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家 在线测试 CES Gas tanker MASTER / Ch-Officer Test online CES 5.1 for MASTER / Ch-Officer, Gas tanker vessel
在线测试： Test online CES 5.1 for MASTER / Ch-Officer, Gas tanker vessel
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The hydrostatic release unit used in the float-free arrangements will automatically release the liferaft at a depth of not more than:
4 m
8,50 m
1m
2,50 m
Give the meaning of the following symbol
Survival craft distress pyrotechnic signals
Rocket parachute flares
Lifeboat hand flare
Radio signal emitting parachute flare
*Is it necessary to have a visual and audible signal if an automatic sprinkler begins to work?
Yes
. Yes, if the sprinkler is in an unmanned engine room
Yes, if the spraying nozzle in question is not normally accessible to the crew while the ship is being navigated
No
Where do we find information regarding fire extinguishers, fire doors, remotes release buttons, fire equipment etc. onboard a ship?
The engine log book
The ship's drawings
On the bridge
The ship's fire plan.
*The temperature control system of the main engine crankshaft bearings indicates high temperature. What would be the correct way to open and check the crankcase?
Stop the engine immediately, stop the lube oil pump, and inspect the crankcase after 5 minutes
Stop the engine and open crankcase down immediately for inspection
Reduce the RPM to a minimum and open the crankcase doors carefully
Stop the engine immediately and keep the lube oil pump running for at least 20 minutes before opening the crankcase
*You are carrying out a search in a smoke filled compartment wearing a breathing apparatus. At what stage should you start to make your way out of the compartment?
Wait for the appropriate signal on your safety line as the personnel outside will be keeping a track of the time you have spent inside
Wait until the breathing apparatus warning whistle sounds.
Regularly check your pressure gauge and note how much air you used to reach your work area. Start to return when you have this amount left plus a reasonable reserve
15 minutes after starting to use the set as this leaves you with five minutes air left
To obtain “time and duration” after a telephone call with number 010-1234567 in the Netherlands, via an Inmarsat-terminal, one should enter after receiving the second dialling tone:
Don't know
3731101234567#
31#
37#
With help of DSC a ship wants to contact a coast-station to have a question for telephone call. One has to choose from the following DSC-frequencies
TX: 8415.0 kHzRX: 8436.5 kHz
TX: 8415.0 kHzRX: 8415.0 kHz
TX: 8436.5 kHzRX: 8436.5 kHz
Don't know
A SART must be visible on the ship’s radar from a distance of at least:
Don't know
50 miles
30 miles
5 miles
A distress alert has accidentally been sent with the Inmarsat-C installation. One should now:
turn of the transmitter
make contact with an RCC
wait until an RCC reports
Don't know
" On area A3 the function "" Transmission and reception of on scene communications"" is mainly based on:"
the use of HF DSC and/or INMARSAT C
the use of MF and/or VHF R/T
the use of HF DSC
the use of MF and/or HF R/T
A faint is a brief loss of consciousness of no more than momentary duration caused by a temporary reduction in the flow of blood to the brain.How to prevent anyone from fainting?
Tell the person to sit down in a sitting position breathing normally.
Tell the person to sit down and lean forward with the head between the knees taking deep breaths.
Try to keep the person in an upstanding position.
If standing in a crowd, flex the leg muscles and toes to aid circulation.
Sun rays and light reflected from a bright surface (e.g. sea); can cause damage to the skin and eyes. What is this type of burn called?
Dry burns.
Cold burns.
Electrical burns.
Radiation burns.
Most cases of oil pollution are caused by human errors, often jointly by seafarers and shore based clean-up teams. What has proved to be the essential mistake executed by the shore people regarding environment damages?
Usage of oilbooms?
Usage of sawdust?
Usage of absorbent pads?
Dispersement of chemicals?
What is the flash point of a Class 3.3 substance?
