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Home Online tests CES Oil tanker Deck Support Test online CES 5.1 for Deck department, Support level, Oil tanker vessel
Online testing: Test online CES 5.1 for Deck department, Support level, Oil tanker vessel
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The test consists of random questions on a selected topic.
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The mandatory color of a hand flare is:
Green
White
Red
Yellow
For a DSC-connection (no ‘distress alert’) with another vessel the following frequencies are used:
TX: 2187.5 kHz RX: 2187.5 kHz
Tx: 2187.5 kHz RX: 2182.0 kHz
TX: 2189.5 kHz RX: 2189.5 kHz
TX: 2177.0 kHz RX: 2177.0 kHz
Where should the placard you are shown be located, according to U.S. Coast Guard regulations ? (Title 33-Navigation and Navigable waters, § 155.440 )
In a conspicuous place at the bilge and ballast pump control station
In the wheelhouse
In a conspicuous place in each machinery space
Both in a conspicuous place in each machinery space and in a conspicuous place at the bilge and ballast pump control station
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.
When a ship is lying at anchor in a tidal area using both forward anchors, to what particular aspect should the officer of the watch be paying special attention?
When the ship swings to the tide the direction of swing should be controlled to avoid the anchor cables becoming wrapped round each other.
The ship will become controlled by the tide and the wind will not be allowed to have any effect on the direction the ship lies at anchor.
The two anchors will restrict the ships swing with the tide and the ship may not lie to the prevailing current and wind
The tension on both cables should be similar, to avoid one dragging and all the weight of the ship remaining on the other anchor only.
When is a vessel deemed to be an overtaking vessel?
When coming up with another vessel from any direction abaft her beam
When coming up with another vessel from a direction more than 10 degrees abaft her beam
When coming up with another vessel from a direction more than 45 degrees abaft her beam
When coming up with another vessel from a direction more than 22.5 degrees abaft her beam
You are drifting in open sea with a loaded VLCC, and you observe that the drift is SSE. Will the drift direction be the same for ballast condition?
Yes, it will be the same
In ballast condition the drift will be more to the east
No, drifting in ballast condition may be quite different
Loaded or ballast conditions have no effect on the drift
Your ship is equipped with a single, right-handed fixed screw. Steaming full ahead you reverse the engine to stop the ship. How will the ship react? No wind or current.
She will most likely sheer to port and stop rather quickly
She will most likely continue on a straight course
She will most likely sheer to starboard and gradually lose headway
She will stop on 1.5 times the ship's length
What is most important when transferring route plans to other nav. systems?
Both systems use same chart datum
Both systems are made by the same manufacturer
Both systems are approved by the classification society
Both systems work according to specification
In maritime radio-communication by “low power” given by a nautical phone is meant a transmitting power of:
1,0 – 1,5 watt
Don't know
O,5 watt maximum
0,5 – 1,0 watt
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
Two Fast Rescue Boats, one on each side of the ship
None providing the ship has lifeboats
One Fast Rescue Boat
Two, and at least one of the rescue boats shall be a Fast Rescue Boat
Emergency instructions in appropriate languages shall be posted in passenger cabins. Which information shall as a minimum be included in the emergency instructions?
The method of donning life-jackets, escape routes and alarm signals
Name of cabin attendant
Escape routes and alarm signals
Where to find thermal protective aids
Why is it important to have knowledge of assembling stations, even though you have no specific role during an emergency?
Enables you to correctly guide and direct passengers during an emergency.
It is where you can find all the life saving appliances.
Enables you to find your way around the ship.
Enables you to direct passengers to different shopping locations on board the ship.
The majority of medium speed main propulsion installations incorporate a reduction gearbox between the engine and the propeller shaft. Why is this arrangement usually required?
So that the engine can be more easily reversed.
So that the engine can be coupled to a controllable pitch propeller.
So that the propeller operates in a relatively efficient speed range.
