the locker.
It should be protected by the means of a portable CO2 extinguisher located in the locker.
A section of seawater pipe has been removed for maintenance. When refittingthe pipe after completing the work the bolt holes in the flanges are found to be misaligned. What procedure should be followed to finish the work?
Use wooden wedges to force and hold the pipe into the correct position and then fit the bolts.
Use a chain block to pull the pipe flanges into alignment and leave it in place after the bolts are fitted to avoid overstressing the bolts.
Adjacent pipework should be slackened off to allow the pipe to be aligned. Any incorrectly positioned brackets should be adjusted after the pipe is refitted.
Force the pipe into position and then hammer the bolts into the holes to hold the pipe flanges into alignment.
A triac is used to provide temperature control of an oven. The galley complain that the oven only reaches approximately 50% of demanded temperature. Which of the following is a likely cause?
The voltage supply to the oven controller is reduced by about 50%
Connection between the demand knob and the triac gate terminal has gone open circuit.
One of the main switching elements in the triac has failed.
The triac has completely failed.
The ring expander for removal and refitting of an air compressors piston rings is found to be broken and unusable. The work cannot be delayed until a replacement is obtained. Which of the methods given in the options should the ship's engineers use to complete the work?
Lever the rings open using a couple of screw drivers to get the rings past the ring grooves.
As compressor rings are relatively small with little tension the ends can be pulled apart sufficiently to clear the piston using the thumbs.
Use loops of string or rags to pull the ring ends apart so the rings can be lifted off and on.
Fabricate a conical guide from tin plate or similar with the large diameter just bigger than the compressor piston so the rings can be eased open for fitting.
In a series installation of a purifier and a clarifier, what is the purpose of the clarifier
As a safety net, for improved cleaning of the fuel oil
You will probably have less alarms
In case the gravity disc is too small
To get round the problem of fluctuating temperature
How can you monitor the liquid level in the vapour line?
By use of a float switch or differential pressure in the liquid receiver
By monitoring the atmosphere in the vapour line with a fixed gas detector
There isn't any possibilities to monitor liquid in the vapour line
By monitoring the temperature in the vapour line on the compressors suction side
What should a cadet be aware of when using a needle gun?
A Cadet should be aware of the dangers associated with using a needle gun
A Cadet should be aware that the valve of a needle gun is not to be opened before starting to descale rust
A Cadet should be aware of the thickness of the needle gun valve
A Cadet should be aware that there could be a leak in the cowline of a needle gun
Sounding pipes in the engine room are normally fitted with deadweight cocks and screw caps. Which of the following statements is correct?
Caps and cocks should be closed at all times, except when sounding tanks, to prevent ingress of water or oil into the engine room in case of tank bottom damage or overflow.
Deadweight cocks should be fastened in the open position to save time when sounding the tanks.
It does not matter where the cocks/caps are unless the tank is in use.
Caps should be placed on top of sounding pipes to keep the engine room tidy.
In terms of instrumentation and measurement, what is an I/P Transducer?
A transducer that converts a known electric current to a pressure proportional to the current.
A transducer that increases a pressure signal which is too low to give the desired effect.
A transducer that converts a pressure to a proportional electric signal.
A transducer that is inverting a pressure signal.
On a Container vessel, how should the first tier of under-deck containers be loaded onto a non cellular vessel?
Onto dunnage laid athwartships over the tank top
Directly onto the tank top
Onto dunnage laid directly under the containers' bottom rails
Onto dunnage laid fore and aft over the tank top
Before commencement of any work aloft, you should carry out risk assessment of the worktask. What kind of extra personal protective equipment is required as a minimum to carry out the work?
Carry out the work without extra personal protective as long as no one sees what's going on
All personnel who are working aloft, where there is a risk of falling more than two metres, should wear a safety harness (or belt with shock absorber) attached to a lifeline.
As long as someone is supporting the ladder there is no need for extra personal protective equipment
Lifeline
Cargoes of which of the following groups produce a particularly violent reaction when mixed with an equal quantity of water?
Acids.
Acrylates.
Glycols.
Caustics.
If normal cool down rate has been complied with, what should the temperature at the primary insulation and the secondary barrier be?
-120C and -100C.
-100C and -80C.
-130C and -120C.
-140C and -130C.
Which IMO convention takes care of the human safety at sea?
It is the MARPOL that takes care of the human safety at sea.
There are not any conventions that take care of the human safety at sea.
It is the STCW that takes care of the human safety at sea.
It is the BCH Code that takes care of the human safety at sea.
What should you observe when patrolling public areas on board?
Drunk people
Stowaways
If all the fire extinguishers are in place and that fire doors are open
All abnormalities that may affect the safety/ security of passengers, crew and the ship
What does MARVS mean on a cargo tank?
Maximum Allowed Relive Valve Setting.
