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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Question 1 from 90

According to European standards (E.N.) fire can be classified…

A, B, C, D, E

A, B.

A, B, C, D

A, B, C

By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?

The pump will not draw liquid.

The pump will overheat.

The pump will suffer damage

The pump needs to run faster.

On board they want to have a dial-phone call via Inmarsat with the Apollogracht. In the guides the following ID’s are found for the Apollogracht:344320000, 424432010, 424432020, 1300210, 36715. What ID should be chosen:

424432010

424432020

1300210

Don't know

Your vessel has been in involved in a collision with an other vessel. As Master responsible for the ship and persons on board, what is the first step to take?

Organise someone to assess the extent of damage and the residual stability of the vessel.

Determine is there is any evidence of pollution.

Determine any injuries or deaths of persons on board

Communicate with the other ship.

When is a ro-ro vessel likely to pitch heavily?

When wave lengths are roughly equal to twice the ship’s length

When wave lengths are roughly half the ship’s length

When the seas are from astern

When wave lengths are roughly equal to the ship’s length

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.

If a vessel is rolling heavily in a seaway and has negative GM and a small Angle of Loll, describe how the vessel will roll.

Roll unevenly flopping over between the Angle of Loll on each side.

Roll evenly either side of the upright position.

Roll evenly each side of the Angle of Loll.

Roll between the Angle of Loll on each side.

What does this signal hoist mean?

I require immediate assistance.

Do you require assistance?

Stand by to assist me.

I require medical assistance.

You have just completed tank inspection, prior to loading a number of chemical grades. The Duty Officer instructs you to secure the tank lids. (On this vessel, they are circular in design, with four dogs and the lid is raised and lowered on a geared wheel). Which of the following methods will you use to secure the lids?

I will swing the lid over the coaming and postion the dogs, tightening down the two furthest from the geared wheel first, then the two closest to the wheel. I will then take any remaining pressure off the wheel.

I will lower the lid with the geared wheel, ensuring that the coaming rim sits centrally against the packing. I will then position and tighten the dogs, working back and forth so that an even pressure is applied overall.

I will lower the lid with the geared wheel and then work round the dogs in a clockwise direction, tightening each one right down in turn.

I will lower the lid with the geared wheel, screwing it down as tightly as possible, then position the dogs, so that the lid remains centrally positioned while the ship is as sea.

Which of the statements given in the options relating to LNG carriers is true?

LNG is normally carried in fully pressurised gas carriers.

LNG is always carried at very low temperature.

The size of an LNG carrier is limited to no greater than 50,000 m3 cargo capacity.

All LNG carriers are fitted with spherical tanks.

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

When loading LNG into prismatic type cargo tanks it is sometimes prohibited to leave any of the tanks between 10 to 80% full at completion of loading. What is the main reason that it is recommended to avoid this prohibited partly filled range?

The free surface effect might result in excessive sloshing loads.

It will increase the rate at which boil off gas will be produced.

It would be an uneconomical use of cargo capacity.

It will increase the vapour space and therefore increase the risk of flammable mixtures developing.

Temperature sensors of all types are normally mounted in a well, or pocket, when used in pipelines. Why is this done?

Allow removal of the sensor also when liquid is flowing in the pipe.

Decrease the temperature gradient between the liquid and the sensor.

Avoid electric current flowing from the sensor to the liquid.

Suppress electro-magnetic interference between liquid in the pipe and the sensor.

A bulk carrier is to carry a full deck cargo of packaged timber; to what regulations must the vessel comply?

Grain Regulations

International Code for the carriage of Dangerous Goods

IMO Code of Practice for the carriage of Timber Deck cargoes

Marine Pollution Regulations

What signal may be given by sound and by light to indicate that a vessel fails to understand the intentions or actions of another vessel, or is in doubt that sufficient action is being taken by the other to avoid collision?

Five prolonged blasts (flashes).

Three short and rapid blasts (flashes).

One prolonged blast (flash), followed by five or more short and rapid blasts (flashes)

Five short and rapid blasts (flashes).

Is there any requirements regarding crew’s language skills?

All crew working directly with passengers must be able to communicate on the language spoken by the majority of the passenger.

Yes, all crew must be able to communicate on the language spoken by the majority of the passengers, or demands set by the company.

All crew working directly with passengers must be able to communicate on the language spoken by the majority of the passenger and english.

All crew must be able to speak english

You are proceeding up a river, with berths on both banks. You see this flag hoist on a vessel moored on a berth ahead. What does it mean?

My engine is disabled.

Caution! I have an anchor down.

