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*Which of the following requirements applies to a "C class" bulkhead?
It must be constructed of approved non-combustible materials
A specimen of that bulkhead must have been submitted to a standard fire test
It must be capable of preventing the passage of flame till the end of the first half hour of the standard fire test
All the answers are good
Apart from red, what other colour is frequently used for a CO2 extinguisher?
Yellow
Green
Black
Light blue
*How long does it take for a fixed low expansion foam fire-extinguishing system of an engine room to discharge a 15 cm thick layer of foam on the largest single area over which oil fuel is liable to spread?
Less than 10 min
you cannot find such a system in the engine room
Less than 2 min
Less than 5 min
Which of the following types of fire extinguishers must be found in an engine room containing an internal combustion engine ?
All of the mentioned must be provided
At least one set of portable air-foam equipment
A sufficient number of foam type fire extinguisher of at least 45 litre capacity (or equivalent)
At least two portable foam extinguishers (or equivalent)
If you are alone and you see smoke coming from a closed cabin door. What should you do first?
As most people are sleeping, call a friend and ask him to assist in putting out the fire
Get the nearest fire extinguisher and then open the door to see what the situation is
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
If a ship in the MF-band wants to have a DSC-connection with a coast-station (no ‘distress alert’ or a test alert) the following frequencies are chosen:
TX: 2177.0 kHzRX: 2189.5 kHz
Don't know
TX: 2177.0 kHzRX: 2177.0 kHz
TX: 2189.5 kHzRX: 2177.0 kHz
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”
One of the following areas is NOT a Special Area as mentioned in MARPOL regulations regarding pollution by oil. Which is that area?
The Red Sea and The Gulf of Aden
The Gulf of Mexico
The Baltic Sea
The Mediterranean Sea
Your vessel is moored alongside in Houston, discharging oil to the terminal. During discharging your vessel is hit by an other vessel and your vessel is leaking oil into the Houston Channel. What will you as Sen.Off.Deck do?
Commence cleaning up the oil spill around the vessel by using chemicals.
Stop discharge, inform USCG and Qualified Individual.
Call for tug boats for assistance to nearest anchorage.
Continue discharging.
What would be the preferred colour to use when maintaining the paint on shell, plating, structure and bottom/tanktopp in the engine room?
Dark brown/red colour to camuflage any minor leakages and oil spills.
The same colour as machinery and equipment.
Whatever paint is available.
White or light grey to ensure all minor spills and leakages are noticed and dealt with.
What is definition on clean water?
Water with less than 15 ppm vitiation of oil
There isn’t any definition on clean water
Water with less than 45 ppm vitiation of oil
Water with less than 1 % vitiation of oil
Give the meaning of the following symbol:
lower liferaft to water
evacuation slide
davit-launched liferaft
liferaft without canopy
What is the meaning of this symbol:
embarkation station
muster station
immersion suit
direction indicator
Your vessel has been involved in a collision. As master you have to write about the accident in the log-book. In order to only write the facts in the log-book, which of the following procedures do you find most correct?
Write down the story as favourable as possible seen from your own point of view. Make sure that your log-book tells your story.
Find out from officers and crew who have been in connection with the collision, what they have seen, so that detailed and complete description of the sequence of events can be entered in the log-book.
Write continually in the log-book as soon as the accidents happen.
Write down all the facts you have collected, and also write down your own opinion about the circumstances.
How would you know how many people a lifeboat is supposed to hold ?
ask one of the deck officers
the number of persons should be clearly stated on the outside of the boats bow
no fixed number as it depends on the people's size
fill the boat up until no more space is left
*The lifebuoy not making part of quick-release arrangement must have a weight of at least:
0,5 kg
1kg
1,75 kg
2,5 kg
What is the minimum number of lifebuoys carried by a cargo vessel of more than 200 metres in length?
