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Главная Онлайн-тесты CES Medium Speed 3rd-Eng/4rd-Eng Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)
Онлайн-тестирование: Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)
Онлайн-тест
Описание
Отзывы
Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 120
Всего вопросов по данной теме: 120
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While getting tools ready and preparing for overhaul work on the main engine the engine room rating notices that the electrical extension is damaged. A small section of the cables outer insulation is split although the inner insulation appears ok. What action should the rating take?
Cut off the end of the cable including the damaged section and refit the plug to the end of the remaining cable before using the extension.
Label the damaged extension as unfit for use and return it to the store for testing and get a replacement extension.
Carry on using the extension after wrapping insulation tape over the damaged section as it is only minor damage.
Just use the extension as it is since the damage is only to the outer insulation and the inner insulation appears ok.
On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first?
Activate the nearest fire alarm button and advise bridge of the location of 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.
As most people are sleeping, call a friend and ask him to assist in putting out the fire.
The small amounts of cargo found in the cargo tanks before loading is referred to as OBQ, which means:
OBQ (On Board Quantity).
OPB (Observed Preliminary Volume).
TSV (Total Surveyed Volume).
ROB (Remaining On Board).
What is the signal actuated by a fire detection system?
A visual and audible alarm signal at the control panel.
An audible signal at the control panel.
A visual signal at the control panel.
An audible and visual signal consisting in 7 short signals followed by a long one.
How many rocket parachute flares are carried in each liferaft with SOLAS B pack?
6.
2.
12.
Nil.
Is it necessary to cool the samples taken from a diesel engine cooling water system before carrying out tests to determine the concentration of treatment chemicals?
No, the samples should be heated to approximately 95 °C.
Yes, the samples should be cooled to approximately 25 °C.
Yes, the samples should be cooled to approximately 50 °C.
No, the test should be carried out at system temperature.
During inspection of a high pressure fuel pump for a medium speed diesel engine it is observed that the upper leading edge and the lower helical edge of the pump plunger have suffered from erosion damage. Select the correct action to take to remedy this from the options given.
Renew only the plunger if the barrel appears undamaged.
Renew the plunger and barrel insert as a pair.
Smooth away the damaged area with a grinder and polishing stone and refit it.
Replace the complete pump with a new or reconditioned spare.
You are carrying out a search in a smoke filled compartment wearing a breathing apparatus. At what stage should you start to make your way out of the compartment?
Wait until the breathing apparatus warning whistle sounds.
15 minutes after starting to use the set as this leaves you with 5 minutes air left.
Wait for the appropriate signal on your safety line as the personnel outside will be keeping a track of the time you have spent inside.
Regularly check your pressure gauge and note how much air you used to reach your work area. Start to return when you have this amount left plus a reasonable reserve.
When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure so as to:
Comply with the requirement of MARPOL Annex VI.
Avoid locking the cargo pump impeller.
Minimise blowback.
Avoid over-capacity in the IG generator.
In carbon dioxide fire-fighting systems for use in machinery spaces the fixed piping system shall be such that:
85 % of the gas can be discharged into the space within 2 minutes.
100 % of the gas can be discharged into the space within 2 minutes.
100 % of the gas can be discharged into the space within 3 minutes.
70 % of the gas can be discharged into the space within 1 minute.
Which one of the listed requirements regarding the stowage of a survival craft corresponds to present SOLAS regulations? Each survival craft shall be stowed:
In a secure and sheltered position and protected from damage by fire or explosion.
Wherever space is available.
In a state of readiness so that two crew-members can prepare for embarkation and launching in less than 15 minutes.
On the starboard side of the ship.
In a refrigeration system what is the most likely cause of the compressor suction pressure being too law and causing the compressor to short cycle?
System overcharged with refrigerant.
Insufficient cooling water flow through the condenser.
Expansion valve stuck open.
System undercharged with refrigerant.
What is the correct understanding of the term “Lapse Rate” when used in Meteorology?
The rate of increase of the wind associated with a Tropical Revolving Storm.
The delay in temperature reduction associated with the wet bulb thermometer of a hygrometer.
The change in the temperature associated with the passing of the warm front of a frontal depression.
The change of the temperature in the atmosphere with height above sea level.
An engine room rating is assisting the duty engineer during a period of UMS operation. After completing the tasks they have been busy with the engineer and rating leave the engine room which is returned to UMS mode. The rating realises that an oil tank filling valve has been left open. What action should be taken?
Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.
Inform another crewmember that he is going back into the engine room to close the valve.
Just leave the valve open as it is unsafe to enter the engine room alone. The high alarm will sound to notify the engineer when the tank is full.
Re-enter the engine room straight away and shut the valve.
An engine room rating is assisting in the maintenance of some of the valves on the low pressure steam range. Which packing material, from the options given, would be the best choice for repacking the gland of a low pressure steam valve?
Graphite fibre packing.
PTFE rope packing.
Lead covered cotton packing.
Greasy cotton packing.
The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?
Sound the General Alarm and stop engines.
Contact the other ship and send the bridge lookout down to start taking soundings.
Call the Master and check the position for any immediate dangers.
Stop engines and check over the side for any signs of pollution.
An important quantity which is useful in circuit analysis is known as conductance G (Siemens). Which of the formulas A to D expresses the conductance for this circuit?
G = 1/R.
G = 2R.
G = I/R.
G = R*V.
The purpose of the demister unit within the Inert Gas System is:
To remove sulphur oxides.
To cool the inert gas.
To prevent overheating.
To remove water from the IGS stream.
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
The HV cable carries a smaller current and therefore requires less copper.
The HV cable uses higher quality copper conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable uses Aluminium conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable has a thinner wall of special insulation material.
A small electric motor needs to be taken to the bottom plates for fitting to a domestic water pump. It is only just too heavy to be manually carried so is to be lowered using the engine room crane. Which of the options given would be a suitable strop to use for the operation?
Any certified strop which has a safe working load greater than the weight of the motor.
A wire strop which is rated for twice the required load but is out of certification.
Any piece of rope will do as the motor is only just too heavy to carry.
Any strop which looks big enough to carry the load.
An engine room rating is assisting in the maintenance of some of the valves on the low pressure steam range. Which packing material, from the options given, would be the best choice for repacking the gland of a low pressure steam valve?
Graphite fibre packing.
PTFE rope packing.
Lead covered cotton packing.
Greasy cotton packing.
What is the disadvantage of using chemicals on an oil-spill on the water?
The water gets a white colour, which makes it easy to detect the oil-spill.
It is difficult to apply chemicals if there is any wind.
The chemicals make it difficult to remove the oil from the water.
It is difficult to apply the chemicals if the oil drifts away from the ship’s side.
What do you understand by the order: “Move the pilot ladder to the other side”?
To shift the pilot ladder to the opposite side of the ship.
To move the pilot ladder further along nearer to the bow.
To change the position of the pilot ladder from the main deck to the fore deck.
To rig another pilot ladder.
During maintenance work in the engine room or on deck it is often necessary to work aloft (work at a height above the plates or the deck). When working aloft onboard the ship what is the most important safety precaution that should be taken?
Wear a safety harness securely attached to ship’s structure.
Wear a safety helmet and goggles.
Lash the bottom of the ladder to a fixed point.
Keep all the tools required for the work in a bucket.
The normal carbon content of Crude Oil is in the range of:
83-87 %.
88-94 %.
62-73 %.
24-82 %.
What is the emergency channel on VHF?
Channel 09.
Channel 16.
Channel 69.
Channel 21.
Which of the following areas may be possible restricted areas? Review all answers.
The Bridge.
The Cargo control room.
All alternatives.
The Engine control room.
What does the word “pyrotechnics” mean?
Pyrotechnics are the items which are capable of self-contained chemical reactions for the production heat, light, smoke and/or sound.
Pyrotechnics are items that are used to produce technical solutions to the complex problems.
Pyrotechnics are used to ensure that the correct technical proportions are used to start the system functioning.
Pyrotechnics is a group word to cover all the required activities in the event of a man overboard.
The threads on the drain plug for the bronze end cover of a sea water cooled heat exchanger have been badly damaged during maintenance. There is no spare brass plug available. What is the best solution for repairing the heat exchanger?
Make a new brass plug on the lathe to fit the drain hole.
Use a steel plug with the same thread as the original to replace it.
Wrap the threats in thread tape and coat it with jointing compound before refitting it.
Hammer in a wooden tapered plug as a temporary repair.
What is the correct name of the part highlighted in the sketch?
Cylinder lubricator.
Cylinder relief valve.
Fuel injector.
Cylinder air start valve.
Which of the following disposal would be permitted?
Food waste from a vessel outside a special area and 12 miles from nearest land.
