MODULE 2K: Carriage of Dangerous Chemicals in Bulk

SCOPE

The participant who has completed the module will be able to understand:

ship arrangement and ship survival capacity;
cargo containment and material of construction;
cargo temperature control and cargo transfer;
cargo tank vent systems and environmental control;
personnel protection; operational requirements; and
list of chemicals the ship may carry.

EVALUATION CRITERIA AND PASS REQUIREMENTS

The assessment methods will be to choose the best answer from a selection of alternatives.

In the method of objective evaluation, only be accepted one correct answer is valid, and never more than one selection within the same question since they will be automatically considered incorrect. The participants approve the course with a score equal to or greater than 70% of the total value of the assessment. All evaluations will be based on a Total Score of 100.

PO02-TI25 IMDG Code certification (Ver. 01, 07-2021)

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Exam Questions

1. The purpose of the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code), amended by Resolution MEPC.225(64), is to provide an international standard for the safe carriage, in bulk by sea, of dangerous chemicals and noxious liquid substances. The Code prescribes the design and construction standards of ships, regardless of tonnage, involved in such carriage and the equipment they shall carry to minimize the risk to the ship, its crew and the environment, having regard to the nature of the products involved.

True

False

2. The IBC Code applies to ships regardless of size, including those of less than 500 gross tonnage, engaged in the carriage of bulk cargoes of dangerous chemicals or noxious liquid substances (NLS), other than petroleum or similar flammable products as follows:

Products having significant fire hazards in excess of those of petroleum products and similar flammable products;

Products having significant hazards in addition to or other than flammability.

All of the above

3. The structure, equipment, fittings, arrangements and material (other than items in respect of which a Cargo Ship Safety Construction Certificate, Cargo Ship Safety Equipment Certificate and Cargo Ship Safety Radio Certificate are issued) of a chemical tanker shall be subjected to the following surveys:

An initial survey before the ships is put in service or before the International Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk is issued for the first time, which shall include a complete examination of its structure, equipment, fittings, arrangements and material in so far as the ship is covered by the IBC Code. This survey shall be such as to ensure that the structure, equipment, fittings, arrangements and material fully comply with the applicable provisions of the IBC Code.

A renewal survey at intervals specified by the Administration, but not exceeding 5 years. The renewal survey shall be such as to ensure that the structure, equipment, fittings, arrangements and material fully comply with the applicable provisions of the IBC Code

An intermediate survey within 3 months before or after the second anniversary date or within 3 months before or after the third anniversary date of the Certificate, which shall take the place of one of the annual surveys. The intermediate survey shall be such as to ensure that the safety equipment, and other equipment, and associate pump and piping systems fully comply with the applicable provisions of the IBC Code and are in good working order. Such intermediate surveys shall be endorsed on the Certificate issued.

An annual survey within 3 months before or after each anniversary date of the Certificate, including a general inspection of the structure, equipment, fittings, arrangements and material to ensure that they have been maintained and that they remain satisfactory for the service for which the ship is intended. Such annual surveys shall be endorsed on the Certificate issued

All of the above

4. Ships subject to the IBC Code shall be designed to one of the following standards:

Type 1 ship is a chemical tanker intended to transport chapter 17 products with very severe environmental and safety hazards which require maximum preventive measures to preclude an escape of such cargo.

Type 2 ship is a chemical tanker intended to transport chapter 17 products with appreciably severe environmental and safety hazards which require significant preventive measures to preclude an escape of such cargo.

Type 3 ship is a chemical tanker intended to transport chapter 17 products with sufficiently severe environmental and safety hazards which require a moderate degree of containment to increase survival capability in a damaged condition

All of the above are correct answers

5. All ships, subject to the IBC Code, shall be fitted with a stability instrument, capable of verifying compliance with intact and damage stability requirements, approved by the Administration having regard to the performance standards recommended by the IMO (MSC.1/Circ.1229) and (MSC.1/Circ.1461), according to the following schedule:

ships constructed before 1-January-2016 shall comply with this requirement at the first scheduled renewal survey of the ship on or after 1-January-2016 but not later than 1-January-2021;

ships constructed before 1-January-2016 need not be replaced provided it is capable of verifying compliance with intact and damage stability, to the satisfaction of the Administration; and

) for the purposes of control under regulation 16 of MARPOL Annex II, the Administration shall issue a document of approval for the stability instrument.

