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Онлайн-тестирование: Онлайн-тест CES 5.1 для Engine department, Support level
Онлайн-тест
Описание
Тест состоит из случайных вопросов по выбранной теме.
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By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?
The pump will not draw liquid.
The pump will overheat.
The pump will suffer damage
The pump needs to run faster.
Give the command after ga+ for the transmission of a ‘store and forward’ –message withradio-telex:
sta…+
tlxstf
tlx..+
stf…+
Automatically connected telephone calls via INMARSAT A are charged
on the basis of a one minimum charge with one minute incremental steps
on the basis of a six second minimum charge with six second incremental steps
on the basis of a three minute minimum charge with one minute incremental steps
on the basis of a six second minimum charge with one second incremental steps
Which of the following Meridian figures is correct? Approx. Pos: N30°00' W15°00'. Declination: 15°00'S.
Figure 4 is correct.
Figure 2 is correct.
Figure 1 is correct.
Figure 3 is correct.
You are on ship A. What would you do before meeting ship B?
Stop the engine before meeting, and apply engine during meeting
Increase speed to full ahead, 13 knots
Put the engine to full astern
Increase the speed to 8 knots
You are drifting with a loaded VLCC in open sea. You have observed the direction and rate of drift. Can you do anything to change the direction and rate of drift?
We will just have to wait and see
We can apply the rudder although we have no engine power
No, there is nothing I can do about that
We can trim the ship by stern as much as possible. This will most likely change the direction and rate of drift.
A ship is turning around a point called the "pivot point". What is the position of this invisible point when the ship is "dead" in the water?
Outside of the center line
Near the bow
About same position as the center of gravity
Near the stern of the ship
Your engine is going astern and you pick up sternway. The rudder is midships, and you are operating on a single, right-handed fixed screw. How will your ship react?
She will most likely change heading to starboard
She will most likely go straight astern
She will most likely change heading to port
The stern will be lifted to starboard
What is important to check when transferring a position from GPS to a chart?
Reading the position correct
Plotting the position correct
Make sure that the chart and the GPS use same datum
Make sure the map is updated
What is understood by the term "Balanced Rudder"?
A rudder with equal rudder area forward and aft of the turning axis, the turning axis being at the geometrical centre of the rudder area
A rudder with part of the rudder area forward of the turning axis, therefore reducing the load on the steering motor.
A rudder which is operated by two steering motors providing equal amounts of thrust to the rudder
A rudder with an additional flap attached the training edge to improve the rudder efficiency
Which electronic component does this graphical symbol represent?
Diode
Transistor
Silicon controlled rectifier
Tunnel diode
You are crude oil washing tank 1C tank. The duty deck officer reports that the oxygen reading in the tank is 9%. What should you do ?
Carry on with the washing until you have checked the inert gas plant is fully functional.
Carry on with the washing but attempt to lower the oxygen level to less than 8%.
Stop the washing process and do not resume until the oxygen content in the tank is below 2%.
Stop the washing process and do not resume until the oxygen content in the tank is below 8%.
Which of the given statements can be considered as the most accurate according to the IMO Gas Codes and other LNG industry standards?
Methane is neither toxic nor an asphyxiant gas.
Methane is considered as presenting a flammable hazard and may also be an asphyxiant.
Methane is considered as presenting both flammable and toxic hazards.
Methane is considered as presenting a toxic hazard and may also result in a chemical burn in contact with the skin.
If a vessel is rolling heavily in a seaway and has negative GM and a small Angle of Loll, describe how the vessel will roll.
Roll unevenly flopping over between the Angle of Loll on each side.
Roll evenly either side of the upright position.
Roll evenly each side of the Angle of Loll.
Roll between the Angle of Loll on each side.
What facility exists under the ISM Code for individual control measures of specific work-related tasks?
The definition of supervisory responsibilites.
The Permit to Work system.