20
14
18
12
Which item among those below is included in the normal equipment of every liferaft ?
one searchlight which can work continuously for not less than 3 hours
one waterproof electric torch suitable for Morse signalling
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one boat-hook
Which item among those below is included in the normal equipment of every liferaft ?
one searchlight which can work continuously for not less than 3 hours
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one boat-hook
instructions on how to survive
Which one of the listed requirements regarding the stability of inflatable liferafts do not correspond to present regulations? The stability of inflatable liferafts shall be such that:
when floating in the inverted position it can be righted by one person
in the event of capsizing it will automatically attain a position providing an above water escape
it can be towed with full complement at speeds up to 3 knots
it is stable in a seaway when fully inflated and floating with the canopy uppermost
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
Fasten lifejacket belt
Secure buoy line to the ship
Fasten immersion suit belt
Fasten seat belts
During helicopter evacuation of an injured man, what course should the ship steer?
With the wind fine on the bow opposite to the helicopter operating area
Directly into the wind
With the wind astern so that the effect of the wind is reduced as much as possible
As instructed by the helicopter pilot
*Which of following items shall be included in an abandon ship drill?
Checking the lifeboat provisions and supplies
Checking the distress signal rockets and other distress signals
Checking passenger's immersion suits
operation of davits used for launching liferafts
What is the purpose of explosimeters?
Measure the amount of explosive gases in % of LEL.
Measure electric charging in the atmosphere.
Check how much time you have before an explosion.
Check the power of the explosions in a combustion engine.
Welding and burning are among the factors which give the highest risk of fire on board ships. Precaution has to be taken to avoid this risk. Which of the following safety rules may be regarded as the most important?
The welder shall have been instructed in the use of the ship's welding plant.
Only use electrodes from a well-known manufacturer.
Only holders of welding certificates shall be allowed to carry out welding on board ships.
Electric welding plants shall be controlled by a responsible engineer before use.
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
Two Fast Rescue Boats, one on each side of the ship
None providing the ship has lifeboats
One Fast Rescue Boat
Two, and at least one of the rescue boats shall be a Fast Rescue Boat
What is the main responsibility of a bridge lookout at night?
Inform the bridge of any new lights when they appear over the horizon or any other items observed which may affect the ship
Inform bridge of changing weather patterns
Inform bridge of any lights when they appear over the horizon
Inform bridge of any other ships observed, which appear to be getting closer to your own ship
To conform with "best practise", can you drive a crane and stand-by for a colleague who has entered a cargo tank at the same time?
Yes.
Normally no, but if we are in a hurry to get lots of jobs done before entering port and the Chief Mate know about it, then it is alright to do so.
No.
Yes, if I have radio contact with the man inside the tank.
What is the requirement regarding number of slop tanks on oil tankers of 70,000 tons and above delivered after 31 December 1979?
Shall be provided with at least 2 slop tanks.
Shall be provided with slop tank.
No requirement regarding number of slop tanks.
Shall be provided with sufficient number of slop tanks.
In oil tanker operations, what is understood by the term "Load On Top"?
Loading part of an oil cargo in one port, then loading the same type of cargo "on top" in a subsequent port.
Loading a new compatible cargo "on top" of the oil and water residues from a previous cargo in the sloptanks
Loading an oil cargo into the tanks tanks through hoses inserted through the tank hatches and lashed in position
Loading part of an oil cargo in one port, then loading a different type of cargo "on top" in the next loadport
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.
Commonly available on board an oil tanker, what is the industry standard Guide that describes best safety practise for tanker and terminal operations?
SOLAS 1974
STCW '95
The ISGOTT Guide
MARPOL 73/78
During inspection of a cylinder of a large slow speed diesel engine it is noted that there are hard deposits around the upper part of the piston crown above the top ring groove and also some evidence of scuffing on the liner wall. From the options given select the one which is the most likely cause of this problem.
The piston cooling is inadequate causing overheating.
The fuel oil being used has too high a sulphur and ash content.
Insufficient cylinder oil is being supplied.
Cylinder oil with TBN to great for fuel grade is being used.
When describing equipment used in oil tanker operations, what does the abbreviation "VECS" stand for?
Vapour Emission Control System.
Vapour Emission Calibration System.
Vapour Ejection Control System.
Vapour Emission Control Standard.
How many Working Environmental committee members should be elected on a ship with a crew of 13 members?
2 members.
0members
1member
5 members.
If a refrigeration system contains air, how would you remove it from the system?
