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家 在线测试 CES Gas tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
在线测试： Test online CES 5.1 for 2nd-Off / 3rd-Off, 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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Among working conditions listed below which one is required for every propulsion engine of lifeboats?
For a period of at least 72 hours
Any type of fuel
Not less than 5 min after starting from cold with the lifeboat out of the water
Propeller permanently driven by the engine
Which part of the float-free arrangement for inflatable liferafts is made to provide a connection between the ship and the liferaft?
the lashing strap
the weak link
the hydrostatic release unit
the painter
How many buoyant smoke signals are carried in each liferaft with SOLAS A pack?
Nil
2
6
4
What is the minimum necessary condition for the start and permanence of an oil fuel fire?
The temperature is below the flash point
The temperature is below 100°C
The temperature is equal to or over the flash point
The temperature is above 250°C
*In which one of the following an oil, the flash point of which only needs to be over 43°C, may be used?
In the kitchen
In the main engine
In emergency generators
In inert gas generators
In a fixed gas fire-extinguishing system
An audible alarm must sound when the CO2 is being released
An audible alarm must sound when half of the initial amount of CO2 has been released
An audible alarm must sound for a suitable period before the CO2 is released
All the answers are good
*What is the working principle of the detectors of a common fixed sprinkler fire-extinguishing system?
they are smoke detectors
they are flame detectors
they are rate-of-rise detectors
they are fixed-temperature detectors
What are the criteria that it must be automatic fire detection onboard a ship with heat/ smoke detectors and audio alarm?
All ships that is covered by the IMO safety conventions
All ships that are built after 1986
It is the owners option to have fire detection onboard
All ships that are built on or after 1986 in accordance with local rule and regulations
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
A Cargo Ship Construction Certificate will be issued for :
A period not exceeding 12 months
A period not exceeding 48 months
A period not exceeding 6 months
A period not exceeding 24 months
COTP can request (OPA-90)
Maximum one drill a year
Maximum two drills a year
Unannounced drills at any time
Participation in all announced drills
If a person is in a state of shock, what of the following is the correct thing of you to do?
Apply hot-water bottles to keep the pasient warm.
Move the casualty as much as possible.
Treat and reassure the casualty and stay with the person at all times.
Be kind to the casualty and give anything to eat or drink at first opportunity.
You are Sen.Off.Deck / Duty officer onboard one of the vessels involved in a collision. How will you act just after the collision?
Start an argument with the other vessel about fault.
Call the Company Office.
Continue the voyage to your destination.
Make sure your vessel + crew are safe and then offer your assistance to the other vessel.
You are towing a vessel. The total length of the tow is 190 meters. What daylight signals are to be used?
No need of any signal.
Two black balls.
Diamond shape.
One black ball.
When synthetic ropetails are used at the ends of wire ropes, due expected faster deterioration of the synthetic ropetails, it is recommended that when ordering ropetails, their initial breaking strength specified should be:
15 % more than the wire's.
65 % more than the wire's.
25 % more than the wire's.
A ship is not turning around the center of gravity, but another point. What is the point called?
Point of radius
Pivot point
Point of turning
Point of no return
What shape of hull would you say a course unstable ship would have?
A ship with a length to beam ratio greater than 5.5
A ship with a length to beam ratio less than 5.5
A ship with a long, slim hull.
A ship with a length to beam ratio less than 7
Poster or signs shall be provided on or in the vicinity of survival crafts and their launching controls. Which one of the following requirements has to be included according to present SOLAS regulations?
Give relevant instructions and warnings.
Give an overview of location of all lifesaving appliances.
Give information on survival craft capacity.
Give information on survival craft speed and seaworthiness.
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
swim through the water at least 25m and board a survival craft
jump from a height equal to that of the stowage of liferafts arranged to be thrown overboard
dive into the water to the maximum draft of craft that the ship is provided with
Having boarded the liferaft, how do you release the painter?
