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Home Online tests CES Chemical tanker Deck Support Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
Online testing: Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
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What are the advantages of having mooring wires stowed on self-stowing "split drum" winches?
Increased brake holding capacity due to the ability to keep the paid out wire in a single layer on the drum
Less chance of the wire becoming jammed on the reel
All the listed alternatives answers
No crushing of the wires
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
How is shallow water effect felt in a vessel?
The vessel has a tendency to turn to port (right turning propeller)
The vessel has a tendency to turn to starboard (left turning propeller)
The vessel responds very quickly to the rudder
The vessel becomes sluggish in responding to the rudder
What should each manufacturer of cargo tank coatings issue ?
A information guide stating type, when and how many microns of coating applied.
A resistance guide stating which chemicals are compatible with the coating.
A information guide stating how many microns of coating applied.
A resistance guide stating which poisonous vapours are compatible with the coating.
Which electronic component does this graphical symbol represent?
Diode
Transistor
Silicon controlled rectifier
Tunnel diode
Which international regulations govern the disposal of waste material, including galley waste, from ships?
Chapter II, SOLAS 1974.
The Industry Best Practise Guide for Restaurant Management.
Annex V, MARPOL 73/78.
Section III, ISPS Code.
Checking the lubricating oil sump level of the generators is one of the engine watch ratings regular duties on a particular vessel. During the check it is noticed that the oil level is unexpectedly below the minimum mark on the dip stick. What action should be taken?
The rating should fill the sump to above the operating level in case there is a leak and the oil level drops too low before the next check.
The rating should stop the generator immediately.
The rating should just fill the sump back to the normal operating level.
The rating should fill the sump to normal operating level and immediately inform the engineer on watch.
When a container is damaged en route, who should be asked to attend on board at the next port?
A surveyor representing the vessel’s P. & I. Club
A surveyor representing the vessel’s hull & machinery underwriters
The classification society surveyor
A surveyor representing the consignee
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.
Under the IMDG code what class is assigned to a Fumigated Container?
Class 8
Class 9
Class 5
Class 6
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 would you suspect has happened if the lubricating oil for an air compressor has a milky white appearance?
Water contamination of the oil.
Wrong grade of oil has been used.
Oil temperature has been too high.
Air contamination of the oil.
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"
What is a Marine Evacuation System?
Liferafts supported by Fast Rescue Boats and Lifeboats
Evacuation Chute(s)/Slide(s) and Liferafts
Helicopter evacuation
Assistance from other ships
If all indications are that a cargo has been received without damages, irregularities or short shipment and the phrase "apparent good order and condition" are entered on the Bill of Lading, what type of Bill is this said to be?
A clean Billl of Lading.
An endorsed Bill of Lading.
A Due Title Bill of Lading.
A Bill of Lading completed for shipment.
If a boiler is smoking “black smoke” a possible cause can be
Too little combustion air
Fuel oil temperature too low
Dirty burners
All alternatives
The diagram shows a thyristor (SCR) with a Resistor and Capacitor (R and C). The RC network shown, performs which of the following applications?
Divert fast voltage spikes which may lead to uncontrolled switch on.
Provide voltage smoothing for SCR power supply.
Assist SCR switch on.
Allow bypass route for ac signals.
Prior to ordering stores for any department;
The store inventory should be checked so that you order only the items required
Consult the ISSA catalogue to ascertain what stores are available for ordering
Ask the departmental head for a list of store to be ordered
Consult the ISSA catalogue and order whatever is available but not on board
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
You are alongside, loading several grades of chemicals, some with an explosion and flammability hazard. It is late evening. Whilst moving some equipment with the manifold crane, you accidently hit one of the deck flood-lights, smashing the glass cover and the light bulb inside. What will you do?
Replace the light bulb with one taken from another area. Temporarily tape back the pieces of the cover, making as good a seal as possible, without losing too much of the light. Inform the Duty Officer at the end of the watch.
Say nothing. Inform the Electrician in the morning.
Report the accident to the Duty Officer immediately. Switch off the power to the light concerned. Place an isolation notice over the switch to prevent anyone else operating the switch. Advise your relief at the end of the watch.
Go and find a portable light with a cable. Rig and secure it as close as possible to the damaged flood-light. Inform the Electrician when you next see him.
What medium is used to calibrate the ODME?
Fresh water.
Gasoline.
Sea water.
Crude oil.
Too high exhaust temperature in one cylinder becomes because of:
Charge air temperature is too high.