You should proceed at slow speed when passing me.

I am about to depart the berth.

What action should be taken by the Officer of the Watch when the GPS fails?

Stop ship until it is repaired and fully functional

Call the Master

Inform the technical officer responsible for the electronic navigational equipment and continue on passage using alternative navigational methods

No special action needs to be taken, just continue on the passage and wait for it to be fixed.

You are to supervise a hot work repair in a cargo tank on an oil tanker. You have measured the atmosphere inside the compartment as 21% oxygen content by volume and less than 1% LFL hydrocarbon vapour concentration. Does this mean the work can commence? (Select the most correct option)

No. The flammability reading should be maximum 0.5% LFL hydrocarbon vapour concentration for any hotwork to take place. .

Yes, provided that continuous readings are maintained throughout the operation and flammability readings do not exceed 2% hydrocarbon vapour content in the immediate vicinity of the hotwork site. .

Yes. The minimum safe requirements for hot work have been met.

No. Further precautions need to be taken. The area around the work site needs to be cleaned and checks need to be made on adjacent spaces. Additional precautionary measures may need to be put in place.

Semi-pressurised liquefied gas carriers are often fitted with direct, single stage reliquefaction plants for cooling the cargo and dealing with boil off vapours. What cooling medium is usually used in the condenser to condense the cargo vapours for this type of system?

Fresh water.

Sea water.

Refrigerant gas.

Air.

Why is an inhibitor added into, for instance, butadiene?

To prevent the cargo producing heat.

To remove the oxygen and by that avoid a chemical reaction.

To minimise the tank pressure.

On the charter’s recommendation.

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

Which of the following letter combinations represents a level indicating controller on a process and instrumentation diagramv

CIL

LIR

CIR

LIC

Which herb, native to the Mediterranean region, has green spiky leaves and is often used in the preparation of lamb dishes?

Thyme

Parsley

Rosemary

Sage

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 .

What is the normal maximum oil content permitted for machinery space bilge overboard discharge via OWS equipment?

15 ppm

100 ppm

Zero ppm

50 ppm

MARPOL Annex VI and IMO MSC Circ 585 "Standards for Vapour Emission Control Systems" require that P/V valves in such a system on an oil tanker should relieve the pressure or vacuum once they reach specified levels in a cargo tank. The design is approved by the administration, but what are the usual pressure and vacuum levels required to activate the P/V valves?

Pressure 7 psi (0.048 bar) Vacuum: 1 psi (0.069 bar)

Pressure: 3.2 psi (0.22 bar) Vacuum: 1 psi (0.069 bar)

Pressure: 1 psi (0.069 bar) Vacuum: 0.5 psi (0.034 bar)

Pressure: 0.5 psi (0.034 bar) Vacuum: 0.2 psi (0.014 bar)

Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?

An increased number of air changes may be required when vehicles are being loaded or unloaded, or where flammable gases or liquids are stowed in closed ro-ro spaces

The manufacturer of the fans recommends continuous operation to reduce maintenance cost

It is better to run the fans continuously instead of testing the atmosphere

It is easier for the crew, they don't have to think about starting and stopping of fans

Who is responsible for completing the DoS on behalf of the ship?

Chief Officer

Ship Security Officer

Company Security Officer

Chief Engineer

What is mean by bulk Grain cargoes have a low angle of repose?

Likely to produce toxic gas

Always stable

Unlikely to shift

Liable to shift

What is the correct way that the lookout should report the appearance of a light, in clear visibility, on the port side of the ship in a direction half way between right ahead and abeam?

The lookout should state "Light on the port bow"

The lookout should state "Ship observed 45 degrees to port"

The lookout should state "Ship seen to port"

The lookout should state "Light 4 points to port"

Can a ZENER BARRIER be installed in a hazardous area?

Yes, that's what the zener barrier is made for.

Only in equipment operating on very low voltage.

No, as only the output from the barrier is intrinsically safe this is not allowed.

Only if properly marked for such installation.

What is a Gangway?

A Gangway is an interval of time between a change of working gangs, on board

A Gangway is a portable means of access to a ship

A Gangway is an accommodation ladder

A Gangway is a temporary means of access into the cargo holds

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.

When you are calibrating an instrument what is the most common second step in the procedure (consult the manual)

Adjustment of span

justment of Zero-point

Adjustment of range

Check linearity

Recording the pulp temperature of fruit at all stages of the transport chain provides a valuable record of the status of the product. Which of the procedures given in the options should be adopted by a deck officer when dealing with the fruit?