Lower than 0?C
Lower than -18?C
Lower than or equal to 61?C
Lower than 23°C
*Where on board would you find out which fire sections are enclosed by "A" or "B" bulkheads and decks?
All the mentioned alternatives
On the capacity plan
On the general arrangement plan
On the fire control plans
Give the meaning of the following symbol
Area protected by Halon 1301
Area protected by sprinkler
Area protected by drenching system
Sprinkler installation
What would be the correct definition of the term "Squat"?
Squat is the reduction of underkeel clearance due to increase of water flow under the keel and an increase in the water pressure
Squat is the reduction of underkeel clearance of a ship when it moves through shallow water due to a reduction in water pressure.
Squat is the loss of effectiveness of the rudder and propeller as a ship moves through shallow water due to the reduction of water pressure.
Squat is the reduction of underkeel clearance and the possible change of trim of a ship when it moves through shallow water due to a reduction in water pressure.
You are sailing in shallow water, with 15% Under Keel Clearance. How will the stopping distance be, compared to deep water?
Longer
The same as in all depths
Shorter
About 1 ship-length longer
If a double banking operation is being conducted with one ship at anchor (which is yawing due to weather condition) and one tug is available for assisting in the operation, the tug should:
Assist the manoeuvring vessel.
Carry ropes from the approaching vessel to the other.
Endeavour to hold the anchored/yawing vessel steady.
Stand by and assist as necessary.
The OOW is expected to double-check the whole voyage plan?
Yes
No
Only the coastal part
Only if no ECDIS is used
If the OOW must leave the voyage plan, he should?
Inform the master
Check the new plan
No special action necessary
Make a note in the log book
With the VHF on board there has to be:
a document showing that the radio equipment has been installed by a recognized firm or person
an updated copy of the "Wet op de telecommunicatievoorzieningen”
a license
Don't know
A VHF transmission range is mainly restricted by:
the length of the aerial
the curvature of the surface of the earth
reflection by the ionosphere
Don't know
In what HF-band is long distance transmission possible when both stations are located in Darkness:
16 MHz
8 MHz
22 MHz
Don't know
*On board a ship, how many lifebuoys is required to be fitted with a buoyant lifeline ?
At least one lifebouy with buoyant lifeline on each side of the ship
Half of the total number of lifebuoys provided on board
Only the two lifebuoys of the quick-release system
The total number of lifebuoys provided on board
*Which one of the given requirements listed below, regarding survival craft muster and embarkation arrangements, listed below, corresponds to the present SOLAS regulations ?
searchlights to be provided at the launching station
muster and embarkation stations are to be arranged separately to improve working conditions
muster and embarkation stations shall be readily accessible from accommodation and work areas
davit-launched survival craft muster and embarkation stations shall not be arranged to enable stretchers to be placed in survival craft
A person wearing an anti-exposure suit shall be able to:
don and remove the suit in the water in no more than 5min. if it impairs ability to swim
dive into the water to the maximum draft of craft that the ship is provided with
jump from a height equal to that of the stowage of liferafts arranged to be thrown overboard
jump from a height of not less than 4.5m into the water without damaging the suit or being injured
Which item among those below is included in the normal equipment of every rescue boat ?
two tin-openers
one waterproof electric torch suitable for Morse signalling
one set of fishing tackle
watertight receptacles containing water for each person
Which item among those below is included in the normal equipment of every lifeboat ?
one copy of the prescribed life-saving signals
one immersion suit for each person
sea-charts and navigating equipment
a VHF transceiverb
How many Radar Transponders (SART) are required to be carried onboard a ship for use in survival crafts?
2, one of which being capable of floating free if the ship sinks
Two on each side of the ship
One in each lifeboat
One on each side of the ship
HEL-H is the abbreviation of a heavy helicopter radius of action for rescue purposes. What do you think the radius and evacuating capacity of the helicopter is?
500 nm and capacity for evacuating more than 25 persons.