Water leakage in the cylinder.
Too much lubricating oil in the cylinder.
Injection valve opening pressure is too low.
Many large, slow speed diesel engines have direct oil cooling of the piston crowns provided. An automatic slow down and alarm are sometimes fitted to protect against failure of this system. Which parameter is usually used to initiate this slow down?
Low oil pressure in the piston crown cooling space.
Low flow or no flow in the cooling oil return line.
High temperature of the piston crown.
Low pressure in the cooling oil return line.
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
On a Container vessel, when will a full container experience a force of 100% of its weight?
When the ship is heaving
When the ship is rolling and pitching
When the ship is rolling
When the ship is pitching
Depending on density or API, an error measurement of 0.1 degree Fahrenheit in a tank containing 50,000 cubic metres (314,491 barrels) of oil will result in which of the following volumes?
35 cubic metres (220 barrels).
25 cubic metres (157 barrels).
7 cubic metres (44 barrels).
16.5 cubic metres (104 barrels).
The diagram shows a the symbol for a component from a hydraulic circuit. What component does it represent?
A check valve.
A throttle valve.
A pressure relief valve.
A directional control valve.
Which of the following is a summary of the tank cleaning requirements for a category "X" substance on a chemical tanker constructed after 1st January 2007?
Strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.
Prewash for solidifying or high viscosity substances / strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.
Prewash / strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.
Prewash / strip to 100 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.
What does the acronym MARVS stand for in relation to liquefied gas carriers?
Maximum Allowed Relief Valve Setting.
Maximum Actual Relief Valve Setting.
Minimum Allowed Relief Valve Setting.
Maximum Automatic Relief Valve Setting.
You are an assistant cook, working on a large passenger ferry. You have a boil on your left wrist, which has become infected. What must you do?
Take two paracetamol and cover the boil with a small flesh-coloured band-aid.
Don't tell anyone about it, wear a long sleeved jacket and carry on working.
Report the condition to your superior, obtain medical assistance, avoid handling foodstuffs until the skin has healed.
Wear a cotton glove on your left hand when carrying any raw or fresh foodstuffs.
An indicator card from a cylinder of a slow speed diesel engine shows a high maximum pressure occuring earlier in the cycle than normal with a normal compression pressure. From the options given, which action is most likely to identify the cause of the problem?
Check if the fuel injection valve is partly blocked.
Check if the fuel injection pump timing is correct.
Check if the fuel viscosity and temperature are correct.
Check if the fuel filters are blocked.
A piston rod retaining nut needs to be tightened during maintenance on the main engine. Which of the given methods should be used to ensure it does not come loose in service?
Tighten it 10% more than the manufacturer's recommendation using a torque wrench.
Tighten it to the manufacturer's recommendations using a torque wrench.
Tighten it as tight as possible using a spanner and extension pipe.
Tighten it as tight as possible using a flogging spanner and a hammer.
Why is the inlet to the slop tank often directed towards the bulkhead (see the illustration) ?
None of the mentioned
To reduce the settling time
To avoid build-up of static electricity, which may cause explosion
To avoid too much agitation of the oily water in the tank
When handling packaging materials consisting of wooden elements why is it necessary to comply with the International Standards for Phytosanitary Measures (ISPM) Code?
Because of legal requirements in countries that have ratified the ISPM Code
Because the wooden elements may be second-hand sanitation materials
Because the wooden elements may contain pests or other invasive species
Because the wooden elements may be mouldy
Searches are often triggered by:
Lost baggage.
News stories of stowaways.
The receipt of a shipment of damaged stores.
An increase in security level by the Flag State.
Which of these statements about drug smuggling is true?
"The preventative measures you incorporate into your ship’s security plan should be exhaustive, regardless of the level of threat identified by your ship’s security assessment."
The risks to ships are not restricted to specific areas or trading routes.
Drugs are difficult to conceal onboard a ship.
"Drug smuggling is only a problem in certain ports, so only ships sailing in those ports need to implement preventative measures."
Which of the following would normally only be found in cargo holds which can also be used for ballast on a Bulk Carrier?
Permanently fitted dunnage
Light reflective paint coatings and fixed lighting systems
Bilges systems fitted with two way valves
Sacrificial anodes and water resistant expoxy paint coatings
What is the purpose of the Ship Security Plan?
Outline the organizational structure for the ship.
Protect your ship from risks posed by security threats or incidents.
Outline specific measures for your ship to move from security level 1 to 2 and from 2 to 3.
