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家 在线测试 CES Bulk Carrier MASTER / Ch-Officer Test online for seamans about Deck department, Management level, Bulk Carrier (CES v6.0)
在线测试： Test online for seamans about Deck department, Management level, Bulk Carrier (CES v6.0)
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该测试由 80 个随机问题组成。
有关此主题的总问题： 110
有关此主题的总问题： 110
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Which class of emission is used for FEC NBDP transmissions?
G3E.
G2B.
J3E.
F1B.
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.
During mooring operations which is the safe place to be in?
Outside the colored zone.
Behind the “point of restraint” but inside the zone.
Between the “point of break” and the “point of restraint”.
Where ever you feel safe.
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.
Many large, slow speed diesel engines have direct oil cooling of the piston crowns provided. An automatic slow down and alarm are sometimes fitted to protect against failure of this system. Which parameter is usually used to initiate this slow down?
Low pressure in the cooling oil return line.
Low flow or no flow in the cooling oil return line.
High temperature of the piston crown.
I don’t know.
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.
According to the industry guidelines in the ISGOTT Guide and assuming terminal regulations do not require otherwise, what action should be taken to drain accumulated water from the deck during cargo handling operations in rainy conditions?
The accumulated water is to be drained periodically and the scupper plugs to be immediately closed once the water has been run off. Water containing oily residues is to be transferred to a slop tank or other suitable receptacle.
The scupper plugs are to be kept closed and sealed; any volume of water that is not contained should be allowed to flood over the fishplate.
During periods of heavy rain, it is considered prudent and safe to allow water to drain continuously; therefore scupper plugs should be removed in such conditions.
The accumulated water is to be transferred to a spare tank.
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.
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.
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.
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.
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm, connected in series. Calculate the equivalent resistance R(S) of the two resistances.
R(S) = 18 ohm.
R(S) = 4 ohm.
R(S) = 2 ohm.
R(S) = 1,5 ohm.
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 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.
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 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.
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.
How often should the lifeboat wire falls be turned and renewed?
Turned at intervals of not more than 30 months and renewed every 5 years.
Renewed every 3 years.
Turned every 2 years and renewed every 4 years.
Turned every 30 months and needs only to be renewed if the wire is in poor condition.
When lashing general cargoes why are short lashings preferred to long ones?
Because they are more easily tightened and held in tension.
Because long lashings are more prone to vibration.
Because some of the ship’s lashing points may not be designed to hold long lashings.
Because the safe working load of lashing materials decrease with length.
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.
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 %.
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.
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.
What do you understand by the term Maximum Continuous Rating, MCR, of a diesel engine?
The maximum speed that the engine can operate at continuously.
The maximum load that the engine can operate at continuously.
The maximum cylinder pressure that the engine can operate at continuously.
The maximum charge air pressure that the engine can operate at continuously.
How can the pressure be regulated during start up of a positive displacement pump such as a gear pump?
Positive displacement pumps operate at constant pressure and cannot be regulated.
Adjustment of the pressure relief valve to recirculate part of the flow.
By throttling the suction valve.
By throttling the discharge valve.
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.
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.
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.
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.
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.
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.
In the case when the temperature of the ambient air is equal to 10 °C and the wind is blowing at a speed of 10 m/sec the shipwrecked person must consider that the effect of air on his body is equivalent to that of an air whose temperature would be approximately:
-10 °C.
0 °C.
+10 °C.
+20 °C.
The critical part of any bunkering operation may be considered to be when topping off the tanks at which stage the risk of overflow and spillage of fuel oil is greatest. What is the correct safe procedure to adopt to minimise this risk?
Top off all of the tanks together to reduce the inflow rate into each tank.
Watch for oil coming up the sounding pipe and shut the tank valve just before it overflows.
Reduce the bunker delivery flow rate and top off the tanks one at a time.
Shut off each tank as it overflows into the fuel oil overflow tank.
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12 H, connected in parallel. Calculate the equivalent L(S) of the two inductors:
L(S) = 4 H.
