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Heim Online-Tests CES Oil tanker Handling and Stowage Test for seamans about Cargo Handling and Stowage on Oil Tanker (CES v6.0)
Online-Test: Test for seamans about Cargo Handling and Stowage on Oil Tanker (CES v6.0)
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Der Test besteht aus 80 zufälligen Fragen.
Gesamtzahl der Fragen zu diesem Thema: 119
Gesamtzahl der Fragen zu diesem Thema: 119
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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.
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.
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.
“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.
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 %.
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 maximum oxygen content by volume permitted in the cargo tanks throughout the crude oil washing operation is:
10 %.
5 %.
3 %.
8 %.
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
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.
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.
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.
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.
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.
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.
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.
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 examples of Aromatic Hydrocarbons will include:
Benzene, Toluene and Xylene.
Carbon Dioxide and Hydrogen Peroxide.
Propane, Butane and Pentane.
Hydrogen Sulphide and Carbon Monoxide.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
The purpose of the decanting line between two slop tanks, where fitted, is:
To enable most of the recovered oil to be retained in the primary slop tank, while the cleaner part of the water will flow into the secondary slop tank, where it can be re-used as wash-water.
To avoid a build-up of static electricity during water washing, caused by air being drawn in as the primary slop tank empties.
To enable the filling of the secondary slop tank via the primary slop tank.
To enable both the primary and secondary slop tank to be filled without using the main cargo lines.
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.
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 describing the characteristics of oil cargoes or oil/water slops, a “mercaptan” is:
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.
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.
With reference to ship stability, the letters “TPC” stand for:
Tonnes per Centimetre Immersion.
Tonnes per Centimetre.
Tipping Perimeter Centre.
Trim per Centimetre.
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.
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 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.
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.
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 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.
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).
The maximum permitted oxygen content in the inert gas supply when inerting a cargo oil tank prior to gas freeing is:
8 % by volume.
12 % by volume.
5 % by volume.
I don’t know.
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.
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.
With reference to oil cargo calculations, API refers to:
American Petroleum Institute.
Approved Petroleum Inspector.
Average Petroleum Index.
Aggregate per Inch.
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.
On board a crude oil tanker, guidance on the washing system and equipment along with the applicable operating procedures, can be found in:
The Oil Record Book – ship particulars page.
The Operating and Equipment (COW) Manual.
The ODME Operating Manual – manufacturer’s instruction section.
MARPOL – Annex I.
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.
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.
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.
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.
According to SOLAS, the mechanical ventilation system of the cargo pump room shall be capable of making:
I don’t know.
At least 10 air changes per hour.
At least 20 air changes per hour.
At least 6 air changes per hour.
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.
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.
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 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.
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.
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.
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.
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.
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.
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.
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.
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.
What is a VPR (OPA-90)?
Vessel Response Plan.
Vessel Report Plan.
Vessel Response Procurement.
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.
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.
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.
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.
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.
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 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.
After efficient scrubbing of inert flue gas what would be the concentration of sulphur dioxide be:
25 ppm.
100 ppm.
50 ppm.
10 ppm.
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.
As per MARPOL, Oil Record Book Part II, Cargo/Ballast Operations, must be carried and completed on oil tankers of:
150 gross tonnes and above.
I don’t know.
20 gross tonnes and above.
50 gross tonnes and above.
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).
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 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.
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.
On oil tankers, Cargo tanks can be isolated from machinery spaces by:
All the answers are good.
Pump room.
Cofferdams.
Ballast tanks.
The DoS addresses the responsibility for the security of the water around the ship and the verification of increased threat levels.
True.
False.
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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