Detail the duties of shipboard personnel assigned security responsibilities.
Master of every ship must provide:
Facilities to conduct training whenever required by the training officer
Proper rest to the crew after each training programme
the training during crews working hours only
A link between the shipboard training officer and the company training officer ashore
You are on a chemical tanker, where the duty officer usually controls the opertaion of the pumps and valves from a control room. You are in radio contact with him. The ship has just started to discharge several grades of chemicals to shore. Suddenly, the jettyman shouts across to you to "STOP". Which of the following will you do?
Inform the jettyman that you will check with the duty officer first.
It is important to keep the cargo discharge going, so you will ask the duty officer to slow the pumps to minimum speed while you find out what is happening.
Immediately repeat the request on the radio to the duty officer, then proceed to the manifold and stand-by for further instructions.
Ignore him, because you take your instructions only from the duty officer.
The wheatstone resistance bridge is often used for measuring resistances in, forexample, Pt 100 temperature sensors or strain gauges. This figure shows such a bridge. Under what conditions will the bridge be balanced? i.e. the current through the meter i(m) = 0.
R1 / R4 = R2 / R3
R1 / R2 = R3 / R4
R1+ R3 = R2+ R4
R1 * R3 = R2 * R4
On a Container vessel, what should a crew member do if a tank container on deck is found with a leaking valve?
Close the leaking valve
Wash away the leaking contents immediately
Raise an alarm
Report it immediately to the duty officer
Fluid-driven eductors (as commonly found on crude oil tankers), operate on a principle known as Bernoulli's principle. What does that state?
The increase in pressure at the eductor inlet is inversely proportional to the decrease in pressure as measured at the discharge orifice.
The volume of a fluid increases as the pressure in it decreases.
The discharge rate is inversely proportional to the pressure applied in the drive inlet.
The speed of a moving fluid increases as the pressure in the fluid decreases.
On a General Cargo Vessel, what should a cargo lashing plan comply with?
The cargo securing manual
Master's instructions
Charterers? instructions
Shipper's instructions
Which of the valve types given in the options is most likely to be used in the cargo loading lines of a liquefied gas carrier?
Screw down non-return valves.
Self closing flap valves.
Ball or butterfly valves.
Needle valves.
A very dusty cargo is to be loaded on a bulk carrier; what precautions on deck should be included?
No access allowed onto main deck
Decks washed down regularly
All cranes, deck houses and storerooms fully closed down to prevent entry of dust
No extra precautions need to be taken
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.?
Locate them in large cabins to ease their stay.
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.
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.
A 2 term controller is used to control the fuel oil temperature for a thermal oil system used for heating services. The control is very unstable with the measured value hunting constantly. Select the most probable cause of this problem from the options given.
Integral action reset time is set too slow.
Proportional band width is set too wide.
Proportional band width is set too narrow.
Integral action reset time is set too fast.
What must be specified when ordering gas detection equipment?
That the instrument complies with international regulations
That the instrument is suited for its purpose of application
That the instrument can measure flammable atmospheres
That the instrument can measure methane and hydrogen when used in low-oxygen atmospheres
A General Cargo vessel has 50 tonne SWL heavy lift derrick; a load of 48 tonnes is to be loaded ;the lifting gear of slings and spreader bar weighs 4 tonnes ; which of the following statements is correct?
The load cannot be loaded because the combined weight of the load and the lifting gear must at least 10% less than the SWL of the derrick
The load cannot be loaded because the combined weight of the load and the lifting gear will exceed the SWL by two tonnes
The load can be loaded because the load itself is less than the SWL of the derrick
The load can be loaded because the SWL can sometimes be exceeded by small amounts in cargo operations
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.
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.
What is the maximum period between the sampling/testing of the moisture content of a solid bulk cargo and the loading of that cargo into a bulk carrier?
It must always be conducted immediately before loading
A test is not required each time of loading
Testing must be carried out on a random sampling basis.
A maximum for seven (7) days, when there has been no change in the moisture content due to rain or snow
How often shall watertight doors in main transverse bulkheads which is in use at sea be operated (tested)?
Every two weeks
Every month
Daily
Weekly
Generator 1 and 2 are initially working in parallel. Prime-mover 2 suffers a total fuel loss. The likely outcome is:
Generatorset 2 trips on reverse speed
No.1 machine overspeeds and trips out on overload
No.2 generator trips on reverse power
No.1 machine overloads and trips out on overspeed
What advice would a harbour pilot give the Master?