So that the engine can also drive a shaft alternator.
For which duties are gear and screw pumps normally employed?
Bilge pumping.
Main sea water circulation systems.
Fuel and lubricating oil services.
Jacket cooling water circulation for diesel engines.
What is the minimum number of independently driven fire pumps that must be provided on passenger ships of 4000 tons gross tonnage and upwards?
5
2
4
3
Under the IMDG code what class is assigned to a Fumigated Container?
Class 8
Class 9
Class 5
Class 6
What is the main problem associated with a bulk cargo suffering moisture migration and developing a flow state
The may block up bilges
The cargo pile will remain stable
The cargo becomes semi-liquid and shifts easily causing major stability problems
The cargo may produce carbon dioxide gas
The bones in the human body are connected to each other by:
Different type of joints
Muscles
Fibrous tissues
Tendons
What is the meaning of the term “Range” of a transducer
The maximum output signal
The difference between possible maximum and minimum measurement
The maximum length of the connecting leads.
The type of measurement
It is possible to successfully mix certain types of refrigerated cargo in the same space if they are compatible. Sometimes apparently dissimilar cargoes can be successfully mixed. Which one of the combinations given in the options could be successfully carried as a mixed cargo in the same cargo space?
Oranges and butter.
Oranges and rock lobster.
Oranges and bacon.
Oranges and apples.
In a PID controller it is possibile to change the setting of the Proportional band (P), the Reset time (I) and the Rate time (D). Please indicate which curve shows the typical response to a step input, if the variables are well adjusted.
Figure 4.
Figure 3.
Figure 2.
Figure 1.
What is "Viscosity"?
The property of a liquid which determines its resistance to flow.
The scale which records the pour point of liquids.
The ability of a substance to overcome friction.
The term used to
In a fresh water tank with a height of 5 meters we shall use a pressure transmitter for level measurement. The tank has a vent-pipe leading to deck 8 meters above the top of the tank. What pressure shall we use as a guidance when ordering the pressure transducer?
1,3 Bar.
2,0 Bar.
0,5 Bar.
0,8 Bar.
What are the responsibilities of a watch-keeping engineer?
The responsibilities of a watch-keeping engineer are to inform the Master of all events that occur duing the watch.
The responsibilities of a watch-keeping engineer are to inform the Chief Engineer of any situations that cannot be controlled during the watch
The responsibilities of a watch-keeping engineer are to by-pass, adjust and isolate all machinery under his supervision.
The responsibilities of a watch-keeping engineer are to ensure that all engine room ratings are wearing protective clothing.
What should be done after discharging coal with a high sulphur content from a bulk carrier?
Areas of corrosion in the cargo holds should be noted
An inspection of cargo hold areas prone to cracking should be carried out
An inspection of cargo hold areas prone to fatigue should be carried out
Cargo holds should be thoroughly washed and cleaned
If a vessel’s Longitudinal Centre of Floatation (LCF) is 60.582 in saltwater, what would be her LCF is water of density 1.015 T/m3?
60.582m
61.178m
63.027m
59.99m
Is smoking permitted in the galley? (Select the most correct answer)
No.
Yes, but only once food service is completed.
If the vessel is in port, it is prohibited; if the vessel is at sea, then it is permitted.
Yes, because it is not considered a public area.
Before each cargo tank is crude oil washed (COW) the oxygen content must be determined at?
A point 1 metre below the deck and at a point 2 metres above the bottom..
A point 1 metre below the deck and at the middle level of the ullage space.
A point 2 metres below the deck and at the middle level of the ullage space.
Why are hypochlorite based treatments used on some sea water cooling systems?
To prevent biological growth in the system.
To reduce sediment build up in the system.
To prevent corrosion of the system
To increase the heat transfer capacity of the system.
This graphical symbol is a logic gate. Which gate?
OR
AND
NAND
NOR
Can slop tanks be used for the carriage of oil and are they therefore included in the total cargo capacity of an oil tanker?
