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Home Online tests CES Medium Speed 3rd-Eng/4rd-Eng Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)
Online testing: Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)
Online test
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The test consists of 80 random questions.
Total questions on this topic: 120
Total questions on this topic: 120
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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.
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.
Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?
Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
Fit a spare temperature gauge and see if the reading are the same.
Place the sensor in a test tank of water fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Place the sensor in a test tank of oil fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
A seawater pipe is holed due to corrosion causing frequent bilge alarms. Which of the given temporary repair methods would be the preferred option to remedy the problem until the pipe can be replaced?
Cover the hole with rubber insertion held in place with a jubilee clip.
Cover all of the affected area with fibre glass tape and resin/fibre.
Wrap duct tape around the pipe in way of the hole.
Drive a steel taper pin into the hole to seal it.
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.
How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length?
100 % of the complement if it can be readily launched on either side of the ship. If it cannot be readily launched on either side, 100 % must be provided on each side.
50 % of the complement on each side of the ship.
75 % of the complement on each side of the ship.
25 % of the complement on each side of the ship.
Shipboard Emergency Drills must be carried out at least (OPA-90):
Once a month.
Once every 6 months.
Once a week.
Once a year.
What actions should the Officer of the Watch take when the ship’s steering gear fails?
All of the suggested answers.
Request the engine room to check the steering gear.
Call the Master and advise him of the situation.
Display the NUC signal and consider stopping the engines.
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.
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.
What is the first thing that should be checked when taking over a boiler watch?
The boiler water level.
The boiler room bilge level.
The oil pressure to the burner.
The boiler exhaust gas colour.
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.
What is the “International shore connection” used for?
To connect the ship fire main to the shore lines.
To connect the cargo hoses to the shore.
To connect the bunker hoses to the shore.
To connect the ship fresh water hoses to the shore.
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.
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.
What is the correct name of the part highlighted in the sketch?
Cylinder lubricator.
Cylinder relief valve.
Fuel injector.
Cylinder air start valve.
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.
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?
An inside vernier calliper.
A go/no go gauge.
An inside micrometer.
A set of feeler gauges.
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.
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.
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.
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.
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.
Which of the following answers would most appropriately describe shell plating damage to the vessel?
My vessel has sustained damage to shell plating below the waterline.
My vessel has sustained damage to shell plating below the waterline in way of No. 3 cargo hold, starboard side.
My vessel has sustained damage to shell plating in way of No. 3 cargo hold.
My vessel has sustained damage to shell plating above the waterline.
The engine room rating has been assisting with ballast operations during a period of engine room watch duty. Ballast operations have stopped for a couple of hours while stores are being taken. What action should the rating take during this break in operations?
Just keep the pumps running and the valves for the ballast tanks open to save time when operations are restarted. The tanks will just overflow through the air vents.
Just stop the pumps and close the pump suction and discharge valves. Leave the valves for the ballast tanks open to save time later.
Shut the valves for the ballast tanks but keep the pumps running and discharging overboard to save time later.
Stop all of the ballast pumps and close all of the ballast valves as soon as operations are stopped. Ballast lines should always be closed except when they are being used.
Hot work is to be carried out close to a smoke detector in the engine room. What precautions should be taken?
Notify Deck Officer and Engineer Officer in charge. The loop for the smoke detector should be isolated while work is done and normal precautions for hot work taken including permit to work.
Disconnect or cover up the smoke detector.
No special precautions except for having a watch man and a fire extinguisher available.
Notify Deck Officer in charge that a fire alarm may occur.
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.
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 examples of Aromatic Hydrocarbons will include:
Benzene, Toluene and Xylene.
Hydrogen Sulphide and Carbon Monoxide.
Carbon Dioxide and Hydrogen Peroxide.
Propane, Butane and Pentane.
You have abandoned ship in a liferaft. In most cases, which of the following actions should you generally take?
Organise a lookout system. Join up with other survival craft if possible. Stream the sea anchor.
Organise a lookout system.
Join up with any other survival craft and stream the sea anchor.
Start paddling in the direction of the nearest land.
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.
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.
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.
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.
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.
A detector that is activated by a rise of temperature is:
A thermic detector.
A detector of radiation.
A smoke detector.
An optic detector.
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.
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.
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 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 is the main purpose for taking diesel engine crankshaft deflections?
To allow calculation of the load on each of the bearings.
To check for weardown of the bottom end bearings.
To check that the shafting is in a straight line.
To check for weardown of the main bearings.
Why is it important that the combustion chamber of a boiler is properly ventilated prior to ignition?
To avoid an explosion in case any oil vapours are present from oil leakage into the furnace.
To ensure that there is sufficient air for proper combustion.
To remove any deposits from the furnace wall.
