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Maison Tests en ligne CES Bulk Carrier MASTER / Ch-Officer Test online for seamans about Deck department, Management level, Bulk Carrier (CES v6.0)
Tests en ligne : Test online for seamans about Deck department, Management level, Bulk Carrier (CES v6.0)
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Le test comprend 80 questions aléatoires.
Total de questions sur ce sujet : 110
Total de questions sur ce sujet : 110
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What is the required pressure when testing parts of the oil transfer system (hoses, loading arms etc.) if the test is to satisfy US Coast Guard regulations?
Test pressure equal to 1,75 times the maximum allowable working pressure.
Test pressure equal to 1,25 times the maximum allowable working pressure.
Test pressure equal to 1,5 times the maximum allowable working pressure.
Test pressure equal to the maximum allowable working pressure.
Most fuel oil separators working on the centrifuge principle have an automatic start up and sludging facility. Which of the following actions would you expect to occur first during the start up sequence?
Operating water supplied to bowl to close it.
Sealing water supplied to bowl to prevent carry over.
Fuel oil supplied to bowl to fill it.
Operating water drained from bowl to open it.
When is it compulsory to use emergency wires/fire wires for mooring the vessel?
During loading/discharging of persistent/non-persistent oil.
At all terminals where tugs are available.
When requested by the terminal staff.
At the terminals in Canada and USA.
The cold room temperature is almost at the cut out point in a vapour-compression refrigeration system. What should the refrigerant state be just after the evaporator if the system is correctly set up?
Sub-cooled liquid at low pressure.
Slightly superheated low pressure gas.
Cold liquid at high pressure.
Wet vapour at high pressure.
Give the meaning of the following symbol:
Start water-spray.
Secure lifeboat hatches.
Rescue boat with waterproof canopy.
Lower lifeboat to water.
Prior to the lunch break, the Engineer on Duty observes that the operating generator set has an output of 90 %. With regard to operation of the generator, what is the – most important – assumption(s) for him to check before switching to UMS-mode?
Visually checking the auxiliary engine that there are no leaks or other obvious operating failures.
That a secondary auxiliary set is switched to automatic standby mode.
All parameters as listed under the other alternatives.
That all operating parameters of the generator set in operation are normal (e. g. exhaust temp, lube oil pressure, cooling water temperature etc).
When will a ro-ro vessel pitch heavily?
When wave lengths are equal to the ship’s length.
When wave lengths are equal to half the ship’s length.
When wave lengths are equal to twice the ship’s length.
In confused seas.
The turbocharger on a diesel engine is surging. Which one of the following options would be the most likely cause?
The lubrication oil pump is malfunctioning.
Dirty rotor blades and nozzle ring.
Worn out bearings on the turbocharger.
Dirty scavenging air cooler on the air side.
The image shows an indicator diagram taken from a diesel engine cylinder. Which of the following options is the action most likely to identify the fault?
Check that the fuel temperature and viscosity are correct.
Check if the fuel injection valve is partly blocked.
Check if the fuel pump injection is too early, or fuel pump lead is too great, for that cylinder.
Check the exhaust valve.
During crude oil washing of No: 1C tank the duty deck officer reports that the oxygen reading in the tank is 9 %. What should you do?
Stop the washing process and not resume until the oxygen content in the tank below 8 %.
Carry on and ask the engineers to check the inert gas system.
Stop the washing process and not resume until the oxygen content in the tank is below 2 %.
Carry on with the washing as the reading is below 11 %.
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 surface grinding and build up using plasma spraying with metal similar to the original.
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.
I don’t know.
Which of the following options would be a typical differential pressure setting for a main engine slow down in the event of jacket cooling water system low flow?
10 bar.
5 bar.
0,2 to 0,5 bar.
1 to 2 bar.
A combustible gas indicator of the catalytic filament type is used to check the atmosphere in an enclosed space onboard ship. When taking readings in a fuel tank which has been emptied for cleaning the meter reading initially rises and then falls back to zero. What is the likely defect, if any, in the instrument when this type of behaviour is displayed?
The sampling pump is faulty.
The batteries are flat.
The filament is contaminated due to too high a concentration of hydrocarbons.
The filament has burnt out.
When starting air is applied to a diesel engine the engine fails to turn over but is seen to oscillate back and forth. What is the most likely cause of this problem?
Starting air pressure is too low.
One or more cylinder air start valves are stuck open.
An interlock is blocking the air to the starting air distributor.
The automatic valve has failed to open.
What should the expansion valve superheat setting be in order to get the best possible efficiency from a refrigerator evaporator?