Slop tanks may be used for the carriage of oil when not being used for the carriage of slops and are included in the total cargo capacity of the vessel.
Slop tanks may only be used for the carriage of oil on clean ballast tankers and are only included in the total cargo capacity of this type of vessel.
Slop tanks may only be used for the carriage of oil cargo by agreement between the shipper, receiver and charterer. They are not normally included in the total cargo capacity of the vessel.
Slop tanks may not be used for the carriage of oil cargo under any circumstances and are not included in the total cargo capacity of the vessel.
In a low pressure auxiliary boiler, what would be considered to be the maximum allowable chloride level of the boiler water?
300 PPM.
1000 PPM.
50 PPM.
600 PPM.
On a Container vessel, when will a full container experience a force of 100% of its weight?
When the ship is heaving
When the ship is rolling and pitching
When the ship is rolling
When the ship is pitching
When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure. Why is this?
To avoid over-capacity in the IG generator.
To avoid locking the cargo pump impeller.
To minimise blowback.
To comply with MARPOL Annex VI.
What is a likely cause of fishmeal fires?
A moisture content less than 6%
Ineffective antioxidant at the time of production
Too much antioxidant at the time of production
Fat content less than 10%
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
What is a "consignee"?
Any person or company which seeks to transport a consignment of cargo by sea.
Any person, organization or government that prepares a consignment for shipment.
Any person, organization or government entitles to take delivery of a consignment.
Any person or company responsible for the operation of a vessel which carries a consignment as freight.
What is a deck lift vehicle?
This is another term for a portable vehicle deck
A portable deck used to raise or lower vehicles
A vehicle used to raise or lower portable decks
A vehicle used to raise or lower decks on which vehicles are stowed
The figure shows the cross section of a ship floating in water with the hull coloured in red and the seabed below the vessel shaded. On this figure there are four (4) possible definitions of the term "UNDERKEEL CLEARANCE" given. Which one is the correct one?
Underkeel clearance is given by B on the figure
Underkeel clearance is given by D on the figure
Underkeel clearance is given by A on the figure
Underkeel clearance is given by C on the figure
What must be ensured at the commencement of cargo operations?
That the draught survey has been completed
That all fire dampers are closed
That all fire dampers are open
That CO2 gas lines to each cargo hold are clear
What is the difference between methane and ethane?
Ethane has two more carbon atoms and two more hydrogen atoms.
Ethane has double bonding between the atoms.
Ethane has two more carbon atoms and one more hydrogen atoms.
Ethane has one more carbon atoms and two more hydrogen atoms.
Where shall you be able to activate the ship security alert system on board ro-ro passenger ships?
Navigation bridge
Captain's- and Chief Officer's office
Captain's office
From the navigation bridge and in at least one other location
A general cargo vessel is loading to summer loadline marks; where should be the final level of water ?
The top of the winter mark
The mid point between the summer and the tropical mark
The bottom of the summer loadline mark
The top of the summer loadline mark
When is it necessary to seal a CO2 injection line into the designated ballast hold?
When testing the CO2 system
Prior to ballasting the hold
When carrying non-inflammable cargoes
When handling cargoes that emit dust
A lubricating oil having a high viscosity index number would normally be used in which of the following situations?
When the machinery operates at a very high temperature.
When the machinery operates at a high load.
When the machinery operates at a very low temperature.
When the machinery operates over a wide temperature range.
The instrument air system is suffering from excess water carry over to the instrument air lines. The air intake to the compressor has very high humidity. Which of the actions given in the options will most likely result in reducing this problem?
Use an additional coalescer filter in the inlet to the instrument air filter system.
Shorten the time between automatic receiver drain blow downs.
Reduce the superheat setting on the instrument air refrigeration/dryer unit.
Increase the cooling water flow through the compressor intercooler and aftercooler.
To which of the following ratios are transverse accelerations related?