Minimum Allowed Relive Valve Setting.
Maximum Recovery System.
Maximum ROB of Vapour.
What height of water above the inner bottom will activate the cargo hold high level alarm
Not more than 2.5m
Not more than 2.2m
Not more than 2.0m
Not more than 2.8m
It is required that a crewman enters a refrigerated compartment containing produce at minus 60 degrees Celsius. Which of the items of personal protective equipment given in the options is the most important for the crewman to wear?
A hard hat.
Thermal underwear.
Insulated gloves.
Insulated overalls
A Bulk Vessel is to load a cargo of grain; pre loading calculations show that IMO stability criteria cannot be achieved; the vessel should do which of the following?
The grain surfaces in some or all of the cargo spaces must be secured
The cargo can still be loaded
An exemption certificate must be applied for
The vessel will be unable to load the cargo
When ballasting operations are about to start on a bulk carrier, what important checks must be made?
That all air pipes are open and that the pipeline and valve system is correctly set up
That the vessel is even keel and upright
That the cargo operations are completed
That the hold bilge system has been cleaned and the access ladders checked
When refitting the bolts into a flange on a steam line how should the bolts be prepared so that they can be easily removed next time maintenance is required?
Coat the threads in graphite based grease.
Fit the bolts dry with a spring washer.
Apply thread tape to the bolt threads.
Coat the threads in general purpose grease.
What are the effects of a bulk vessel loading a high density cargo resulting in a large metacentric height (GM)?
Suffer torsional stresses and have small righting levers
Have a slow roll and very small righting levers
Have a fast roll period and possibly suffer racking stresses
Have a slow roll and large righting levers
A sudden or gradual decrease in the pH-value, or an increase of the sulfate content, in the cooling water may indicate:
Leakages from seawater coolers
Leakages from L.O. coolers.
Exhaust leakage
High concentration of corrosion inhibitors
Why is an inertgas system required when COW is undertaken?
Safety purpose?
Improved outturn of cargo?
Less bildup of sediment in tanks?
Higher pumping flowrate?
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
Which of the following food types are good sources of polyunsaturated and monosaturated fatty acids?
Meat products, such as pies, re-formed joints and burgers
Fish, nuts and vegetables
Sugar, chocolate and pectin
Full fat dairy products
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
During inspection of a medium speed diesel engine piston of the composite type it is found that the steel crown is loose at its connection to the alloy skirt. Further inspection reveals damage to the surfaces and evidence of metal particles where the two parts are connected. Select, from the options given, the likely cause of this type of damage.
Fatigue due to excess compression at the joint between the components.
Crushing due to over tightening of the piston crown retaining bolts.
Shear of the metal surfaces due to excessive load on the engine.
Fretting due to loss of compression at the joint between the components.
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
What is of utmost concern when steel cargoes are carried in a bulk carrier?
Bending moments being greatly exceeded in the seagoing condition
A relatively small range of stability as compared to carrying grain
The springing of hatch cleats as the vessel flexes due to torsional stresses
Deformation due to torsional stresses
A high pressure boiler is operating with all parameters normal except that the firing rate is high and the superheater temperature is high. Which of the options given is the likely cause of this condition?
The generating and screen tubes are fouled.
The de-superheater control is not operating correctly.
Insufficient combustion air is being supplied.
The superheater tubes are fouled.
The sign on the image indicates:
Location of lifebuoy with self-igniting light and self-activated smoke signal
Rescue zone
This is the location where you should operate pyrotechnic equipment (Buoyant smoke signal, hand flares and rocket parachute flares) In case of an emergency
Location where you should throw lifebuoys in case a man- over-board situation occurs.
The threads on the drain plug for the bronze end cover of a sea water cooled heat exchanger have been badly damaged during maintenance. There is no spare brass plug available. What is the best solution for repairing the heat exchanger?
Use a steel plug with the same thread as the original to replace it.
Wrap the threads in thread tape and coat it with jointing compound before refitting it.
Hammer in a wooden tapered plug as a temporary repair.
Make a new brass plug on the lathe to fit the drain hole.
What does a low angle of repose indicate with respect to a bulk cargoes?
The cargo is stable in all situations
The cargo Is liable to self-heat
The cargo is more liable to shift than cargo with a high angle of repose
The cargo is unlikely to shift
Which of the following is the minimum acceptable value of insulation resistance for High Voltage equipment?
100 k Ohms
1M Ohms
1G Ohms
100 M Ohms
What area of an ordinary cook's knife is most likely to contain trapped particles of food and will require particular attention when it is being washed and cleaned?
The area where the blade is fiited into the handle.
The back edge of the blade.
The tip or point of the blade.
The area that has been gripped by the fingers and palm of the hand.
Liquefied natural gas (LNG) is often referred to as natural gas or marsh gas. What is another common name for LNG?