25-30 °C.
-18 °C.
40-50 °C.
5-10 °C.
Which ideal heat engine cycle is the vapour-compression refrigeration system based on?
The Rankine cycle.
The Otto cycle.
The Dual cycle.
The reversed Carnot cycle.
Consider a vessel with a 6 cylinder main diesel engine operating with one cylinder out of operation. What would you expect to be the approximate maximum reduced engine load to allow safe emergency operation in this condition?
Approximately 50 % of MCR.
Approximately 70 % of MCR.
Approximately 30 % of MCR.
Approximately 90 % of MCR.
What is the purpose of the air distributor in a diesel engine air start system?
To ensure the cylinder air start valves operate in the correct sequence and for the correct period.
To ensure that the start air is distributed equally to the each of the engine cylinders.
To ensure the air consumption from each of the main air receivers is equally distributed.
To ensure that the automatic valve in the air start system opens and closes at the correct time.
Prior to bunkering operations it is necessary to check the quantity of fuel remaining onboard and that there is sufficient room for the fuel that is to be loaded. What is the best method to use to establish this?
Use the latest figures from the fuel record book.
Do a complete sounding of all fuel bunker tanks.
Sound the tanks which you think might still contain some fuel.
Take a full set of readings from remote content gauges.
In which way may intake of poisonous material occur?
Skin penetration and skin absorption.
Swallowing.
By inhalation.
All mentioned.
What is the colour of the smoke signal used by life-saving stations or rescue units indicating that distress signals are observed in daylight?
Orange.
Blue.
Yellow.
Green.
Most fuel oil separators working on the centrifuge principle have an automatic start up and sludging facility. Which of the following actions would you expect to occur first during the start up sequence?
Increase the scavenge air temperature to minimise the condensate from the charge air cooler.
Reduce the engine load to minimise condensate from the air cooler.
Ensure that condensate drains from the water separator are monitored and operating correctly.
Decrease the scavenge air temperature to minimise the condensate from the charge air cooler.
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 the incinerator is shut down for the duration of the time the vessel is 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.
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.
That all garbage is fully disposed of prior to entry into the SECA and suitable arrangements are made for retention while in the SECA.
There are many types of pumps fitted onboard ship which an engine room rating may be required to assist with the maintenance of. Which type of pump is shown in the illustration?
A reciprocating pump.
A centrifugal pump.
A gear pump.
A scroll pump.
How long after starting a refrigeration compressor should the oil separator return valve be opened?
It should be opened one minute after start up.
It should be opened only when the crankcase oil level is low.
It should be opened once the oil separator unit has warmed up.
It should be opened before start up.
The charge air pressure supplied to a diesel engine, which is normally 2,0 bar, is reduced to 1,5 bar. What will be the likely effect on the engine operation?
The cylinder cooling water flow will increase.
The performance of the engine will be reduced noticeably.
The performance of the engine will be similar to normal conditions.
The turbochargers cooling water flow will increase.
For a ship operating or calling in US waters, COTP can request (OPA-90)?
Participation in all announced drills.
Maximum two drills a year.
Unannounced drills at any time.
Maximum one drill a year.
When trying to reverse a large slow speed diesel engine in the astern direction it cannot be turned on air even though it will start in the ahead direction. What is the likely cause of this problem?
The reversing servo for the fuel pumps has stuck in the ahead position.
One of the cylinder air start valves has stuck open.
I don’t know.
The start is blocked because the air distributor has not moved to the astern position.
A compressed air supply system has two automatically controlled air compressors. When demand is high both compressors are needed to meet the delivery requirements. What is the best method for controlling the compressors to meet a varying, but intermittent demand?
One compressor running continuously with the other on standby.
Start and stop of the compressors controlled by timer switches.
Continuous running of both compressors and the use of unloading devices.
Sequential start initiated by pressure switches set at different switching pressures.
What are we seeing here?
A sailing vessel less than 20 metres in length, displaying the optional combined lantern in lieu of standard sailing lights, seen head on.
A sailing vessel, seen from astern, where the edges of her sidelights are both visible.
A sailing vessel of less than 10 metres in length, displaying the mandatory combined lantern in lieu of sailing lights, seen head-on.
A sailing vessel, at anchor.
How is the prime mover load normally kept to a minimum when starting up an electric driven reciprocating type air compressor?
By using an unloading device to keep the compressor suction valves open until the machine is up to speed.
By keeping the second stage drain valve open until the machine is up to speed.
By using an unloading device to keep the compressor delivery valves open until the machine is up speed.
By keeping the main discharge valve closed until the machine is up to speed.
