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家 在线测试 CES Gas tanker Deck Support Test online CES 5.1 for Deck department, Support level, Gas tanker vessel
在线测试： Test online CES 5.1 for Deck department, Support level, Gas tanker vessel
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该测试由有关选定主题的随机问题组成。
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“RECEIVED MAYDAY” is used in a:
Distress alert
Supplementary receipt on a distress alert
When received a weather report
Receipt of a distress alert
What is false regarding the function :” Transmission and reception of on scene communications ”
On area A1 this function is based on the use of VHF R/T
On area A4 this function is based on the use of HF R/T
On area A3 this function is based on the use of VHF or/and MF R/T
On area A2 this function is based on the use of VHF or/and MF R/T
Automatically connected telephone calls via INMARSAT A are charged
on the basis of a one minimum charge with one minute incremental steps
on the basis of a six second minimum charge with six second incremental steps
on the basis of a three minute minimum charge with one minute incremental steps
on the basis of a six second minimum charge with one second incremental steps
A diabetic has eaten too little food and the person may feel dizzy and lightheaded. The skin becomes pale, with profuse sweathing. Limbs may begin to tremble and pulse becomes rapid. The urine glucose reaction is negative. What kind of medicine will the person need as soon as possible?
Sugar lump, sugar drink or something sweet.
Nothing at all.
Insuline.
A glass of cold milk.
How will the ship behave if you have a "black out" in the situation illustrated?
The vessel will turn to starboard and the speed will slowly reduce.
The vessel will turn to port and the speed will reduce gradually
The wind will push the vessel sidewards, but the heading will not change
The vessel will continue on course and the speed will slowly reduce
The ship has completed a 360 degree turn at full speed in deep water. The ship is now to repeat the turn at full speed in shallow water. What will be the difference in the turning circle diameter?
The turning diameter will be smaller in shallow water
The turning diameter will be the same for all depths
The turning diameter will be increased in shallow water
It will be the same provided the UKC is 25%-50%
What is the correct understanding of the term "bank effect"? If a ship was approaching the bank at an angle, what would be the effect on the ship?
The vessel's stern is pushed away from the bank
The vessel’s bow is attracted by the bank.
The whole vessel would continue straight towards the bank and would require a large helm order to avoid going aground.
The vessel's bow is pushed away from the bank
You are the Sen.Off.Deck of a vessel involved in a collision. All necessary actions to ensure safety of crew and vessel has been taken. What shall you then tell the Sen.Off.Deck on the other vessel?
Don-t talk to the Sen.Off.Deck on the other vessel at all.
Name and Port of registry of your vessel.
That you are sorry for the collision.
Check with the pilot, or any witnesses, about their consideration of whom to blame for the collision.
When carrying LNG cargoes it is useful to have information about its thermodynamic properties. What is a common source of information that can be used to obtain values for a wide range of these properties?
The IGC code.
The cargo manifest.
Material safety data sheet.
A Mollier chart.
Indicate the correct name for the tool on the sketch:
Grinding machine
Flat file
Chisel
Pliers
In a large, 2 stroke, main diesel engine cylinder lubricating oil is supplied directly through lubrication points cut into the cylinder liner. At what point during the cycle should the supply normally occur.
At mid-stroke of the piston.
As the piston rings pass the lubrication points.
At Bottom Dead Centre.
At Top Dead Centre.
You are the Officer on Watch on an oil tanker during a discharging operation. An alarm on the Inert Gas Plant indicates that no inert gas is being supplied to replace the discharging cargo. What will you do?
Continue discharging with the cargo pumps running at minimum speed.
Slow down and relieve the vacuum by opening the tanks lids.
Immediately stop the discharging.
Activate the inert fans and blow fresh air into the cargo tanks.
A number of substances are carried as cargoes on liquefied gas carriers. Of those given in the options, which is the most reactive, and therefore least compatible, with other liquefied gas cargoes?
Chlorine
Propane
Ethylene
Methane
What does MARVS mean?
Maximum ROB of Vapour.
Maximum Recovery Setting.
Minimum Allowed Relive Valve Setting.
Maximum Allowed Relive Valve Setting.
Which statement about the use of profiling onboard a ship is true?
A random selection process must be established.
Detection equipment can be used in place of profiling.
Profilers need at least half an hour to gather the information they need.
Only visitors can be profiled.
What is meant by a two stage compressor ?
Two stage air compressors have the capabillity to compress air in stage one and dry the air in stage two.