Pump the system down to the condenser, continue cooling water flow until the condenser is at the same temperature as the cooling water and vent off the air from the top of the condenser.
Stop the compressor and vent the air from the crankcase.
Pump the system down to the evaporator and keep the fan running until the evaporator is at ambient temperature and vent off the air from the top of the evaporator.
Stop the compressor and undo a pipe coupling at the highest point in the system to vent off the air.
A data logger printout is being studied. It can be seen that at regular intervals the return air temperature increases significantly for short periods of time before returning to normal. What is the most likely cause of this occurrence?
Routine defrosting of the evaporator coils.
Erratic operation of the refrigeration compressor.
Response of the refrigeration plant to daily ambient warming and cooling.
Faulty operation of the control system for the refrigeration unit.
How should caterpillar crawlers stowed on hatch covers be secured?
By means of wire ropes secured to the hatch covers from all four sides of the unit
By means of wire ropes secured to the main deck from all four sides of the unit
By means of wire ropes secured to the hatch coamings
By means of wire ropes secured to the hatch covers and to the main deck from all four sides of the unit
Use of …… and …… is strictly prohibited onthe ro-ro deck, signs shall be displayed
Personal Protective Equipment and Mobile telephones
Naked lights and Smoking
Goggles and Smoking
Torches and Smoking
Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?
It is better to run the fans continuously instead of testing the atmosphere
An increased number of air changes may be required when vehicles are being loaded or unloaded, or where flammable gases or liquids are stowed in closed ro-ro spaces
It is easier for the crew, they don't have to think about starting and stopping of fans
The manufacturer of the fans recommends continuous operation to reduce maintenance cost
From the options given, choose the one most likely to result in a high exhaust gas temperature in one cylinder of a diesel engine.
The inlet and exhaust valve tappet clearance is incorrect.
Fuel injection valve opening pressure set too high.
Faulty turbo charger.
Clogged nozzle holes in the fuel injection valve.
What is the correct name of the part highlighted in the sketch?
The correct name of the part highlighted in the sketch is: Push rod
The correct name of the part highlighted in the sketch is: Camshaft
The correct name of the part highlighted in the sketch is: Crankshaft
The correct name of the part highlighted in the sketch is: Crankcase relief valve
What is the purpose of the flame scanner or 'magic eye' fitted to the burner unit of oil or gas fired steam boilers?
To check the colour of the flame.
To control the combustion air supply to the boiler.
To check that the flame is present during start up or normal operation of the burner; if not then fuel is shut off automatically.
To check the colour of the exhaust gas from the furnace.
On a Bulk Carrier, which of these cargoes is susceptible to liquefaction due to compression and/or vibration?
Urea
Iron ore concentrates
Maize
Wheat
Why is the tank washing discharge outlet located below the waterline on a chemical tanker?
So that a safe and legal rate of dilution is achieved in the wake as the ship proceeds along.
So that toxic vapours are neutralised by the layer of water above the outlet.
So that tank cleaning can be carried out without anyone noticing.
So that there is minimum resistance to the flow generated by the pumps as they discharge the washings.
On the figure 4 possible definitions of the term "AHEAD" are given. Which one is the correct one?
Ahead is given by C on the figure
Ahead is given by B on the figure
Ahead is given by A on the figure
Ahead is given by D on the figure
What name is given to the short, intial wash given to tanks that have just contained certain particularly hazxardous cargoes before the ship leaves the unloading port and where the washings are landed to shore or to a slop barge?
A mandatory customer post discharge wash.
A confirmation cycle.
A SOLAS pre-flush.
A MARPOL pre-wash.
Some oil cargoes contain high levels of a chemical called Hydrogen Sulphide, or H2S. The atmosphere on deck may be monitored if you are loading such a cargo and an alarm may sound if the level of H2S vapour around the deck becomes unsafe. Each company and terminal will have procedures, but, in general, which of the following describes the procedure that you, as a deck watchman, should follow if this happens?
Remain exactly where you are but report the alarm to the Duty officer immediately.
Put on any facemask with which you have been issued and make your way immediately into the accommodation, sealing all doors behind you. Make your way to the Cargo Control Room and report the situation.