To cool the surfaces of the boiler furnace in case they give premature ignition of the burner.
What is the first action that should be taken by the rating on boiler watch in the event of a flame failure on the boiler?
Call the engineer on watch.
Stop the feed water pump.
Notify the bridge.
Call the chief engineer.
Where would you find out which fire sections are enclosed by “A” or “B” class divisions on a ship?
On the ship’s fire control plans.
On the general arrangement plan.
All the mentioned alternatives.
On the capacity plan.
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.
As per international regulations, the minimum inert gas pressure required to be maintained in slop tanks if slops are retained on board is:
1 000 mm/water gauge.
100 mm/water gauge.
750 mm/water gauge.
10 mm/water gauge.
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.
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.
What is the capacity of the required portable fluid extinguishers?
Not more than 20 litres and not less than 12 litres.
Not more than 20 litres.
Not more than 13,5 litres and not less than 9 litres.
Not more than 10 litres.
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.
Give the meaning of the following symbol:
CO2 battery.
Remote controlled fire pumps.
Foam release station.
International shore connection.
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.
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 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.
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.
What would you do if you are told to operate a piece of mechanical equipment which you are not familiar with?
Seek advice from your superior before attempting to operate it.
Ensure that all safety guards and devices are disconnected.
Try and guess how the equipment should be operated.
Ignore the request to operate the equipment.
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 minimum number of channels required for the portable two-way VHF’s for survival craft?
Channels 6, 13 & 16.
Channels 16 & 12.
Channel 16 only.
Channels 6, 12 & 16.
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 would be the most probable cause of high temperature readings for the bearings in a diesel engine?
Lubricating oil pressure too low.
Charge air pressure too low.
Jacket cooling water temperature too high.
Water in the fuel oil.
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.
Why should boiler sootblowers normally only be operated in the correct sequence?
To ensure soot is cleared progressively from the bottom tubes to the top and toward the boiler uptakes.
To minimise loss of steam pressure.
So that the operator does not forget which sootblowers have been used.
To avoid excess stress in the boiler.
What is flashpoint of an oil or liquefied gas?
The flashpoint is the mixture of oxygen and hydro carbons needed to have an oil or liquefied gas to burn.
The flashpoint for an oil or liquefied gas is the temperature at which it is possible to ignite the vapour above the liquid.
The flashpoint is the temperature the oil or liquefied gas need for self ignition.
The flashpoint is the temperature needed to have a oil or liquefied gas pumpable.
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.
An alarm signal consisting of seven short blast followed by one prolonged blast is sounded by the ship’s whistle and alarm bells. What are you to do?
Go to your lifeboat station.
Go to your fire station.
Go to (or remain in) your cabin and await further orders.
Report on the bridge (deck crew) or engine room (engine crew) for further orders.
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.
Which of the options given is the main reason for using a ring spanner to tighten the brass nuts on the cover studs of a pump casing?
It can be adjusted to the exact size of the nut.
It will allow the nuts to be tightened correctly.
The nuts can be tightened more with this type of spanner.
It will minimise the risk of slipping off the nut or damaging the nuts.
What kind of measure is the division of the vessel in upright areas by using thermic and structural separations?
It is both a prevention and protection measure.
It is a protection measure.
It is a prevention measure.
It is neither a prevention nor a protection measure.
During an oil cargo discharging operation, the IG supply to the tanks fails. As an OOW you would:
Continue discharging with the cargo pumps running at minimum speed, and inform the engine room.
Slow down and relieve the vacuum by opening the tanks lids and inform the Chief Officer.
Activate the inert fans and blow fresh air into the cargo tanks, and inform the terminal authority.
Immediately stop the discharging and inform the Chief Officer.
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.
What is the emergency channel on VHF?
Channel 09.
Channel 16.
Channel 69.
Channel 21.
What is the emergency frequency of MF (Medium Frequency) radio?
2 617 Hz.
2 182 Hz.
1 616 Hz.
1 718 Hz.
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 type of fire integrity must be provided for an engine control room?
C.
A 0.
A 60.
B 15.
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.
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.
With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:
Necessary Pumping Suction Hazard.
Natural Pumping Standard Height.
Nominal Pressure Suction Head.
Net Pressure Suction Head.
After checked for open airway, given the first two inflations and checked the pulse to make sure that the heart is beating, what is the rate of inflations given until natural breathing is restored?
12-16 times per minute.
10-12 times per minute.
25-27 times per minute.
Doesn’t matter how many times.
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.
The insulation resistance (IR) to earth of a new galley hot-plate is measured to be 30 Mohm. When three identical hot-plates on the same supply are tested together their combined IR will be:
30 Mohm.
3 Mohm.
90 Mohm.
10 Mohm.
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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