Головна Онлайн-тести CES Oil tanker Handling and Stowage Test for seamans about Cargo Handling and Stowage on Oil Tanker (CES v6.0)

Онлайн-тестування: Test for seamans about Cargo Handling and Stowage on Oil Tanker (CES v6.0)

Ви можете розпочинати тест

Виберіть режим роботи з тестом:

Навчання

Проходження тесту

Онлайн-тест

Опис

Відгуки

Тест складається із 80 випадкових питань.
Усього питань на цю тему: 119

Питання 1 з 80

A “Pellistor” is:

It is the electrical sensor which detects low pressure in an Inert Gas generating control system.

It is a sensor that can be used in a combustible gas indicators to detect and measure flammable gas concentration as a percentage of its lower flammable limit.

I don’t know.

It is the common term applied to the metal, ceramic or other heat-resisting material which can cool even an intense flame below the temperature required for ignition, as utilised in a flame arrester.

An oil tanker with a defective Oil Discharge Monitoring Equipment may be allowed by a Port State Authority to trade for:

One ballast voyage before proceeding to a repair port.

I don’t know.

The vessel will be detained until ODME is rectified.

Two ballast voyage before proceeding to a repair port.

Oil tankers built and delivered after 6th July 1986 may have wing ballast tanks that extend throughout the cargo tank length. In this case the design feature against pollution in the event of the bottom being breached is that:

Additional level sensors and alarms must be fitted to give early warning of oil outflow.

Steel thickness in the bottom area must be a minimum of 1,36 times that otherwise required by construction regulations to minimise the extent of any breach.

The cargo tank levels must be set so that hydrostatic pressure will stop oil outflow.

The pressure vacuum valves must be capable of complete sealing, and the integral strength of the tank such that a total vacuum is capable of being maintained in the breached compartment, thereby preventing outflow of oil.

Any person who can assume overall charge of the ships crude oil washing operation must have:

They must have at least six months experience on tankers, be knowledgeable of the cleaning procedures and equipment applicable on board the vessel and be able to fully demonstrate understanding of the operation of the ODME equipment.

At least 12 months appropriate experience on oil tankers, have participated in at least two COW programmes and be fully knowledgeable of the contents of the Operations and Equipment Manual.

I don’t know.

They must have at least three months experience on tankers, have participated in at least six washing operations and be aware of the procedures associated with the completion of the Oil Record Book.

One particular group of hazardous goods that is highlighted by the IMDG Code as potentially being the most dangerous for carriage is:

Infectious substances.

Organic peroxides.

I don’t know.

Liquefied gases.

When describing the characteristics of oil cargoes or oil/water slops, a “mercaptan” is:

A device fitted to a cargo pump which automatically alerts the operator once traces of water start to be detected during discharge.

A chemical additive blended with crude oil to inhibit the natural “rotten egg” smell associated with certain grades.

The component of hydrocarbon-based cargoes which is formed from Merolion Carbonized Tannin.

A colourless, odorous gas, with a smell similar to rotting cabbage and which is generated naturally by the degredation of natural organisms, as may be found where water has remained under oil for a long time.

The one particular hazard to be taken care against, when using portable steam driven blowers for ventilating oil cargo tanks is:

That plastic extension tubes should not be used, in case the top collar overheats and melts, causing the tube to drop into the tank.

That prolonged use may cause the core material of the fan to heat up to a point where it may become a source of ignition.

That the steam outlet must point vertically upwards to avoid possibly burning the legs of passing personnel.

That the exhaust does not vent into the cargo tank, in order to prevent possible build-up of static electricity.

What is meant be the term “sour crude”?

Crude oil containing hydrogen sulphide content greater than 0,1 % by volume.

Crude oil containing hydrogen sulphide content greater than 0,3 % by volume.

Crude oil containing hydrogen sulphide content greater than 0,5 % by volume.

I don’t know.

The chemical characteristics of effluent water from an inert gas scrubber and the condensate which collects in the deck mains would be:

Acidic in nature.

Demineralised in nature.

Alkaline in nature.

Neutral in nature.

What is the density of the undiluted vapour that is liberated from crude oil?

1,5 times that of inert gas.

I don’t know.

It doesn’t matter.

2 times that of inert gas.

