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Maison Tests en ligne CES Oil tanker Deck Support Test online CES 5.1 for Deck department, Support level, Oil tanker vessel
Tests en ligne : Test online CES 5.1 for Deck department, Support level, Oil tanker vessel
Test en ligne
Description
Le test consiste en des questions aléatoires sur un sujet sélectionné.
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When cleaning cargo tanks with portable machines, how is the machine grounded?
The water jets impinging on the vessel-s structure form a pathway to ground.
Bonding wires are secured from the machine to a convenient location on deck.
The water supply hoses contain internal wires that act as conductors
The machines must maintain physical contact with the deck at the Butterworth opening.
You are Sen.Off.Deck on vessel "A" and your cargo is iron ore. The vessel is in narrow waters and you have been in a collision with vessel "B" causing your vessel to take in water. How will you act to save the vessel and the cargo?
Call main office for help
Navigate the vessel on ground as soon as possible
Call tug boats for help
Try to discharge the incoming water
Rule 12 of the International Collision Regulations prescribes the action to be taken by a sailing vessel when meeting another sailing vessel. This depends on the direction of the wind relative to each vessel. In the situation shown here, which sailing vessel (A or B) must keep out of the way of the other?
Sailing vessel B must keep out of the way of sailing vessel A.
Sailing vessel A must keep out of the way of sailing vessel B.
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
Both sailing vessels are required to take avoiding action.
Which of the following is the correct minimum carriage requirement for a ship of more than 300 gross tons and operating in area A:
1MF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB
1VHF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
1VHF RT + DSC+ DSC watch receiver – 1 NAVTEX or 1 EGC receiver – 2 or 3 VHF portable – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
1VHF RT + DSC+ DSC watch receiver – 1 or 2 SART – 1 NAVTEX or 1 EGC receiver – 1 INMARSAT A,B or C – 1 EPIRB – 1 MF RT + DSC+ DSC watch receiver
"A contractor is hired to install new navigation equipment onboard your ship while it’s berthed. For a period of time he’s left unsupervised and photographs schematics of the ship that he finds rolled up and stored in the corner of a nearby office. Later, from home, he hacks into the network and prints off information about the ship’s security procedures. Which of these information security measures would have prevented his unauthorized access?"
"Protective markings, reference checks, and passwords."
"Secure area, passwords, a firewall and a secure network."
"Firewall, protective markings, vetting and a secure network."
"Secure area, passwords, a firewall and protective markings."
What is a Marine Evacuation System?
Assistance from other ships
Helicopter evacuation
Evacuation Chute(s)/Slide(s) and Liferafts
Liferafts supported by Fast Rescue Boats and Lifeboats
You are close to the entrance to a port in thick fog. You hear the following signal. What does it mean?
That there is a vessel aground in the vicinity.
That there is a vessel at anchor in the vicinity. She is more than 100 metres in length.
That the port is closed.
That there is a vessel at anchor in the vicinity. She is less than 100 metres in length.
What should be logged when fumigating a bulk cargo?
The amount of fumigant used in each cargo hold
The time of fumigation treatment given in each cargo hold
The name of the fumigator and fumigation company
All
Why is it necessary to check for cold spots in the hold spaces of an LNG carrier during loaded voyages?
To check the efficiency of the insulation between the cargo tank and the hull.
LNG cargo containment systems frequently leak.
Because there is not normally any temperature monitoring of the hold space.
To check for signs of leakage since the very cold carriage temperatures for LNG could result in hull structural damage in the unlikely event of a leak.
When a ship is switching from ammonia to LPG virtually all traces of vapours must be removed. What is the allowable concentration of ammonia vapour in the tank prior to loading the next cargo?
Less than 20 parts per million.
Less than 5 parts per million.
Less than 50 parts per million.
Less than 100 parts per million.
What is the purpose of the "forcing vaporizer"?
To provide gas for burning in the boiler.
For initial heating in the insulating spaces.
Discharge cargo without vapour return from shore.
To displace inert gas from cargo tanks.
The muster list shall show the duties assigned to the different members of the crew. Which of the given duties do not necessarily have to be included in the muster list?