Propane.
Ethane.
Butane.
Methane.
What do you understand by the order: "Move the pilot ladder to the other side"?
Move the pilot ladder to the other side, means: to shift the pilot ladder to the opposite side of the ship.
Move the pilot ladder to the other side means: to change the position of the pilot ladder from the main deck to the fore deck.
Move the pilot ladder to the other side means: to rig another pilot ladder
Move the pilot ladder to the other side means: to move the pilot ladder further along nearer to the bow.
Why are zinc anodes sometimes fitted to heat exchangers in seawater cooling systems?
To prevent fouling of the system.
To prevent scale formation in the system.
To prevent marine growth in the system.
To prevent corrosion of the metals used in the system.
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.
Prior to removing the access doors to a pressure vessel for internal maintenance it should be ensured that all pressure has been relieved. As well as a zero indication on a pressure gauge which other measure, from the options given should be taken to confirm this prior to commencing the work?
Open the drain valve when the gauge reads zero to check that there is no outflow.
Open the drain valve and when the outflow stops slacken off the drain valve flange bolts and 'crack' open the flange in case the drain is blocked.
Open the drain valve while pressure still shows on the gauge and to check it is clear. Outflow should cease as the pressure gauge reaches zero.
Back of the tensioning device for the relief valve to vent the pressure to atmosphere.
Proper and accurate inventory of stores should be maintained inorder to:
Order the required stores
Report to the office
Control the ship's budget
Show to the port authorities
On a conventional reefer vessel carrying palletised cargo, dunnage bags (air bags) are used to prevent the pallets from moving during bad weather. Assuming that the air bags are correctly positioned and inflated, select, from the options given, the other important function provided by these bags
They will help to achieve a good stowage factor.
They will prevent short circuiting of the cold air.
They will prevent chafing between the pallets
They will protect the ships structure.
Why do we use nickel-alloyed steel, stainless steel or aluminium in cargo tank construction on gas carriers designed for LNG and LEG?
Because these metals have a very low thermal expantion coefficient and do not burst of extreme low temperatures
Because these metals cost less than other metal
Because these metals have a high thermal expansion coefficient and do not burst of extream low temperatures
Because the weight on this metals are not so high than other metals
Which of the following has the highest diffusion resistance?
Stationary air.
Glass:
Mineral wool.
Freon 22.
The gyro compass can suffer from a compass error and may need to be allowed for, when steering a course in a dangerous navigational area. What is the probable cause of the error?
Compass Deviation
Variation
An uncorrected course and speed error.
Fluctuations in the electrical supply to the compass.
What is ‘Design Load’?
The total weight of cargo
The total weight of cargo subject to athwartships and longitudinal accelerations
The total weight of cargo subject to vertical accelerations
Loads for which the ship’s decks and hatchcovers are designed
Which of the following statements is incorrect with regard to IMDG Class 5 cargoes?
The goods must be stowed such that they can be easily jettisoned
The goods require protection against potential sources of ignition
The goods require protection against the accumulation of dangerous vapours
The goods require protection against contact with moisture and water
In a two stage compressor you will find pistons with different diameters (one is bigger than the other).Which one of the following statements is correct ?
The smallest diameter piston is the stage two piston
A big piston will give less oil content in the air.
A big piston will deliver dryer air into stage one.
The biggest diameter piston is the stage two piston.
What are the symptoms that would indicate the filter/drier unit in a refrigeration system was becoming blocked?
A large temperature drop across the drier with possible icing of the casing.
Pressure drop before the driver.
A hammering noise from the drier.
The drier casing temperature increases.
Why is it important to recognize the language of the passengers?
Enables you to communicate with them during normal operation.
Enables you to inform all passengers about arrival time.
So that you are able to address all their needs.
Enables you to communicate with them during normal operation and in an emergency.
What do you understand by the term "luffing"?
The raising or lowering of a crane jib, moving the head of the crane and therefore a suspended load horizontally towards or away from the crane.
The combined movement of hoisting a load and slewing the crane, employed when lifting a load from a dockside over and into a ship's hold, or vica versa.
The initial phase of hoisting a load, where the crane wire and structure takes the weight of a suspended load.
The rotating of a ship's jib in a circular movement about the crane.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
50% extra
5% extra
25% extra
10% extra
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
What factors do you consider as important before mooring a vessel?
Use of proper Personal Protective Equipment
Use of proper Personal Protective Equipment, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures
Use of proper Personal Protective Equipment, Well maintained mooring equipment, Make sure the area is tidy and clean, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures, Effective communication
Use of proper Personal Protective Equipment and be aware of Snap-back Zone
Which international convention deals with fire-fighting equipment etc.
Load Line convention
CRISTAL
SOLAS
MARPOL
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.