Paper products from a vessel inside a special area and 15 miles from the nearest land.
Food waste from a vessel outside a special area and 10 miles from the nearest land.
Food waste from a vessel inside a special area and 10 miles from nearest land.
What are the lists called that give the position and task during a lifeboat drill for all persons on board the ship?
The Drill List.
The Duty List.
The Muster List.
The Crew List.
What is generally considered as the minimum safe time period before opening a crankcase door after the oil mist detector alarm has activated and the engine has been stopped?
After at least 20 minutes.
After at least 10 minutes.
After at least 5 minutes.
After at least 1 hour.
The following information must be given on the SART:
The MMSI number sent.
The date of replacement of the hydrostatic release unit.
The name of the operator.
Date of replacement of the batteries.
What are the lists called that give the position and task during a lifeboat drill for all persons on board the ship?
The Crew List.
The Duty List.
The Drill List.
The Muster List.
Personal protection equipment appropriate to the task should be worn during work in the engine room. Which of the tasks given in the options requires that safety goggles should always be worn?
When you are working with power tools or chemicals.
When you are filling in the engine room log book.
When you are welding.
When you are tidying up in the engine room workshop.
What type of fire integrity must be provided for an engine control room?
C.
A 0.
A 60.
B 15.
What measures should be taken when handling mail?
Open any mail that looks suspicious.
X-ray or scan parcels before opening them.
Wear rubber gloves and protective clothing when opening suspicious looking mail.
Tear open letters with your hands.
What special equipment can often provide assistance in locating a survival craft or man overboard and in the water?
A RACON.
AIS.
A SART.
A sectored search pattern.
An engine room rating notices that the guard on a running pump is hanging loose due to a missing bolt on the support bracket and it is catching the shaft coupling. What is the best action to take as a repair method?
Try and fit a new bolt while the pump is running to permanently fix the guard in place.
Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.
Fasten the guard back in place with a piece of rope with the pump running as a temporary repair.
Place a sheet of metal in front of the guard to deflect any parts that may fly off as a temporary repair.
What kind of permits have to be obtained before starting hot work in tanks?
Hot work permit + Permit for entry.
Hot work permit.
Permit for entry.
Cold work permit.
What types of fire extinguishers shall be used in the engine room?
Fire extinguishers of the handy-size types only.
Fire extinguishers filled with fresh water only.
Fire extinguishers equipped for powder or CO2 only.
Any fire extinguisher with a weight of less than 100 lbs.
An electric motor is to be aligned to a pump by insuring shims under the motor feet. Which of the tools given in the options would be used to check that the alignment is correct by measurement of the gap between the coupling faces?
A set of feeler gauges.
A go/no go gauge.
An inside micrometer.
An inside vernier calliper.
What should be the first action to be taken in the event of the water level disappearing out of the boiler water level gauge glass?
Close the main steam stop valve.
Secure all of the burners.
Call the chief engineer.
Close the feed water stop valve.
The examples of Aromatic Hydrocarbons will include:
Benzene, Toluene and Xylene.
Hydrogen Sulphide and Carbon Monoxide.
Carbon Dioxide and Hydrogen Peroxide.
Propane, Butane and Pentane.
The use of combustible material is restricted in the accommodation spaces in order to:
Reduce cost of construction.
Prevent occurrence of fire and explosion.
Contain and suppress fire and explosion in the compartment of origin.
Make the ship light.
Is there any special area where it is forbidden to pump out any sludge or oil residues?
There are 8 special area where it is forbidden to pump out any sludge or oil residues.
There are 9 special area where it is forbidden to pump out any sludge or oil residues.
There are 4 special area the Baltic, Mediterranean, Red sea and Black sea where it is forbidden to pump out any sludge or oil residues.
There isn’t any special area where it is forbidden to pump out any sludge or oil residues.
The bones in the human body are connected to each other by:
Muscles.
Fibrous tissues.
Tendons.
Different type of joints.
Which of these are indicators that an individual may be a drug smuggler?
The individual makes small local purchases.
The individual is disinterested in the ship’s cargo.
The individual wears bulky or out of season clothing.
The individual spends his or her free time hanging out with others.
What is the most suitable type of packing for a shaft gland of a pump used for seawater duties?
Lead covered hemp packing.
PTFE rope packing.
Mica impregnated cotton packing.
Greasy cotton packing.
The responsibility for safety and security rests with everybody on board the vessel. General house-keeping rules should be followed. Which of the listed rules is the most important?