In context of cargo oil depth and ullage measurements, the abbreviation UTI stands for:

Ullage Topping Instrument.

Uniform Tank Indicator.

Uncorrected Tank Innage.

Ullage Temperature Interface.

Why is it important to have good relationship on-board a vessel?

It encourages crew to extend their contract.

It will prevent accidents from happening.

It leads to better work performance and positive atmosphere among the crew.

Crew comes to know each others problems.

When in-service testing a hose used for cargo transfer on an oil tanker (and for which the elongation of the hose assembly when new was greater than 2,5 %), the maximum permitted elongation before the hose must be withdrawn from service should be:

Not more than 1,5 times the temporary elongation measured at the previous in-service test, as documented in the ship’s annual test record.

Not more than 1,25 times the temporary elongation measured when the hose assembly was last tested, as documented in the appropriate certificate.

Not more than 1,5 times the temporary elongation measured when the hose assembly was last tested, as documented in the appropriate certificate.

Not more than 1,5 times the temporary elongation measured when the hose assembly was new, as documented in the manufacturer’s certificate.

During an audit, adherence to the company cargo handling procedures can best be demonstrated:

By requesting that an audit takes place during cargo operations.

By providing a summary of out-turn figures for the auditor.

I don’t know.

By being able to provide comprehensive and verifiable documentary records of cargo operations.

Substances, materials and articles shall be stowed as indicated in the Dangerous Goods List of the IMDG Code, in accordance with a series of stowage categories, which are designated as:

5 categories, labelled A-E.

Three categories, numbered I, II and III.

10 categories, lattered A-K (excluding I).

10 categories, numbered 1-10.

Besides danger of vapour inhalation by crewmembers, if Hydrogen Sulphide is present in high concentrations in crude oil, it can also cause:

Polymerisation.

Acid build-up.

Settling and layering.

Corrosion.

As per IMDG Code, the term “separated from” can be defined as:

I don’t know.

Either in a vertical or horizontal separation: if the intervening decks are not resistant to fire and liquid, then only in a longitudinal separation is acceptable. For “on deck” stowage, this means a distance of at least 12 metres. This distance also applies to one package stowed “on deck” and another in an upper compartment.

In different compartments or holds when stowed “under deck”. Provided an intervening deck is resistant to fire and liquid, a vertical separation may be accepted as equivalent. For “on deck” stowage, this segregation means a distance of at least 6 metres.

With an intervening compartment, being both a vertical and horizontal separation. Provided an intervening deck is resistant to liquid and fire, a vertical separation of 6 metres is acceptable. For “on deck” stowage, this segregation means a distance of at least 12 metres irrespective of compartment divisions.

Within the Oil Discharge Monitoring and Control System, an “overboard discharge control” is defined as:

A device which automatically initiates the sequence to stop the overboard discharge of the effluent in alarm conditions and prevents the discharge throughout the period the alarm prevails.

A system which monitors the discharge into the sea of oily ballast or other oil-contaminated water from the cargo tank areas.

A facility which prevents the initiation of the opening of the discharge valve or the operation of other equivalent arrangements before the monitoring system is fully operational.

A system which receives automatic signals of oil content, flow rate, ship’s speed, ship’s position, date and time.

During Crude Oil Washing, those areas of the cargo tanks which are not directly struck by the oil jet from the tank washing machines are referred to as:

Hidden areas.

Protected areas.

Deflected areas.

Shadow areas.

Prior carrying out a Crude Oil Washing operation, the tank from which the crude is to be used for washing is usually partially discharged. This is done so as to:

Ensure that all water settled in the tank is removed prior washing, so as to ensure that the fresh cargo can be loaded on top without fear of contamination.

Ensure that only the required quantity of oil are kept in the tank, so as to reduce the amount of slops retained on the ship.

Ensure that any settled water is removed from the tank and only “dry” crude is used for washing so as to avoid electrostatic hazards during washing.

As per international regulations, the minimum inert gas pressure required to be maintained in slop tanks if slops are retained on board is:

10 mm/water gauge.

750 mm/water gauge.

1 000 mm/water gauge.

100 mm/water gauge.

How much liferaft capacity should be provided on a conventional cargo ship of more than 85 metres in length?

25 % of the complement on each side of the ship.

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.

75 % of the complement on each side of the ship.