Cut it with the axe provided
Let go the quick release toggle
Wait for it to break as it is provided with a weak link
Cut it with the safety knife stowed on the exterior of the canopy close to the painter attachment point
*Give the meaning of the following symbol
Close rescue boat ventilation aperture
Secure hatches
Secure liferaft canopy closing device
Secure doors in the ship's side plating
*Give the meaning of the following symbol
Start ventilation of the rescue boat
Start air supply
Start air filling of the davit launched liferaft
Start ventilation of the lifeboat
Give the meaning of the following symbol
Survival craft portable radio
Survival craft distress pyrotechnic signals
EPIRB
Radar transponder
What is most important for crew members when preparing for emergencies?
That people listen to orders given
That people are well trained
That people know where to find designated equipment
That people know where to muster
*Which one of the following items has to be included in an abandon ship drill?
Starting and operating radio life-saving appliances
Launching and recovery of a survival craft
ensuring that passengers and crew are made aware of the order to abandon ship
Manoeuvring the lifeboat in the water
When should gangway nets be rigged?
When it is deemed necessary by the Master or the Chief Officer.
Whenever the gangway is rigged.
Whenever the gangway is regarded as unsafe.
Between sunset and sunrise.
What kind of safety equipment should be in place in connection with a grinding wheel?
Welding mask.
Shield.
Goggles and shield.
Goggles.
The majority of medium speed main propulsion installations incorporate a reduction gearbox between the engine and the propeller shaft. Why is this arrangement usually required?
So that the engine can be more easily reversed.
So that the engine can be coupled to a controllable pitch propeller.
So that the propeller operates in a relatively efficient speed range.
So that the engine can also drive a shaft alternator.
What is the purpose of the purge gas condenser fitted to some liquefied gas carrier reliquefaction plants?
It is used to condense all of the cargo vapours that have been used in purging a cargo tank.
It is used to generate the cargo vapours required for purging the cargo tanks.
It is used to condense out any nitrogen or inert gas that has collected in the main condenser.
It is used to condense out any cargo vapours which have passed through the main condenser with incondensable gases.
It is important that tools are in good condition when they are being used for maintenance. Incorrectly sharpened tools can be dangerous. Which of the following tools can be safely sharpened using a pedestal grinder?
Steel drill bit.
Brass chisel.
Hacksaw blade.
Wooden wedge.
What is the purpose of the "Mud Box" on a tanker?
It is at the end of the pipeline in the tank and restricts any particles and solids entering the pipeline system.
It is the waste collection box in the store rooms.
It is the box near the windlass to deposit the mud from the anchor and anchor cables.
It is the box under the manifold to catch spills when connecting the discharge or loading hose.
This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show changes in the voltage V(C) when the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?
Figure 4
Figure 2
Figure 1
Figure 3
What is the main problem associated with a bulk cargo suffering moisture migration and developing a flow state
The may block up bilges
The cargo pile will remain stable
The cargo becomes semi-liquid and shifts easily causing major stability problems
The cargo may produce carbon dioxide gas
Which of the following is part of the spill response equipment inventory?
Hand cleaner
Sorbents
The pressure washer
Chipping goggles
What is difficult to attain on a partly loaded general cargo vessel?
Stability requirements under SOLAS
Minimum bow height, required by SOLAS
Trim by stern
Sufficient propeller immersion and a comfortable GM
How should packaged units be secured below decks?
By means of adequate timber shoring and wedging for individual units
By means of adequate wire lashings for units grouped together
By making a chock-a-block stow so that units will not shift
By means of adequate timber shoring and wedging for units grouped together
Which of the following kinds of fish is the least perishable in cold storage?
Herring
Salmon
Halibut
King klip
What is the time limit for abandonment of passenger ships?
There is no time limit
30 minutes from the time the abandon ship signal is given
2 hours from the time the abandon ship signal is given
15 minutes from the time the abandon ship signal is given
Your vessel is a tanker in ballast and the two vessels are interlocked after collision. You have already made clear that all people are well taken care of and you will try to separate the two vessels. What should be your greatest concern?