Always use gloves when using grinding machines.
Keep tools within easy reach during work.
Keep your working area clean and tidy.
Do not carry lighters or matches when working outdoors.
Which cleaning agents are suitable for use in machinery space when considering the effect on the function of the oily water separator?
Only non-emulsifying cleaning agents with self-splitting emulsifiers are suitable.
None should be used as all cleaning agents affect the function of an OWS.
Any kind of cleaning agent is suitable.
An emulsification type cleaning agent is suitable.
What will a cadet find in the maintenance manual?
A cadet will find a lubricating chart in the maintenance manual.
A cadet will find grease in the maintenance manual.
A cadet will find machinery spare parts in the maintenance manual.
A cadet will find grease nipples in the maintenance manual.
Give the meaning of the following symbol:
CO2 battery.
Remote controlled fire pumps.
Foam release station.
International shore connection.
The purpose of having corrugations in the bulkheads of cargo tanks of an oil tanker is to:
Provide strength, but with clean and clear surfaces within the tank.
To assist in the drainage of the oil by funneling the oil to the suction well.
Reduce the effects of Free Surface within the vessel.
Provide additional resistance to shear forces and bending moments.
With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:
Net Pressure Suction Head.
Necessary Pumping Suction Hazard.
Nominal Pressure Suction Head.
Natural Pumping Standard Height.
What term is used to describe a fresh water cooling system which contains a seawater cooled common freshwater cooler and which meets the cooling requirements for all the engine room machinery?
A high temperature freshwater system.
A common cooling system.
A low temperature freshwater system.
A central cooling system.
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Shut down of inert gas blower.
Close the gas pressure control valve.
Close the deck isolating valve.
Open ventilation valve to atmosphere.
Welding and burning are two operations which give the highest risk of a fire on board ship. Which of the following safety precautions may be regarded as the most important in order to minimise this particular risk?
The area where the welding is to take place and adjacent spaces to be cleaned and all unnecessary materials and objects to be removed.
Only holders of a welding certificate should be allowed to carry out welding or burning on board ships.
Only use electrodes from a well known manufacturer.
Electric welding plants should be controlled by a responsible engineer before use.
What is the correct name of the equipment shown in the sketch?
File.
Shaping machine.
Pedestal drill.
Chisel.
What signal, if any, is specified in SOLAS as the “Abandon ship” signal?
Six short blasts followed by one long blast.
The “Abandon ship” signal is not specified, only the general emergency alarm signal is stated.
Four long blasts.
Seven short blasts followed by one long blast.
Shipboard Emergency Drills must be carried out at least (OPA-90):
Once a month.
Once every 6 months.
Once a week.
Once a year.
An engine room rating is given the task of retightening the flanges of a pipe that has been replaced in the engine room. Which of the following tightening procedures should be followed?
Gradually tighten all of the bolts working diagonally across and around the flange.
Start with the top bolt and fully tighten each in turn moving clockwise around the flange.
Start with the bottom bolt and partially tighten each bolt in turn working counter clockwise around the flange. Repeat to fully tighten.
Fully tighten each bolt in turn and work diagonally across and around the flanges.
What is the best way to avoid pollution from small oil-spills aboard a ship?
Contain any oil-spill onboard the ship.
Rig an oil boom around the ship.
Have sawdust ready for use.
Have dispersing chemicals ready for use in case of oil-spill.
When operating a propulsion installation consisting of medium speed diesel engines driving a controllable pitch propeller it is possible to operate the combination of engine speed and propeller pitch in a number of different ways. What would be the main reason for operating with constant speed and variable pitch?
To allow the engine to be operated with a load sensing governor instead of a speed sensing governor.
To allow rapid load change and thrust reversal when manoeuvring.
To obtain maximum propeller efficiency over the load range of the engine.
To allow constant speed operation of a shaft generator while the engine load changes with pitch variation.
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Close the deck isolating valve.
Open ventilation valve to atmosphere.
Close the gas pressure control valve.
Shut down of inert gas blower.
A detector that is activated by a rise of temperature is:
A thermic detector.
A detector of radiation.
A smoke detector.
An optic detector.
For how long should the self contained air support system on a totally enclosed lifeboat having its engine running be capable of providing safe and breathable air?
30 minutes.
20 minutes.
5 minutes.
10 minutes.
What would be the most probable cause of the exhaust gas temperature from one cylinder of a diesel engine being lower than normal?
