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Heim Online-Tests CES Chemical tanker Deck Support Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
Online-Test: Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
Online-Test
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Regular ‘updating’ of a vessel’s position in an Inmarsat-C installation is among others things important:
To guarantee reception of NAVTEX-reports in areas where normal NAVTEX-facilities are not available
To guarantee reception of NAVTEX-reports
To guarantee assistance in emergency
To restrict NAVARAE-reports
What possible reason could there be for the identification mark associated with a Racon not being visible on the radar screen?
The radar may be suppressing the mark with application of the Interference Rejection control.
The racon may not be transmitting a pulse.
All of the suggested answers.
The transmitted radar frequency may not trigger the Racon transmitter.
How many, minimum lines of positions are needed to decide a position using the decca system?
1line of position.
6 lines of position.
2 lines of position.
8 lines of position.
When a vessel is to experience a long tow across an ocean, what would be the best system of connecting the tow?
Towing Hawser from a deep sea tug through the centre lead forward and made fast on the nearest mooring bits forward.
Wire from a deep sea tug made fast through a shoulder lead on the vessel's leeward side
Wire from a deep sea tug through the forward centre lead of the ship and made fast onto several mooring bits on the forecastle
Wire from a deep sea tug connected to the ship's anchor chain.
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
A ship is equipped with a right-handed fixed pitch propeller, which when going from Full Ahead to Full Astern will make the ship sheer to starboard. Can anything be done to reduce this change in heading?
The rudder should be kept amidships when going astern and there is little that can be done to reduce the swing to starboard
The rudder can be put from side to side in a "Rudder Cycling" movement.
The rudder can be put to Hard to Port to reduce the water flow to the right side of the propeller
The rudder should be put Hard to Port to reduce the water flow to the left side of the propeller
On a RoRo vessel, when loading Double Stacked containers on Maffi Trailers how many twist locks should have used between the 2 containers
three in total 2 at the door end 1 at the opposite end
One at each end 2 in total
One on every corner 4 in total
The heat required to raise the temperature of 1 kg of any particular substance 1°C is called:
Heat transfer coefficient
Latent heat
Specific heat
Adiabatic heat
If an inhibitor is added to an oil cargo, which of the following is a summary list of items to be included on its accompanying certificate?
Inhibitor name; amount added; date added; period of efficiency; precautions if voyage length exceeds that period; eventual temperature limitation.
Inhibitor class; amount added; date of expiry; minimum period of optimum efficiency; precautions to be taken when added; minimum temperature requirement.
Inhibitor class; percentage blended; date added; maximum period of efficiency and applicable temperature limits; maximum storage period on board; contact number of manufacturer.
Inhibitor name; percentage applied; date of expiry; precautions to be taken on voyage and interval of application; maximum temperature at which continuously effective.
Which of the given statements can be considered as the most accurate according to the IMO Gas Codes and other LNG industry standards?
Methane is neither toxic nor an asphyxiant gas.
Methane is considered as presenting a flammable hazard and may also be an asphyxiant.
Methane is considered as presenting both flammable and toxic hazards.
Methane is considered as presenting a toxic hazard and may also result in a chemical burn in contact with the skin.
In discussing the characteristics of an oil cargo, what is the "cloud point"?
The temperature at which a liquid hydrocarbon begins to congeal and take on a cloudy appearance, due to the bonding of constituent paraffin compounds.
The depth within a cargo above which no waxy solids are entrained.
The temperature at which an oil product begins to emit vapours which can be observed in a spectroscope due to the volume of solid particles extracted during evaporation.
The surface pressure at which vapours from an oil cargo overcome gravity and friction and are expelled from the containing compartment.
Which is the "TUG TOWING LINE', in the figure?
The Tug Towing Line is indicated by B, in the figure
The Tug Towing Line is indicated by D, in the figure
The Tug Towing Line is indicated by C, in the figure
The Tug Towing Line is indicated by A, in the figure
To minimise the risk of damage what type of tools should be used to clean boiler burner tips?