Ship’s breadth divided by LCB
Ship’s breadth divided by the maximum righting lever
Ship’s breadth divided by GM
Ship’s breadth divided by the distance between cargo units and the ship's centreline
Why do we use stabilisers on passenger ships?
To adjust the trim of the vessel
To decrease the rolling angle of the vessel
To increase the intact stability
To decrease the dynamic stability
What precautions must be taken prior to loading cement after carrying sugar?
No traces of sugar should remain in the cargo holds
The cargo holds must be inspected
Steelwork in the cargo holds must be protected by straw mats
Steelwork in the cargo holds must be protected by kraft paper
At what calendar interval must cargo hoses in service on board be tested and certified as fit to continue in use?
Every 24 months.
Every 12 months.
They do not need to be tested and re-certified for the first three years, but must be tested and certified every 12 months after that.
Testing is not calendar based. Cargo hoses must be tested and certified every 48 operations.
For a low pressure boiler, after testing the water cloride level, it is found to be 500 PPM, what action would You take?
Do nothing.
Increase dosage.
Decrease dosage.
Blow down boiler and check condenser for leakage.
What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?
The error due to deviation is large for that ships heading
The heeling error magnets are upside down and/or not in the correct position.
The Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.
The induced magnetism from the earth's magnetic field is very strong in that area
The insulation resistance (IR) to earth of a new galley hot-plate is measured to be 30 Mohm. When three identical hot-plates are tested together their combined IR will be:
90 Mohm
10 Mohm
30 Mohm
3 Mohm
What causes deterioration of a hatch cover hydraulic system?
Extremes of weather
Repeated hatch cover operations
Ice accretion on piston jackets
Dust and cargo particles around the piston seals
Why is it important in a RoRo vessel to ensure that cargo is loaded in a uniform way
because it looks better and image is important
because it makes it harder to lash the cargo correctly if you don't
To prevent high sheer forces and bending moments on the vessel during the loading / discharge operations
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.
The cargo containment system for some LNG carriers is in the form of spherical tanks. What is the IMO classification for this type of tank?
Spherical self-supporting, type "A” tanks.
Spherical non-self-supporting, type "C" tanks.
Spherical tanks with full secondary barrier.
Spherical self-supporting, type "B" tanks.
Where on a ship is the deck known as the "Boat Deck"?
The Boat Deck is the name of the main deck of the ship or boat.
The Boat Deck is the deck where access would be made from any boats alongside.
The Boat Deck is the deck from which persons embark into the lifeboats
The Boat Deck is the deck of a life boat
Which statement about the garbage record book is true?
Each entry is to be written in the language of the ship's flag state
It is required by all ships on International voyage
Each entry is to be signed by the Master
It is used to record all operational and accidental garbage discharges
A refractory material is one that will retain its solid state even at very high temperatures, and furnace temperatures as high as 1650 °C have been recorded in marine boilers. What is the primary purpose of using a refractory?
They act as a heat sink, and ensure more even distribution of heat throughout the furnace.
All of the mentioned alternatives.
They are used to protect exposed parts of drum, which otherwise could become overheated.
To protect the furnace casing from overheating, burning and possible escape of gases into boiler room.
What dangers are associated with using a steep loading ramp?
The ramp's hoisting wires can be damaged
The ends of ro-ro units can be damaged
It will not be possible to drive vehicles off the ramp
The ramp may slide off the pier
A three phase alternator is connected singularly to the main switchboard. The switchboard instruments show 400 Volts/500 amperes. With a power factor of 0.5 what will be the kW load?
100 kW
57.5 kW
250 kW
173.2 kW
A bulk cargo of steel coils is loaded and a number of the coils are noted by the Chief Officer to be rusted; what must the Master ensure?
Steel coils to be discharged
Clause the Bill of Lading with the reference numbers of the rusty coils and so make the Bill of Lading a "dirty" Bill.
No action needs to be taken.