The documentation of individual job
Basic manual dew point measurement devices are commonly used by surveyors when monitoring the dryness of a cargo tank prior to loading a liquid chemical product. Which of the descriptions below is a summary of how the measurement is carried out?
A small quantity of Methanol is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously drawn through the device, passing over the surface of the Methanol. When the first signs of evaporation are observed (smoke rising from the surface), the temperature of the Methanol is noted. Reference may be required to tables to correct the reading for calculation purposes.
A quantity of Acetone is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously pumped through the liquid. Bubbles will be seen to reach the surface of the bath until the dew point is reached. When the flow of bubbles ceases, the temperature of the Acetone is noted. Reference may be required to tables to correct the reading for desired parameters.
A small quantity of Acetone is placed into the device and dry-ice is progressively added to it to steadily reduce the temperature. A sample of the atmosphere in the tank is continuously drawn through the device, passing over the polished or mirrored surface of the container. When the first drop of mositure (dew) is observed to form on the polished surface, the temperature of the Acetone bath is noted. Reference may be required to tables to correct the reading for desired parameters.
A small quantity of dry-ice is placed into the device, submerged in deionized water. A sample of the atmosphere in the tank is continuously drawn through the device, passing across a reagent filter. When the dew point is reached, this reagent filter will change colour from white to green, indicating saturation. The temperature of the deionized water is noted at this time and corresponds to the dew point. Reference to correction tables is required to correct the reading for barometric pressure.
What is known as "cargo sweat" on a Bulk Carrier?
Condensation of moisture directly onto the ships structure
Condensation of moisture directly onto the cargo
Condensation of moisture onto the ships structure and cargo
Heating of cargo
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?
10% extra
25% extra
5% extra
50% extra
A loaded bulk carrier experiences heavy ice accretion on deck forward, what are the major concerns of the changes in stability?
Excessive trim by the stern
Reduction of speed and additional fuel consumption
Reduction of metacentric height (GM) and loss of freeboard forward
Increase in metacentric height (GM)
A slow speed diesel engine is fitted with a slow turning facility. How would the slow turning normally be set to operate?
It should be manually operated before the normal start sequence following an engine stopped period of more than 10 minutes.
It should automatically operate before the normal start sequence following an engine stopped period of more than 20 to 30 minutes when manoeuvring.
It should automatically operate before every normal start sequence.
It should automatically operate every 20 minutes when the engine is stopped during manoeuvring.
When loading LNG into prismatic type cargo tanks it is sometimes prohibited to leave any of the tanks between 10 to 80% full at completion of loading. What is the main reason that it is recommended to avoid this prohibited partly filled range?
The free surface effect might result in excessive sloshing loads.
It will increase the rate at which boil off gas will be produced.
It would be an uneconomical use of cargo capacity.
It will increase the vapour space and therefore increase the risk of flammable mixtures developing.
On a RoRo vessel, what standing instruction should be given to protect the Ramps when loading ro-ro units?
Damaged units should be rejected for loading
All ro-ro units must be thoroughly checked for damage prior to the loading ramp
Units whose weights exceed the ramp load density/SWL must not be loaded
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.
During inspection of the main bearing shells and housings of a medium speed diesel engine it is found that there is evidence of fretting at some of the bearing shell joint faces, the bearing housing joint faces and also between the back of the bearings and the bearing pocket. From the options given which is the most likely cause of these defects?
Running the engine overloaded.
Excessive tightening of the main bearing bolts
Operating with a faulty torsional vibration damper.
Insufficient tightening of the main bearing bolts.
Wich type of compressors are used as cargo compressor onboard liquified gas carriers?
One, two and three stage piston compressors.
Piston, screw and centrifugal type compressors.
One, two and three stage screw compressors.
Oil free screw and piston compressors.
How would pirates attacking a ship be communicated to another ship?
"My ship is under attack by pirates"
"My ship was under attack by pirates"
"My ship has pirates"
"My ship will be under attack by pirates"
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.
