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

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

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Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 119

Вопрос 1 из 80

The purpose of the “mud box” fitted on a tanker is to:

Collect ships waste and water mud when ballasting and de-ballasting.

Catch the mud from the anchors and cables and deposit these at the windlass.

Restrict any particles and solids entering the pipeline system.

Catch spills when connecting the discharge or loading hose.

To correctly report an oil spill in US waters:

The master of the vessel responsible for the spill must advise the Environmental Protection Agency National Incident Reporting Center (or the appropriate regional office) within 2 hours of the incident being reported to that person.

The person in charge must first report the spill to the National Response Center or, if not practicable, to the Environmental Protection Agency regional office or local US Coast Guard Marine Safety Office. This must be done immediately that person has knowledge of the spill.

The person responsible for the spill must report preliminary details to the appropriate State Police within 30 minutes of the accidental discharge taking place.

I don’t know.

The Reid Vapour Pressure (RVP) test is commonly used for measuring:

The absolute vapour pressure of the liquid at 37,8 °C.

The absolute vapour pressure of the liquid at 15,6 °C.

The absolute vapour pressure of the liquid at 38,7 °C.

The absolute vapour pressure of the liquid at 59 °C.

With reference to the exposure of “vapours” from oil cargoes, “Short Term Exposure Limit” value is determined by:

The airborne concentration of a toxic substance averaged over any 10 minute period, usually expressed in ppm.

The airborne concentration of a toxic substance averaged over any 15 minute period, usually expressed in ppm.

The airborne concentration of a toxic substance averaged over any 25 minute period, usually expressed in ppm.

The airborne concentration of a toxic substance averaged over any 30 minute period, usually expressed in ppm.

With reference to ship stability, the letters “TPC” stand for:

Tonnes per Centimetre Immersion.

Tonnes per Centimetre.

Tipping Perimeter Centre.

Trim per Centimetre.

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.

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.

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.

When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure so as to:

Comply with the requirement of MARPOL Annex VI.

Avoid over-capacity in the IG generator.

Avoid locking the cargo pump impeller.

Minimise blowback.

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.

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.

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.

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.

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.

For a vessel proceeding enroute, located more than 50 nm from nearest land outside a special area and having in operation its ODME, the maximum instantaneous rate of an oily water mixture is:

30 litres per nautical mile.

300 litres per nautical mile.

60 litres per nautical mile.

I don’t know.

Which of the following best describes what the wax content of crude oil is?

The percentage of wax, expressed as a percentage, remaining in an oil product after distillation.

The percentage, by weight, of paraffinic wax found in a representative sample of the crude oil.

I don’t know.

The observed volume percentage of waxy deposit found in a cargo tank after discharge in relation to the total volume of cargo previously carried.

What are the three volumes of the IAMSAR Manual?

A – Command and Control; B – Communications; C – Rescue Procedures.

I – Planning and Preparation; II – Rescue Control; III – Reference.

I – Organization; II – Communications; III – Rescue Procedures.

I – Organization and Management; II – Mission Co-ordination; III – Mobile Facilities.

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.

What statutory certificate is carried onboard to indicate that a tanker is in compliance with Annex 1 of the MARPOL convention?

Oil Record Book.

The International Oil Pollution Prevention (IOPP) Certificate.

I don’t know.

International Safety Guide for Oil Tankers and Terminals (ISGOTT).

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.

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.

Segregated Ballast Tanks on an oil tanker may best be defined as:

Cargo tanks which may be used for the carriage of ballast.

Cargo tanks which each have their own individual pumps, are fitted with independent piping systems and are served by unconnected ventilation arrangements.

Tanks which are completely separate from cargo or fuel oil systems, being permanently allocated to the carriage of ballast and fitted with their own pumps and associated piping.

Cargo tanks which may be used for ballast, where the lines are not connected to the Oil Discharge Monitoring Equipment.

“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.

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.

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.

When internally transferring any oil cargo within the vessel, the correct procedure would be to:

Obtain permission from the receivers and retain all e-mail correspondence for the attention of the cargo surveyors.

Transfer no more than 5 % of the total cargo volume at any one time.

Obtain permission from the charterers and document all operations fully in the Oil Record Book.

It is not necessary to obtain any permissions, provided the Captain makes an entry in the Deck Log Book, documenting his reasons for moving cargo.

On oil tankers, Cargo tanks can be isolated from machinery spaces by:

All the answers are good.

Pump room.

Cofferdams.

Ballast tanks.

When discharging dirty ballast from an oil tanker at a high flow rate with main cargo pumps, the instantaneous rate of discharge of oil is calculated by formula:

Instantaneous rate of discharge (l/nm) = oil content (ppm) · flow rate (m3/h) / speed (knots) · 1 000.

Instantaneous rate of discharge (l/nm) = oil content (ppm) · 1 000 / flow rate (l/h) · speed (knots).

Instantaneous rate of discharge (ml/nm) = oil content (ml/nm) · flow rate (l/m) / speed (knots) · 100.

I don’t know.

Oil tankers are subject to cyclical bending moments throughout their life as a result classification society rules require a specific minimum reduction in steel thickness to be maintained within “x” length amidships, where “x” is:

0,4 length.

I don’t know.

0,2 length.

0,3 length.

The DoS addresses the responsibility for the security of the water around the ship and the verification of increased threat levels.

