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Online testing: Test online CES 5.1 for Engine department, Support level
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The test consists of random questions on a selected topic.
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*What is the minimum capacity of a ventilation system protecting cargo spaces, other than special category spaces, intended for carriage of motor vehicles with fuel in their thanks for their own propulsion in a ship carrying no more than 36 passengers or in a cargo ship?
2 air changes per hour
20 air changes per hour
12 air changes per hour
6 air changes per hour
While the vessel is in a Red Sea port during August loading/discharging a hydrocarbon cargo, should the air suction for the accommodation be:
Placed on full recirculation.
Recirk. full open, fresh air intake closed.
A mixture of both.
Closed down all together.
The display of a radiotelephone-installation shows the following selections: Transmitting mode: H3E Transmitting frequency: 2187,5 kHz The transmitting mode indicator is “flashing”. This can mean that:
You are ready to press the send buuton
The radiotelephone-alarm signal must be transmitted now
The transmitting mode is not compatible with the chosen frequency
The “H3E”mode is to be selected before transmitting on the 2187,5 kHz band
What is false regarding the function :” Transmission and reception of signals for locating ”
On area A2 this function is based on the use of SART transponders
On all areas this function is based on the use of S band radars
On area A3 and A4 this function is based on the use of SARSAT COSPAS Epirb
On area A1 this function is based on the use of SART transponders
What is the correct statement conserning the literweight of flammable products ?
The literweight will be the same regardless of temperature.
Higher temperature leads to higher literweight.
Higher temperature leads to lower literweight.
Lower temperature leads to lower literweight.
A person slowly feel more sleepy and thirsty.The skin and slimhinner become very dry and there is a sweet taste of the breath. The glukose reaction shows positive. What kind of medicine will the person need as soon as possible?
Insuline.
Sugar lump, sugar drink or something sweet.
Nothing at all.
A glass of cold milk.
Your ship is going full ahead as you start to slow down. Where is the position of the "pivot point" now? No wind, current.
The "pivot point" will move to the stern
Same position as when the ship is on full ahead
It will move aft as the ship slows down
It will move to the side of the center line
What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put 'Full Astern'?
8 nautical miles
4 nautical miles
15 ship lengths
Varies, but can be determined from trial data
What is the correct understanding of the term "a ship with good Directional Stability"?
A ship which when the rudder is left amidships, it will continue on approximately a straight course
A ship where the amount of positive transverse stability (GM) will vary with the direction of the ship's head.
A ship which will maintain its course unless large rudder angles are applied.
A ship which when a rudder angle is applied and the ship starts to swing, will continue to swing even after the rudder is returned to amidships
Do you think there is any reduction in the rudder lift force if the propeller is stopped?
No, we will maintain about 90% of the lift force.
Yes, we will loose about 10% of the lift force.
No, the lift force is not effected by the propeller.
Yes, the lift force will be dramatically reduced.
What is the correct understanding of the term "bank effect"? If a ship was approaching the bank at an angle, what would be the effect on the ship?
The vessel's stern is pushed away from the bank
The vessel’s bow is attracted by the bank.
The whole vessel would continue straight towards the bank and would require a large helm order to avoid going aground.
The vessel's bow is pushed away from the bank
What is the purpose of the LD (low duty) compressors on an LNG carrier?
To deliver inert gas and to aid cooling down of the cargo tanks.
To transfer cargo vapour to the shore installation during loading operations.
To handle the LNG boil-off vapour for fuelling the boiler.
To discharging the LNG cargo at a slow rate.
What is the correct definition of: - a mooring line?
A line for a block.
A line for the ancher.
A loop in a rope.
A thick rope to tie up the ship.
Which shipboard publication sets out calculations for cargo lashings?
The Cargo Securing Manual
Carriage of Safe Cargoes
SOLAS 74/78
The Cargo Stowage and Security (CSS) Code
What will alarm cargo receivers to the possibility of cargo damage on a Bulk Carrier?
