I85PREP
⌘ K
ANAC DOV Module 2 study materials
ANAC DOV Module 2 study resources

ANAC DOV Module 2 practice questions

One question at a time. Build your ANAC DOV Module 2 understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Regulatory framework and legal responsibilities for dangerous goods

Under the ANAC dangerous goods regulations, who holds ultimate legal responsibility for ensuring that cargo offered for transport is correctly classified, packed, marked and documented?

  1. The aircraft loading supervisor at the departure station
  2. The freight forwarder acting as an intermediary
  3. The shipper who offers the consignment for transport Correct answer.
  4. The consignee who receives the shipment at destination

Explanation

The regulations place the primary duty on the shipper, because that party knows the nature of the goods and controls classification, packing, marking and documentation before the consignment is tendered. Other parties have their own acceptance and handling duties, but these do not displace the shipper's underlying legal obligation.

Question 2Regulatory framework and legal responsibilities for dangerous goods

Which document must accompany a dangerous goods consignment and contain the signed declaration that the shipment is fully and accurately described and properly packed?

  1. The air waybill only
  2. The packing list
  3. The cargo manifest
  4. The shipper's declaration for dangerous goods Correct answer.

Explanation

The shipper's declaration for dangerous goods is the signed certification in which the shipper confirms correct classification, packing, marking, labelling and documentation. The air waybill and manifest carry operational data but do not replace that signed declaration.

Question 3Regulatory framework and legal responsibilities for dangerous goods

What is the primary purpose of the ANAC dangerous goods regulations?

  1. To ensure the safe transport of dangerous goods by air Correct answer.
  2. To set ticket pricing rules for cargo operators
  3. To standardise aircraft maintenance intervals
  4. To define crew duty time limitations

Explanation

The regulations exist to protect aircraft, occupants and the public by controlling how dangerous goods are classified, packed, marked, documented and carried. They are safety rules, not commercial or airworthiness scheduling rules.

Question 4Regulatory framework and legal responsibilities for dangerous goods

A passenger presents a small lithium battery powered device in carry-on baggage. Under the regulations, which statement reflects the general legal position?

  1. Devices may be carried subject to the specified conditions and limits Correct answer.
  2. Batteries require a shipper's declaration signed by the passenger
  3. Spare batteries must be in checked baggage only
  4. All lithium batteries are forbidden in the cabin

Explanation

Lithium batteries are permitted for passengers only within defined conditions covering watt-hour limits, terminal protection and where spare batteries may be placed. These conditions are set in the regulatory provisions for passengers and crew, not left to operator discretion.

Question 5Regulatory framework and legal responsibilities for dangerous goods

Which body is responsible for enforcing compliance with the dangerous goods regulations within the State's civil aviation system?

  1. The national civil aviation authority Correct answer.
  2. The airport fire service
  3. The aircraft manufacturer
  4. The ground handling company

Explanation

The civil aviation authority of the State administers and enforces the regulations, including oversight, inspection and sanction powers. Industry organisations and manufacturers support compliance but do not hold regulatory enforcement authority.

Question 6Regulatory framework and legal responsibilities for dangerous goods

What does the term 'dangerous goods' mean in the regulatory framework?

  1. Any cargo with a declared value above a set threshold
  2. Only goods that are radioactive or infectious
  3. Goods that are carried only on freighter aircraft
  4. Articles or substances capable of posing a risk to health, safety, property or the environment Correct answer.

Explanation

Dangerous goods are defined by the risk they present to health, safety, property or the environment, and the regulatory list identifies which articles and substances fall within that definition. The concept is risk-based and is not limited to particular hazard classes or aircraft types.

Question 7Regulatory framework and legal responsibilities for dangerous goods

Which of the following is a legal obligation of the operator under the dangerous goods regulations?

  1. Guaranteeing that no shipment will ever be delayed
  2. Providing information to passengers about prohibited dangerous goods Correct answer.
  3. Publishing shippers' commercial contracts
  4. Accepting all consignments offered without inspection

Explanation

Operators must inform passengers about the dangerous goods that may not be carried and about restrictions on permitted items. This information duty supports safety by preventing undeclared hazardous items from entering the cabin.