The compressed air goes back from stage two and into stage one to get extra pressure before it goes into the starting air bottles.
The two stage air compressor take some air from the surraundings to stage one and compress and some air from the surraundings to stage two and compress.
Air from stage one goes through discharge valves in stage one and through suction valves into stage two. In stage two it will be compressed to high pressure air.
What is the purpose of an oil mist detector, OMD, as fitted to a diesel engine?
To detect any potentially explosive atmosphere in the crankcase.
To detect stuffing box leakages.
To detect circulation of the engine lubricating oil.
To avoid hot spots in crankcase.
Strawberries are a sensitive cargo with a relatively short carriage life and can only be carried on short sea passages. They are often irradiated for transport. Select the true statement from the options given relating to the effect of irradiation.
A cargo of irradiated strawberries must be stowed well away from the crew accommodation to reduce the possible effects of cobalt 60 radiation.
The main effect of irradiating strawberries prior to transport is that it kills off any bacteria on the fruit.
The main effect of irradiating strawberries prior to transport is that it improves the colour of the fruit.
The main effect of irradiating strawberries prior to transport is that it kills any flies on the fruit.
Which type of cargo pump works by the cargo being drawn into the pump at high speed and being thown outwards against the pump casing by rotating impellers?
Centrifugal.
Positive displacement.
Reciprocating.
Self-priming.
Why do rolled joints of meat carry a higher risk of bacterial infection?
Because rolled joints are normally purchased already prepared and the quality control of a shore supplier can not be guaranteed.
Because meat of a poorer quality is generally used in rolled joints.
Because any bacteria that were present on the outside surface of the meat will be transferred to the inside when the joint is rolled.
Because the temperature necessary to kill bacteria can never be reached in the middle of a rolled joint.
How often shall the master review the safety management system?
Every month
Bi-annually
Every 5 years
Annually
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.
What would you do before giving a boiler a “bottom blow”
Increase the oil temperature
Drop the water level a couple of inches below normal
Increase the oil pressure
Raise the water level a couple of inches above normal
What would be the most likely cause of a smell of "rotten eggs" in the upper casing of the engine room?
Fresh water evaparator malfunction.
Open or leaking acetylene bottle.
A leak of exhaust gas from a boiler or diesel engine exhaust.
Failure of the ship's refrigeration system.
What is the traditional seaman's saying that suggests the procedure to follow when carrying provisions around the galley and storerooms and up and down stairways?
"One hand for the ship and one for yourself".
"One hand for the Captain and one for the Cook".
"One hand for the ship and one for the stores".
"Keep your hands to yourself".
There are certain cargoes which are extremely sensitive to moisture in the atmosphere. How are they commonly protected when shipped on chemical tankers?
By heating the cargo above the temperature of the outside air.
By filling the tank with inert gas before loading.
By continuously ventilating the ullage space above the cargo in the tank.
By the application of a nitrogen blanket (pad) above the cargo in the tank.
If an engine does not turn when the starting air is applied, what could be the most probable cause?
One or more starting air valve(s) have stuck.
Any of the alternatives.
The starting air distributor does not rotate, the coupling drive defective.
Starting air pressure is too low.
On a RoRo vessel, what additional securing arrangements should be used when loading a vehicle on an incline or fixed Ramp
Double the normal lashings should be used
None
The Vehicle should also be chocked under its wheels
When handling slops on an oil tanker, what is meant by "settling"?
Allowing any waxy layers to settle below the residual oil
Allowing the oil and water to separate out
Allowing the mixture to rest once it has been pumped into the slop tank, so that any static charge disperses
Allowing any sediment to separate out and drop to the bottom of the tank
A ro-ro unit weighing 18mt is to be loaded in the fore and aft direction and lashed by belts of SWL 2mt. How many lashing belts should be used to secure the unit?
9
10
8
At least 12
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 does the 1 Engineer want to have done?
He wants the feed water tank inspected
He wants the Fitter to Check the CO 2 equipment
He wants the feed water tank cleaned
He wants the heating coils inspected
What procedures should prevent normal ship work activities conflicting with cargo operations on a General Cargo Vessel?
Stevedore and Chief Officer planning meetings
Masters standing orders
Ships Security Code
Risk assessments and permit to work systems
This circuit is widely used for rectification of AC into DC. Which of the diagrams is correct for the out- put voltage when the input voltage is sine-shaped as shown?
Figure 3
Figure 1
Figure 2
Figure 4
On the figure 4 possible definitions of the term "BOW/STEM" are given. Which one is the correct one?