Go to the ship's side and attract the attention of the nearest terminal operator. Inform him of the alarm and request that he attends to it immediately.
Put on any Emergency Escape Breathing Device with which you have been issued, leave the area immediately, moving in an upwind direction, report the situation to the Cargo Control Room.
Cargoes of frozen beef and chilled beef have approximate carriage temperatures of minus 18 and minus 1 degree Celsius respectively. Greater care is required when carrying chilled beef as it is more sensitive to deviations from, and requires finer control of, its recommended carriage temperature. Which option best completes the following statement? "This additional care is worthwhile because…
...carrying chilled beef is a modern innovation."
…chilled beef is healthier for consumers."
…chilled beef can be kept longer than frozen beef."
…chilled beef commands a much higher price in the market."
Tank venting systems should be designed and operated so as to ensure neither pressure nor vacuum created in cargo tanks during loading or discharging exceeds tank design parameters. A certain rate of generation of vapour during loading, sometimes termed gas evolution, is assumed. According to the IBC Code, how is that calculated?
The nominal loading rate is multiplied by a factor of 1.15
The maximum loading rate is multiplied by a factor of at least 1.25
The average anticipated loading rate is multiplied by a factor of 2.0
The calculated loading rate, assuming a litreweight of 1.2 kg/l and allowing for a friction loss of 12% per 30 metre length of unrestricted pipeline, is multiplied by a factor of 1.15 (A safety margin of 20% is additionally applied for products with a vapour pressure of greater than 1.15 mPa).
What is the purpose of an automatic trip system onboard, and how does this function?
Automatic trip is to avoid tanks being cooled too much, the trip function is often initialised by a float switch or a temperature switch.
Automatic trip is to avoid vacuum to be generated in cargo tanks.
Automatic trip is to avoid over pressurising in cargo tanks and other pressurised vessels, the trip function is often initialised by a float switch.
Automatic trip is to avoid tanks and pressurised vessels becoming overloaded, the trip function is often initialised by a float switch.
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.
The maximum current that a 15 Volt, 3 Watt Zenerdiode can handle without damage is
0.5 A
0.45 A
20 A
0.2 A
You have just completed your tank cleaning programme for a set of tanks that previously contained Toluene. What will the main hazard be when you enter the tanks for mopping and inspection?
The lower part of the tank may still be wet and slippery. You may not be able to see this from the deck.
The atmosphere inside may contain insufficient oxygen to support life, or toxic vapours, or both.
There will commonly be insufficient natural light to safely descend the access ladder.
That there may hydrocarbons present on the bulkheads.
Which Convention placed on the shipowner an obligation to exercise due diligence to make a ship seaworthy, requiring him "before and at the beginning of a voyage…to….make the ship seaworthy…and…make the holds...and all other parts of the vessel in which goods are carried, fit and safe for their reception, carriage and preservation"?
The Paris Memorandum.
The Hague-Visby Rules.
The Antwerp Convention.
The Nassau Protocol.
A General cargo vessel is due to resume loading at 0700 Local Time; start of operations is delayed due to hatch covers not being opened until 0800; what are the implications of this delay to the ships?
The charterers will be responsible for any additional costs
The shipper will bear the costs involved
A delay of this type is not important
Additional costs due to delay may be to ships account
Some refrigerated cargoes can be more easily damaged than others due to rough handling. From the options given, select the cargo which is most likely to be damaged due to the use of poor handling techniques.
Potatoes in paper sacks.
Frozen beef in cartons.
Chilled plums in cartons.
Chilled meat in cartons.
A very sensitive and valuable commodity is loaded into refrigerated container which is more than 12 years old. The container has been 'pre-tripped' with all routine maintenance having been carried out to the refrigeration plant and sensors with parts being replaced as necessary and all functions appear normal. Which aspect of using this container is most likely to cause problems during the voyage?
Degradation of the insulation due to the age of the container leading to excess heat transfer through the walls.
The accuracy of the control system of the refrigeration plant.
The age of the refrigeration plant.
The type of gas used in the refrigeration plant.