100 nm and capacity for evacuating more than 10 persons.
200 nm and capacity for evacuating more then 15 persons.
150 nm and capacity for evacuating more than 12 persons.
When muster to a lifeboat drill, what is the first thing you do when entering the muster station?
Report your presence.
Wait for orders.
Put on your life jacket.
Wait for the order to put on your life jacket.
During test and/or maintenance work of the CO2 system affecting the release system, precautions to ensure that the gas is not released into the engine room due to a mistake are to be ensured. What precautions should be taken?
No special precautions necessary.
Arrange a watchman in the CO2 central.
Check the main valve for a potential leakage.
The main supply line to be blanked off prior to the work.
A pilot ladder shall, to prevent twisting, be fitted with 'battens'. The lowest batten shall be the 5th step from the lower end of the pilot ladder. At what intervals should there be further battens upwards on the pilot ladder?
It does not matter where the battens are fitted.
At intervals not exceeding 15 steps.
At intervals not exceeding 9 steps.
At intervals not exceeding 12 steps.
Indicate the correct name for the tool on the sketch:
Padlock
Adjustable wrench
Flexible pipe
Water Pump Pliers
What is the name of the device used for supervising all the ballast water to be pumped over board?
Ballast Monitor. (BM).
Ballast Supervising Monitor. (BSM).
Oil Detection Monitoring Equipment.(ODME).
Ballast Handling Monitor.(BHM).
The engine turns over normally when starting air is supplied but does not fire even though normal starting rpm is achieved. What could be the probable cause to this?
The lubricating oil temperature is low.
The turning gear interlock has operated.
The turbocharger has not run up to normal full speed.
Air in the fuel oil system.
Fluctuation of high temperatures in a boiler furnace can lead to refractory lining failure in which the surface of the firebrick breaks away in layers. What is the term used to describe this type of failure.for this?
Spalling
Slipping
Shrinking
Slagging
On what design temperature do we need full secondarry barrier
When the design temperature is below –55oC
Only if the cargo tanks are loaded
When the design temperature is below –55oC and the tank is not independent type B or C, we must have full secondary barrier
When we are carrying cargo on less than –10oC
Which of these is not covered in the chain register?
Deck cranes
The engine room gantry crane
Derricks
The gangway winch
After washing cargo holds why are cargo residues often found on the tank top when hatches are opened at the load port?
Because the washing of cargo holds was not thorough
Because of poor drainage into the bilges
Because of cargo residues falling down due to ship’s vibrations during the ballast passage
Due to failure of the bilge eductors
A transformer with 10:1 turns ratio and rated 50 kVA, 2400/240 Volts, 60 Hz, is used to step down the voltage to a distribution system. The low tension voltage is to be kept constant at 240 Volts. What load impedance connected to the low-tension side will cause the transformer to be fully loaded?
1.15 Ohms
230 Ohms
115 Ohms
2.3 Ohms
When LNG is used as fuel a double wall piping system must be used in the engine room. What condition should the annular space between the concentric pipes be maintained in when the fuel system is in service?
Filled with nitrogen at a pressure greater than the LNG fuel pressure.
Filled with nitrogen at a partial vacuum.
Filled with nitrogen at a pressure less than the LNG fuel pressure.
Maintained at a full vacuum.
When starting a flue gas plant on an oil tanker and after all intial checks have proved satisfactory, which of the following steps will be the first in the operation sequence?
Open air vent valve
Open the flue gas isolating valve
Open blower discharge valve
Start blower
The machinery detail plate is missing from a large electric motor and the weight is unknown. As part of a routine maintenance check the motor has to be lifted to access some other equipment. Which of the given options is the correct action that should be taken?
Try and lift it with the engine room crane as it is designed to lift the heaviest components in the engine.
Estimate the weight of the motor and select a chain block and strop with a safe working load of 1.5 times the calculated load.
As it is only a routine maintenance and not a breakdown then postpone the task until full details of the motor can be obtained.