Cargo temperatures measured on voyage
How could your menus best contribute to reducing the number of dental problems amongst the ship's crew?
By ensuring that at least two portions of vegetables are available with every meal.
By limiting the use of sugar-rich foods and beverages and those containing high levels of starch.
By increasing the amount of red meat served on board.
By ensuring that a minimum of 1.5 grams of salt per person is included in the daily menu.
When overhauling a medium speed diesel engine cylinder cover part of the work involves inspection of the springs for the inlet and exhaust valves. Which of the options given would be the normal inspection method used?
Visual inspection and measurement of free length.
Visual inspection and measurement of spring compression under a known load.
Inspection using dye penetrant and measurement of spring compression under a known load.
Inspection with ultra sound and measurement of free length.
How might a leak from a cargo tank on an oil tanker be readily detected during the voyage?
By regularly monitoring the vessel's trim on the cargo computer - any cargo that leaks will run to the end of a compartment, resulting in an increase in trim.
By occasionally opening a selected tank and manually measuring the cargo ullage, then comparing it to the 'after loading' reading.
By regularly monitoring void and ballast spaces, such as by testing them for hydrocarbon content and sounding them.
By frequently monitoring cargo level equipment readouts and comparing them to the load port departure readings.
When will the Longitudinal Bending Moments caused by the cargo distribution need to be taken into account on an oil tanker?
Only during loading and discharging cargo
During loading, discharging and on loaded passage
Only when on passage in heavy seas and when the vessel is pitching
All the time
You have just finished loading a cargo of Methyl Isobutyl Kentone. What must happen before the shore hose can be disconnected?
The drip-tray must be half-filled with fresh water.
All possible cargo residues in the line must be drained or cleared and any pressure relieved. The manifold valve and shore valve must be confirmed as closed.
Any pressure remaining in the hose must be relieved by rapidly slacking off the bolts on the connecting flange.
Any cargo residues in the line must be drained to the drip-tray. The manifold valve on the ship must be open to allow maximum drainage and only closed after the hose has been removed.
What is Inert gas ?
It is a gas containing insufficient oxygen to support combustion of hydrocarbons
It is a gas containing only nitrogen
It is a gas containing less than 21 % by volume oxygen
It is a gas containing no oxygen
Hydrocarbons belongs to a chemical group named:?
Alkanes
Organic substances.
Carbohydrates.
Alkenes
Compressed air for instrument and control purposes needs to be of high quality. In order to condition the air filter modules are usually fitted to remove the contaminants. If there is evidence of oil carry over to the final elements in the instrumentation air system what is the most likely cause?
The coalescer module is saturated and requires renewal.
The drier section of the module needs to be regenerated.
The air compressor piston rings need to be renewed.
The particle removal module is choked.
The specified maximum working pressure of a cargo hose in service on a chemical tanker should be at least which of the following?
1/3 design burst pressure.
10 bar gauge.
12 bar gauge.
5 bar gauge.
What is usually the effect on G when the ship is damaged?
It rises.
It first rises and then lowers.
It is unchanged.
It lowers.
What is the purpose of introducing inert gas into cargo tanks?
To create a non-explosive atmosphere in the tank.
To reduce the static electricity potential in the tank.
To prevent evaporation of cargo.
To make the tank safe for entry.
Which of these statements is correct?
Cargo residues are not Marine Pollutants under the IMDG Code
Cargo dissolved in bilge water is considered cargo residue
Cargo dissolved in bilge water is not considered cargo residue
Cargo residues are Marine Pollutants under the IMDG Code
Why should heavy-duty footwear, with non-slip soles and re-inforced toecaps, that fully cover the foot, be worn when working in the galley and storerooms?
To avoid the possibility of injury if a sharp or heavy object is dropped, or a hot liquid is spilled, or the floor becomes slippery.
Because footwaer of this type will support the wearer better and avoid aches and pains developing in the feet and lower legs.
Because you never know when you may have to go out on deck.