What types of fire extinguishers shall be used in the engine room?
Fire extinguishers equipped for powder or CO2 only.
Any fire extinguisher with a weight of less than 100 lbs.
Fire extinguishers filled with fresh water only.
Fire extinguishers of the handy-size types only.
Which of the following symptoms would indicate that the filter drier in a refrigeration circuit has become blocked?
A large temperature drop across the drier.
A pressure rise before the drier.
A hammering noise from the drier.
I don’t know.
Which of the given options characterizes a 2-stroke diesel engine?
The piston always has a short skirt.
A 2-stroke engine always has 2 or more turbochargers.
A 2-stroke engine has an air inlet valve in the cylinder cover.
A 2-stroke engine completes a full cycle every revolution.
On board a DSC-call is to be made in case of an OBS. Choose the category:
Ship’s business.
Routine.
Safety.
Don’t know.
In a smoke filled alleyway where will the cleanest air be found, and how should you proceed out?
Near to the deck, crawl out keeping your face as near to the deck as possible.
Sit and wait for the rescue party.
It will be the same in all parts, therefore I would just leave as quickly as possible.
Towards the upper part, stand as tall as possible and walk out.
What is a steering wheel?
A helm used to steer the ship.
A drum for heaving of ropes.
A steering compass.
Another name for a lifebuoy.
How is the prime mover load normally kept to a minimum when starting up an electric driven reciprocating type air compressor?
By using an unloading device to keep the compressor suction valves open until the machine is up to speed.
By using an unloading device to keep the compressor delivery valves open until the machine is up to speed.
By keeping the main discharge valve closed until the machine is up to speed.
By keeping the second stage drain valve open until the machine is up to speed.
What is the main precaution to be taken prior to engaging the turning gear for a diesel engine?
Open the indicator cocks.
Open the crankcase doors.
Transfer main engine control from control room to emergency control console.
Isolate the starting air supply.
The majority of marine diesel engines operate with either a pulse or a constant pressure turbocharging system. What is the main difference between these two systems?
Pulse systems always have a turbocharger for each group of three cylinders.
Pulse systems have all of the cylinder exhausts connected to a common large exhaust gas manifold.
Constant pressure systems only ever have a single turbocharger irrespective of the number of cylinders on the engine.
Constant pressure systems have all engine cylinder exhaust connected to a common large exhaust gas manifold.
Which one of the following items has to be included in an abandon ship drill according to SOLAS regulations?
Manoeuvring the lifeboat in the water.
Launching and recovery of a survival craft.
Starting and operating radio life-saving appliances.
Checking that life-jackets are correctly donned.
Spray painting has been carried out in the engine room while the engine was running, and the turbocharger intake filter was not protected. Which one of the options given is most likely to result from this?
Scavenge air pressure lower than normal.
The revolution of the turbocharger lower than normal.
Scavenging air pressure is higher than normal.
Exhaust gas temperatures lower than normal.
What could be the possible cause of an engine knocking?
Any of the below.
Faults in injection valves, injection too early.
Too big a piston clearance, worn cylinder liner.
The gudgeon pin or big end bearing having too big a clearance.
What is understood by the term “take the helm”?
Take over the steering of the ship.
Take a message to another officer.
Take over heaving of a rope.
Change the place where the lookout is standing.
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 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.
A work rota is established to ensure at least one person is in the engine room at all times while the defects exist.
Which one of the options given is the most likely cause of a diesel engine failing to turn on air when the start signal is initiated?
An interlock or blocking device in the remote starting system is operating.
Start air compressor has cut out due to sufficient pressure in system.
Slight leakage at the indicator cocks.
Auxiliary blower is operating.
The main propulsion diesel engine is normally started by direct admission of compressed air. Which one of the following statements is correct?
Percentage of available flow.
Number of consumers running (pumps, etc).
Percentage of maximum pressure being used.
Temperature of hydraulic fluid.
Which one of the listed requirements regarding fire protected lifeboats do not correspond to present regulations? Water spray systems shall:
Have separate draining pumps of sufficient capacity.
Be arranged for flushing with fresh water and allowing complete draining.
Protect the occupants through a continuous oil fire for a period of not less than 8 minutes.
Have means for “turn on/turn off” the flow of water over the exterior of the lifeboat.
What is the minimum furnace temperature that must be reached during start up before waste material can be introduced into an incinerator?
2 500 °C.
1 500 °C.
850 °C.
2 000 °C.
You have to choose one of the following instruments for measuring pressure in an air bottle in measuring range 0-35 BAR. Which instrument would you install?