Manning of fire parties assigned to deal with fires
Clearing escape routes
Muster of passengers
Preparation and launching of survival crafts
Many modern large slow speed diesel engines used for main propulsion operate with a so called constant pressure turbocharging system. What is meant by constant pressure when used to describe such a turbocharging system?
Pressure variations in the scavenge air supply are avoided by supplementing the air supply with air from the auxiliary blowers so keeping a constant pressure across the load and speed range.
Pressure variations at the turbocharger inlet are damped out due to the large volume of the exhaust receiver and the short lengths of pipe from individual cylinders.
The exhaust pipes from groups of three cylinders are joined together before entry into the turbocharger so that the exhaust pulses from each cylinder cancel each other giving a constant inlet pressure.
The exhaust gas pressure is maintained constant by using a bypass waste gate to dump excess pressure at high engine loads.
If normal cool down rate has been complied with, what should the temperature at the primary insulation and the secondary barrier be?
-120C and -100C.
-100C and -80C.
-130C and -120C.
-140C and -130C.
On a Container vessel, what can cause large loads in lashings when containers are secured to a lashing bridge?
The lashing bridge is flexible but the hatch covers are fixed, causing the lashings to go alternately slack and tight
The lashing bridge is fixed but the hatch covers move when the ship rolls and pitches, causing the lashings to go alternately slack and tight
Due to flexibility of the hatch covers
Due to inflexibility of the lashing bridge
You have just synchronized a second alternator onto the main switchboard, and want to equally share the load between the "running" and incoming alternators. What would you do first?
Adjust voltage rheostat for the incoming alternator on the front of the switchboard
Lower the governor speed controller of the incoming alternator and increase the governor speed controller of the alternator already on the switchboard
Trip the circuit breaker of the incoming alternator and check the voltage and speed adjustments before trying again
Raise the governor speed controller of the incoming alternator and reduce the governor speed controller of the alternator already on the switchboard
What will be the probably outcome if the amplification is set to high on the controller
Nothing
The process response will be very slow
The process will oscillate and get out of control
The set-point will change
What causes shock loads in a container lashing system?
Ship torsion
Loose cargo lashings
Resonant rolling
Ship vibrations
Which of the following hazard risks generally apply to the carriage and handling of LNG and its vapours?
Flammable, Toxic and Frostbite
Flammable, Toxic and Corrosive.
Flammable, Corrosive and Frostbite.
Flammable, Asphyxia and Frostbite
Who is responsible for maintaining the vessel's structural strenght?
The Shipping Company and the Classification Society
The Shipyard
The Master
The Flag State Administration
How should wooden chopping boards be arranged after washing?
They should be placed in an oven set on a low heat, to dry them as quickly as possible.
They should be quickly wiped with a cloth and then stacked on top of one another.
Wooden chopping boards should not be washed; they should only ever be scraped and wiped with a dry cloth.
They should be placed vertically in a drying rack, in such a way that air circulates over all surfaces during drying.
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.
This graphical symbol is a logic gate. Which gate?
OR
AND
NAND
NOR
Vegetable and animal oils undergo decomposition over time, generating obnoxious and toxic vapours and depleting the oxygen in the tank. What name is given to this process?
Polymerisation.
Putrefaction.
Monoxidation.
Disintegration.
While alongside at a repair berth a new section of seawater pipe has been fabricated in a shoreside workshop from drawings supplied by the vessel. During fitting of the pipe by ship's engineers it is noted that the pipe is too short leaving a gap of about 8mm between the flange faces. What action should be taken to remedy this problem?
The pipe should be returned to the shoreside workshop for modification or to be remade to the correct dimensions.
The ships engineer's should use extra long bolts and pull the flanges together
The ship's engineers should fit extra thick joints between the flanges to fill the gap.
The ship's engineers should manufacture a spacer piece to fit the gap.
What cooling medium is normally used to cool the condenser of a fresh water generator?
Brine
Seawater
Distillate (Freshwater)
Air
Which is the "FORWARD SPRING", in the figure?