Because footwear of this type eliminates the possibility of fungal foot infections through exposure to moist and humid conditions as may be experienced when working around a galley range for prolonged periods.
Vibration analysis is often used as a conditioning monitoring tool onboard ship as part of the approved planned maintenance system. Many vibration measuring instruments are fitted with a harmonic filter/analyser. How would these filters normally be used during vibration measurement on a centrifugal pump?
To block out any noise or vibration from the surrounding engine room.
To isolate a single frequency of vibration associated with one of the pumps components.
To sum up all the harmonics of a base frequency to give total vibration for all of the pump's components simultaneously.
To generate an audible sound signal at the same frequency and amplitude as the vibration.
Earlier reefer vessels designed and built for liner trade usually had two or three tween decks approximately 2 to 2.5 metres in height and deep lower holds approximately 4 to 5 metres deep. Modern designs usually incorporate more decks each approximately 2.3 metres in height. What is the main reason for this fundamental design change?
The increased proportion of chilled as opposed to frozen cargoes that are carried.
There is an almost universal use of standard height pallets.
It is easier to construct vessels with shallow decks.
The increased number of container vessels has reduced the tendency to carry general cargo outbound from Europe or North America to Australia and New Zealand on reefer vessels.
What is the name given to the mixture in which meat or fish can be laid for a few hours to add flavour right through the dish?
Macedoine.
Mignonade.
Marmalade.
Marinade.
What would be the effect of a faulty steam trap on a fuel oil heater causing condensate to build up in the heater exchanger?
An increase in fuel oil temperature.
Low water level in the boiler.
Reduced heating capacity of the heater.
Excess pressure on the shell of the heat exchanger.
In a single side skin bulk carrier of 180m in length constructed in 2001 and carrying cargo of density 1,780 kg/m3, or above, which cargo hold is strengthened to withstand flooding?
The aftermost cargo hold
The ballast hold
The midships cargo hold
The foremost cargo hold
What is the minimum length of rubber insert when replacing a damaged section of the hatch cover seal?
250 mm
200 mm
275 mm
500 mm
Which of the following statements is the most appropriate with respect to cargo after loading on a General Cargo Vessel?
All cargo must be fully secured before the vessel sails
Cargo securing must be completed within 2 hours of commencing the voyage
Cargo need only be secured if bad weather is forecast
Cargo must be fully secured before the pilot disembarks
You are in charge of loading a crude oil cargo at a terminal which employs a Vapour Emission Control System (VECS). What should you do if the flow of gas to shore reaches the maximum declared capacity of the system?
Open the mast riser vents to relieve the excess pressure and bring the flow within the declared range.
Communicate with the terminal and request a controlled reduction in the loading rate until the flow again comes within range.
Reset the lifting pressure level on the Pressure / Vacuum valves to allow them to release more vapour to atmosphere.
Say nothing and hope nobody notices, so that loading is completed as soon as possible. .
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 the figure 4 possible definitions of the term "FORWARD BREAST LINE" are given. Which one is the correct one?
Forward breast line is given by C on the figure
Forward breast line is given by D on the figure
Forward breast line is given by A on the figure
Forward breast line is given by B on the figure
During bunker transfer operations, deck scuppers should be:
Plugged when required
Plugged to prevent spilled oil flowing overboard
Only fitted to the side of the vessel that bunkers are being loaded
Attended by crew to collect any spilled oil that approaches
What is the purpose of introducing inert gas into cargo tanks?
To make the tank safe for entry.
To reduce the static electricity potential in the tank.
To create a non-explosive atmosphere in the tank.
To prevent evaporation of the cargo.
Why can't we use inert gas from a combustion-type generator when preparing cargo tanks for ammonia?
Because of the high temperature in the inert gas.
Because ammonia reacts with the carbon dioxide in the inert gas.
Because of high water content in the inert gas.
Because of the high oxygen content in the inert gas.
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.