All of the above are correct answers

6. Shipside discharges below the freeboard deck shall comply with the requirements of the relevant regulation of the International Convention on Load Lines in force, except that the choice of valves shall be limited to:

one automatic non-return valve with a positive means of closing from above the freeboard deck; or

where the vertical distance from the summer load waterline to the inboard end of the discharge pipe exceeds 0.01L, two automatic non-return valves without positive means of closing, provided that the inboard valve is always accessible for examination under service conditions

All of the above are correct answers

7. Ships subject to the IBC Code shall be capable of surviving in a condition of stable equilibrium and should satisfy the following criteria for any stage of flooding:

The waterline, taking into account sinkage, heel and trim, shall be below the lower edge of any opening through which progressive flooding or downflooding may take place. Such openings shall include air pipes and openings which are closed by means of weathertight doors or hatch covers and may exclude those openings closed by means of watertight manhole covers and watertight flush scuttles, small watertight cargo-tank hatch covers which maintain the high integrity of the deck, remotely operated watertight sliding doors, and sidescuttles of the non-opening type;

The maximum angle of heel due to unsymmetrical flooding shall not exceed 25°, except that this angle may be increased to 30° if no deck immersion occurs;

The residual stability during intermediate stages of flooding shall be to the satisfaction of the Administration

All of the above

8. Cargoes, residues of cargoes or mixtures containing cargoes, which react in a hazardous manner with other cargoes, residues or mixtures, shall:

Be segregated from such other cargoes by means of a cofferdam, void space, cargo pump-room, pump-room, empty tank, or tank containing a mutually compatible cargo;

Have separate pumping and piping systems which shall not pass through other cargo tanks containing such cargoes, unless encased in a tunnel; and

Have separate tank venting systems.

All of the above

9. In any heating or cooling system, means shall be provided to ensure that, when in any condition other than empty, a higher pressure can be maintained within the system than the maximum pressure head that could be exerted by the cargo tank contents on the system. Means shall be provided for measuring the cargo temperatura as detailed as follow:

The means for measuring the cargo temperature shall be of restricted or closed type, respectively, when a restricted or closed gauging device is required for individual substances

A restricted temperature-measuring device is subject to the definition for a restricted gauging device (e.g. a portable thermometer lowered inside a gauge tube of the restricted type).

A closed temperature-measuring device is subject to the definition for a closed gauging device (e.g. a remote-reading thermometer of which the sensor is installed in the tank).

When overheating or overcooling could result in a dangerous condition, an alarm system which monitors the cargo temperature shall be provided.

All of the above

10. The position of vent outlets of a controlled tank venting system shall be arranged:

at a height of not less than 6 m above the weather deck or above a raised walkway if fitted within 4 m of the raised walkway; and

at a distance of at least 10 m measured horizontally from the nearest air intake or opening to accommodation, service and machinery spaces and ignition sources.

All of the above

11. There are four different types of control for cargo tanks, as follows:

Inerting: by filling the cargo tank and associated piping systems and the spaces surrounding the cargo tanks, with a gas or vapour which will not support combustion and which will not react with the cargo, and maintaining that condition.

Padding: by filling the cargo tank and associated piping systems with a liquid, gas or vapour which separates the cargo from the air, and maintaining that condition.

Drying: by filling the cargo tank and associated piping systems with moisturefree gas or vapour with a dewpoint of -40°C or below at atmospheric pressure, and maintaining that condition.

Ventilation: forced or natural.

All of the above

12. The environmental control requirements for individual products: The required types of environmental control for certain products are shown in column h in the table of chapter 17 of the IBC Code

True

False

13. Protective equipment: For the protection of crew members who are engaged in loading and discharging operations, the ship shall have on board suitable protective equipment consisting of large aprons, special gloves with long sleeves, suitable footwear, coveralls of chemical-resistant material, and tight-fitting goggles or face shields or both. The protective clothing and equipment shall cover all skin so that no part of the body is unprotected

True

False

14. A copy of the IBC Code, or national regulations incorporating the provisions of the IBC Code, shall be on board every ship:

True

False

15. Personnel training shall include:

All personnel shall be adequately trained in the use of protective equipment and have basic training in the procedures appropriate to their duties necessary under emergency conditions.

Personnel involved in cargo operations shall be adequately trained in handling procedures.

Officers shall be trained in emergency procedures to deal with conditions of leakage, spillage or fire involving the cargo and a sufficient number of them shall be instructed and trained in essential first aid for cargoes carried, based on the guidelines developed by the IMO.

All of the above

16. During handling and carriage of cargoes producing flammable and/or toxic vapours or when ballasting after the discharge of such cargo, or when loading or unloading cargo, cargo tank lids shall always be kept closed. With any hazardous cargo, cargo tank lids, ullage and sighting ports and tank washing access covers shall be open only when necessary. Personnel shall not enter cargo tanks, void spaces around such tanks, cargo-handling spaces or other enclosed spaces unless:

The compartment is free of toxic vapours and not deficient in oxygen; or

Personnel wear breathing apparatus and other necessary protective equipment, and the entire operation is under the close supervision of a responsible officer.

Personnel shall not enter such spaces when the only hazard is of a purely flammable nature, except under the close supervision of a responsible officer.

All of the above

17. Chapter 19 of the IBC Code is the necessary reference to know the index (list) of products carried in bulk. The index has been developed for information purposes only.

True

False