L(S) = 0,667 H.
L(S) = 1,5 H.
L(S) = 18 H.
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.
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.
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.
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.
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.
When starting up an aerobic type sewage unit for the first time, of after manual cleaning, how should the bacterial process be initiated?
By adding an activating agent to the inflowing sewage.
By bypassing the grey water inflow and operating only with black water.
By shutting off the air flow.
By filling the unit with sewage and bubbling air through it for 48 hours prior to starting the discharge pump.
Which of the following terms is used to describe a thermodynamic process in which no heat transfer into or out of the system occurs?
Adiabatic.
Isochoric.
Isothermal.
Polytropic.
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.
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.
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.
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.
On a container vessel, where should a mid-bay guide be positioned?
On the tank top mid-way in 40′ guides to prevent transverse movement of 20′ containers.
On the tank top at the ends of 40′ container bays.
At the base of cell guides.
Between 20′ container bays on deck.
What is the correct name of the tool shown in the sketch?
Grinding machine.
Flat file.
Chisel.
Pliers.
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.
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.
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.
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.
What would the results of a TAN test, carried out on lubricating oil samples from a diesel engine, indicate?
A measure of the organic and inorganic acids in the lubricating oil.
A measure of the remaining alkalinity in the lubricating oil.
A measure of the inorganic acids in the lubricating oil.
A measure of the organic acids in the lubricating oil.
In the event of a diesel engine crankcase explosion which of the safety devices fitted to the engine is designed to minimise the risk of a secondary explosion?
Main bearing temperature monitoring equipment.
Crankcase extraction fan.
Crankcase oil mist detector.
Crankcase relief valves/doors.
When starting three phase induction motors which of the following starting methods will immediately apply rated voltage to the machine?
Direct on Line.
Star Delta.
Soft starter.
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.
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.
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.
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.
How does the maximum oil film pressure in a white metal journal bearing operating under full fluid film conditions compare with the pressure of the lubricating oil supply system?
The pressure is less than the pressure in the lubricating system and varies with the journal load.
The pressure is greater than the pressure in the lubricating system and varies with the journal load.
The pressure is the same in the lubricating system and is constant regardless of the journal load.
The pressure is greater than the pressure in the lubrication and is constant regardless of the journal load.
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.
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.
In which way may intake of poisonous material occur?
Skin penetration and skin absorption.
Swallowing.
By inhalation.
All mentioned.
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.
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.
Give the meaning of the following symbol:
Start water-spray.
Secure lifeboat hatches.
Rescue boat with waterproof canopy.
Lower lifeboat to water.
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.
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.
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.
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.
The water cooling space on a turbocharger is damaged and there is no spare casing. The cooling water must be shut off. Which option would you take to keep the risk of further damage to a minimum?
Dismantle the rotor and assemble the sealing plates.
Run the engine at a lower speed.
Make no modifications, but tell the duty engineer to pay special attention for abnormalities.
Cool the turbocharger by means of air.
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.
Telephones are being used to communicate between personnel onboard and ashore during a bunkering operation. What instruction would you give to ship personnel regarding action to take in the event of failure of the telephone communication during the operation?
Use a crewmember as a messenger between personnel involved in the operation.
Call the electrician, and get him to repair the telephone while the bunkering operation continues.
Slow down the bunkering rate until alternative reliable communications are established.
Stop the bunkering until alternative reliable communications are established.
When planning bunkering operations it is preferable to arrange for the new fuel to be bunkered into empty or nearly empty tanks whenever possible. What is the main reason for this?
So that the sulphur content of each fuel is known.
To minimise the risk of microbial contamination of the fuel.
To make it easier to calculate the quantity of fuel taken onboard.
To minimise the risk of incompatibility between different fuels.
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.
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.
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.
Falls used in launching shall be turned end for end at an interval of not more than X months and to be renewed not later than every Y years, where the intervals are:
6 months/2 years.
12 months/4 years.
20 months/3 years.
30 months/5 years.
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.
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.
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.
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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