Use the biggest chain blocks and strops available and carry out a trial lift.
As well as hazards due to flammability, toxicity and frostbite some liquefied gas cargoes may cause chemical burns in the event of skin contact? Which of the commonly carried cargoes given in the options is most likely to result in chemical burns due to skin contact?
Propane.
Butane.
Ethylene.
Ammonia.
What is a low location lighting system?
A light system powered by battery or fluorescent signs mounted at deck level indicating the way to the nearest exit
A system displaying the escape route from all cabins by light points in the ceiling, powered by battery
An illumination system for all corridors in cabin areas
An emergency illumination system that illuminates all deck areas to a minimum
What special equipment can often provide assistance in locating a man overboard and in the water?
AIS
A RACON
A sectored search pattern
A SART
Which certificate is issued to LPG and other liquefied gas carriers in accordance with the IGC code?
The Certificate of Fitness is issued in accordance with the IGC code
The International Load Line Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Construction Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Equipment Certificate is issued in accordance with the IGC code.
What type of discharge pumps are normally in use on gas carriers
It is screw pumps that is normally used on gas carriers
It is centrifugal pumps that is normally used on gas carriers
It is piston pumps that is normally used on gas carriers
It is submerged pumps that is normally used on gas carriers
The cargo tanks for liquefied gas carriers are grouped into 4 types depending on the survival capability requirements. Which of tank types is suited for the carriage of all cargoes listed in chapter 19 of the IMO IGC Code from a survival capability aspect?
2PG
2G
1G
3G
Bulk Coal cargoes may produce methane and carbon monoxide gas; what are the main features of these two gasses?
Methane and carbon monoxide gasses are flammable and lighter than air
Methane and carbon monoxide gasses are non-flammable and lighter than air
Methane and carbon monoxide gasses are non flammable but toxic
Methane and carbon monoxide are heavier than air and flammable
When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure. Why is this?
To avoid over-capacity in the IG generator.
To avoid locking the cargo pump impeller.
To minimise blowback.
To comply with MARPOL Annex VI.
On a container vessel, a number of twistlocks have been identified as suffering wear down. Choose the most appropriate way of dealing with these twistlocks.
Spare parts should be ordered and used to replace the worn down parts of the twistlocks.
The twistlocks should be isolated from use and disposed of appropriately.
The twistlocks should be removed to the ships workshop where the wear down can be built up with weld material.
The twistlocks should be landed ashore for repair at an approved workshop.
If the high PPM alarm is actuated on an automatic O.W.S. What should happen?
The sludge pump stopped.
Overboard discharge is stopped.
Overboard discharge continues.
The oil outlet valve opens.
What is the main purpose of the superheater vent valve on a high pressure steam boiler?
To remove air from the superheater.
To contol the superheater pressure during operation.
To remove water from the superheater.
To ensure a flow of steam through the superheater when raising steam pressure or when the boiler is not on-line.
On a container vessel what effects would exposure to anhydrous ammonia in moderate concentrations have?
Unconsciousness
Loss of memory
Death
Choking and possible loss of eyesight
Fully pressurised ships are fitted with type "C" tanks. What is the normal design pressure?
Design pressure of about 12 barg
Design pressure of about 2 barg
Design pressure of about 15 barg
Design pressure of about 18 barg.
What is ‘Standardized Cargo’?
Palletised cargo
Cargo for which the ship is provided with an approved securing system
Cargo that is shipped in standard dimensions
Breakbulk cargo
The operation of a diesel engine is controlled by a mechanical-hydraulic, compensated speed sensing governor. How will the governor control be affected if the compensation needle valve is closed in and the engine load changes?
The governor will hunt resulting in erratic engine speed control.
Engine speed control will be sluggish.
A change in load will not affect a speed sensing governor.
Altering the compensation needle valve has no effect on speed control.
On capesize bulk carriers what problems are associated with welding of the corrugated bulkheads during construction?