Brass tools.
Steel tools.
Wooden tools
Any kind of tools that are available.
What is the most important reason for separating a panicking passenger from the group?
It is easier to calm the person down in private.
You want to protect the panicking person as much as possible.
You don't want other passengers to hear if you have to become very strict with the panicking person.
Panic can spread and affect other passengers.
How many sub-classes are there for IMDG Class 4 (Flammable solids) cargoes?
2
4
5
3
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.
Why do we use oil free compressors on the cargo side in a cargo cooling plant?
We use oil free compressors in the cargo side to avoid oil spill into the cargo.
We use oil free compressors in the cargo side because they have less RPM than the oil lubricated compressors.
We do not use oil free compressors in the cargo side because the compressors need to be lubricated.
We use oil free compressors in the cargo side because the cargo is cold and to cool down the compressor.
What requires close attention during portable car deck inspections?
Safety markings
Load density markings
Abrasions over the decks' surfaces
Signs of cracks in way of deck supports
The type of pump used for delivering the oily-water mixture to an oily-water separator governs considerably the degree of contamination in the effluent. What type of pump would be best suited not to churn the supply and produce small oil droplets (less than 200µm) dispersed throughout the water?
Screw.
Mixed flow (part axial, part centrifugal).
Axial Flow.
Centrifugal.
What is a Marine Evacuation System?
Liferafts supported by Fast Rescue Boats and Lifeboats
Evacuation Chute(s)/Slide(s) and Liferafts
Helicopter evacuation
Assistance from other ships
When lowering a RoRo Cargo Side or Stern Ramp what must be ensured ?
The ramp surface must be clean
The ramp must be lowered by the duty officer only
The vessel is securely moored and there is nothing beneath the ramp
What are the type of signal output is derived from a NiCr/Ni thermocouple?
mA.
Ohm.
mV.
Watt
Which part of the crankshaft of a modern large two stroke diesel engine is most likely to be the origin point for crack initiation during service and therefore needs the greatest attention during maintenance inspection?
The oil holes.
The keyways.
The fillet radii.
The dowel pins and dowel holes
What must be ensured immediately after lowering and securing the stern ramp on a RoRo vessel?
Control levers should be locked in the ‘neutral' position
Power supplies for ramp operations should be turned off
Pilot indicator lights on the bridge should be working
Control levers should be in the ‘neutral' position
You are going to overhaul a centrifugal pump in accordance with the PMS. The pump is running under optimal conditions and normally operated. Which of the following parts are expected to deteriorate during normal operation and thereby be due for renewal?
The impeller and the impeller fastening nut.
Ball bearings on the pump shaft, and wear rings on pump housing or impeller.
The distance pieces.
The shaft itself .
Which of the following certificates would always be required on a general cargo ship?
Certificate of Fitness for Dangerous Chemicals in Bulk
Noxious Liquid Substances Certificate
Safety Equipment Certificate
Passenger Ship Safety Certificate
What measures should be taken in order to avoid flammable gases forming on top of coal cargoes on a Bulk Carrier?
Ventilation to be continuous?
Ventilation to be carried out as indicated in the IMO solid Bulk Cargo Code
Cargo to be ventilated by opening hatch covers at sea?
Cargo not to be ventilated?
In a low pressure auxiliary boiler, what would be considered to be the maximum allowable chloride level of the boiler water?
300 PPM.
1000 PPM.
50 PPM.
600 PPM.
The piston rod of a large two stroke diesel engine has been damaged and is heavily scored in way of the piston rod gland (stuffing box). It has been decided that it is economically viable to recondition the rod at a shoreside facility. Select, from the options given, the most suitable repair method that should be used?
Recondition the rod by build up using electric arc welding and surface grinding.
Recondition the rod by machining away the score marks and fit undersize rings to the stuffing box.
Recondition the rod by surface grinding and build up using plasma spraying with metal similar to the original.
Recondition the rod by surface grinding and build up using chrome plating to give a harder running surface and avoid similar damage in the future.