U-type H2O manometer.
Bourdon Tube manometer.
U-type Hg manometer.
Bellow type manometer.
According to 33 CFR 156, oil tankers trading in US waters are required to test and document the testing of cargo transfer hoses and transfer pipe system. What is the minimum requirement when testing these components?
That no leakage occurs under static liquid pressure of at least 1,5 times the maximum allowable working pressure.
That no leakage occurs under dynamic fluid pressure of less than 1,5 times the maximum allowable working pressure.
That no leakage occurs at the nominal anticipated working pressure.
That no leakage occurs under static liquid pressure of at least 1,25 times the maximum allowable working pressure.
This circuit consists of two capacitors, C(1) = 6 μF and C(2) = 12 μF, in series. Calculate the equivalent C(S) of the two capacitors.
C(S) = 1,5 μF.
C(S) = 2 μF.
C(S) = 4 μF.
C(S) = 18 μF.
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 4th year.
Every 5th year.
Every 2 1/2 year.
Annually.
How will continuous low load operation influence the time between overhauls, tbo, for the cylinder covers and associated valves of a 4-stroke diesel engine?
Reduce the time between overhauls due to increased fouling.
Increase the time between overhauls since fuel injectors work better at low load so combustion will be improved and the maintenance will be reduced.
No influence at all, the required overhauls are unaffected by operating load.
Increase the time between overhauls since the engine is not working as hard.
Which class of emission is used for FEC NBDP transmissions?
G3E.
G2B.
J3E.
F1B.
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?
Engine speed control.
Altering the compensation needle valve has no effect on speed control.
The governor will hunt resulting in erratic engine speed control.
A change in load will not affect a speed sensing governor.
What should be the status of the suction and discharge valves when starting a centrifugal pump?
Suction valve open and discharge valve closed.
Suction valve closed and discharge valve open.
Both valves closed.
Both valves open.
What contributes most to rust formation on vehicles/Ro-Ro units?
Cargo hold ventilation systems and associated ducting.
Pipes passing through cargo holds.
Vehicles loaded wet.
Hydraulic units in cargo holds.
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 slowly.
It will allow for inrush current or motor specific faults.
Fuses act too quickly.
To avoid overbunkering and oil spill, it is very important that we closely monitor the progress of the bunkering operation. What is the safest method to use to minimise the risk of overflow and spillage?
Use the predicted loading rate to calculate how much oil is being received.
Open all the bunker tank lids to manually watch them filling.
Continuously monitor remote gauge readings and confirm with regular sounding of the fuel tanks.
The remote gauge system will provide us with the necessary information.
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 with a rating “on watch” in the engine room for the UMS period.
Arrange frequent checks of the condition during the night otherwise operate in normal UMS-mode.
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?
100 nm and capacity for evacuating more than 10 persons.
500 nm and capacity for evacuating more than 25 persons.
200 nm and capacity for evacuating more then 15 persons.
I don’t know.
According to SOLAS Regulation all dedicated seawater ballast tanks on oil tankers shall have an efficient corrosion prevention system such as hard protective coatings or equivalent. With regard to coatings do SOLAS set any requirement to colour?
Preferably light colour.
Preferably light red colour.
Preferably dark colour.
No requirement.
The muster list shall show the duties assigned to the different members of the crew. Which of the given duties necessarily have to be included in the muster list?
Preparation and starting of emergency generator.
Preparation and launching of survival crafts.
Type of fires that can be encountered on board.
I don’t know.
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?
Engine speed control will be sluggish.
The governor will hunt resulting in erratic engine speed control.
A change in load will not affect a speed sensing governor.
I don’t know.
Which ideal heat engine cycle is the vapour-compression refrigeration system based on?
The reversed Carnot cycle.
The Otto cycle.
The Rankine cycle.
The Dual cycle.
What effect would turbulent fluid flow through a heat exchanger have on the efficiency of the heat transfer?
Turbulent fluid flow generally increases heat transfer efficiency.
It cannot be determined since it is not possible to generate turbulent fluid flow through a heat exchanger.
Turbulent fluid flow generally reduces heat transfer efficiency.
Heat transfer efficiency is not affected by the type of fluid flow through the heat exchanger.
The main engine is running steady with an average exhaust gas temperature of approximately 350 °C. What would be a typical alarm/slow down setting for the cylinder exhaust gas temperature deviation from the average?
+/- 30 °C.
+/- 10 °C.
+/- 50 °C.
+/- 80 °C.
What is polymerisation?
The process by which unsaturated chemical compounds are heated under pressure, causing the molecules to react with each other and form larger molecules.