That you have your permission from the company to do so.
The exact time of the collision.
If the vessels separate, the other vessel may run away and you will be the only one to blame.
That the separation may cause sparks that can possibly ignite the oil or any other flammable substances.
What action should be taken if machinery does not function properly?
If machinery does not function properly, its condition should be noted and plans for further action developed together with the Chief Engineer
If machinery does not function properly, the operational parameteres should be verified and the machinery stopped
If machinery does not function properly, it should be serviced immediately
If machinery does not function properly, the Chief Engineer should be consulted
Why is it important to slow down the main engine RPM while water-washing the turbocharger?
To protect the bearings
To protect the blower side
Not to damage the rotor blades
To protect the exhaustgas economizer.
Which of the following groups of chemical cargoes is particularly susceptible to polymerisation, especially through exposure to heat?
Aliphatic Amines.
Paraffins.
Aldehydes.
Monomers.
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.
Information about your ship’s security arrangements and procedures is stored electronically. Which of these measures will help safeguard it from potential threats?
Work history verification
Encoded email messages
Protective markings
Passwords
The vessel is steaming off the coast when the engine room informs the bridge it must stop engines immediately. Shortly afterwards they informed the bridge they would need a least three hours to fix it. Which of the following actions would be the most suitable taken by the bridge?
Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after three hours.
Display the NUC signal and keep a good lookout
Display the NUC signal, maintain the watch and ask the Engine room to be a quick as possible
Display the NUC signal, maintain the watch and wait for further developments.
This graphical symbol is a logic gate. Which gate?
OR
AND
NAND
NOR
On the figure 4 possible definitions of the term "CENTRE LINE" are given. Which one is the correct one?
Centre line is given by D on the figure
Centre line is given by B on the figure
Centre line is given by A on the figure
Centre line is given by C on the figure
The seating surface of a superheater handhole door on a boiler has been damaged due to leakage of superheated steam leaving a cut across the surface. Which repair method, from the options given, would be the most effective?
Machine the surface until the cut has been removed and a new full seating area is formed.
Fit a more pliable gasket to take up the irregularities in the surface.
Build up the cut with weld and re-machine the seat.
Fill the cut with plastic metal and file smooth.
During operation of the main engine, the exhaust temperature increases on one of the cylinders. The turbocharger starts surging and smoke from the turbocharger inlet air filter occurs. What is the probable cause?
Scavenge box fire
Turbocharger failure
Fuel valve stick in open position.
High back pressure in the exhaust system
On a General Cargo vessel, the placards and labels on containers and pallets containing dangerous goods (IMDG Cargo) must be marked with what information ?
IMO Class, UN Number
Number of individual pieces of cargo
UN number
Weight and volume
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
What is the function of the "scrubber" in the inert gas system on an oil tanker?
To prevent backflow of dangerous vapours to the machinery space.
To blend the flue gas and air and achieve the desired concentration levels for tank inerting.
To wash and warm the flue gas.
To quench, cool and clean the flue gas.
What is the minimum value of the GM under the international Load Line Rules?
0,25 m.
2,0 m.
1,5 m.
0,15 m.
Polymerisation may be a problem with some liquefied gas cargoes such as vinyl chloride and ethylene oxide. What is the definition of polymerisation?
Polymerisation is when liquids cool down and become more viscous.
Polymerisation is when single molecules of the same compound join together to form a new compound usually with a higher viscosity.
Polymerisation is when the molecules of a compound split and form a new compound.
Polymerisation is when molecules of two or more different compounds join together to form a new compound.
A piston rod retaining nut needs to be tightened during maintenance on the main engine. Which of the given methods should be used to ensure it does not come loose in service?
Tighten it 10% more than the manufacturer's recommendation using a torque wrench.
Tighten it to the manufacturer's recommendations using a torque wrench.
Tighten it as tight as possible using a spanner and extension pipe.
Tighten it as tight as possible using a flogging spanner and a hammer.