A standard convention for a 4 deck reefer vessel is to designate the decks A to D from upper to lower deck. Decks A and B common as are C and D with a gas tight seal between B and C. Apples are to be carried in decks C and D with bananas in A and B. Which of the options is the best to avoid the risk of crossover of temperature and respiration between the two cargoes?
Create a pressure differential with a higher pressure in decks A and B.
Create a pressure differential with a higher pressure in decks C and D.
Run the cargo fans intermittently in one of the spaces.
Operate the two spaces at equal pressures as the cargoes are compatible.
Where would you look for a summary of the important safety and handling information on a particular chemical cargo loaded on your ship?
The IBC Code.
The Master's Standing Orders.
The Company Cargo Handling Manual.
The Material Safety Data Sheet.
What is normally meant by the term 'flammable range' in relation to liquefied gas cargoes carried at sea?
It is the maximum distance from a flammable mixture of the gas that an ignition source could be to still cause the mixture to ignite.
Range between the minimum and maximum concentrations of gas in air which form a flammable mixture.
It is the minimum distance from a burning mixture that other objects or personnel need to be to avoid being burnt.
It is the vertical height that the flames of the burning gas would reach in still air.
An OBO or O/O carrier, due to the movement of liquid in a cargo hold during rough weather, the possibility of liquid entering the inert gas piping is great. To avoid this U-bends are sometimes fitted on the line emerging from the hatch coaming. These bends generally have a drain cock at the bottom. These cocks should be:
Opened and checked every day irrespective of the weather?
Opened after rough weather or before loading/discharging or transferring cargo to check for liquid accumulation and contents drained into a drip pan.
Never opened?
Left open during rough weather to prevent liquid being trapped in the U-bend and blocking the line?
What collective culinary term is given to the internal organs of a butchered animal, such as the heart, kidneys, liver, tripe, etc?
Glands.
Offal.
Intestines.
Oval.
Methane/air mixtures in the range of 5.3 - 14% are flammable and have an auto ignition temperature of approximately 595 degrees C. What is meant by the term 'auto ignition temperature'?
It is the lowest temperature at which flammable gases are given off by the mixture.
It is the lowest temperature at which the mixture will ignite when a flame is applied to it.
It is the lowest temperature of the source of ignition required to ignite a flammable mixture.
It is the temperature at which the mixture will spontaneously ignite and continue to burn without an external source of ignition.
Anyone who makes or permits a false entry to be made in the logbook shall be punished by imprisonment of up to 1 year according to:
The International Maritime Organization's Act of Maritime Activities
The Ship Safety and Security Act - Section 65.
Commissions of Inquiry of Maritime Activities
The Maritime Act
What would you do if you saw a container being damaged during loading operations?
Note the date and time of occurrence, container number and if possible take photographs
Call the duty officer
Inform the relieveing watchkeeper
Inform the master
What is the recommended range for the pH-value for the water in a diesel engine cooling system engine cooling water be maintained?
Above 10
Between 5 and 7.
Between 7 and 10.
Below 5.
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.
By what means can we monitor and control the integrity of the hull?
Let experienced personnel close and secure doors and ramps
Automatic detection systems, television surveillance and patrolling
Documented operating procedures
The chief officer is responsible for monitoring the integrity of the hull and superstructure at all times
Where should the vehicle belonging to a disabled person be placed?
Preferably near an elevator or a place where you have easy access to the stairways
Near the stairways
In the after part of the car deck
As close to the bow door as possible to avoid any traffic jam during discharging
In a fresh water tank we are using a pressure transmitter with a range of 0-0.5 bar / 4-20mA for level measurement. The transmitter is for different reasons installed 30 centimeters from the bottom of the tank, and the tank is 5 meters high. What will the output from the transmitter be when the tank is full? (Pending no calibration is made)
30 mA
19.04 mA
20 mA
21.2 mA
In what kind of measuring equipment might we find a Bourdon-tube?
In a temperature transmitter.
In an A/D converter.
In a pressure transmitter.
In a flow metre.