Bow/stem is given by B on the figure
Bow/stem is given by A on the figure
Bow/stem is given by D on the figure
Bow/stem is given by C on the figure
A ro-ro unit weighing 2mt is to be loaded in the fore and aft direction and lashed by belts of SWL 0.6mt. How many lashing belts should be used to secure the unit?
4
6
8
10
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
A 3-phase induction motor is rated at 200 A Full loadline current. Its initial direct- on-line starting current will be approximately:
5000 A
1000 A
200 A
100 A
Why is it important to make weekly/routine rounds in the accomodation areas?
To search for any contraband goods hidden on board
To check for alcohol in cabins
It is a requirement as per flag state
To ensure that cabins and common spaces are maintained in a clean, safe and hygienic condition
From the options given, select the type of cleaner that is most suitable for washing down a refrigerated cargo space.
A cleaner which contains a powerful bleaching agent.
A cleaner which has a fresh smell such as the smell of pine.
A cleaner containing a powder scouring agent.
An odourless cleaner.
For what purpose is inert gas normally used in the cargo tanks of a liquefied gas carrier?
To maintain an inert atmosphere in the tanks during a loaded voyage.
To prevent an explosive atmosphere forming in the cargo tanks before gas freeing.
To pressure test the cargo tanks after repair work.
To help displace the cargo from the tanks during discharge.
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.
What is the value of GZ upto an angle of heel of 5 degrees?
GM x Sin angle of list
GM x Cosine angle of list
GM x Tan angle of list
GM / Sin angle of list
What should you keep in mind when releasing lashings?
Step aside when lashings are released
Close your eyes
Release lashings with great care to reduce the risk of injury when tension is released
Always use one hand!
With regard to the IMDG Code what do Calcium Oxide (UN No. 1910), Magnetized Material (UN No. 2807), Sodium Aluminate (UN No. 2812) and Battery Powered Equipment (UN No. 3171) have in common?
They are listed as Corrosive Substances - IMDG Class 8
They are not listed in the IMDG Code
Due to their characteristics they may be shipped in open top containers
They are not subject to the provisions of the IMDG Code but may be subject to provisions governing the transport of dangerous goods by other modes
On a Container vessel, which document should be consulted for guidance with respect to lashing containers onboard 'own vessel'.
The company's ISM handbook.
The Code for the Safe Practice for Cargo Stowage and Securing.
The Stability Manual.
The Cargo Securing Manual
What are we calling materials with same molecule formula, but the properties are different because the atom structure is different?
Chemical reactions
Saturated hydrocarbons.
Isometric bonding.
Double bonding
A consignment of steel drums containing IMDG Class 8 cargo are about to be loaded in the hold of a General Cargo vessel; a number of drums are leaking slightly, what action should be taken?
The cargo consignment not be loaded at present; the Chief Officer must be informed and make final decision if the cargo is to rejected
The cargo must be stowed under deck
The drums can still be loaded provided that they are only loaded on deck
The cargo cannot be rejected and must be loaded
In the ISGOTT Guide, petroleum products are divided into two general groups for the purposes of indicating flammability, based on flashpoint and vapour pressure. These two groups are named 'Volatile' and 'Non-volatile'. To be considered Non-volatile, which of the following criteria must be met?
With a Flashpoint of 60 degrees C or above (open cup method), these liquids produce, when at any normal ambient temperature, equilibrium gas concentrations above the Upper Flammable Limit.
With a Flashpoint of 60 degrees C or below (closed cup method), these liquids produce, when equal to or below any ambient temperature, gas concentrations of less than 5% by volume.
With a Flashpoint of 37.8 degrees C or above (open cup method), these liquids produce, when at any normal ambient pressure, equilibrium gas concentrations below the Lower Flammable Limit.
With a Flashpoint of 60 degrees C or above (closed cup method), these liquids produce, when at any normal ambient temperature, equilibrium gas concentrations below the Lower Flammable Limit.
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
If an enclosed space needs to be entered, what is the first thing that must be done?
A responsible person must be appointed
The chief officer must be asked for permission to enter the space
A full Risk Assessment must be caried out
Two crew members must be asked to stand-by outside the space
On a container vessel, what additional force must be considered when planning the lashings for containers stowed at the outboard part of the deck stow.
Lack of support from adjacent columns of containers.
The effect of green seas breaking over the containers.
The effect of wind on the containers.
The greatest transverse accelerations are experienced at the outboard sides.
Which of the given statements is true in relation to the features and operation of a 4 stroke diesel engine ?