50 % of the complement on each side of the ship.

The examples of Aromatic Hydrocarbons will include:

Benzene, Toluene and Xylene.

Carbon Dioxide and Hydrogen Peroxide.

Propane, Butane and Pentane.

Hydrogen Sulphide and Carbon Monoxide.

The compensation payment by the charterer that is due when a vessel is unable to load/discharge her cargo within the allowed and contracted time is referred to as:

Contractual penalty discount.

Discretion.

Demurrage.

Deferment.

The purpose of expansion couplings to be fitted on the longitudinal pipelines of oil tankers is:

To allow the pipelines to follow the ships flexing movement when pitching.

To allow the pipeline to expand when loading a hot cargo through the pipeline.

To prevent the pipeline from cracking when the ship suffers from Racking stresses.

I don’t know.

You are on a sailing vessel, underway in open water. This vessel is sighted on the starboard bow, on a steady bearing and the distance is closing. By the International Regulations for the Preventing Collisions at Sea, what action will you follow?

Risk of collision is deemed to exist and, as the other vessel is on a steady bearing on my starboard side, I will maintain my course and speed.

This vessel is clearly a power-driven vessel and I anticipate that the bearing will therefore close and she will pass ahead at a safe distance.

Risk of collision is deemed to exist and, as the other vessel is on a steady bearing on my starboard side, I am required to keep out of the way. I will make a broad alteration of course to starboard.

By Rule 18, a power-driven vessel underway shall keep out of the way of a sailing vessel. I will maintain my course and speed, but will continue to monitor situation to ensure the other vessel takes avoiding action.

The reporting of incidents involving harmful substances and/or marine pollutants is regulated under:

Annex II to SOLAS 1974.

Protocol I of MARPOL.

The UN Convention on the Reporting of Accidents and Incidents which Present a Hazard to the Marine Environment 2004.

Appendix B of the Supplement to the IMDG Code

What is the purpose of girders in the tank?

They transfer all the cargo forces acting on the plating.

They support the stiffeners and also take up some of the sea forces.

They transfer all sea forces acting on plating.

They support the stiffeners.

When describing the characteristics of oil cargoes or oil/water slops, a “mercaptan” is:

I don’t know.

A chemical additive blended with crude oil to inhibit the natural “rotten egg” smell associated with certain grades.

The component of hydrocarbon-based cargoes which is formed from Merolion Carbonized Tannin.

Which of the following type of crude oil requires special consideration in terms of carriage and cleaning?

Reconstituted Crude.

Medium Crude.

Paraffinic Crude.

Sweet Crude.

As per the IMDG Code, “Proper Shipping Name” is defined as:

The correct chemical name of a potentially hazardous material, as identified from the Chemical Cargo List.

The name under which a dangerous material, substance or article is described for export purposes in the country of loading.

The name assigned by the manufacturer to a material, substance or article for the purposes of shipment.

The name to be used in any documentation relating to the transportation of the dangerous substance, material or article, such as on forms, labels and placards.

What is to be considered when deciding the position of the accommodation on an oil tanker?

I don’t know.

A single failure of deck or bulkhead shall not allow fumes into the accommodation spaces.

They must be at the after end of the vessel.

There are no restrictions to the position of the accommodation.

When documenting Crude Oil Washing operations in the Oil Record Book, which of the following must be included in the sequence of entries?

The ullage in the tank at the commencement of washing.

The average oil cargo temperature during the washing operation.

The ship’s speed during the washing operation.

The method of establishing that the cargo tanks were dry.

Fluid driven eductors operate on Bernoulli’s principle, which states that:

The discharge rate is inversely proportional to the pressure applied in the drive inlet.

The increase in pressure at the eductor inlet is inversely proportional to the decrease in pressure as measured at the discharge orifice.

The speed of a moving fluid increases as the pressure in the fluid decreases.

The volume of a fluid increases as the pressure in it decreases.

If W = Displacement, L = length, B = Breadth, D = depth of vessel, Cb = Block Coefficient, Cw = Coefficient of Waterplane, RD = Relative Density, then:

W = L · B · D · Cb / RD.

W = L · B · D · Cb.

I don’t know.

W = L · B · d · Cw.

The purpose of the demister unit within the Inert Gas System is:

To remove water from the IGS stream.