Which mooring lines are visible in this image?
The forward headline and breast rope are visible in the image
The forward back springs are visible in the image
The forward breast lines are visible in the image
The forward head lines are visible in the image
Why do we use stabilisers on passenger ships?
To adjust the trim of the vessel
To decrease the rolling angle of the vessel
To increase the intact stability
To decrease the dynamic stability
Jim
g
d
a
h
A non-reversing medium speed diesel engine is used to drive a controllable pitch propeller through a pneumatic clutch and reduction gearbox. The engine has been tested and brought up to operating temperatures on engine control. Which of the options given would be the preferred status of the engine and associated equipment when it is handed over to bridge control?
Engine stopped with clutch disengaged and propeller in zero thrust position.
Engine running, clutch disengaged, propeller at zero thrust.
Engine running with clutch engaged and propeller in ahead position.
Engine stopped with clutch disengaged and propeller at zero thrust.
The holding down arrangement for a large 2-stroke diesel engine consists of steel chocks and hydraulically tightened holding down bolts. When carrying out routine maintenance of the arrangement which method, from those given in the options, should be adopted to check that it is in good order.
Measure the length of the holding down bolts to make sure they have the correct extension for the recommended tension.
Tap the holding down bolts with a hammer to see if they 'ring'.
Tap the steel chocks with a hammer to see if they move.
Check the hydraulic release pressure for the holding down bolts.
Indicate the correct name for the part marked on the sketch:
Push rod
Connecting rod
Rocker
Main bearing
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.
When unloading a generator, it is necessary to gradually decrease the load in order to avoid:
Undue overcurrent
Undue overload on the switchboard.
Undue overspeeding.
Undue temperature rise.
On a RoRo vessel, which of the following is likely to tip over in heavy weather?
Cargoes with low centres of gravity
Flatbed trailers
Vehicles
Cargoes with high centres of gravity
From which locations is it normally possible to close watertight doors?
A watertight door can only be closed by a control adjacent to the door
Watertight doors can be closed locally and also a remote control station within the accommodation
Watertight doors can be closed adjacent to the door and remotely from bridge and also one emergency remote control station
Watertight doors can be closed from the bridge and an alarm sounds at the door
How is the pressure in the cargo containment system of a conventional LNG carrier controlled during normal operation?
By using the boil-off gas as fuel for the ships propulsion plant.
The gas vapour is evacuated to the atmosphere via the vent-line.
By varying the MARVS.
The gas vapour is taken from the vapour header and passed through the demister and into the LD Compressor and evacuated to the atmosphere via the vent mast.
In what kind of atmosphere should tank washing be carried out onboard vessels with inert-gas system?
Steamed to a humidity of at least 75%
After an electric fan have been blowing fresh air into the tank for a minimum time of one hour.
After the bottom has been covered with salt water.
Inerted to less than 8% oxygen(IMO).
Why is is especially necessary to continue to ventilate the tank and to continuously monitor the atmosphere when working inside a cargo compartment which still contains vegetable oil residues?
For a tank which has contained vegetable oils, if it is continuously ventilated an Enclosed Space Entry Permit is not required. However, for anyone entering the compartment without a permit in place, they must carry an oxygen meter which continuously monitors the atmosphere.
Forced ventilation will create a hard "skin" on the residues, making them safer to stand on. Testing the atmosphere will indicate when this skin has formed, as no further vapours will be released.
Vegetable oils are commonly washed using very hot water. Forced ventilation will make the temperature inside the compartment better to work in. Monitoring the atmosphere will indicate if the humidity is increasing.
Because the decomposing residues continue to release hazardous gases, reducing the levels of oxygen in the tank and making the atmosphere potentially dangerous.
When shall the engineer officer in charge of a watch be readily capable for operating the propulsion equipment?
When a hurricane may be expected.
When there are needs for changes in the ship's course.
When men are working aloft.
When the machinery spaces are in the manned condition.
How should chemicals and harmful substances be stored on board?