4 stroke engines are not required to have crankcase relief valves fitted.
The camshaft rotates with half the RPM of the crankshaft in a 4 stroke engine.
A 4 stroke engine always has scavenge ports near the bottom of the cylinder liner.
A 4 stroke engine has an ignition towards the end of every upward stroke of the piston.
How frequently should the PA-system (Public Address) be tested?
Every week
Every year
Every day
Every second year
What is the most common method of connecting the manifold of an LNG carrier to the shore terminal pipelines?
By special sections of portable steel pipe.
By permanently fixed metal hard arms.
By composite hoses suspended from a boom with a swinging arm.
By flexible rubber hoses.
Why is it not possible to wash all crockery and glassware in a dishwasher?
Because not all crockery and glassware is dishwasher proof.
Because plates and containers that have held raw meat and fish must not be washed together with plates and glasses that have been used for cooked foods.
Because coloured glass and crockery will not survive the high temperatures generated in a dishwasher,
Because Health and Safety regulations require that items above 30 cm (12") in diameter must be washed by hand.
What is a Marine Evacuation System?
Liferafts supported by Fast Rescue Boats and Lifeboats
Helicopter evacuation
Assistance from other ships
Evacuation Chute(s)/Slide(s) and Liferafts
Which statement about the garbage record book is true?
Each entry is to be written in the language of the ship's flag state
It is required by all ships on International voyage
Each entry is to be signed by the Master
It is used to record all operational and accidental garbage discharges
Too low exhaust temperature in one cylinder becomes because of:
Injection valve opening pressure is too low.
Charge air pressure is too high.
Injection valve opening pressure is too high.
Any of the others.
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.
TBN - total base number from a lube oil test, indicates the:
Amount of organic acids in the oil.
Amount of contaminants in the lubricating oil.
Alkalinity of the lubricating oil.
Flash point.
Which of the following statements is generally true in relation to inert gas systems for LNG carriers?
Most LNG carriers use the boiler exhaust as the main source of inert gas for cargo spaces as well as interbarrier and hold spaces.
Most LNG carriers have Nitrogen generators capable of providing all of the inert gas requirements for cargo spaces as well as interbarrier and hold spaces.
Most LNG carriers have a combustion type inert gas generator for the cargo tanks and a Nitrogen supply or generator for interbarrier and hold spaces.
Most LNG carriers do not have inert gas facilities fitted onboard and rely on shoreside installations to provide inert gas as required.
A bulk cargo has been discharged by grabs; what is an important check to make before closing the hatch cover?
Vessel trimmed even keel
Check that hatch coaming and sealing bar have not been damaged by grab contact
All other cargo holds empty of cargo
Hold ventilators open
The ship is to berth alongside a quay in calm conditions of no wind or current. The ship has a single fixed pitch right handed propeller. Which angle of approach would be considered the most favourable?
No. 3
The decision should be left to the pilot who is in charge of the manoeuvre.
No. 2
No. 1
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.
What is the meaning of the expression 'dead-band'?
It will is not respond to adjustment of set-point
The controller will not react to a process change in this range
The controller will enter 'sleep mode'
It will take some time before the controller will react to a change
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
The effective stability of a tug, when assisting a vessel to manoeuvre, can be decreased by hydrodynamic interaction with the ship it is assisting. Where is the most dangerous position of the tug relative to the ship, for this adverse affect to be found?
The most dangerous position is when the tug is alongside the amidships section of the larger vessel.
The most dangerous position is where the tug has made fast the towing spring and is then moving ahead of the larger vessel.
The most dangerous position is where the tug approaches the stern of the larger vessel and enters into its associated positive pressure field.
The most dangerous position is where the tug approaches the bow rounding the forward shoulder of the larger vessel.
From the options given, select the one which controls the effective delivery stroke of a helix type fuel pump for a diesel engine to increase or decrease the quantity of fuel delivered.
The booster pump
The fuel injector
The fuel master control valve
The governor
What do we mean by purging a cargo tank?
To purge a cargo tank means that we liquid free the tank with hot gas.
To purge a cargo tank is to load cargo into the tank.
To purge a cargo tank is to change the vapour phase either with cargo or neutral atmosphere.
To purge a cargo tank means that we blow air into the tank.
What do you understand by the term ‘Separated From’, with regard to the stowage of dangerous goods on deck?
Separation by a distance of at least 3m vertically
Separation by a distance of at least 3m horizontally
Separation by a distance of at least 6m horizontally
Separated from the accommodation by at least one cargo space
When carrying fishmeal without anti-oxidant which of the following stowage patterns is recommended under the IMDG Code?