Commencing discharge without presentation of bills) of lading
Disallowing cargo interests on board
Commencing discharge in the absence of a cargo surveyor
The presence of hatch cover sealing tapes
Every passenger ship is required to carry:
A rescue boat capable of being launched by the assigned crew in 5 minutes
A fast rescue boat capable of being launched when ship is still making headway
A fast rescue boat capable of being lowered when the ship is at anchor
There is no requirement of any rescue boat
Why should wet cloths not be used for carrying hot cooking pans?
Because Health and Safety regulations prohibit the use of a wet cloth within 2.5 metres of a galley range.
Because they conduct heat quickly and may cause scalding.
Because a cloud of steam will be generated and the person carrying the pans may find it difficult to see where he is going.
Because the mositure will transfer to the pan and cool the contents.
Double-bottom tanks of a General Cargo ship are to be ballasted with sea water; which of the following are the most important checks to be made ?
All air vent pipes open and clear, pipeline valves open to correct tanks and other tank valves checked closed
All air vent pipes open and clear, pipeline valves closed to correct tanks and other tank valves checked open
All air vent pipes closed ,pipeline valves open to correct tanks and other tank valves checked closed
All air vent pipes open and clear, pipeline valves open to all tanks
A transformer with 10:1 turns ratio and rated 50 kVA, 2400/240 Volts, 60 Hz, is used to step down the voltage to a distribution system. The low tension voltage is to be kept constant at 240 Volts. What load impedance connected to the low-tension side will cause the transformer to be fully loaded?
1.15 Ohms
230 Ohms
115 Ohms
2.3 Ohms
When data are to be transferred over telephone lines, we often utilize modem at each end. Which of the following adapter cards (parts) will you use for interfacing a modem to a computer?
Enhanced graphic adapter
Parallel adapter
Serial adapter
VGA display adapter
During inspection of the main bearing shells and housings of a medium speed diesel engine it is found that there is evidence of fretting at some of the bearing shell joint faces, the bearing housing joint faces and also between the back of the bearings and the bearing pocket. From the options given which is the most likely cause of these defects?
Running the engine overloaded.
Excessive tightening of the main bearing bolts
Operating with a faulty torsional vibration damper.
Insufficient tightening of the main bearing bolts.
What would the Master require of the Chief Officer?
The Master would require the Chief Officer to organise a lifeboat drill
The Master would require the Chief Officer to repair the lifeboat engine
The Master would require the Chief Officer to test the lifeboat engine
The Master would require the Chief Officer to replace the lifeboat painter
What is the meaning of the abbreviation "SWL" as stamped on lifting gear around the ship?
Single Winch Load.
Safe Working Load.
Single Working Load.
Safe Winch Load.
Why should only dry powder known to be “foam compatible” be used in conjunction with foam to extinguish gas fires?
Because certain types of dry powder has a negligible cooling effect
Because certain types of dry powder can cause breakdown of a foam blanket
Because certain types of dry powder is a flame inhibitor
Because certain types of dry powder not give protection against re-ignition
What is the maximum allowed oxygen content in inert gas in accordance to IMO IGC code?
Maximum allowed Oxygen content in the inert gas on gas carriers is 7% by volume.
There are no oxygen requirement on the inert gas on gas carriers
Maximum allowed Oxygen content in the inert gas on gas carriers is 5% by volume.
Maximum allowed Oxygen content in the inert gas on gas carriers is less than 10% by volume.
How could you calculate the Stowage Factor of a cargo commodity after loading in a General Cargo vessel?
By dividing the volume of the space used by the tonnage of the commodity loaded
By dividing the gross tonnage of the space by the area of the commodity
By dividing the area of the space by the tonnage of the commodity
By dividing the gross tonnage of the space by the volume of the commodity
Which of these statements is correct?
On certain routes cargoes must always be lashed in a standard manner irrespective of season
Under the Hague and Hague-Visby rules a shipowner must make a vessel seaworthy
Seaworthiness implies cargoworthiness
A vessel must be seaworthy at the commencement of a voyage
A vessel is carrying a refrigerated cargo under controlled atmosphere (CA). From the options given select the most appropriate degree of opening of the air change vents while operating under CA.