True.

False.

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.

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.

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.

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.

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.

Special Areas as per MARPOL are:

Specific geographical sea areas in which special mandatory measures for the prevention of sea pollution by oil are required.

Specific geographical sea areas, designated as Marine Conservation Areas by the United Nations, in which any discharge from the cargo area of an oil tanker is strictly controlled.

All sea areas within 50 miles from the nearest land, where that coastal state is a signatory to MARPOL.

Limited ocean and sea areas, listed under the OPA-90 Act, inside which the discharge of oil is prohibited and the penalty for doing so is an unlimited fine and jail sentence.

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.

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.

Under the ISM Code the provision of individual control measures for specific work-related tasks exist in the:

Definition of supervisory responsibilities.

Documentation of individual job descriptions.

Permit to Work system.

Due diligence clause.

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.

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.

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.

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.

What is this?

The United Nations stamp used for endorsing international shipping certificates.

The United Nations Packaging symbol used for Dangerous Goods.

The identification stamp placed in the passport of a stowaway by an Immigration Officer to indicate that his or her nationality is “unknown”.

The “Unitary Nomenclature” symbol placed alongside the name of a dangerous cargo in shipping documents to indicate that it appears on the list of approved international shipping names.

The approximate API gravity of Arabian Light Crude is:

30°.

40°.

27°.

33°.

According to 33 CFR 156.170, for oil tankers trading in US waters, the minimum requirement for testing of cargo transfer hoses and associated piping system are:

That no leakage occurs under dynamic fluid pressure of less than 1,5 times the maximum allowable working pressure.

That no leakage occurs at the nominal anticipated working pressure.

That no leakage occurs under static liquid pressure of at least 1,5 times the maximum allowable working pressure.

I don’t know.

What is a VPR (OPA-90)?

Vessel Response Plan.

Vessel Report Plan.

Vessel Response Procurement.

I don’t know.

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

Something that is packed within a freight container.

A device that is responsible for initial dangerous reaction.

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

A form that contains important information about a hazardous substance.

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.

The approximate Upper Flammable Limit of Crude Oil when measured as a percentage volume in air is:

12,6 %.

15 %.

2,2 %.

9,5 %.

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.

When conducting a risk assessment for a shipboard work activity, the two elements to be considered are:

The chance of an incident re-occuring and the potential effects of an loss.

The available manpower and their experience in this type of work.

The potential severity of harm and the likelihood that harm will occur.

I don’t know.

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 inert gas system shall be capable of delivering inert gas to the cargo tanks at the rate of:

No such requirement.

At least 125 % of the maximum discharge capacity.

At least 135% of the maximum discharge capacity.

At least 150 % of the maximum rate of discharge capacity.

As per MARPOL, the contents of lines and pumps on a crude oil tanker at completion of discharge must be:

Drained and then pumped either ashore, or to a cargo tank or slop tank on board.

That they be drained directly (and only) to shore.

That they be cleared to shore by the use of compressed air.

That agreement be reached at the pre-cargo conference as to whether the ship or shore facility are to receive the “unpumpable product remaining in lines and pumps” and the appropriate side then clear the lines to the other by any appropriate means.

With reference to oil cargo calculations, API refers to:

American Petroleum Institute.

Approved Petroleum Inspector.

Average Petroleum Index.

Aggregate per Inch.

Prior to discharging cargo from an oil tanker, “line displacement” is usually conducted to:

To balance a rigid cargo arm.

I don’t know.

The calibration of the ship’s flow meter.

Verify the pipeline contents with previous grade have been replaced.

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.

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.

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.

Every oil tanker of 5 000 tonnes deadweight and above delivered on or after 1 February 2002 shall comply with intact stability whereby it must have a minimum GM (metacentric height) in port of:

Not less than 0,10 m.

Not less than 0,25 m.

I don’t know.

Not less than 0,15 m.

A tanker in ballast, having recently left the discharge port is involved in a collision. The two vessels are still interlocked after the collision and a survey of the ships gives all crew members are safe and the damage is focussed to the vicinity of the impact. What should be the greatest concern at this time?

When the two vessels separate one (or both) of the vessels will have insufficient stability to remain afloat.

The vessels moving together will create even greater damage to their structures.

The possibility of pollution.

The ships moving together in the swell/seaway will cause a spark and consequently an explosion.

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.

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.

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 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.

With reference to oil cargo characteristics, “cloud point” is:

I don’t know.

The temperature at which an oil product begins to emit vapours which can be observed in a spectroscope due to the volume of solid particles extracted during evaporation.

The depth within a cargo above which no waxy solids are entrained.

The temperature at which a liquid hydrocarbon begins to congeal and take on a cloudy appearance, due to the bonding of constituent paraffin compounds.

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.

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.

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.

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.

Master of every ship must provide:

Facilities to conduct training whenever required by the training officer.

A link between the shipboard training officer and the company training officer ashore.

The training during crews working hours only.

Proper rest to the crew after each training programme.

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.

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.

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.

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

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 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:

Demurrage.

Contractual penalty discount.

Deferment.

Discretion.

When tank cleaning hoses are tested for electrical continuity, they must display a reading of:

Not greater than 6 ohms per metre length.

I don’t know.

At least 8 ohms per metre length.

Not more than 10 ohms per metre length.

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.

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