Stress concentrations at the corners of the bulkheads
Cracking of cross-deck plating
A reduction in shear forces
Several areas of the bulkheads being 'out of tolerance'
What does the term liquefaction mean with respect to some heavy metal concentrate cargoes on a Bulk Carrier?
The cargo is very dry and will not reach a flow state
The cargo may suffer moisture migration and become semi-liquid near the top of the stow
The cargo may self-heat on voyage
The cargo pile will always be stable
Most maintenance and repair tasks carried out onboard ship require a permit to work which will include a full risk assessment. Where would an engine room rating find out about the precautions that are required as a result of the risk assessment for a particular task?
Code of Safe Working Practices (COSWP)
Ships Safety Management Manual (ISM Code procedures)
Chief Engineer’s standing orders.
Engine room log book.
What area of an ordinary cook's knife is most likely to contain trapped particles of food and will require particular attention when it is being washed and cleaned?
The area where the blade is fiited into the handle.
The back edge of the blade.
The tip or point of the blade.
The area that has been gripped by the fingers and palm of the hand.
This figure shows a transformer, with two windings, N(1) = 2000 and N(2) = 1000 turns, on a common magnetic circuit. Assume that there is no energy loss in the transformer itself. Calculate the current I(2) when the current I(1) = 2 A.
I(2) = 8 A
I(2) = 2 A
I(2) = 1 A
I(2) = 4 A
The pressure delivered by a gear type fuel oil transfer pump suddenly reduces from 5 bar to 4 bar during transfer. From the options given, select the most likely cause of this occurrence.
The oil tank from which the oil is being transferred is empty.
The pump drive has sheared.
The pump gears and casing have become worn.
Part of the pump relief/recirculation valve spring has broken off allowing the valve to open further.
What must be checked carefully before commencement of ballasting tanks on a bulk carrier, when operating in very cold conditions?
Air pipes and sounding pipe open
No special precautions need to be taken.
Air ventilator pipes closed.
All air ventilators are open and free from ice build up.
There are a number of different designs of tanks used for the cargo containment systems for liquefied gas carriers including independent tanks. How many different types of independent tanks are there in the IMO Gas Codes?
There are three types of independent tanks; Spherical tanks, Membrane tanks and Prismatic tanks
There are three types of independent tanks, type A, B and C
There are two types of independent tanks; type 1 and 2
There is only one type of independent tanks; Spherical tanks
During routine checking of alarm functions of main and auxiliary equipment, some setpoints are canceled due to a mistake. What is the appropriate routine to ensure correct setpoints are set?
Ask your colleague if he remembers the correct setpoint
Check from previous records for correct values
Consult with the instruction manual for the equipment in question for correct values.
Select a setpoint based on present condition allowing for a reasonable safety margin.
A 250V contactor has been fitted to a 220V supply. Which of the following symptoms might be observed?
Contactor constantly on
Contactor wont operate
Contactor chattering (vibrating)
Contactor overheating
TAN, total acid number is the:
Total content of organic acids in the oil.
Total content of organic and inorganic acids in the oil.
Amount of remaining alkalinity in the oil.
Total content of inorganic acids in the oil.
What is the most common way to control the tank pressure on a LNG tanker?
To let the gas escape through the safety valves.
To transfer the gas to another tank which is at a lower pressure.
To discharge the gas into the atmosphere through the vents.
To use the boil-off gas as fuel for the vessel.
When carrying out repair or maintenance tasks involving hot work a hot work permit must be issued. Select the correct option from those given which completes the following statement. 'The permit for hot work…
..is valid for completion of the specific hot work tasks irrespective of the time taken.'
..can cover any additional hot work that arises during the completion of the task during the specified time period.'
..should only cover specific hot work tasks and be valid for a specified time period.'
..should only cover specific hot work tasks, be valid for a specified time period and be issued by the person carrying out the work.'