The Forward Spring is indicated by C, in the figure
The Forward Spring is indicated by D, in the figure
The Forward Spring is indicated by A, in the figure
The Forward Spring is indicated by B, in the figure
To achieve a good stow with palletised refrigerated cargo it is preferable to have long uninterrupted faces for the stow. Any pillars, access ladders or other obstructions in the cargo space can make this difficult. From the options given, select the most appropriate way of dealing with an access ladder which is obstructing the pallets to achieve a satisfactory stow.
Stow the pallets as tightly as possible around the access ladder and fill any gaps with air (dunnage) bags.
Stow the pallets as tightly as possible around the access ladder and fill any gaps with loose cartons.
Remove the access ladder and place it on top of the stowed pallets.
Stow the pallets as tightly as possible around the access ladder and then support the pallets with plywood and timber bracing.
Your vessel has a controllable pitch propeller. The engine can be started when the propeller pitch is:
25 % ahead
10 % ahead
25 % astern
Zero
When can semi-automatic twistlocks be used, under the U.S. Occupational Safety and Health Administration (OSHA) regulations?
When used to lock three empty intermodal containers that are to be lifted, one on top of the other
To secure on-deck containers in the first and last container bays
When used to lock two empty intermodal containers that are to be lifted, one on top of the other
To secure all on-deck containers
What should be on the deck immediately outside the door to a walk-in refrigerator?
Fire resistant natural fibre matting.
Easy wash plastic floor covering.
Non-slip matting.
An area marked with yellow diagonal lines.
The benefits of emergency response plans are only realized if:
survival craft are launched
escape routes are used
lifejackets are put on
the crew carries out the plans
You are to load a cargo of Cyclohexanol to tanks 2, 3 and 4 centre and 2 and 4 wing tanks. The lines to these tanks are all connected at the manifold with flexible hoses and are all capable of being isolated with the exception of 2 centre, which has therefore been designated as the last tank to load. What will you do with the other tanks as they complete loading?
Close only the tank loading valves, so that pressure remains constant around the pipeline system and flexible hoses. Continue to monitor the cargo levels in the finished tanks to ensure that the high-level alarms are not activated as the ship's trim changes.
Close only the corresponding manifold cross-over valves as the tanks finish, so that the pressure in the lines equalises with the pressures in the tanks. Re-check the ullages at the end of loading as they will have changed as the trim of the ship has changed.
Close the tank loading valves, then close the appropriate manifold cross-over valves. After a few minutes, re-open the tank loading valves and leave them like this until cargo operations are completed, to ensure they drain fully. Re-check the ullages at the end of loading and then close the tank loading valves.
Close the appropriate manifold cross-over valves and tank loading valves as each tank finishes. Continue to monitor the cargo levels in the finished tanks to ensure that the valves are not passing.
By what practical means can the upper reaches of a bulk carrier’s hold be inspected?
Standing on the Australian ladder’s upper platform
Using a deck crane
By erecting scaffolding
Using a cherrypicker
Some charters will require a reefer vessel to carry a general cargo, for example paper rolls for the manufacture of fruit cartons, on the return, 'empty' leg of a voyage. Select from the options given, the main problem associated with carrying paper rolls on a reefer vessel in this way that the deck officers should be aware of.
Paper rolls must be handled with care to avoid damage to the ends of the rolls.
Paper rolls are sensitive to wetting.
The paper rolls are heavy and this may result in overload of the decks.
The hold insulation and vent trunking can be damaged if the paper rolls are improperly secured.
What is the legal requirement in respect of Material Safety Data Sheets for cleaning chemicals that are used on chemical tankers?
There is no requirement for MSDS for cleaning chemicals. The requirement refers only to Noxious Liquid Substances carried as cargoes.
MSDS must only be supplied for cleaning chemicals that have a significant health or flammability hazard. No MSDS is required for detergents or other light, non-hazardous products.
MSDS must only be supplied for cleaning chemicals when the quantity carried of any individual product would, if used all at once, present a significant pollution hazard,
MSDS must be displayed on board for every cleaning chemical in use.
What is meant by the term 'feel over sequence' as applied to diesel engine operation following replacement of a crankshaft bearing?
Using the hand to feel for any loose fastenings or sharp edges before starting the engine.
Stop the engine after 2 hours running to check the bearing temperature by running the hand over it.