50%
100%
0%
25%
You are going to overhaul a centrifugal pump in accordance with the PMS. The pump is running under optimal conditions and normally operated. Which of the following parts are expected to deteriorate during normal operation and thereby be due for renewal?
The impeller and the impeller fastening nut.
Ball bearings on the pump shaft, and wear rings on pump housing or impeller.
The distance pieces.
The shaft itself .
Many large 2 stroke marine diesel engines are equipped with an auxiliary scavenge air blower. What is the purpose of this equipment?
To provide combustion air at start up, during manouevring and low load running when the turbocharger delivery is insufficient.
To assist the main turbochargers in supplying combustion air when on full load.
To help cool the engine after it has been stopped.
To allow full load running when the main turbocharger is defective..
The vessel is steaming off the coast when the engine room informs the bridge it must stop engines immediately. Shortly afterwards they informed the bridge they would need a least three hours to fix it. Which of the following actions would be the most suitable taken by the bridge?
Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after three hours.
Display the NUC signal and keep a good lookout
Display the NUC signal, maintain the watch and ask the Engine room to be a quick as possible
Display the NUC signal, maintain the watch and wait for further developments.
On a Container vessel, how would you deal with a containerised scrap metal fire?
Cool the container using seawater
Allow the cargo to smoulder
Extinguish by smothering
Extinguish using seawater
Indicate the correct name for the tool on the sketch:
Grinding machine
Chisel
Flat file
Pliers
Continuity testing of a delta connected three phase induction motor yields the following results; U-V =3 ohms, V-W =3 ohms, W-U =6 ohms.Which of the following is the likely condition?
Short circuit winding between W and U
Open circuit winding between W and U
Short circuit between V and Earth
Partial fault between W and U
What is the hydraulic hand pump usually used for?
The hydraulic hand pump is usually used as a converter for the grease nipples
The hydraulic hand pump is usually used to blow up the fitter
The hydraulic hand pump is usually used to slack the brake on the windlass
The hydraulic pump is usually used for tightening the G-nuts
Fully pressurised ships are fitted with type "C" tanks. What is the normal design pressure?
Design pressure of about 12 barg
Design pressure of about 2 barg
Design pressure of about 15 barg
Design pressure of about 18 barg.
How many hours before departure should the ship's steering gear be checked and tested?
Within 96 hours
Within 48 hours
Within 12 hours
Within 1 hour
What is the full title of the IMO code which applies to all gas carriers built after 1986?
The International Code for Ships Carrying Liquefied Gases in Bulk (the IGC code)
The Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (the GC Code)
The Code for Existing Ships Carrying Liquefied Gases in Bulk (the Existing Ship Code)
The International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (the IGC Code)
What action should be taken if the heat transfer capacity of a heat exchanger operating as a lubricating oil cooler is reducing?
Increase the lubricating oil flowrate.
Decrease the lubricating oil flowrate.
The heat transfer surfaces should be cleaned.
Increase the cooling water pressure.
On a Ro-Ro vessel what would be the effect of a small GM?
An adverse affect on seaworthiness
A slow roll period
A quick roll period
Resonant rolling
Under international regulations where must entries be made with regard to the disposal of cargo residues into the sea?
In the Deck log book
In the Official log book
In the Garbage record book
In the Cargo record book
Which statement is true?
Normal temperature of the lub oil after the cooler is approx. 45 C.
When the ME is running, the Fresh Water enters the engine at the top and leaves the engine at the bottom
Normal temperature of the oil after the cooler is approx. 65 C.
Minimum scavening air temperature is 60 C to avoid dewing in the scavening air cooler
Where should the vehicle belonging to a disabled person be placed?
Preferably near an elevator or a place where you have easy access to the stairways
Near the stairways
In the after part of the car deck
As close to the bow door as possible to avoid any traffic jam during discharging
In what kind of measuring equipment might we find a Bourdon-tube?