When talking about the properties of an oil cargo, what does "flammable" mean?
When it catches fire, flames may be seen, as well as smoke.
That it does not need an external ignition source to cause it to burn. It will do so by itself.
That it is not capable of burning.
That it is capable of being ignited and of burning.
What would indicate the onset of Parametric Rolling?
When the wave encounter period approaches the natural roll period of the ship
When twice the wave encounter period approaches the natural roll period of the ship
When wave heights experienced from either quarter exceed 6 meters
When wave heights experienced from the bows exceed 6 meters
A vessel is scheduled to enter a SECA during a forthcoming voyage? What additional considerations must a Chief Engineer take into account when planning for this voyage?
That all garbage is fully disposed of prior to entry into the SECA and suitable arrangements are made for retention while in the SECA.
That there is sufficient room in the bilge holding tank to ensure no discharges of machinery space bilges takes place while the vessel is in the SECA.
That the incinerator is shut down for the duration of the time the vessel is in the SECA.
The availability of low sulphur fuel and the change over time required to ensure the system is clear of normal fuel prior to entry into the SECA.
There are a number of standard reliquefaction plants commonly fitted onboard LPG and other liquefied gas carriers. What type of reliquefaction plant is required for a cargo of Ethylene Oxide?
Two-stage direct cycle.
Cascade direct cycle.
Indirect cycle.
Single-stage direct cycle.
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.
Cargo Gear/Cranes should at regular intervals be thoroughly examined and load tested by a recognised company/yard. How often should such examination/load test take place?
Every 5th year.
Every 4th year.
Every 2 1/2 year.
Annually.
Records relating to breaches of security and changes in security level must be secured against unauthorized access and available for review by contracting governments.
TRUE
FALSE
.
On a RoRo vessel, what must be ensured so that vehicles are not damaged on the loading ramp?
The ramp angle must not exceed its safe working limit
The ramp surface must be free of oil
Safety signs must be posted at the ramp
One man must always stand-by the ramp
Which is the preferred state to have the main turbine in while shutdown for a short stay in port?
Left with autospin operating to give periodic turning.
Gland steam left on to keep the rotor and casing warm and with turning gear switched off but engaged to 'lock' the rotor in position.
Turning with the turning gear and gland steam on.
All steam shut off with turning gear switched off but engaged to 'lock' the rotor in position.
What kind of cargo pumps is most common on LNG carriers?
Deepwell pumps.
Single stage deepwell pumps.
Submerges motor pumps.
Multistage deepwell pumps.
This amplifier circuit is a common configuration used to amplify the difference in voltage between two input signals; in this case input 1 and 2. What is this amplifier called?
Push-pull amplifier
Differential amplifier
Common emitter amplifier
Darlington connection amplifier
The bottom end bolts employed in 4 stroke diesel engines are usually given a finite life and must be replaced periodically. What would be the normal failure mode that would affect these bolts if they were not replaced as required?
Failure due to torsional stresses
Failure due to bending stresses
Failure due to fatigue stresses
Failure due to tensile stresses
What is typical for a continuous control system
The output signal is equal to the input signal
The control valve will always be changing positionv
It is possible to predict the control mathematicallyIt is possible to predict the control mathematically
It is not possible to have a stable process
On a Container vessel, why should a vessel not carry left and right-handed twistlocks?
Because containers cannot be locked using both types of twistlock
Because there will be confusion as to whether or not containers are locked
Because international regulations do not permit it
Because the two types of twistlock have different strength ratings
What is the minimum Initial Transverse Metacentric Height (GM) allowed under the International Load Line Rules?
2.5 metres
0.5 metres
0.15 metres
1.0 metre
What would be considered as an acceptable range for the p-alkalinity in a low pressure auxiliary boiler?
0- 100 ppm CaCO3.
300 - 600 ppm CaCO3.
600 - 1000 ppm CaCO3.
100 - 300 ppm CaCO3.
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