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
As ships get older which hatch covers need special attention when battening down for sea passage?
The aftermost hatch covers
The midships hatch covers
The foremost hatch covers
Hatch covers abaft the accommodation
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
The sign on the image indicates:
Location of lifebuoy with self-igniting light and self-activated smoke signal
Rescue zone
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 where you should throw lifebuoys in case a man- over-board situation occurs.
What do you understand by: Let go the port anchor?
Let go the port anchor means: slacken the port anchor cable
Let go the port anchor means: put the port windlass brake in gear
Let go the port anchor means: open the port windlass brake
Let go the port anchor means: put the port windlass brake in gear and lower the anchor
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.
To whom should you report when the bow port or stern ramp is closed and secured?
The Safety Officer
The Master
The Chief Engineer
The bridge/ Officer on watch
To which of the following ratios are transverse accelerations related?
Ship’s breadth divided by LCB
Ship’s breadth divided by the maximum righting lever
Ship’s breadth divided by GM
Ship’s breadth divided by the distance between cargo units and the ship's centreline
What does heaving result in?
Shearing of container twistlocks
Vertical accelerations acting along container corner posts
Tipping of containers
Longitudinal accelerations acting on hatch pontoons
Emergency instructions in appropriate languages shall be posted in passenger cabins. Which information shall as a minimum be included in the emergency instructions?
Where to find thermal protective aids
Name of cabin attendant
Escape routes and alarm signals
The method of donning life-jackets, escape routes and alarm signals
Where on board a ship will cargoes experience the least accelerations?
At the intersection of the fore and aft, athwartships and vertical axes of the ship
At the intersection of the fore and aft and vertical axes of the ship
At the intersection of the athwartships and vertical axes of the ship
At the intersection of the fore and aft and athwartships axes of the ship
What does ISPM stand for?
International Safety Procedures Manual
International Standards for Port Management
International Safety Policy Model
International Standards for Phytosanitary Measures (code)
What is meant by the term 'hold space' in relation to a liquefied gas carrier?
The space where the ballast tanks are situated.
The space enclosed by the ship's structure in which a cargo containment system is situated
The space between the individual cargo tanks.
The space where the cargo is carried.
"…a ship… …intended to transport products with appreciably severe environmental and safety hazards which require significant preventative measures to preclude escape of such cargo. Usually the ship is of double-hull construction, with a variety of tank sizes / capacities." What is this the definition of?
A chemical tanker for the purposes of the 1996 IMO directive MEPC/2.12 circ. on "Mandatory Reporting Requirements for Ships Carrying Dangerous or Polluting Goods".
A type I chemical tanker as per the IBC Code.
A type II chemical tanker, as per the IBC Code.
A parcel chemical tanker as per the IACS Construction Regulations.
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.
In oil cargo quantity calculations, a specific figure derived from historical analysis of discrepancies between ship and shore figures is often considered when the master is comparing a load total against that shown on the Bill of Lading for the current operation. How is this figure referred to?
Vessel Discrepancy Index.
Vessel Experience Factor.
Ship's Calculation Reference Factor.
Intermediate Comparison Figure.
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.
In which locations will Ro-Ro units be stained when a vessel is at sea?
Units stowed on ramp slopes
Units stowed near watertight doors
Units stowed in way of fan duct exits
Units stowed near gas tight doors
What term is applied to the running of a number of cargo pumps together to discharge a homogeneous cargo from multiple tanks simultaneously up a common discharge line?
Series pumping.
Integrated discharge.
Parallel pumping.
Simultaneous discharge.
Passenger ship engaged in international voyages shall carry through a muster for all passengers. At what latest time after embarkation shall the muster take place?
Before departure
No time limit
4 hours after the passengers embarked
Within 24 hours after the passengers embarked
Where is "AFT", in the figure?