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 must the oxygen content of the atmosphere within the cargo tanks of an oil tanker be prior to loading?
It must not exceed 8% by volume.
It cannot be in excess of 12% by volume.
It must be no greater than 5% by volume.
It must be less than 10% by volume.
What can be done to minimize the reduction of GM due to free surface?
Close all watertight doors.
Reduce the number of slack tanks.
Load liquids into only one tank at a time
Load fluids only into tanks with transverse subdivision bulkheads
A walk-in refrigerator has been out of use for several weeks and needs cleaning. It has been closed for a long time because there is a suspicion that there may be a small gas leak from the cooling system. What should you do?
Hold your breath as you enter, locate the gas leak and stick a bit of tape over it.
Seek advice from ther ship's safety officer who will perform a risk assessment and advise on any precautions necessary.
Nothing special - it's only a refrigerator and everything will be OK.
Get someone to come inside the refrigerator with you.
During a ship to ship cargo transfer operation it is required that:
The main engine be on 1 hour notice.
None of the listed alternatives need be maintained.
An efficient engine room watch with the main engine on standby be maintained.
The main engine be on 1/2 hour notice, and no watch need be maintained in the Engine room.
Which statement about stress is correct?
Stress interferes with an individual's ability to respond to a threat.
An example of stress is a shipboard fire.
Individuals in a shipboard emergency experience different levels of stress.
Stress is an unusual reaction to a threatening situation.
What is the purpose of Material Safety Data Sheets?
To provide personnel in deck- and engine department with procedures for handling or working with that substance in a safe manner
To determine if the substance is flammable or not
To provide the safety officer with procedures for handling or working with that substance in a safe manner
To provide all personnel including emergency personnel with procedures for handling or working with that substance in a safe manner
Which of these types of information is considered sensitive?
Ship schematics and HR policies.
Planned maintenance schedule and emergency response procedures.
Voyage itinerary and departure and arrival times.
Way points and training records.
In a diesel engine lubrication system the circulating pump pump normally takes suction from the oil sump tank. Where does the oil pass to directly after the pump?
Main thrust bearing.
Lube oil cooler.
The engine bearings.
The lub oil purifier.
What is name of the machine shown, used to heave on the ropes during mooring and unmooring?
Winch
Crane
Windlass
Capstan
Which of these statements is incorrect with regard to the loading of bagged fishmeal?
The antioxidant should not be less than 650ppm
The fat content should be less than 15%
The antioxidant should not be less than 100ppm
The moisture content should be between 6 and 12%
The timing of the engine is delayed. The exhaust temperatures are high. How would you expect this to affect the turbocharger?
Higher air and gas temperature after turbocharger.
Surging of the turbocharger.
Decreased turbocharger revolutions.
Increased turbocharger revolutions.
The meaning of lapping a valve and valve seat is:
Machining the valve in a lathe machine.
Grind the valve against the valve seat to obtain a uniform sealing surface
Repair by welding
Adjust the overlapping of the inlet and exhaust valves
What necessary precautions should be taken before entering a tank or an enclosed space?
Use a breathing apparatus if the oxygen level is below 21%
Remember to have a colleague standing by to assist you if any problems
Bring a flashlight and put on safety shoes
Make sure that the tank/ enclosed space is gas free, ventilated and the oxygen content is measured. O2 content shall be 21% before entering the tank/ enclosed space
Is it permitted to load fully refrigerated propane directly onto a fully pressurised LPG carrier without additional conditioning of the cargo or cargo spaces?
Only if the loading rate is kept below 100m3/h.
Only if the cargo containment system is designed for temperatures of minus 48 degrees C or less.
Fully refrigerated propane can be loaded directly onto this type of vessel under any circumstances
Only if the vessel is equipped with cargo cooling plant
What is the SOLAS definition of deadweight?