To remove sulphur oxides.

To cool the inert gas.

To prevent overheating.

Oil tankers of 70 000 tons and above, delivered after 31 December 1979 shall be:

No requirement regarding number of slop tanks.

Shall be provided with at least 2 slop tanks.

I don’t know.

Shall be provided with slop tank.

The scantling draft of an oil tanker fitted with segregated ballast tanks is:

The minimum draught amidships when in ballast condition.

The maximum draught determined by the Loadline Rules.

The draught for which the structural strength of the ship has been designed.

I don’t know.

As per IMDG Code, the main criteria for drawing up classes for safe handling of hazardous substancesis on the basis of:

I don’t know.

Selective laboratory tests commissioned by the Committee.

Chronological order in which they have been assessed.

The type of hazard they present.

The recommended guideline for avoiding the risk of electrostatic potential in a mist produced by using oil and water during Crude Oil Washing operations is that:

Crude Oil Washing, where the oil source is stored in a slop tank or other tank that has previously contained slops, should be avoided.

I don’t know.

Before washing begins, any tank that is to be used as a source of oil for Crude Oil Washing should be partly discharged to remove any water that has settled out during the voyage. The discharge of a layer of at least 1 metre is necessary for this purpose.

If a slop tank is to be used to supply oil to drive a Crude Oil Washing operation in a cargo tank, then that slop tank must not have contained slops with a water content of more than 2 %.

On a traditional crude oil carrier, it is possible to arrange the valves in the bottom of a pumproom so that cargo flows from one bottom line to another. When more than one grade of cargo is carried, what is the operational safeguard requirement regarding these valves?

There is no so special requirement.

That two valves must be closed on each line or a “spacer” removed to ensure no direct connection between tanks.

That one valve segregation is maintained at all times.

That there is two valve segregation.

After the last entry being made, the retention period of an oil record book on board must be:

Not less than 5 years after the date of the last entry.

I don’t know.

Not less than 3 years after the date of the last entry.

1 year.

The longitudinal bending moments caused by cargo distribution on an oil tanker need to be taken into consideration:

Only during loading and discharging cargo.

Only when on ballast passage in heavy seas and when the vessel is pitching.

Only when on loaded passage in heavy seas and when the vessel is pitching.

During loading, discharging and on loaded passage.

Crude Oils required by MARPOL to be specifically listed in a tanker’s Crude Oil Washing manual as unsuitable for COW are:

Those with highbenzene content.

Those with high pour point of viscosity.

Those with high basic sediment and water content.

I don’t know.

“Door to door” shipment is covered under:

A Multi-Phase Bill of Lading.

A Through Bill of Lading.

A Destination Bill of Lading.

An Ocean Bill of Lading.

Depending on the API, an error measurement of 0,1 degree Fahrenheit in a tank containing 300 000 barrels of oil will result in which of the following volumes?

50 barrels.

150 barrels.

300 barrels.

25 barrels.

At which of the following concentrations of Hydrogen Sulphide might a person experience dizziness, fatigue and memory loss?

40 ppm.

20 ppm.

10 ppm.

I don’t know.

When commencing the cargo transfer at the terminal, the decision to commence the transfer is made by:

The mutual agreement of those in charge of cargo operation, both on board and ashore.

The person in charge of cargo operation at the terminal.

The person in charge of the chartering and operation of the vessel.

The person in charge of cargo operation on the vessel.

As per the IMDG Code, “Marine Pollutant” is defined as:

A substance which is subject to the provisions of Chapter V of SOLAS 1974 as amended.

A substance which is subject to the provisions of Annex III of MARPOL.

I don’t know.

Any substance which is deemed hazardous to the marine environment.

Crude oils may be considered to consist:

A natural mixture of carbon and sulphur isomers.

A refined blend of hydrocarbon compounds and sulphur extracts.

A mixture of carbon extracts and naturally occurring wax.

A natural mixture of simple and complex hydrocarbon compounds.

As per the US Code of Federal Regulations, the current Oil Transfer Procedures for a vessel carrying out discharge in US ports must be:

That the procedures be legibly printed in a language or languages easily understood by personnel engaged in the transfer operation and permanently posted or available at a place where crew members can see and use them.