Aft is B, in the figure
Aft is D, in the figure
Aft is A, in the figure
Aft is C, in the figure
On a RoRo vessel, where will escaping gasoline vapours settle in a cargo hold? If the forced ventilation system is shut down
At deckhead level
At the lowest levels
At all levels
A two step controller (open/close) has failed and the only available spare controller is a P+I controller. Select, from the options given, how the P+I controller could be set up to achieve approximate two step control.
Set the proportional band to maximum width and the integral action to minimum (repeats per minute).
Set the proportional band to maximum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to minimum (repeats per minute).
Simple gauge glasses for indicating the boiler water level, such as the one shown here, are often fitted to low pressure boilers. What would be a reasonable schedule for blowing through the gauge glasses?
Once an hour
Once a month.
Once a day
Once a week
When securing cars on a RoRo vessel, what is the preferred lashing angle in any direction from the lashing point?
20 degrees
45 degrees
25 degrees
15 degrees
When there is doubt about the freshness of the atmosphere in ro-ro cargo spaces, what action should be taken?
Supply filter masks to all crew working on ro-ro deck
Ro-ro decks are always ventilated in advance of an operation
Arrangements should be made for testing of the atmosphere to ensure maintenance of 21% oxygen and a carbon monoxide content below 50 ppm in the atmosphere of the space
Open both bow- and stern doors
What is the possible concern if fuel tanks on a Bulk Carrier, which are close to cargo spaces containing grain, are excessively heated?
The grain cargo may produce methane gas
No damage should occur
The grain cargo may be heated and damaged
The cargo may liquefy
What means of communication shall be provided to each member of the fire patrol?
Telephones in public spaces
Emergency telephones and Public Address system
A two-way portable radio
A mobile telephone
What must be done once the cargo holds of a General Cargo ship have been opened to discharge logs?
Carry out mechanical ventilation
Keep the holds open for as long as possible before allowing anyone to enter
Commence discharging immediately
Measure oxygen levels prior to allowing persons to enter the hold
Cargo compressors are fitted on LPG carriers as part of the cargo and vapour handling system. Why is it important to 'bar over' a piston type LPG compressor before starting it up?
To prove the oil pump is working.
To avoid low suction pressure during start up.
To reduce the electrical start up load..
To make sure there is no liquid in the cylinders.
"Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations , are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment". What is this a definition of?
A liquid cargo that is prohibited for carriage in vessels other than type 1 chemical tanker, as defined in the INC Code.
A category "Y" substance as identified in the revised MARPOL Annex II.
A category "X" substance as identified in the revised MARPOL Annex II.
An NLS as defined in ISGOTT revision V.
What name is given to the pickled, fermented vegetable condiment that accompanies almost every Korean dish?
Korchee.
Kebchee.
Kalachie.
Kimchee.
During the survey of Long Range Identification and Tracking (LRIT) equipment, which document must be available to the surveyor to demonstrate compliance with SOLAS?
The Certificate of Compliance with SOLAS V/19-1, bearing the serial number of the equipment installation.
A report giving the result of the Performance Test, issued by the manufacturer in compliance with the Flag State Authority requirements.
A report giving the result of the Conformance Test, issued by the Classification Society on behalf of the Flag State Authority.
A Statement of Installation and and Testing by the Approved Service Provider in compliance with SOLAS V/26-4.
One of the Main Engine cooling pumps is down for maintenance. The rest of the cooling pumps are operating near full capacity with minimum margins on the maximum temperature limit. What should be the correct action to take with regard to UMS operation?
Operate the engine room on manual mode until the maintenance is completed and the cooling pump is operational and switched to stand-by mode.
Arrange frequent checks of the condition during the night otherwise operate in normal UMS-mode
Arrange with a rating "on watch" in the engine room for the UMS period.
Hope that the alarm function and automatic temperature regulation will function correctly and switch to UMS-mode as normal
What is the required number of temperature indicating devices in cargo tanks?
One device in each tank.
At least two devices in each tank.
There is no requirement to number of devices.
At least three devices in each tank. One placed at the bottom of the tank, one in the middle of the tank and one near the top of the tank.
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