In a temperature transmitter.
In an A/D converter.
In a pressure transmitter.
In a flow metre.
Where is the normal position of the "Pivot Point" of the vessel when going ahead?
1/4 of vessel's length from the stern
1/3 of the vessel's length from the bow.
Amidships
Normally varies dependant on the speed ahead
What is the value of GZ upto an angle of heel of 5 degrees?
GM x Sin angle of list
GM x Cosine angle of list
GM x Tan angle of list
GM / Sin angle of list
When there is doubt about the freshness of the atmosphere in enclosed or confined spaces, what action should be taken?
Open doors and manholes
Arrangements should be made for testing of the atmosphere to ensure maintenance of 21% oxygen of the space
Ro-ro decks are always ventilated in advance of an operation
Supply filter masks to all crew working on ro-ro deck
Some refrigerated cargoes can be more easily damaged than others due to rough handling. From the options given, select the cargo which is most likely to be damaged due to the use of poor handling techniques.
Potatoes in paper sacks.
Frozen beef in cartons.
Chilled plums in cartons.
Chilled meat in cartons.
On the figure 4 possible definitions of the term "AFT SPRING" are shown. Which one is the correct one?
Aft spring is defined as A on the figure
Aft spring is defined as B on the figure
Aft spring is defined as C on the figure
Aft spring is defined as D on the figure
On a RoRo vessel, why should chipping and painting not be done on a loaded car deck
because there is not enough space to work with the cargo in the way
To avoid damage to the cars or their paint work
because you cant run the ventilation and the fumes will overcome the crew
Liquefied natural gas (LNG) is often referred to as natural gas or marsh gas. What is another common name for LNG?
Propane.
Ethane.
Butane.
Methane.
What is the meaning of TLV and what unit do we use on it?
TLV is the threshold limit value and the unit is ppm - parts per million.
TLV is the total level value and the unit is ppm - parts pr million.
TLV is the technical limit value and the unit is ppm - parts per million.
TLV is the threshold limit value and the unit is litre.
What is the meaning of “remote mode” related to a slave controller?
The slave controller can be tuned by a hand carried remote controller
The slave controller can be in any mode of operation
The slave controller can be tuned from the engine control room
The slave controller receives the set-point from the output signal of the master controller
What will happen if you overload the plate in a microwave?
Standing time will need to be doubled.
You will need to double, or even treble, cooking times and accept that the outer parts of the food will be overcooked.
Cooking will be uneven and there will be "cold spots" in the food.
The oven will not work in automatic mode.
Why is it important to check the timing on the cylinder oil lubricators?
To get the right amount of oil into the cylinder.
To avoid excess lubrication.
To avoid high temperature in the combustion chamber.
To get the oil into the cylinder when the piston is in the right position.
A vessel’s aft draught reading is 8.50m with a correction factor of 0.065m; the aft draught marks are painted forward of the after perpendicular. What is the corrected aft draught if the vessel is trimmed by the stern?
8.63m
8.565m
8.37m
8.435m
There are a number of liquefied gases transported by sea. What is the most common component of these liquefied gases?
A mixture of natural gas liquids (NGLs).
A mixture of chlorine and ammonia.
A mixture of hydrocarbon gases.
A mixture of non-hydrocarbon chemical gases.
Which of the options given is the most likely reason for a drop in pressure at the charge air manifold of a diesel engine?
Air filter to turbocharger fouled or obstructed.
Increased engine load.
Charge air cooler fouled on waterside
Air passageways or ports to the engine cylinders partly blocked due to fouling.
On a Container vessel, when preparing to lift hatch pontoons why is it necessary to secure all loose material on it?
Because this is an international requirement
So that loose equipment does not fall into the cargo hold
So that pontoons are not fouled by loose material whilst being lifted
To facilitate the gantry crane operator
The engine is started by compressed air. Which one of the following statements is correct ?
If we have lost the starting air pressure, we can use a pressurized oxygen bottle from the welding equipment for an emergency start of the engine.