Stopping the engine to check the bearing temperature after a short period of operation and repeating this procedure at increasing running intervals.
Running the engine at low load and gradually increasing the load over a period of 12 hours.
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.
What danger is associated with damaged expanded metal gratings on loading ramps?
Vehicles’ windscreens may be damaged during cargo operations
The front and/or rear ends of vehicles may be damaged during cargo operations
Vehicles’ tyres may be damaged during cargo operations
The load density of the ramp will be affected
What is a "Bollard"?
A Bollard is a very heavy rope
A Bollard is a rope made up of several strands
A Bollard is a thick steel post to which mooring lines are secured
A Bollard is a loop in a rope
What is the purpose of an observation tank in a boiler feed system?
To check condensate returns for oil.
For adding chemicals into the boiler water.
To monitor chloride level.
To monitor the water colour.
The exhaust gas temperatures of all cylinders of a diesel engine are seen to be high. Select, from the options given, the most likely cause of this.
Poor fuel oil quality.
High wear rate in one of the fuel injection pumps.
One of the fuel cams is worn.
Insufficient cooling of the main bearings.
What gives the condenser pressure in a 1 stage direct cooling plant?
One, two and three stage piston compressors.
One, two and three stage screw compressors.
Piston, screw and centrifugal type compressors.
Oil free screw and centrifugal type compressors.
This graphical symbol is a logic gate. Which gate?
AND
OR
NOR
NAND
What is a "colander" used for?
To drain the water off food.
To stir foods during cooking.
To hold different foods together during barbequeing.
To test the temperature of food during cooking.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
50% extra
10% extra
25% extra
5% extra
Tab washers are often fitted to bolted assemblies to prevent the nuts and bolts slackening. For an assembly where the nuts are positioned at the top select the option which describes the correct method of locating the tab washers.
Bend the inner tab up against one flat of the nut and the other tab down over the edge of the component.
Bend the outer tap down over the edge of the component and leave the other tab flat against the component.
Bend the outer tap up against one flat of the nut and leave the other tab flat against the component.
Bend both tabs up against opposite flats of the nut.
A motor is protected by a thermal overcurrent relay. After tripping on overload it will not be possible to reset the overcurrent relay immediately because the:
Oil dash-pot has to be reset.
Bimetallic strips need time to cool down
Starter isolator automatically applies an interlock.
Line contactor spring has to be reset
"Part way through a profiling interview with a supplier, the package the individual is carrying arouses your suspicion. What do you do?"
Confront the individual and demand that he open the package.
Discreetly inform someone of your suspicions so he or she can get assistance.
Call for help on the radio.
Take the package and open it.
Is it required to have supplementary emergency electric lighting on board passenger ships?
No, passengers should bring their own flashlights
No, reflective marking indicates the escape routes
Yes, all passenger public spaces and alleyways shall be provided with supplementary electric lighting
Which of the following can be considered to be two of the main requirements for a paint coating for a cargo space of a General Cargo Vessel?
Low odour and heat resistant
Easy to clean and dark in colour
Light reflective and compatible with edible cargoes
Corrosion resistant and heat resistant
Liquefied natural gas (LNG) is often referred to as natural gas or marsh gas. What is another common name for LNG?
Propane.
Ethane.
Butane.
Methane.
You are commencing the loading of a cargo of Caustic Soda solution to several tanks. What precautionary measures will you take to avoid pressure shocks within the pipeline system?
The jettyman must be advised to watch for signals as you start receiving product, in case he needs to shut down in a hurry.
All valves in the system will be fully opened before cargo is allowed to flow.
Valves will be opened in a controlled manner and loading will be started slowly, increasing only when the correct flow of cargo has been verified and product has reached all required areas of pipeline.
Vants from all cargo tanks must be verified as fully open, to allow any air in the lines and tanks to escape, thereby avoiding any build-up of pressure.
Cross flooding arrangement
Separate trim tanks
Ballast trimming system
Self acting ballast trimming arrangement
Where is a "rose box" fitted on a General Cargo ship?
At the turn of the bilge
At the suction ends of cargo hold bilge pipes
In the engine room bilge system
At the engine room section of the hold bilge system
In order to speak clearly and effectively you should:
gesture with your arms
stand tall with shoulders squared
never open your mouth too wide
open your mouth, pronounce your consonants, and shape your sounds well
What is the meaning of “remote mode” related to a slave controller?