The process by which the molecules in unsaturated chemical compounds react with each other during cooling, forming larger molecules.
The process by which saturated chemical compounds are heated under pressure, causing the molecules to react with each other and form smaller molecules.
The process by which saturated chemical compounds react as pressure is released during heating, causing the molecules to react with each other and form larger compounds.
Which statement about the use of profiling onboard a ship is true?
A random selection process must be established.
Only visitors can be profiled.
Detection equipment can be used in place of profiling.
Profilers need at least half an hour to gather the information they need.
Some new maintenance routines are being planned and a risk assessment is necessary so that the required procedures can be entered into the ship’s Safety Management manual. Which of the following should be the first step in this risk assessment process?
Identify the hazards that may exist which may affect personnel involved with the maintenance routines.
Identify the safety precautions that may be necessary to prevent injury or harm to personnel carrying out the routines.
Identify who may be harmed or injured in carrying out the maintenance routines.
Identify how much it will cost to implement the necessary precautions to prevent injury to personnel.
Why is it important to reduce the diesel engine load during in service water washing of the turbocharger gas side?
To prevent damage to the turbine blades.
To reduce the air pressure to the water dosage pot.
To prevent overload of the turbocharger bearings.
To avoid cold corrosion of exhaust system.
To make a “call-request” one should:
Select the telex in on-line position.
Select the ID of the NCS.
Select the telex in off-line position.
Don’t know.
A diesel engine is operating with retarded fuel timing resulting in increased exhaust gas temperatures. How would you expect this to affect the turbocharger?
Increased turbocharger revolutions.
Reduced air and gas temperature after turbocharger.
Decreased turbocharger revolutions.
The turbocharger would operate normally.
You are in charge of a night bunkering operation. The delivery rate from the supplier is high and you are filling six tanks simultaneously. You lose track of the progress of the operation and feel that you are losing control of the situation. What action should you take?
Prepare yourself and the crew for an overflow.
Open more tanks to slow down the filling rate of individual tanks.
Stop bunkering, and establish facts, before bunkering is resumed.
Request a reduction in the delivery rate to try and gain some time.
Maintenance is to be carried out on a diesel engine. How long after stopping the engine should the cooling water and lubricating oil be kept circulating in order to avoid any undue thermal stress from residual heat?
At least one hour.
10 minutes is sufficient.
At least 8 hours.
I don’t know.
Why is it necessary to have an effective ballast water management plan which includes provision for changing out ballast in open water rather than discharging ballast in coastal waters?
To allow ballast tank inspections to be carried out during ballast passage.
To keep the ballast water fresh in the ballast tanks during long voyages.
To ensure that ballast tanks are always pressed up during a ballast voyage to avoid free surface effects.
To avoid the introduction of non-indigenous species of marine life from one area to another.
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?
Air in the fuel oil system.
The turning gear interlock has operated.
The turbocharger has not run up to normal full speed.
The lubricating oil temperature is low.
A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?
Start the system up in manual mode and gradually increase the controller output signal until the temperature reaches the required value before changing over to automatic control.
Start with the control valve in manual and use the hand jack to gradually increase the temperature by throttling the steam flow before changing to pneumatic control.
Start the system up in automatic mode with normal set point but with the steam supply to the control valve manually throttled in.
What does the term “stoichiometric mixture” mean when used in relation to combustion of hydrocarbon fuels?
An ideal mixture of fuel and air in which all of the fuel and oxygen in the mixture are consumed during combustion.
A ideal mixture of fuel and air in which all of the fuel in the mixture is consumed during combustion.
An ideal mixture of fuel and air in which all of the fuel in the mixture is consumed during combustion with a minimum excess air.
An ideal mixture of fuel and air in which all of the oxygen in the air in the mixture is consumed during combustion.
The «Deck Management Bulk Carrier» subject provides both theoretical and practical knowledge on safely working with electrical equipment. Mastery of this material is a clear indicator of an employee’s competence in their role aboard a vessel. A bulk carrier is a specialized type of ship designed to transport large quantities of loose bulk cargo, such as coal, grain, ore, or cement. These ships are distinguished by their large size, with a high freeboard (the vertical distance from the waterline to the deck) and a broad, flat deck. Bulk carriers come in various types, categorized by size, cargo capacity, and hull design, including Handysize, Supramax, Panamax, Capesize, and Valemax. They play a critical role in the global shipping industry, transporting raw materials and commodities between ports.
- Version: 6.0.0.
- Test type: STCW.
- Department: Deck.
- Level: Management.
- Vessel type: Bulk Carrier.
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