A heavily leaking starting air valve can cause an explosion in the starting air pipe system.
The starting air shall always contain some water.
If the engine does not turn when we open for the starting air, we can use the turning bar together with the starting air to get the engine out of a deadlock position.
What must duty crew members ensure so that ro-ro units are not damaged on board?
Units must be driven at a safe speed
Units must not be driven in poor lighting conditions
Units must not be driven over ‘D’ rings
All on-board safety signs must be intact
Which of the following statements is incorrect with regard to loading bagged fishmeal?
Cargo holds should be free of cargo residues
Cargo holds should be free of infestation
Dunnage is not required
Cargo holds do not require ventilation
The Threshold Limit Value (TLV) refers to as parts to million (PPM) by volume of gas in air. What does the time weighted average of ppm indicates?
The average of exposure to a toxic substance per day.
The maximum exposure to a toxic substance per 8 hours working day.
The maximum exposure to a toxic substance per day.
The average exposure to a toxic substance per 8 hours working day.
When considering how to deal with cargo residues during hatch cleaning at sea on a Bulk Carrier, what is the most careful consideration?
There are no restrictions on discharge of cargo residues to sea
Follow actions of previous crews
Consult MARPOL handbook and the vessels Safety Management System (SMS) for guidance
Check procedures and Arrangements manual
What purpose has the discharge booster pump on a gas tanker?
The main purpose of booster pumps is to avoid overflow during loading.
The main purpose of booster pumps is to increase the manifold pressure.
The main purpose of booster pumps is to maintain the manifold temperature.
The main purpose of booster pumps is increase the tank pressure.
The thermal conductance capability is expressed by a material's thermal conductance number and states the heat quantity. What is the denomination for heat quantity?
Enthalpy.
Joule.
Calorific value.
Watts.
In the diagram, which letter is indicating the position "MIDSHIPS"?
Midships is indicated by B, in the figure
Midships is indicated by D, in the figure
Midships is indicated by A, in the figure
Midships is indicated by C, in the figure
On a container vessel what action should be taken if a tank container of liquid ammonia is engulfed in fire
Dry chemical must not be used to extinguish the fire
Restrict ventilation
Allow ventilation
Water must not be used to cool the container
A system for continuous monitoring of the concentration of hydrocarbon gas shall be fitted in cargo pump-rooms. A continuous alarm shall be automatically effected when the hydrocarbon gas concentration reaches a pre-set level. What are the criteria for pre-setting the alarm level?
No higher than 10% of LEL.
No higher than 15% of LEL.
No higher than 5% of LEL.
No higher than 20% of LEL.
What action should be taken if a purifier starts to vibrate heavily during normal operations?
Leave the purifier running and check it again after its next scheduled sludge cycle.
Stop the purifier and then restart it
Change the flow rate.
Stop the purifier immediately. Check the machine for fouling or mechanical damage. Do not restart until cause is identified and fault rectified.
What is the purpose of Material Safety Data Sheets?
To provide all personnel including emergency personnel with procedures for handling or working with that substance in a safe manner
To provide personnel in deck- and engine department with procedures for handling or working with that substance in a safe manner
To provide the safety officer with procedures for handling or working with that substance in a safe manner
To determine if the substance is flammable or not
In a two stage compressor you will find pistons with different diameters (one is bigger than the other).Which one of the following statements is correct ?
The smallest diameter piston is the stage two piston
A big piston will give less oil content in the air.
A big piston will deliver dryer air into stage one.
The biggest diameter piston is the stage two piston.
Different packaging methods are used for the various perishable commodities which are carried by reefer vessels. What type of perishable commodity is usually packed in a cry-o-vac?
Vegetable products
Frozen meat products
Fruit products
Chilled meat products
What does a "compactor" do?
It compresses and forms raw meat into burgers, patties and other pre-formed shapes prior to packing and freezing.
It disposes of waste material through high-temperature combustion.
It crushes and compresses garbage, such as food packaging, into a more manageable shape and form prior to disposal.