In a gas-tight locker close to the bridge
In the central store or in the engine room
In a separate locker. The locker shall be clearly marked, locked and ventilated.
In a locker preferably on boat deck. The locker shall be clearly marked.
Too low exhaust temperature in one cylinder becomes because of:
Water leakage in the cylinder.
Faulty fuel injection pump.
Any of the others.
Too low admission on the fuel injection pump.
What is essential to ensure that efficient stripping of ballast tanks on a Bulk Carrier can be achieved?
A good stern trim is maintained during de- ballasting operations
The trim of the vessel is not important
A trim by the bow is required
The vessel must be maintained at an even keel
During maintenance work on the main engine a problem arises regarding the lifting of a main component in that the manufacturer's instructions ado not apply to the engine as fitted and present a hazard. In which of the information/record sources given in the options, is it most important to record the information relating to this anomaly?
Engine room planned maintenance schedule.
Engine room log book.
ISM procedures in the ship's safety manual.
Safety officers report.
It is common practice to connect a resistor is connected over an alarm contact (see diagram) in many applications. Why is this connection used?
To stabilise power consumption.
To avoid sparks on the contacts when opening and closing.
Enable measuring the total resistance of the circuit.
To monitor the cable/wires for break.
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
What precautions should be taken with Ro-Ro cargoes when crossing the oceans in winter?
Additional cargo lashings should be applied at the loadport
The ship should avoid areas of heavy weather
All of the alternatives
The Declaration of Security:
Details a ship’s security measures.
States the reporting procedures to government contact points.
Identifies the security responsibilities of shipboard personnel.
Addresses the security requirements shared between ships or between a port facility and a ship.
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.
What distinguishes a "parcel" chemical tanker from other designs?
Such a vessel is fitted with interactive computerised gauging, pumping, valve control and alarm systems for each tank, enabling all data for a single cargo to be concentrated in a single computer display.
Such a vessel is automatically able to achieve segregation of hazardously reactive noxious liquid substances by its design alone.
Such a vessel is fitted with a highly accurate tank gauging system, enabling it to deliver multiple parcels to different receivers from within the same cargo tank.
Such a vessel has a higher number of relatively small capacity, independent cargo tanks, each with its own line and pump, enabling it to carry and deliver multiple grades simultaneously.
Under which IMDG Class is fishmeal carried when not treated with anti-oxidant?
Class 9 - Miscellaneous dangerous substances and articles
Class 4.1 - Flammable solid
Class 4.2 - Flammable solid
Class 5.1 - Oxidizing substance
How many two-way VHF radiotelephone apparatus shall be provided on board a passenger ship of 500 gross tonnage and upwards?
2
One for each survival craft
It is required to have a fixed two-way VHF fitted in a survival craft
3
During 'dry lay up' of a main water tube boiler it is necessary to maintain dry, low humidity environment in the water spaces. Which of the chemicals given in the options would best achieve this condition?
Sodium hydroxide.
Calcium phosphate.
Silica gel.
Hydrazine
Which inert gas systems use only gases from the ship's main or auxiliary boilers?
The inert gas generator
Nitrogen generator
Combination - inert systems
The flue gas plant
We say the centrifugal pump cavitates when:?
When the liquid accelerates from the suction side.
When the NPSH is variable.
A reduction of the flow.
We have negative pressure on the inlet side of the pump.
How should the Bo's'un prepare for anchoring?
The Bo's'un should prepare for anchoring by hoisting the anchor ball
The Bo's'un should prepare for anchoring by walking back the anchor to five shackles in the water
The Bo's'un should prepare for anchoring by applying the windlass brake, then disengaging it
The Bo's'un should prepare for anchoring by lubricating the spurling pipe
If the oxygen content in an enclosed space is less than 20% and a non-essential routine inspection of the space is due which of the following is the correct course of action?
Postpone the inspection until the correct oxygen content can be achieved.
Carry out the inspection as quickly as possible.
Wear breathing apparatus while carrying out the inspection.
Release oxygen into the space from an oxygen cylinder.