Telephones are being used to communicate between personnel onboard and ashore during a bunkering operation. What instruction would you give to ship personnel regarding action to take in the event of failure of the telephone communication during the operation?
Use a crewmember as a messenger between personnel involved in the operation.
Slow down the bunkering rate until alternative reliable communications are established.
Stop the bunkering until alternative reliable communications are established
Call the electrician, and get him to repair the telephone while the bunkering operation continues.
What is the most likely cause of the clean oil outlet pressure being higher than normal when operating a centrifuge as a fuel oil separator?
Drive clutch slipping.
Valve in the outlet line incorrectly positioned.
Broken water seal.
High fuel oil temperature.
What do the letters "TPC" stand for?
Tonnes per Centimetre.
Tipping Centre.
Trim per Centimetre.
Tonnes per Centimetre Immersion.
A new gasket has been fitted to the manhole cover of a ballast tank. Which of the options given would be a suitable test that the new gasket is correctly fitted?
Carry out a hose test on the manhole cover.
Carry out an air pressure test on the ballast tank.
Fill the tank with water up to capacity.
Fill the tank with water until it overflows through the air vent.
Prior to commence loading, in what way would you best ensure a smooth technical operation?
Test/check the COW system?
Test/check the cargo pumps?
Test/check cargo pipes?
All the mentioned alternatives?
What is the main purpose of routine testing of cooling water?
To ensure that the proper residuals of treatment chemicals, as specified, are maintained at all times
To detect dissolved oxygen in the water
To measure the pH - value of the water
To detect presence of contaminants in the water
Under international regulations what must be frequently done during a cargo watch on a bulk carrier?
The number of stevedores working at each hatch must be recorded
The quantity of cargo loaded or discharged must be recorded
Weather conditions must be recorded
The vessel's draughts must be recorded
On the figure 4 possible definitions of the term "CENTRE LINE" are given. Which one is the correct one?
Centre line is given by D on the figure
Centre line is given by B on the figure
Centre line is given by A on the figure
Centre line is given by C on the figure
A CBT-tanker arrives at the loading port in ballast condition. What is today’s normal procedure for this type of vessel when loading?
Deballasting and loading simultaneously.
The vessel’s decision.
Pump out all the ballast before commencing loading.
Load a part of the cargo, de-ballast and resume loading.
What gives the condenser pressure in a 1 stage direct cooling plant?
It is the seawater temperature that gives the condenser pressure in a 1 stage direct cooling plant.
It is the cargo temperature in the cargo tank that gives the condenser pressure in a 1 stage direct cooling plant.
It is the seawater flow in the condenser that gives the condenser pressure in a 1 stage direct cooling plant.
It is the cargo vapour temperature that gives the condenser pressure in a 1 stage direct cooling plant.
Select the option which best completes the following statement. "When carrying out repairs to damaged hatch gratings it is best to use…
…galvanised crosshead screws."
…galvanised nails."
…mild steel nails."
…mild steel screws."
What collective culinary term is given to the internal organs of a butchered animal, such as the heart, kidneys, liver, tripe, etc?
Glands.
Offal.
Intestines.
Oval.
Your vessel is entering a tropical area and high humidity is expected. To avoid condensation in the main engine's air cooler, it is recommended to:
Decrease the air temperature so proper draining can be achieved from the air cooler
Increase scavenging air temperature to above dew point
Reduce speed.
Operate the engine with slightly open drain cocks, scavenging to get rid of the water
What do Tonnes per Centimeter immersion (TPC), Moment to Change Trim by one Centimeter (MCTC) and Longitudinal Centre of Floatation (LCF) have in common?
They vary with changes in displacement
They vary with small angles of heel
They vary with changes in the shape of the waterplane
They remain unaffected by changes in displacement
For which emergency resource is it difficult to plan the best use?
passengers
company personnel
crew
emergency equipment
To whom should you report when the bow port or stern ramp is closed and secured?