The block stow with extensive internal channelling
The double strip stow with extensive athwartships channelling
The block stow with no internal channelling
The compact stow with limited channelling
What problem is associated with the use of twistlocks?
Sliding of containers when a vessel is pitching or surging
Susceptibility to wear and tear
Failure during heavy weather
The mixed use of left and right-handed twistlocks on the same vessel
You are driving a crane and the signalman on deck gives this signal. What does it mean? (Hand signals as per the Code of Safe Working Practices for Merchant Seamen).
Lift the jib.
Start, or attention!
Hoist the load.
Danger, or emergency stop!
What can be measured by means of a manometer?
Strain
Temperature
Pressure
Motion
With regard to fire hose boxes and/or fire hydrants, what must be ensured upon completion of cargo loading operations on a General Cargo vessel?
Fire hydrants must be accessible at all times
Fire hose boxes must be lashed so as to prevent accidental opening
Fire hose boxes must be accessible at all times
Fire hose boxes and fire hydrants must be accessible at all times
What is the benefit of prismatic Type "B" tanks?
The tanks do not form part of the ship's hull structure.
The ship's hull may act as the secondary barrier.
The tanks are completely self-supporting.
The benefit of maximising ship hull volumetric efficiency.
By what means can we monitor and control the integrity of the hull?
The chief officer is responsible for monitoring the integrity of the hull and superstructure at all times
Let experienced personnel close and secure doors and ramps
Automatic detection systems, television surveillance and patrolling of ro-ro cargo spaces
Documented operating procedures
The sign on the image indicates:
This is the location where you should operate pyrotechnic equipment (Buoyant smoke signal, hand flares and rocket parachute flares) In case of an emergency
Location of lifebuoy with self-igniting light and self-activated smoke signal
Location where you should throw lifebuoys in case a man- over-board situation occurs.
Rescue zone
A conventional reefer vessel is to load frozen beef in cartons and also frozen carcass lamb. The vessel has four decks - A being the upper 'tween deck and D being the lowest deck. From the options given select the one that gives the cargo distribution that would result in the largest GM.
Fill decks A and B with frozen beef and decks C and D with frozen carcass lamb.
Fill decks A and C with frozen carcass lamb and decks B and D with frozen beef.
Fill decks A and C with frozen beef and decks B and D with frozen carcass lamb.
Fill decks A and B with frozen carcass lamb and decks C and D with frozen beef.
U-tube manometers are often used to measure differential pressure. Which of the listed pressures is U-tube manometers mostly used for?
High differential pressures
Low differential pressures
Absolute zero pressure
Cargo pressure
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.
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.
A vessel which normally operates with the engine room in UMS mode is unable to do so because of defects to some of the critical alarm functions. What are the main considerations that the Chief Engineer must take into account when planning alternative arrangements to cover the engine room requirements until the defects are cleared?
A work rota is established to ensure at least one person is in the engine room at all times while the defects exist.
A work rota is established to ensure that normal routine maintenance is carried out on time in accordance with the planned maintenance schedule.
A work rota is established to ensure that the necessary repairs can be carried out as soon as possible.
A work rota is established to ensure full coverage of engine room watchkeeping duties and adequate rest periods for the engineering staff.
What do we call the heat given to or given up from a substance?
The heat given to or given up from a substance is called heat energy
The heat given to or given up from a substance is called change heat
The heat given to or given up from a substance is called latent heat
The heat given to or given up from a substance is called fusion heat
What action should you take if you have a flash-back during gas welding?
Run for your life.
Close the regulator valves immediately, oxygen first.
Cool the bottles down with water.
Use a portable fire extinguisher.
What is the minimum length of rubber insert when replacing a damaged section of the hatch cover seal?
250 mm
200 mm
275 mm
500 mm
On the figure 4 possible definitions of the term "CAPSTAN" are given. Which one is the correct one?
Capstan is given by C on the figure
Capstan is given by D on the figure
Capstan is given by B on the figure
Capstan is given by A on the figure
What is the meaning of this symbol ?
Immersion suit
Lifebuoy
Lifejacket
Child`s lifejacket
How much food per person is supplied in a lifeboat?
Not less than 20000 kJ
None - only barley sugar sweets supplied
Not less than 10000 kJ
Not less than 5000 kJ
该在线测试包含来自 CES 5.1 测试的 90 道随机问题，涉及您选择的主题。