After taking the pulp temperature the individual piece of fruit should be retained in the space with other specimens that have been used

After taking the pulp temperature the individual piece of fruit should be discarded as the specimen used will usually spoil rapidly.

It does not matter whether or not the specimen is left in the cargo space as the carriage temperature will preserve it.

After taking the pulp temperature the individual piece of fruit should be returned to the carton of fruit from which it was sampled

Gas detectors are widely used on liquefied gas carriers. Before using a portable combustible gas indicator which has not been used for a period of a few hours what action should be taken?

Just renew the batteries. A calibration is only required if the instrument gives false readings.

Just check the filters. If the sample is free to flow the indicator will work correctly.

Just carry out a zero check and adjustment. If the instrument reads zero correctly it will also read correctly throughout the scale.

Always carry out a full calibration and battery check.

What is the reason for gassing up cargo tanks before loading?

Cooling down cargo tanks.

Removal of inert gas from cargo tanks.

Reduce CO2 content in cargo tanks.

Decrease oxygen content in cargo tanks.

What is the depth of an iceberg below the surface of the sea?

The draught of an iceberg varies with the type of berg and its age.

The depth of an iceberg below the surface is always about one sixth of its total depth.

The draught of an iceberg is normally about 3/4 of its total depth.

The draught of an iceberg is about the same as the visible part of the iceberg above the water.

What is the structure to which fiberglass yachts are secured once loaded on board?

Flatrack

Yacht Bay

Pallet

The cradle

Which of these statements about drug smuggling is true?

"The preventative measures you incorporate into your ship’s security plan should be exhaustive, regardless of the level of threat identified by your ship’s security assessment."

The risks to ships are not restricted to specific areas or trading routes.

Drugs are difficult to conceal onboard a ship.

"Drug smuggling is only a problem in certain ports, so only ships sailing in those ports need to implement preventative measures."

Why is it important that a transmitter has been correctly installed at the correct place

Can be installed anywhere in the piping system

It must be easy to observe for troubleshooting

It is important to have easy access to the transmitter for maintenance

The control system is depending on the best possible process signal

Which of the following forms of food poisoning is particularly associated with outbreaks on cruise ships?

Staphylococcal enterotoxin.

Norwalk virus

E-coli.

Salmonella enteritidis.

Many modern boiler burners operate with automatic modulating combustion control? Which of the following is necessary to ensure high efficiency and low emissions throughout the load range with this type of operating control?

Shortened furnace pre-purge sequence.

Operation on distillate fuels.

High turndown ratio for the burner.

Operation with an increased amount of excess air.

What action should be taken by the Officer of the Watch in the event of fire being reported to the bridge during the 00.00 to 04.00 watch?

Send the bridge look-out down to investigate

Sound the Fire Alarm

Stop engines and inform the engine room

Call the Master

What should be the breaking stress of lashing belts used to secure light vehicles, on board a ro-ro vessel?

3.0 to 3.5 tonnes

1.2 to 1.5 tonnes

2.0 to 2.5 tonnes

4.5 to 5.0 tonnes

A positive displacement, rotary type, volumetric flow meter reads low with an error reading of 1% when used to measure flow of heavy oil and 2.5% when used to measure the flow of diesel oil. From the options given select the most likely cause of this difference in error?

The lower mass of diesel oil results in a lower reading.

The higher viscosity of the heavy oil is slowing down the rotary element in the meter.

The low lubricity of the diesel oil is increasing the friction in the rotating element and slowing the rotor down.

The meter is worn internally.

Why does a hatch cover hydraulic system deteriorate?

Due to dust and cargo particles lodging around the piston seals

Due to hatch cover operations in high summer temperatures

Due to repeated hatch cover operations

Due to ice accretion on piston jackets

On a Container vessel, what should a crew member do if a tank container on deck is found with a leaking valve?

Close the leaking valve

Wash away the leaking contents immediately

Raise an alarm

Report it immediately to the duty officer

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

Why is it important to have an efficient fire patrol system on board passenger ships?

To ensure that an outbreak of fire may be prompltly detected

To control that passengers adhere to smoking regulations on board

To verify that the automatic fire-detection system is working properly

To show passengers in public areas we are on duty 24 hrs

Who can carry out a Quadrennial Thorough Survey of cargo gear?

A classification society surveyor

A deck officer designated by the master

A marine surveyor

The master

Where should a container containing Calcium Hypochlorite be stowed?

Away from sources of heat

Away from cargo transport units containing class 6 IMDG cargoes

Under deck

Away from the centreline of the ship

Thermocouples are often used for measuring temperatures. Which of the following descriptions are valid for a thermocouple?