The Safety Officer
The Master
The Chief Engineer
The bridge/ Officer on watch
What separating temperature do You mean is best for lub. oil.?
About 50 Centigrades.
85 - 90 Centigrades.
40 - 60 Centigrades.
60 - 80 Centigrades.
A bilge strainer is blocking up during bilge pumping operations which is causing delays as the pump frequently loses suction and has to be primed. What action should be taken to remedy the situation?
Remove the strainer plate and drill larger holes in it and replace it in the housing to avoid blockages.
Clean the strainer more frequently and clean out the bilge well at the first opportunity.
Remove the strainer plate from the housing to avoid blockage and loss of suction.
Use a portable pump to avoid blockage of the strainer.
After water-washing the turbocharger exhaust side it starts to vibrate even though it was operating normally prior to the washing procedure. What is the most likely cause of this problem?
The foundation bolts for the turbocharger are loose.
The rotor blades are damaged or the blades are not properly cleaned
Water drain for washing system is blocked allowing water to build up in the turbine casing.
The turbocharger bearings are worn out.
Where should the vehicle belonging to a disabled person be placed?
Preferably near an elevator or a place where you have easy access to the stairways
Near the stairways
In the after part of the car deck
As close to the bow door as possible to avoid any traffic jam during discharging
At what temperature do we take the Reid Vapour Pressure test?
We take the Reid Vapour Pressure (RVP) test at the temperature of 100 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 60.0 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 38.7 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 37.8 C.
Which cleaning agents for machinery space are important to use due to the oily water separators function?
Any kind of chemicals.
No kind of chemicals.
An emulsification agent.
A non-emulsifying agent with self splitting emulsifiers.
On a RoRo vessel, why is it necessary to maintain safety markings/luminous paint on pillars in ro-ro decks?
To comply with the company's standing instructions
Because it is a port state control requirement
To comply with the ship's Planned Maintenance Schedule
To prevent damage during cargo operations
The picture shows a liquid filled thermometer. Liquid filled thermometers and manometers are often installed onboard ships. What is the main purpose for the liquid filling of such pointer instruments?
Keep the rear side of the front glass clean
Avoid water penetration from outside
Reduce mechanical wear on the internal parts caused by vibration
Compensating for changes in ambient temperature
"…a ship… …intended to transport products with appreciably severe environmental and safety hazards which require significant preventative measures to preclude escape of such cargo. Usually the ship is of double-hull construction, with a variety of tank sizes / capacities." What is this the definition of?
A chemical tanker for the purposes of the 1996 IMO directive MEPC/2.12 circ. on "Mandatory Reporting Requirements for Ships Carrying Dangerous or Polluting Goods".
A type I chemical tanker as per the IBC Code.
A type II chemical tanker, as per the IBC Code.
A parcel chemical tanker as per the IACS Construction Regulations.
On the figure there are four (4) possible definitions of the term "AFT" shown. Which one is the correct one?
Aft is defined as B on the figure
Aft is defined as D on the figure
Aft is defined as C on the figure
Aft is defined as A on the figure
In what kind of atmosphere should tank washing be carried out onboard vessels with inert-gas system?
Steamed to a humidity of at least 75%
After an electric fan have been blowing fresh air into the tank for a minimum time of one hour.
After the bottom has been covered with salt water.
Inerted to less than 8% oxygen(IMO).
In describing oil cargoes, what is "sour crude"?
A crude oil from West Africa
A petroleum product which reacts with water during tank-washing, leading to a distinctive odour about the tank deck
A crude oil cargo which has left substantial residues in the bottom of the tank after discharge
A term used to describe crude oil or products containing appreciable amounts of hydrogen sulphide and / or mercaptans
What do you understand by: Bitter end?
Bitter end means: a foul taste at the end of a meal
Bitter end means: to the very last moment
Bitter end means: the toggled end of a lifeboat painter
Bitter end means: the end link of an anchor cable that is secured within the chain locker
Why do cargo tanks on a chemical tanker commonly have their own individual pipelines and cargo pumps?