The opening pressure for the injection valve for the cylinder is set too high.
There is air in the fuel oil system.
The camshaft chain is too slack.
The intake filter for turbo charger is partly fouled.
What would be the effects of a ship passing into shallow waters?
The vessel has a tendency to swing to port with a single fixed-pitch right-hand turning propeller.
The speed is not affected, but more rudder is required to steer the ship.
There is no noticeable difference in performance of the ship.
The ship is less responsive to both rudder and propeller.
What kind of extinguishing-remedy would you choose to put out an electrical fire?
Combination of powder and water.
Water.
Foam.
Dry extinguishing remedy.
While assisting the watchkeeper with routine cleaning of the fuel oil separator the watch rating is requested to clean the plate stack. Which of the options given is the preferred method for such a task?
Soak the dirty plates in a solvent for an hour and then stand them on the engine room deck to drain off.
Scrape the plates as clean as possible with a packing knife and then wash them with a high pressure water hose.
With the plate stack in position fill the purifier bowl with clean diesel oil and quickly switch it on and off to wash the plates.
Soak the plates in a suitable solvent until all of the dirt has loosened off and wipe clean with rags.
An airway should be used when:
The patient has stopped breathing.
The patient is unconscious.
The patient is breathing on his own but is doing so with great difficulty.
Patient has injury in the mouth.
Welding and burning are two operations which give the highest risk of a fire on board ship. Which of the following safety precautions may be regarded as the most important in order to minimise this particular risk?
The area where the welding is to take place and adjacent spaces to be cleaned and all unnecessary materials and objects to be removed.
Only holders of a welding certificate should be allowed to carry out welding or burning on board ships.
Only use electrodes from a well known manufacturer.
Electric welding plants should be controlled by a responsible engineer before use.
During cargo or bunker operations, oil response equipment is to be:
In its store room.
Used elsewhere in the ship.
Ready for immediate use.
In the cargo pump room.
Water is the extinguishing agent which is the most widely employed and its action as an extinguishing agent is due to a combination of the following phenomena:
Smothering and inhibition.
Cooling, smothering and dispersion.
Smothering and dispersion.
Cooling, inhibition and dispersion.
What is the main difference between a stuffing box gland and a mechanical seal on a centrifugal pump?
If packing fails the pump can be kept running by tightening the glands, but if a mechanical seal fails it must be renewed to stop the leakage.
The sealing surface of a mechanical seal is usually parallel to the shaft, but sealing surface of a packed gland is perpendicular to the shaft.
Packed stuffing box glands are subject to wear but mechanical seals are not.
Packed stuffing box glands must be cooled by liquid, but mechanical seals do not require any cooling.
Where does the excess steam discharge to when the boiler safety valves operate due to the boiler pressure being too high?
The auxiliary condenser.
The engine room bilges.
The atmosphere via the atmospheric line.
The main condenser.
What term is used to describe a fresh water cooling system which contains a seawater cooled common freshwater cooler and which meets the cooling requirements for all the engine room machinery?
A high temperature freshwater system.
A common cooling system.
A central cooling system.
A low temperature freshwater system.
What is meant by the term “segregation”?
The process of electronically transferring the data on cargoes loaded on a vessel between the load port and the discharge port, such that import documentation is prepared in advance of the vessel’s arrival.
The stowage of cargoes when calculated by a computerized load program.
The planned, separated stowage of cargoes that may react dangerously with each other in the event of leakage or other damage.
The planned adjacent stowage of packaged goods, thereby confining a listed hazard within the same area of the ship.
The current test includes Seagull CES questions on the topic of «Engine, Operational, Medium Speed». These questions are designed to verify the competence of specialists who are responsible for preventing accidents related to transport safety and can also be used for self-assessment.
The «Medium Speed» subject provides both theoretical and practical knowledge essential for advanced training on any type of vessel. Mastery of this information is a clear indicator of an employee’s competence in their role on board. A professional responsible for maintaining a medium-speed engine on a vessel has a range of crucial duties to ensure the ship’s safety and efficiency. This includes conducting regular technical maintenance, such as inspections, cleaning, replacing components, and lubricating bearings. Additionally, they monitor and adjust operational parameters like temperature, pressure, and fuel consumption to meet established standards, thereby ensuring optimal engine performance.
- Test type: STCW.
- Version: 5.2.7, 6.0.
- Department: Engine.
- Level: Operational.
- Propulsion: Medium Speed.
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