A harbour pilot would advise the Master to have the steering gear tested
A harbour pilot would advise the Master to single up to one line and back spring, fore and aft
A harbour pilot would advise the Master to request port control for permission to leave the berth
A harbour pilot would advise the Master to ensure that the crew is on stand-by
A cargo pumproom must be mechanically ventilated. What is the minimum number of atmosphere changes per hour that such a system must achieve?
10 changes per hour.
There is no specified minimum number of changes, provided it is running continuously throughout any cargo operation.
30 changes per hour.
20 changes per hour.
What will immediately diminish the function of a dovetail fitting?
Signs of corrosion of the adjacent deck plating
Rust stains around the welded seam
Signs of pitting
Chamfered or waved edges
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
Clay slurry, coal slurry, dextrose solution and molasses. In which MARPOL product category are these substances classified under the revision that came into effect on 1st January 2007?
"Y"
"Z"
"OS" (Other substances)
"X"
Electric ozone generators are sometimes used to remove residual odours from refrigerated cargo spaces. Which of the options given is the additional action required to ensure the operation is successful?
The cargo space should be cooled down using the refrigeration plant.
The cargo space should be fumigated.
The fans should be run continuously in the cargo space.
The source of the odour must be located and removed.
When talking about the properties of an oil cargo, what does "flammable" mean?
When it catches fire, flames may be seen, as well as smoke.
That it does not need an external ignition source to cause it to burn. It will do so by itself.
That it is not capable of burning.
That it is capable of being ignited and of burning.
The electric motor on one of your centrifugal pumps has for a period of time gradually been running at lower and lower Amp-load. The pump is still supplying water, but the pressure is reduced. Which of the below alternatives is probably the reason?
The pump is running at lower speed due to short circuit in the electric motor.
Inner diameter of impeller is bigger due to cavitations, or outer diameter reduced by erosion.
The pump has been more effective because the suction strainer has been removed.
The pump has suction from many places at the same time.
Carbon dioxide, CO2, can solidify and form dry ice at low temperatures. What is the solidifying temperature of CO2?
approximately minus 87.5 C
approximately minus 78.5 C
approximately minus 60.5 C
approximately minus 30.5 C
To prevent inadvertent leaks, bunker manifold not in use should:
Have blank flanges fitted and tightened with some bolts in place
Have blank flanges fitted with gaskets and tightened with all bolts in place
Have blank flanges fitted with gaskets and tightened with some bolts in place
Have blank flanges fitted and tightened with all bolts in place
When testing boiler water, should the sample be:
As hot as possible.
At lowest possible temperature.
At room temperature.
It makes no difference.
When overhauling a medium speed diesel engine cylinder cover part of the work involves inspection of the springs for the inlet and exhaust valves. Which of the options given would be the normal inspection method used?
Visual inspection and measurement of free length.
Visual inspection and measurement of spring compression under a known load.
Inspection using dye penetrant and measurement of spring compression under a known load.
Inspection with ultra sound and measurement of free length.
The fire control draft on board is called the «safety plan» and shall be posted onboard. In port, a copy of this plan shall in addition be available from somewhere else. Where shall this copy be available?
Handed over to the surveyors.
At the gangway.
In the engine control room
On the terminal
All passenger ships are divided into vertical ’zones’. What is the purpose of this?
This is firezones which can be divided from eachother with firedoors. If a fire start in one zone, all firedoors in front and aft of the fire will be closed from the bridge to stop the smoke and fire from spreading.
Vertical zones are separated with firedoors which will be closed automatically when the firealarm start.
There is one fireteam in each zone
All vertical zones are separated with waterthight doors, which will be closed in the case of a grounding, etc.
The high level water ingress alarm in number 1 hold of a Bulk Carrier activates in bad weather at sea; what would be the actions of a prudent Master?
The alarms could be faulty and should be ignored
Investigate when the weather improves
Sound general alarm, muster ships crew and transmit a Mayday call and message.
Assess all spaces for signs of damage if weather conditions permit
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.
How are the surfaces of ro-ro vehicle decks and ramps treated?
With non-slip tapes
With non-skid paints
With anti-fouling paints
With rubber-based paints
The fuel consumption for the main engine is calculated using the readings from the supply and return flow meters which are of the positive displacement type. When compared to the quantities calculated from tank soundings and calibration tables and indicated on the contents gauges the consumption appears consistently high. Which of the options given is the most likely cause of this discrepancy?
The supply flow meter is giving too high a reading due to internal wear.