What is the purpose of automatic trip system onboard, and how does it function?
Automatic trip is to avoid over pressuring of cargo tanks, 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.
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 tanks becoming overloaded; the trip function is often initialised by a float switch.
What is the disadvantage of using High Tensile Steel (HTS) in ship construction?
Failure without warning
Enhanced vibration in HTS areas
Low elasticity
Diminished cargo carrying capacity
What prevents hatch cover panels from lifting in a seaway on a General Cargo vessel?
The hatch compression bars
The hatch cover hydraulic system
The hatch cover cleats and cross-wedges
The hatch cleats
Why is it important to recognize the language of the passengers?
Enables you to communicate with them during normal operation.
Enables you to inform all passengers about arrival time.
So that you are able to address all their needs.
Enables you to communicate with them during normal operation and in an emergency.
Which plan shows the position of the vertical and longitudinal centres of gravity for each cargo compartment?
Lines Drawing
General Arrangement plan
Capacity plan
Shell Expansion plan
Inspection of the LP turbine rotor reveals some erosion damage to the blading on the final stage. Which of the given options is most likely to be the cause of this condition?
Steam inlet to the turbine superheat temperature low.
Steam inlet to the turbine pressure too low.
Excess LP bleed steam take off.
Total dissolved solids in the boiler too high.
As per SOLAS every fast rescue boat shall be provided with:
Thermal protective aids for the number of persons the boat is permitted to accommodate
Emersion suits for each person the boat is permitted to accommodate
3 Thermal protective aids
Thermal protective aids for at least 10% of the persons the boat is permitted to accommodate or two, which ever is greater
What is the procedure if a tank lorry containing dangerous goods is not clearly marked?
As long as the driver looks ok, load the cargo
Ask the driver to write a declaration of contents and load the vehicle
Load it, usually tank lorries are not clearly marked
Refuse to load the vehicle
A 3-phase cage rotor induction motor requires protection by a time delay overload trip. What is the reason for this?
It will tolerate fault conditions during start up
Fuses act too quickly
Fuses act too slowly
It will allow for inrush current or motor specific faults
In which cases shall side scuttles in passenger ships be so constructed that they cannot be opened without the consent of the master of the ship?
Where the height of the side scuttles go through more than two decks
Where the sills of the side scuttles are below the margin line
Where the sills of the side scuttles are less than 500 mm above the deepest load line
Where the sills are mounted below the bulkhead deck
What is one of the main features of the cylinder lubricating oil used in large 2 stroke marine diesel engines which normally operate on heavy fuel oil?
It is a pure mineral oil without any special additives.
It is strongly alkaline.
It is strongly acidic.
It is neutral with a pH value of 7.
Which of the following requirements regarding embarking, disembarking and stowage of vehicle on ferries corresponds to present regulations? (NSCL 4/11.4).
In ships where passengers and cars are using the same access (ramp/gangway) embarkation/disembarkation of passengers and cars shall not take place simultaneously.
Vehicles shall at all times be secured against shifting.
In rough weather the clearance between the cars shall be increased to 800 mm.
During crossing, ports on the car deck shall be closed and battened.
To what Proof Load is an 80T SWL derrick tested?
85T
100T
95T
90T
Which of the following cargoes can normally be loaded next to each other in the same space of a General Cargo vessel?
Drums of cement and bagged milk powder
Drums of cement and steel pipes
Pallets of pesticides and bagged grain
Rolls new carpets and drums lubricating oils
Some fuel oil and lubricating oil separators have a facility to control the back pressure of the clean oil outlet. What is the purpose of this control function?
To help to maintain the oil/water interface at the correct position.
To control the amount of fuel passing through the separator.
To reduce the amount of sealing water required during operation.
To assist in discharging the bowl contents during the sludge cycle.
On the figure 4 possible definitions of the term "Bridge" are given. Which one is the correct one?
Bridge is given by C on the figure
Bridge is given by B on the figure
Bridge is given by D on the figure
Bridge is given by A on the figure
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