That the Master of the vessel engaged in a transfer shall, before commencing any transfer operation, ensure that all crew members involved in that operation shall be familiar with the applicable operating and emergency procedures and be capable of communicating in a common language with terminal operators.

That the procedures be available in hard-copy or electronic format to the Supervising Officer in a language with which he is familiar.

That the procedures be printed in the English and Spanish languages and permanently posted in the wheelhouse of the vessel.

When an inhibitor is added to an oil cargo, the items mentioned on the accompanying certificate include:

Inhibitor name; amount added; date added; period of efficiency; precautions if voyage length exceeds that period; eventual temperature limitation.

Inhibitor class; amount added; date of expiry; minimum period of optimum efficiency; precautions to be taken when added; minimum temperature requirement.

Inhibitor name; percentage applied; date of expiry; precautions to be taken on voyage and interval of application; maximum temperature at which continuously effective.

Inhibitor class; percentage blended; date added; maximum period of efficiency and applicable temperature limits; maximum storage period on board; contact number of manufacturer.

Which of the following is a definition of a petroleum product which is “non-flammble”?

Petroleum having a flash point of 80 °C or above, as determined by the closed cup method of test.

Petroleum having a flash point of 60 °C or above, as determined by the closed cup method of test.

I don’t know.

Petroleum having a flash point of 100 °C or above, as determined by the closed cup method of test.

DG placards shall be located on a freight container:

One on each end and one on each side.

One on each side (only).

One on each end (only).

One of the back end and one on one of the sides (only).

After passing through the scrubbing tower of an inert gas system, the approximate level of carbon dioxide in the inert flue gas should be:

3 %.

21 %.

1 %.

13 %.

What is the relationship between absolute pressure and gauge pressure?

Absolute pressure = gauge pressure.

Absolute pressure = gauge pressure – atmospheric pressure.

I don’t know.

Absolute pressure = gauge pressure + barometric pressure.

With reference to oil tanker equipment, the abbreviation VECS stands for:

Vapour Ejection Control System.

Vapour Emission Calibration System.

Vapour Emission Control System.

Vapour Emission Control Standard.

As per SOLAS the Inert Gas System of an oil tanker must deliver the inert gas with a maximum level of oxygen of:

Not less than 8 % by volume.

Maximum 3 % by volume.

Not more than 5 % by volume.

Between 8 % to 11 % by volume.

After efficient scrubbing of inert flue gas what would be the concentration of sulphur dioxide be:

25 ppm.

100 ppm.

50 ppm.

10 ppm.

What is the ideal maximum viscosity at which crude oil cargoes are best discharged for maximum efficiency of centrifugal pumps:

450 cSt (450 mm2/s).

I don’t know.

250 cSt (250 mm2/s).

45 cSt (45 mm2/s).

As per MARPOL, the formula for calculating the minimum draft amidships for crude tankers in ballast condition is:

2,0 + 0,02 L.

I don’t know.

2,0 + 0,015 L.

2,0 + 0,002 L.

During tank washing, besides maintaining the tank oxygen content below 8 % by volume, it should also be ensured:

That the tank is maintained at atmospheric pressure level.

That a negative pressure is maintained in the tank.

That a positive pressure is maintained in the tank.

That a minimum of 2,4 bar inert gas inlet pressure is maintained in the tank.

If all indications are that a cargo has been received without damages, irregularities or short shipment and the phrase “apparent good order and condition” is entered on the Bill of Lading, then this Bill is this said to be:

A Due Title Bill of Lading.

An endorsed Bill of Lading.

A Bill of Lading completed for shipment.

A clean Bill of Lading.

A VLCC is to anchor in a depth of 80 meters in open water with moderate swell running. How many shackles of anchor chain should be used to ensure safely anchored?

8 shackles.

11 shackles.

6 shackles.

3 shackles.

The ODME printed record for ballast water discharge overboard from the cargo piping system on oil tankers operations must be retained on board for a minimum period:

Of 3 years.

I don’t know.

Of 2 years.

Of 1 year.

As per the IMDG Code, an “article” is referred to as:

A device that contains a dangerous substance or mixture of substances.

A device that is responsible for initiating a dangerous reaction.

A form that contains important information about a hazardous substance.

Something that is packed within a freight container.