The tank calibration tables are incorrect.
The tank contents gauges are calibrated for the wrong fuel type.
The return flow meter is giving a low reading due to internal wear.
What action should the Master of a General cargo vessel take with a fishmeal cargo, which is self-heating and liable to spontaneous combustion?
Follow guidance in IMO Bulk Cargo Code or IMSBC) and probably declare a port of refuge
Boundary cool only and continue on voyage
Open hatch covers to find source of fire
Fight fire with water
During the cycle of a four stroke diesel engine there is a load reversal on the bottom end bearing when the load transfers from the upper part of the bearing to the lower part. What is the main cause of this load reversal on a modern, turbocharged, medium speed diesel engine?
The light alloy materials used for the piston skirt.
The lack of gas load to oppose the inertial forces generated during the exhaust stroke.
The inertial forces generated during the upward strokes of the piston (compression and exhaust strokes).
The suction effect on the piston during the air intake (induction) stroke.
Which food group contains the most calcium per 100 grams of edible product?
Vegetables
Dairy products
Meat
Fish
After starting a freon compressor, how long should you wait before opening the oil separator return valve?
Open the valve immediately.
One minute.
I do not know.
After the separator shell has warmed up.
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.
Ro-ro passenger ships shall either carry automatically self-righting liferafts or canopied reversible liferafts. What does it mean that a liferaft is automatically self-righting?
The liferaft will automatically turn back into an upright position when it is empty of people
It means the same as self-righting lifeboats
One person can manage to turn the liferaft back into an upright position
The liferaft will automatically turn back into an upright position when it is fully loaded with people
What means of communication shall be provided to each member of the fire patrol?
A two-way portable radio
A mobile telephone
Telephones in public spaces
Emergency telephones and Public Address system
What are safety cones used for on a RoRo vessel,?
Guiding vehicles while parking on board
Guiding vehicles onto and off the loading ramp
All of the alternatives
Vibration analysis is often used as a conditioning monitoring tool onboard ship as part of the approved planned maintenance system. Many vibration measuring instruments are fitted with a harmonic filter/analyser. How would these filters normally be used during vibration measurement on a centrifugal pump?
To block out any noise or vibration from the surrounding engine room.
To isolate a single frequency of vibration associated with one of the pumps components.
To sum up all the harmonics of a base frequency to give total vibration for all of the pump's components simultaneously.
To generate an audible sound signal at the same frequency and amplitude as the vibration.
Which of the following insulation materials that are used onboard gas carriers has the highest diffusion resistance?
Mineral wool.
Polyurethane foam.
Perlite.
Air.
It is necessary, prior to loading a refrigerated cargo on a conventional reefer vessel, to prove that the hold bilges are clear and that the bilge system is functioning correctly. Which of the cargo types given in the options would be expected to produce the most water during a voyage?
A cargo of fruit loaded at field temperature.
A cargo of fruit loaded pre-cooled.
A cargo of hard frozen perishable goods.
A cargo of chilled meat.
Tank top in engine room has a high quantity of oil residues floating around. When discovered, what action should be taken?
Start the fire pump.
Apply foam to the tank top to minimise the risk of fire.
Notify Ch.Eng., find cause of leakage, remedy the leakage and then immediately start cleaning of the tank top.
Open the overboard valve and start the bilge pump.
What kind of damages do steel coils sustain?
Chemical reactions between the steel banding and outer envelope
Crushing and distortion
Telescoping
Tearing
Apart from steering the helmsman should also:
Regularly check the gyro against the magnetic compass
Keep a good lookout
Regularly check the speed
Check the visibility
In the chemical trade the acceptable means of cargo line segregation in case of two non-compatible products is:
By double blank flanges with a drain between them?
By double valve segregation using sluice valves only?
By double valve segregation?
By a single blank flange?
The engine room is equipped with regular fire hoses and nozzles. What is important to observe when using water as an extinguisant in the engine room?
To reduce the negative effect of water in an engine room, the spraying function to be used.The spray function will also give the personnel operating the fire hose good shelter against heat.
All the mentioned alternatives.
Water has a clear limitation in fighting an oil fire.
Water may short circuit electrical installation and may be a threat to the personnel operating the firehose as well as to electrical equipment itself.
Which of the following are frequent causes of fires in accommodation?
Covering of electric fires with blankets
1Smoking in bed. 2 Covering of electric fires with blankets. 3 Overloading electric plugs.
Overloading electric plugs
Smoking in bed
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