A junction between two dissimilar metals generates a small voltage.

A semi-conductor device that exhibits a negative coefficient of resistance with temperature.

A resistance device that exhibits a positive coefficient of resistance with temperature.

A quartz crystal that changes its resonant frequency with temperature.

Most maintenance and repair tasks carried out onboard ship require a permit to work which will include a full risk assessment. Where would an engine room rating find out about the precautions that are required as a result of the risk assessment for a particular task?

Code of Safe Working Practices (COSWP)

Ships Safety Management Manual (ISM Code procedures)

Chief Engineer’s standing orders.

Engine room log book.

The image shows an arrangement of electronic components which is often used for a particular reason. What is this type of ciruit usually called?

A zener barrier.

An amplifier

A rectifier

A measuring bridge

This graphical symbol is a logic gate with truth table. Which gate?

NOR

AND

NAND

What is a "bouquet garni"?

A type of cocktail.

A bunch or sachet of herbs used to add flavour during cooking.

A bunch of flowers to add a pleasant smell to the galley.

A French dressing, added to meat after serving.

What general background colour is used on warning signs that indicate emergency or first-aid features, or indicate a safe condition?

Blue.

Green.

Yellow.

Red.

A piston ring set for a trunk piston engine often includes a slotted ring tensioned by an internal spring. What is the purpose of this type of piston ring?

It is an oil control ring.

It is a ring to seal the crankcase from the combustion chamber.

It is the firing ring.

It is the lowest compression ring.

What is the normal name of the waterproof suit shown in the picture?

Fluorescent orange suit

Survival suit

Wet suit

Life suit

What term is applied to the running of a number of cargo pumps together to discharge a homogeneous cargo from multiple tanks simultaneously up a common discharge line?

Series pumping.

Integrated discharge.

Parallel pumping.

Simultaneous discharge.

The Reid Vapour Pressure (RVP) test is a simple and commonly used method for measuring which of the following characteristics of an oil cargo?

The nominal vapour pressure of the liquid at 38.7 degrees C.

The actual vapour pressure of the liquid at 15.6 degrees C.

The uncorrected vapour pressure of the liquid at 59 degrees C.

The absolute vapour pressure of the liquid at 37.8 degrees C.

What is the purpose of a cargo vaporiser as fitted to LNG carries?

To check the membranes of the cargo containment system for leakage at regular intervals.

To produce the vapour to displace the inert gas from cargo tanks prior to cooling down and loading and for maintaining the pressure in the cargo tank during discharge.

To produce the nitrogen for removing vapour from the cargo tanks ready for gas freeing.

To generate the boil-off gas for use as fuel in the vessels propulsion plant.

Too low exhaust temperature in one cylinder becomes because of:

Injection valve opening pressure is too low.

Charge air pressure is too high.

Injection valve opening pressure is too high.

Any of the others.

When a blackout occurs: what should be your first reaction?

Investigate the cause of the blackout

Inform the Chief Engineer

Inform the bridge about the reason for blackout, and expected time to restart.

Cancel audible alarms

How many two-way VHF radiotelephone apparatus shall be provided on board a passenger ship of 500 gross tonnage and upwards?

One for each survival craft

It is required to have a fixed two-way VHF fitted in a survival craft

What is the correct understanding of the tem "Angle of Loll" when applied to ships stability?

The angle the ship will lie when the ship has a negative GM

The maximum angle to which the ship rolls when rolling in a seaway.

The angle the ship will lie when it has suffered a shift of cargo.

The angle of heel which the ship must reach before suffering progressive flooding through deck ventilators.

Some of the cargoes carried onboard liquefied gas carriers are classed as saturated hydrocarbons. What are the features of the common saturated hydrocarbon cargoes (e.g. propane and butane) that are carried on these vessels?

As liquids they are colourless, odourless and are chemically non-reactive.

As liquids they are yellowish brown in colour, odourless and are chemically reactive.

As liquids they are yellowish brown in colour, with a sweet odour, and are chemically non-reactive.

As liquids they are colourless, with a sweet odour, and are chemically reactive.

What is the main effect on lubricating oil of operating for long periods at excessively high temperature?

It will change the flashpoint of the oil.

It will cause the oil to oxidise, reducing the viscosity.

It will cause the oil to oxidise, increasing the viscosity.

It will cause the oil to evaporate, increasing consumption.

The high level water ingress alarm in number 1 hold of a Bulk Carrier activates in bad weather at sea; what would be the actions of a prudent Master?