The slave controller can be tuned by a hand carried remote controller
The slave controller can be in any mode of operation
The slave controller can be tuned from the engine control room
The slave controller receives the set-point from the output signal of the master controller
What would you do if you were told that cargo on a flatrack has a tendency to deform or to compact during the voyage?
Slacken the cargo securing gear
Reject the cargo
Ensure that the cargo is secured as per shipper’s instructions
Accept the cargo as it is and clause the mate’s receipt accordingly
When starting cargo compressors they should be:
Unloaded.
Fully loaded.
Half loaded.
It does not matter.
The wire mesh guards for the fans of refrigerated containers sometimes have coloured ribbons tied to them. Which of the options is the reason for fitting these ribbons?
To indicate if the fan is running too slowly.
To indicate that the fan is running in the correct direction.
To indicate to the crew that the fan is running as a safety consideration.
To indicate that the fan is running at the correct speed.
What should be continuously monitored when carrying DRI cargoes?
Hydrogen emissions
Integrity of the inert gas blanket
Nitrogen emissions
Cargo temperatures
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
Some main propulsion medium speed engine installations operate with a hydraulic oil type fluid coupling between the engine and the reduction gearbox instead of a mechanical clutch. With this type of installation a separate flexible coupling is not normally fitted. Why is a separate flexible coupling usually omitted from this type of installation?
There is insufficient room to fit a flexible coupling between the engine and gearbox when a fluid coupling is fitted.
There are no engine torque variations in the drive when a fluid coupling is used so a flexible coupling is not required.
The hydraulic fluid in the coupling isolates the gearbox from the engine vibrations.
There is natural slippage between the drive and driven parts of the fluid coupling and a flexible coupling would prevent this slippage.
What can be the punishment for a shipmaster of a Norwegian ship if he without sufficient cause refuses to receive onboard persons for whom Norwegian authorities must provide transportation?
He shall be liable to imprisonment for a term not exceeding six months.
He shall be liable to fines or imprisonment for a term not exceeding six months.
He shall be liable to fines or imprisonment for a term not exceeding three months.
He shall be liable to fines.
What type of lubricating oil is generally used for for cylinder lubrication on a large, 2-stroke diesel, main propulsion engine operating on heavy fuel oil?
Mineral based oil with high alkalinity and other additives.
The same oil as the main lubricating oil system
Straight mineral oil.
Synthetic oil.
You have just completed washing a stainless steel cargo tank, following discharge of a cargo of Isobutylamine. You have washed the tank with warm salt water. What will you now do to prevent damage to the stainless steel?
Rinse the tank with cold salt water.
Rinse the tank with fresh water.
Vent the tank immediately.
Turn the heating coils on to dry the tank as quickly as possible.
At what temperature is it recommended that frozen meat should be stored?
-45 degrees Celsius.
Between -5 and -10 degrees Celsius.
-20 degrees Celsius.
0degrees Celsius.
This circuit shown is a logic gate with two 'high' input signals, A and B, and one output signal Q. Which type of logic function does the gate provide?
OR gate
AND gate
NOR gate
NAND gate
In a PID controller we have possibility to change the setting of the Proportional band (P), the Reset time (1) and the Rate time (D). Please indicate which curve shows the typical response to a change in input, if the setting of the proportional band is too wide.
Figure 1.
Figure 3.
Figure 4.
Figure 2.
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 system for continuous monitoring of the concentration of hydrocarbon gas shall be fitted in cargo pump-rooms. A continuous alarm shall be automatically effected when the hydrocarbon gas concentration reaches a pre-set level. What are the criteria for pre-setting the alarm level?
No higher than 10% of LEL.
No higher than 15% of LEL.
No higher than 5% of LEL.
No higher than 20% of LEL.
What is Inert gas ?
It is a gas containing insufficient oxygen to support combustion of hydrocarbons
It is a gas containing only nitrogen
It is a gas containing less than 21 % by volume oxygen
It is a gas containing no oxygen
What is the main reason that LPG boil-off gas is unsuitable for use in the vessel's fuel supply?