To permit faster loading and discharging rates.
To reduce the chances of cross contamination.
To simplify the piping layout.
To allow more dangerous cargoes to be carried.
You are receiving stores, including some cartons of frozen seafood. You spot a watermark around a particular carton. What might this be a sign of?
That the produce has been allowed to partially thaw at some stage during trans-shipment
That the carton has been previously used to transport another product
That the fish inside the carton are oily
That the carton has been standing in the open air and mositure has been absorbed into the packaging
All heat burns should be
Covered with Gauze or bandage immediately
Applied with soothing lotion as soon as possible
Treated by the doctor only
Cooled as quickly as possible with running cold water for at least 10 minutes
The engine is started by compressed air. Which one of the following statements is correct ?
If we have lost the starting air pressure, we can use a pressurized oxygen bottle from the welding equipment for an emergency start of the engine.
A heavily leaking starting air valve can cause an explosion in the starting air pipe system.
The starting air shall always contain some water.
If the engine does not turn when we open for the starting air, we can use the turning bar together with the starting air to get the engine out of a deadlock position.
What stowage factors should be taken into account when planning the loading of cars, in a pure car carrier?
Overhead clearances
The amount of dunnage to be used
Cargo characteristics
Longitudinal and athwartships distances between the cars
What is of utmost concern during a loaded passage in winter across the North Atlantic
Parametric Rolling
The added weight of icing on container stacks
Temperature differential between air and seawater, that may affect the shell plating
The presence of icebergs
What kind of safety protection is to be weared during a mooring operation?
Safety shoes and boiler suit.
No particular.
Gloves and helmet.
Helmet, safety shoes, gloves and protecting cloths.
In what way can de-humidified air be made more efficient for the drying of cargo tanks?
By pressurizing it.
By heating it.
By adding 10% by volume inert gas to it.
By cooling it.
According to "Summary of minimum requirements" in the IGC Code, what is the requirement for vapour detection for methane (LNG) cargoes?
Toxic vapour detection.
Flammable and toxic detection.
Flammable vapour detection.
Oxygen analyser.
What must be ensured prior to opening side-rolling hatch covers of a bulk carrier?
Hatch rollers are turning freely
Cross wedges have been removed
The wheels should have been raised up to the wheel track
Pot lifts are working
To which of the following are the Hague-Visby rules applicable?
Carriage of animals/livestock
Charter parties incorporating a Clause Paramount
Cargoes stated as being carried on deck
Contracts of carriage not evidenced by a bill of lading
During inspection and calibration of one unit, you observe the situation shown. The conclusion is clover leafing. The main engine uses high grade TBN cylinder oil. What do you have to do in order to reduce wear?
Contact engine maker for advice.
Increase the jacket cooling water temperature to avoid the sulfur dew point
Decrease jacket cooling water temperature to avoid heat stress
Increase cylinder oil consumption to neutralize the sulfur
A temperature control system is exhibiting hysteresis. Checks on all of the system components show that they are functioning correctly. Which of the changes/modifications given in the options is most likely to correct this problem?
Fit a valve positioner to the system.
Fit a new temperature sensor with a narrower temperature range.
Increase the pressure of the air supply to the controller.
Slacken off the control valve gland.
For what purpose do we have booster pumps on the cargo discharge line onboard gas carriers?
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge pressure and reduce the cargo temperature.
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge line pressure above shore back pressure.
On gas carriers we have booster pumps on the cargo discharge line to easily reduce the flow and pressure to shore line.
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge rate to shore.
What would affect the proper functioning of a bridge fitting?
Pitting
A fully extended spindle
Lack of grease
Buckling
Some spaces and zones on a liquefied gas carrier are classed as gas-dangerous as it is likely that they may contain flammable vapour and do not have venting arrangements to prevent this. What is the designation used for the other spaces and zones on liquefied gas carriers?
Gas-safe.
Vapour-free.