It crushes and grinds food waste into small particles that can be washed overboard as "grey water".
What are the symptoms that would indicate the filter/drier unit in a refrigeration system was becoming blocked?
A large temperature drop across the drier with possible icing of the casing.
Pressure drop before the driver.
A hammering noise from the drier.
The drier casing temperature increases.
Which of the answers best summarises the information which should be provided for the bridge Officers of the Watch within an effective Voyage plan.
All of the suggested answers
Expected prevailing wind and weather
Contingency arrangements in case of problems
Courses to steer; distance off dangers; parallel index lines; expected currents; prevailing winds; distance between alteration points.
If you observe 2 vehicles having an accident on car deck during loading, what should you do?
Call the police
Report immediately to the loading officer
Call the security officer
Call the captain
Read the text in the diagram and answer the following question: When should training in personal survival techniques be given?
After one period at sea
During the first week on board
Before being employed
After joining the ship
You are alongside, port side to, about to commence loading several grades of chemicals. The Duty Officer instructs you over the walkie-talkie to proceed to the port manifold and open the valve to 4 port line. When you get there, there is no hose connected to that line. What will you do?
Open the valve to 4 port line as instructed.
Report the situation back to the Duty Officer. Request clarification and confirmation of the instruction.
Take a look at the starboard manifold. There is a hose loop between 4 port and 4 starboard lines. Assume the Duty officer must have meant this side and open 4 port line on this manifold.
Although there is no hose connected to 4 port line, there is one connected to 3 port line. Assume the Duty Officer must have meant this line and open this valve instead.
What happens to green vegetables when exposed to the presence of ethylene gas?
They turn yellow
They develop aslightly salty taste
They develop a deeper green colour
They become resistant to mould and may be kept for longer
Why should trousers worn in the galley be full length, but loose fitting?
Because ventilation will lessen the chance of cramp in the lower legs.
Because keeping the lower legs uncovered will lessen the chance of heat rash.
To lessen the chance of scalding, if a hot liquid is spilled.
Because it is the style adopted by all marine cooks.
When preparing to ballast the double-bottom tanks of a General Cargo Vessel, which of the following must be done?
All tanks ballasted at the same time
All cargo operations completed
The Chief Officer's ballast plan followed exactly
Ensure that the vessel is kept on an even keel throughout the operation
On a RoRo vessel, what is the Maximum Securing Load of mild steel shackles?
35% of the breaking strength
40% of the breaking strength
50% of the breaking strength
25% of the breaking strength
On a Container vessel, why should a vessel not carry left and right-handed twistlocks?
Because containers cannot be locked using both types of twistlock
Because there will be confusion as to whether or not containers are locked
Because international regulations do not permit it
Because the two types of twistlock have different strength ratings
When it is midsummer in northern Europe, what time of the year is it in South Africa?
Midsummer
Autumn
Midwinter
Early spring
Why are zinc anodes sometimes fitted in the seawater side of heat exchangers?
To prevent accumulation of marine growth
To reduce salinity
To prevent scaling
To protect against corrosion
If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken?
No special precautions except for having a watch man and a fire extinguisher available.
Notify Master, Deck officer and engineer in charge.The loop for this special sensor to be switched off and take normal precautions for hot work.
Disconnect the smoke detector.
Notify deck officer in charge that a fire alarm may occur.
How do you find out your duties from the alarm instruction?
By entering the alarm instruction with your cabin number
Informed by the chief officer
The ship’s handbook
Given on the spot.
How many 'thermal protective aids' are required to be carried on vessels with open lifeboats?
10 in each lifeboat
Each lifeboat should carry the same number of thermal protective aids as the number of persons it is designed to carry
One for each person on board who is not provided with an immersion suit
They are not required, providing the boat has a canvas canopy which can be rigged in cold weather
What will you serve seafarers who have been exposed to heat?
Strong cocktails with plenty ice.
Hot and spicy food.
Warm fresh water only.
Cold drinks and salt.
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.