Ship’s cargo pump room alarm must be automatically activated when levels of hydrocarbon gas concentration are:

No higher than 10 % of LEL.

No higher than 5 % of LEL.

No higher than 15 % of LEL.

I don’t know.

The approximate API gravity of Arabian Light Crude is:

30°.

40°.

27°.

33°.

Your vessel is in an area of restricted visibility. You hear this sound signal. What does it mean?

That there is a vessel in distress nearby.

That there is a vessel engaged in underwater operations in the vicinity. She has divers down.

That there is a vessel at anchor in the vicinity.

That there is a vessel aground in the vicinity.

If for some reason a vessel does not comply with a Classification Society’s requirements, what can a surveyor issue to the vessel enabling it to sail to the next port or for a period of time?

A Notification of Deficiency.

A revised Class Notation.

A Condition of Class.

A notification of Detention.

The maximum oxygen content by volume permitted in the cargo tanks throughout the crude oil washing operation is:

10 %.

5 %.

3 %.

8 %.

If the shipper wishes to ensure that a vessel or her operators will not be held responsible for any damage that may arise from the carrier issuing a clean Bill of Lading, even though the Mate’s receipt is marked as “unclean”, such a document is called the:

An addendum to the Bill of Lading.

A Letter of Credit.

I don’t know.

A Letter of Indemnity.

The term “consignee” is referred to as:

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 entitled to take delivery of a consignment.

Any person or company responsible for the operation of a vessel which carries a consignment as freight.

According to ISGOTT, in which of the following situations, when measuring vapour space oxygen content of a cargo tank, can a electrochemical sensors in gas measuring instruments become damaged or poisoned?

When the sample containing hydrocarbon/inert gas has a hydrogen sulphide content greater than 2 %.

When the sample containing hydrocarbon/inert gas has a hydrogen sulphide content greater than 1 %.

When the sample containing hydrocarbon/inert gas has a hydrogen sulphide content greater than 3 %.

I don’t know.

How many square metres does the IAMSAR Volume 3 manual suggest may be calmed by releasing 200 litres of lubricating oil slowly through a rubber hose with the outlet maintained just above the surface while the ship proceeds at slow speed?

Approx 500 square metres.

Approx 5 000 square metres.

Approx 50 square metres.

Approx 50 000 square metres.

What is the purpose of girders in the tank?

They support the stiffeners.

They transfer all sea forces acting on the plating.

They transfer all the cargo forces acting on the plating.

They support the stiffeners and also take up some of the sea forces.

For security purposes, the IMDG Code should be read in conjunction with the:

Chapter XI-2 of SOLAS and Part A of the ISPS Code.

Part B of the ISPS Code and Chapter II of the Maritime Transport and Offshore Facilities Act.

I don’t know.

IMO NVIC 24 and 46 CFR 2.05.

The purpose of permanent continuous coamings fitted from side to side across the decks near the accommodation of an oil tanker is:

To keep deck spills away from the accommodation and service areas.

To reduce the effects of racking stresses.

To push the sea water shipped onto the deck over the sides of the ship.

To increase the strength of the deck structure.

What is a VPR (OPA-90)?

Vessel Response Plan.

Vessel Report Plan.

Vessel Response Procurement.

I don’t know.

Where would you find the document relating to the “Condition of Freeboard Assignment” onboard?

With the Safety Construction Certificate.

With the Classification Records.

With the Loadline Certificate.

With the Structural Survey File.

The «Cargo Handling and Stowage, Management, Oil Tanker» subject provides both theoretical and practical knowledge on safely working with electrical equipment. Mastery of this material is a key indicator of an employee’s competence in their role aboard a vessel. Cargo handling and stowage on an oil tanker involve the processes of loading, unloading, and storing liquid cargo, such as crude oil or petroleum products. These operations require meticulous planning, strict adherence to safety protocols, and compliance with industry regulations to ensure the safe and efficient transportation of liquid cargo.

Version: 4.1, 5.0, 5.1, 6.0.0, 6.0.8, 6.0.10.
Test type: STCW.
Department: Cargo Handling and Stowage.
Level: Management.
Vessel type: Oil Tanker.

Відгуки можуть залишати лише моряки. Щоб залишити відгук, зайдіть на сайт під обліковим записом моряка.

Залишіть перший відгук про цей онлайн-тест!