Deadweight is the difference in tonnes between the displacement of a ship in water of specific gravity 1.025 and the load waterline corresponding to the assigned winter freeboard and the lightweight of the ship
Deadweight is the difference in tonnes between the displacement of a ship in water of specific gravity 1.000 and the load waterline corresponding to the assigned summer freeboard and the lightweight of the ship
Deadweight is the difference, in tonnes, between the displacement of a ship in water of specific gravity 1.025 and the load waterline corresponding to the assigned summer freeboard and the lightweight of the ship
Deadweight is the difference in tonnes between the displacement of a ship at its light and sea-going freeboards
A standard outside micrometer requires regular maintenance, including calibration, in order to ensure accuracy of measurement. How is the accuracy of this type of instrument normally checked? Select the answer from the options given.
By checking the distance between the micrometer anvil and spindle with an inside micrometer.
By measuring a standard gauge block or rod at a common temperature.
By checking the distance between micrometer anvil and spindle with an inside vernier gauge.
By trying a go/no go gauge between the micrometer anvil and spindle at maximum opening at a common temperature.
What is very important to monitor when distributing cargo?
Only bending moments
You should always ensure the ship has sufficient stabilty at all times. Cargo shall preferably be distributed evenly to avoid heavy list/ trim
Shear forces and bending moments
Only shear forces
According to the IAMSAR Manual, what is the expected survival time for a person in water of 4-10 degrees Celsius, without special protective clothing?
Less than 12 hours.
Less than 3 hours.
Less than 1 hour.
Less than 6 hours.
The brine used to salting or curing meat contains nitrites. What effect do the nitrites have on the meat?
They increase the preservation time of the meat more than rolling in solid salt crystals
They add a more natural salt taste to the meat than obtained by seasoning after cooking
They reduce boiling time
They make the meat take on a reddish colour after preparation
In most colour coding systems for kitchen knives, what colour is used only for knives used in the preparation of raw fish?
Green.
Brown.
Red.
Blue.
On a Bulk Carrier, what are hydraulic jacks used for?
Raising and lowering hatch covers panels
Raising and lowering steel pallets
Folding hatch cover panels
Opening and closing hatch covers
How are cargo holds, below the freeboard decks car carriers, segregated?
By gas-tight doors
By weather-tight doors
By water-tight doors
By air-tight doors
What is the anticipated rolling period of a ship with a large initial Transverse Metacentric Height (GM) and would there be any associated dangers to consider?
Long slow roll and no particular hazards
Short sharp period of roll associated with breaking lashings and shifting cargo
Short period of roll, but a very stable ship and no associated dangers
Long period of roll with free surface effects at a maximum.
What are the additional duties required by the Officer of the Watch when navigating in fog?
Sound fog signal, plot positions and keep a good lookout
Sound fog signal, effective radar watch reporting ship movements to Master and keep a good lookout for ships and fog signals.
All of the suggested answers
When navigating in fog the Master will take over the watch and the Officer of the Watch should follow all of his instructions.
When must side scuttles in passenger ships where the sills are below the margin line be kept closed and watertight?
When unwatched
Always during night-time
When not necessary to be kept open due to work being carried out aboard
During navigation between ports
Water hammer is a shortlasting pressure peak travelling along the pipe. How can it be avoided in a cooling water system?
Start the system with open valves and empty pipes
Start pump with closed valves
Operate valves quickly
Operate valves gradually
What indicates that lube oil has been diluted by fuel oil?
Lube oil discharging from the waste water outlet of the lube oil purifier.
A change in the lube oil pressure.
Water discharging from the waste water outlet of the lube oil purifier.
A change in the viscosity of the mixture.
You have checked the oil viscosity in an auxiliary engine with the viscosity test kit. The result shows that the viscosity is high. What will You do?
Clean the system and change the oil.
Increase the cooling water temperature for the oil.
Decrease the cooling water temperature for the oil.
Increase the lub oil pressure.
In a pump with a single impeller rotating in a case or volute form, the fluid enters the impeller axially in the center. Relative to the impeller it continues radially, and discharges around the entire impeller circumference. Is this working principle called:
Neither of the mentioned alternatives
A radial suction pump.
Positive displacement pump.
Dynamic pressure pump (or roto-dynamic pump).
What is the M.T.M. ordered to do?
Writing down the sparepart numbers is not necessary
He is ordered to zip wash the heavy oil separator
He is to dismantle and clean the lub oil separator
He is to report to the 1. Engineer before changing any spare parts
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.