The alarms could be faulty and should be ignored

Investigate when the weather improves

Sound general alarm, muster ships crew and transmit a Mayday call and message.

Assess all spaces for signs of damage if weather conditions permit

What is mayonnaise made from?

Egg yolks, oil and lemon juice or vinegar.

Eggs and olive oil, beaten together.

Fromage Frais and lemon juice.

Egg whites, sunflower oil, balsamic vinegar and flour.

What name is given to the inspection and measurements at the end of a bulk carrier's loading operation, that determines the weight of cargo lifted based on the observed draughts, any list, hog or sag, the dock water density and the calculation of ballast and consumables on the vessel?

Port Measurement.

Load Survey.

Departure Survey.

Draught Survey.

Which of the given options is IMO's definition of liquefied gas as used in its Gas Codes?

Liquid with vapour pressure exceeding 2.8 bar absolute at a temperature of 73.8 C.

Liquid with vapour pressure exceeding 2.8 bar absolute at a temperature of 37.8 C.

Liquid with vapour pressure exceeding 1.8 bar absolute at a temperature of 38.7 C.

Liquid with vapour pressure exceeding 1.8 bar absolute at a temperature of 87.3 C.

What is dunnage considered as under MARPOL 73/78?

Waste

Cargo residue

Marine Pollutant

Garbage

A number of standard 20 foot containers are to be loaded on the deck of a General Cargo ship by No 3 hatch; what are the main checks to be made ?

Containers weight recorded and secured with chains

Containers stowed with doors forward, customs and security seals checked intact

Containers stowed with doors aft, customs and security seals checked intact and clear access to lashings

Containers stowed with doors forward, customs and security seals checked intact; access to lashings unimportant

On a RoRo vessel, which of these stowage situations produces high friction that does not allow movement of the cargo?

A single tier of dunnage placed between vehicles and steel decks

Steel plates placed between vehicles and steel decks

Vehicles in direct contact with steel decks

Two tiers of dunnage placed between vehicles and steel decks

What is the name by which the regulations which prevent and control pollution from ships are known?

The International Shipping Pollution Laws.

SOLAS

MARPOL

The ISP Code.

What precaution must be taken when discharging crepe rubber?

There should not be bales outside a sling adhering to bales inside it

Derricks must not be used to discharge this cargo

Bales must not be dragged into the hatch square from the wings

Each bale must be discharged independently

What should you ensure prior to battening down hatches for sea passage?

That cargo hold bilges are empty

That cargo clusters have been removed from all cargo spaces

That cargoes have been stowed according to the stowage plan

That hatch ventilators have been closed

Assign men to search men and women to search women unless a device such as a metal detector is used.

FALSE

TRUE

According to regulations cranes and other lifting appliances onboard should, at regular intervals, be examined by ship's personnel and the result recorded in Register of Ship's Lifting Appliances and Cargo Handling Gear. How often should such examinations take place?

Every 5 years.

Annually.

Every 6 months.

Biannually.

Why is grain bundled?

To prevent it from wetting

To prevent bulk grain from shifting

To aid stability

To compact the cargo

Which Security Levels requires the highest security alert?

Security Level 2

Security Level 1

Security Level 3

A diesel engine cylinder head is to be overhauled but the spring compressor for removing the valve collets is found to be damaged and unusable. How should the task be carried out by ship's engineers?

Use a couple of screwdrivers to compress the spring and lever out the collets as this will save time.

Use a ring spanner to press down on the spring guide and pick out the collet halves once they are free.

Delay the work until a new spring compressor is available or fabricate a suitable replacement onboard if the work is urgent.

Using a hammer and a tube with an inner diameter slightly bigger than the outer diameter of the collets repeatedly strike the upper spring carrier until the collets pop out.

Low voltage ships tend to have insulated neutral systems. What is the reason for this?

If the neutral is not insulated then it may short to other conductors.

It is easier to detect faults

In the event of an earth fault vital equipment will not trip

It is more effective than insulating the live conductor

When starting three phase induction motors which of the following starting methods will immediately apply rated voltage to the machine?

Soft starter

Star Delta

Direct on Line

Auto - transformer

Which of the following pump types is not considered to be self priming?

Gear pump.

Screw pump.

Centrifugal pump.

Reciprocating pump.

What is the normal slow down/shutdown temperature for the jacket cooling water outlet from a diesel engine cylinder?

105 - 108° C

75 - 78° C

85 - 88° C

95 - 98° C

Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?

10% extra

50% extra

5% extra

25% extra

This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.