Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 119
The approximate API gravity of Arabian Light Crude is:
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.
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.
Any substance which is deemed hazardous to the marine environment.
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.
The observed volume percentage of waxy deposit found in a cargo tank after discharge in relation to the total volume of cargo previously carried.
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.
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.
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.
In context of cargo oil depth and ullage measurements, the abbreviation UTI stands for:
Ullage Topping Instrument.
Ullage Temperature Interface.
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.
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.
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.
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.
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.
Not less than 3 years after the date of the last entry.
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.
The chemical characteristics of effluent water from an inert gas scrubber and the condensate which collects in the deck mains would be:
As per international regulations, the minimum inert gas pressure required to be maintained in slop tanks if slops are retained on board is:
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.
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?
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 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.
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.
What is the ideal maximum viscosity at which crude oil cargoes are best discharged for maximum efficiency of centrifugal pumps:
DG placards shall be located on a freight container:
One on each end and one on each side.
One of the back end and one on one of the sides (only).
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.
The DoS addresses the responsibility for the security of the water around the ship and the verification of increased threat levels.
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.
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.
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.
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.
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.
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.
The approximate Upper Flammable Limit of Crude Oil when measured as a percentage volume in air is:
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.
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.
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.
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.
What is to be considered when deciding the position of the accommodation on an oil tanker?
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.
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 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.
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 notification of Detention.
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 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.
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 %.
Prior to discharging cargo from an oil tanker, “line displacement” is usually conducted to:
To balance a rigid cargo arm.
The calibration of the ship’s flow meter.
Verify the pipeline contents with previous grade have been replaced.
With reference to oil cargo characteristics, “cloud point” is:
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.
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.
On oil tankers, Cargo tanks can be isolated from machinery spaces by:
All the answers are good.
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.
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.
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:
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.
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.
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.
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 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.
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 1,5 times the temporary elongation measured when the hose assembly was new, as documented in the manufacturer’s certificate.
Not more than 1,25 times the temporary elongation measured when the hose assembly was last tested, as documented in the appropriate certificate.
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.
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.
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 MARPOL, the formula for calculating the minimum draft amidships for crude tankers in ballast condition is:
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.
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:
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.
What is a VPR (OPA-90)?
Vessel Response Procurement.
The maximum permitted oxygen content in the inert gas supply when inerting a cargo oil tank prior to gas freeing is:
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.
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.
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.
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.
IMO NVIC 24 and 46 CFR 2.05.
“Door to door” shipment is covered under:
A Multi-Phase Bill of Lading.
A Through Bill of Lading.
A Destination Bill of Lading.
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.
With reference to ship stability, the letters “TPC” stand for:
Tonnes per Centimetre Immersion.
Tipping Perimeter Centre.
What is the relationship between absolute pressure and gauge pressure?
Absolute pressure = gauge pressure.
Absolute pressure = gauge pressure – atmospheric pressure.
Absolute pressure = gauge pressure + barometric pressure.
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.
What is the density of the undiluted vapour that is liberated from crude oil?
1,5 times that of inert gas.
2 times that of inert gas.
Besides danger of vapour inhalation by crewmembers, if Hydrogen Sulphide is present in high concentrations in crude oil, it can also cause:
When tank cleaning hoses are tested for electrical continuity, they must display a reading of:
Not greater than 6 ohms per metre length.
At least 8 ohms per metre length.
Not more than 10 ohms per metre length.
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:
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.
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.
The inert gas system shall be capable of delivering inert gas to the cargo tanks at the rate of:
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.
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.