Gas-free
Gas-less
On the figure 4 possible definitions of the term "AIR DRAUGHT" are given. Which one is the correct one?
Air draught is given by A on the figure
Air draught is given by D on the figure
Air draught is given by C on the figure
Air draught is given by B on the figure
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.
What could cause engine oil to get a "Milky" colour?
Fuel contamination.
The oil is too cold.
Overheating.
Water contamination.
A seawater pipe is holed due to corrosion causing frequent bilge alarms. Which of the given temporary repair methods would be the preferred option to remedy the problem until the pipe can be replaced?
Cover all of the affected area with fibre glass tape and resin/fibre glass mixture.
Drive a steel taper pin into the hole to seal it.
Cover the hole with rubber insertion held in place with a jubilee clip.
Wrap duct tape around the pipe in way of the hole.
What basic information do we get from the pump system curve?
We get information about the pump’s suction height and liquid flow.
We get information about the pump’s liquid flow.
We get information about the pump’s lifting height and liquid flow.
We get information about the pump’s ampere, delivery pressure and suction height.
On a Container vessel, where should containers containing infectious substances be stowed?
In a position separated by a complete compartment or hold from living quarters
On deck away from the accommodation
Under deck
On deck abaft the accommodation
On a Container vessel, with regard to raised deck sockets, what must be ensured prior to commencing cargo operations?
They must be clean and free of internal debris
They must be greased
They must be ready to secure the turnbuckles
They must be well painted
What is the time limit for abandonment of ro-ro passenger ships?
2 hours from the time the abandon ship signal is given
15 minutes from the time the abandon ship signal is given
30 minutes from the time the abandon ship signal is given
There is no time limit
In which situation might you have to use non-verbal communication with passengers?
There is an explosion in the cargo hold.
You are outside in a severe storm.
The ship's electrical system has failed.
The ship's communication system is not working.
When starting three phase induction motors which of the following starting methods will immediately apply rated voltage to the machine?
Soft starter
Star Delta
Direct on Line
Auto - transformer
What special requirements applies to fire alarm signalling systems in passenger ships
Remote control of fire doors and reactivation of ventilation
Same requirements for Fire alarm systems applies to all ships
Centralized in a continuously manned control station with remote control of fire doors, Indication of open or closed fire doors
Fail safe, Centralized in a continuously manned control station, Remote control of fire doors, Indication of open or closed fire doors, Reactivation of ventilation, Detector status, Back up powered
How to prevent liquid from getting into the cargo compressor?
By checking the pressure in the vapour line between the cargo tank and the cargo compressor.
By using a liquid condenser on the vapour line between the cargo tank and the compressor.
By checking the temperature on the vapour line between the cargo tank and the cargo compressor.
By using a liquid receiver on the vapour line between the cargo tank and the cargo compressor.
How do you express the accuracy of an instrument
In % of full scale and to least significant digit
In % of gauge readings and to least significant digit
In % of deviation and to least significant digit
In % of range and to least significant digit
How often should boiler water tests be carried out on a steam boiler?
Every hour.
Every day.
Every fortnight.
Every week.
In a distress situation, how many times or for how long should the emergency alarm signal be sounded?
3 times
3 minutes
Until the signal "risk is over" or the order "abandon ship" is given
Until all crew members and passengers have reported to their respective muster stations
How many rocket parachute flares are carried in each lifeboat?
4
12
6
Nil
You have abandoned ship in a liferaft. Which of the following actions should you take?
Organize a lookout system
Organize a lookout system and join up with other survival craft if possible. You should also stream the sea anchor
Start paddling in the direction of the nearest land
Join up with any other survival craft and stream the sea anchor
On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first?
Get the nearest fire extinguisher and then open the door to see what the situation is.
As most people are sleeping, call a friend and ask him to assist in putting out the fire.
Take a look inside the cabin to see what the situation is.
Activate the nearest fire alarm button and advise bridge of the location of the fire.
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.