LPG vapour is heavier than air at atmospheric conditions and represent a risk as they may accumulate in machinery spaces.
LPG vapour is too difficult to ignite.
Reliquefaction of LPG vapour is a simple process and is a cheaper option than burning the boil-off gas in the boiler.
LPG is too expensive to use as fuel.
What is a Marine Evacuation System?
Helicopter evacuation
Assistance from other ships
Evacuation Chute(s)/Slide(s) and Liferafts
Liferafts supported by Fast Rescue Boats and Lifeboats
In most colour coding systems for kitchen knives, what colour is used to indicate those used only for preparing raw meat?
Black.
Blue.
Red.
Yellow.
A company must update its Safety Management System and Manual:
whenever regulations change
at least once every 18 months
at least once every 12 months
at least once every 6 months
Chemical boiling out is one method that is used for cleaning the waterside of a steam boiler. Select from the given options the likely circumstances under which this procedure would be considered necessary?
Contamination of the boiler water by oil.
Excess chloride levels in the boiler water.
Excessive sludge build up in the water drum.
Oxygen pitting in the steam drum.
What type of component does this graphical symbol illustrate?
Pressure-reducing regulator.
Pressure relief valve
Flow controller
Pressure switch
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.
How will you find the Tipping Moment of a cargo item?
Transverse accelerations/10 x weight of cargo item x height of its centre of gravity above its base
Transverse accelerations/10 x weight of cargo item x height of its centre of gravity above the keel
Transverse accelerations/7 x weight of cargo item x height of its centre of gravity above its base
Transverse accelerations/7 x vessel's natural roll period
Where is a load-equalising device used?
With wind lashings
With parallel lashing rods
With single lashings
With upper and lower crossed lashings
Where do you find detailed information and specific technical requirements for fire safety systems?
ISM Code
SOLAS
Safety Management System
Fire Safety Systems Code (FSS Code)
What action should be taken by a rating on watch if steam is heard to be escaping from the area of the bottom water header handhole doors? The boiler is a high pressure boiler generating superheated steam.
Use the hand to have a feel around the area to try and locate the exact position of the leak.
Check the area where it is thought the leak may be using a cloth on the end of a broom handle.
Pass the information that there is a leak to the relief at the end of the watch.
Immediately inform the Officer of the Watch.
A galley hot plate uses a Nichrome / Magnesium Oxide heating element and is to be tested before being put into service for the first time. An insulation resistance test yields a reading of 0.3 M Ohm. Which action should be taken?
Wash the element in a degreasing agent. Then retest and if ok put it into service.
Put the element into service.
Discard the element.
Apply reduced voltage to the element for a few minutes. Then retest and if ok put into service.
In describing the characteristics of oil cargoes or oil / water slops, what is a mercaptan?
The component of hydrocarbon-based cargoes which is formed from Merolion Carbonized Tannin.
A device fitted to a cargo pump which automatically alerts the operator once traces of water start to be detected during discharge.
A chemical additive blended with crude oil to inhibit the natural "rotton egg" smell associated with certain grades.
A colourless, odorous gas, with a smell similar to rotting cabbage and which is generated naturally by the degredation of natural organisms, as may be found where water has remained under oil for a long time.
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.
Are we allowed to load ammonia on inert gas?
We are not allowed to load ammonia on inert gas except when the inert gas is dry enough
We are not allowed to load ammonia on inert gas
We are allowed to load ammonia on inert gas if the inert gas has dew point less than 0oC
Ammonia can be loaded as long as the cargo tank is liquid free of last cargo
At what interval does the IMO adopt an amendment to the IMDG Code?
Every five years
Every year
Every two years
Every six months
High-level alarms are always switched on during loading operations. Is it necessary to have them switched on during discharge operations on a chemical tanker?
The only way a high level alarm will activate during discharge is as the set level is passed as the tank empties. It is therefore of no value to have them switched on.
No, the alarms are only of value and significance for an increasing liquid level such as is found during loading.
Yes, there is still a risk of overflow if several tanks are connected to a common line system.
It is wholly the choice of the Officer of the Watch whether he uses high level alarms during a discharge operation.
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