Question 8Regulatory framework and legal responsibilities for dangerous goods

Who is required to receive dangerous goods training under the regulatory framework?

  1. Only external auditors
  2. Only the accountable manager of the operator
  3. Only staff who physically load aircraft
  4. Personnel whose duties involve dangerous goods, as specified in the regulations Correct answer.

Explanation

Training obligations attach to personnel whose duties involve dangerous goods, such as acceptance, handling, loading, documentation and crew functions. The requirement is function-based rather than limited to a single job title or to management.

Question 9Regulatory framework and legal responsibilities for dangerous goods

A consignment is found to contain undeclared dangerous goods after acceptance. Which party is legally accountable for the false or missing declaration?

  1. The pilot in command of the flight
  2. The warehouse security officer
  3. The shipper who signed and tendered the declaration Correct answer.
  4. The aircraft owner

Explanation

The shipper certifies the accuracy of the declaration, so an undeclared or misdeclared shipment breaches the shipper's legal duty. The operator may also face consequences for acceptance failures, but the declaration itself is the shipper's responsibility.

Question 10Regulatory framework and legal responsibilities for dangerous goods

An operator discovers that a consignment's declaration lists a proper shipping name that does not match the packed substance. What is the appropriate regulatory response?

  1. Correct the declaration on the shipper's behalf and dispatch
  2. Load the shipment and note the discrepancy after departure
  3. Reject the consignment and notify the shipper of the discrepancy Correct answer.
  4. Accept the shipment because the packing appears intact

Explanation

Acceptance staff must verify that the declaration matches the consignment, and a mismatch means the shipment cannot be accepted as presented. The operator should refuse it and inform the shipper so a correct declaration can be prepared.

Question 11Regulatory framework and legal responsibilities for dangerous goods

Which statement best describes the relationship between the ANAC regulations and the ICAO Technical Instructions?

  1. The Technical Instructions apply only to non-scheduled operations
  2. The regulations are entirely independent and share no technical content
  3. The regulations give effect to the international standards for the safe air transport of dangerous goods Correct answer.
  4. The regulations override the Technical Instructions in all cases

Explanation

National regulations implement the international technical standards so that shipments can move consistently across borders. The ICAO Technical Instructions provide the detailed technical content that the State's rules bring into legal effect.

Question 12Regulatory framework and legal responsibilities for dangerous goods

A shipper wants to offer a substance that appears on the forbidden list for transport by air. What is the correct legal position?

  1. It may be carried if the quantity is below one kilogram
  2. It may be carried if the pilot in command agrees
  3. It may be carried if the operator obtains a foreign permit
  4. It may not be offered for air transport under the regulations Correct answer.

Explanation

Goods listed as forbidden for transport by air may not be offered or accepted, regardless of quantity or crew consent. The prohibition is absolute unless a specific approval route is expressly provided in the regulations.

Question 13Regulatory framework and legal responsibilities for dangerous goods

Which of the following is an example of a State responsibility under the dangerous goods framework?

  1. Signing the shipper's declaration on behalf of exporters
  2. Loading cargo onto aircraft at each station
  3. Packing each consignment before transport
  4. Issuing approvals and overseeing operators' dangerous goods programmes Correct answer.

Explanation

The State, through its civil aviation authority, establishes requirements, issues approvals and conducts oversight of operators' programmes. Packing, declaring and loading are duties of the parties in the transport chain, not of the regulator.

Question 14Regulatory framework and legal responsibilities for dangerous goods

An operator's dangerous goods manual is found to be out of date relative to the current regulations. What is the most significant regulatory consequence?

  1. No consequence, because manuals are advisory only
  2. The manual becomes a commercial document only
  3. The operator is in breach of its obligation to maintain compliant procedures Correct answer.
  4. The manual automatically becomes an approved alternative method

Explanation

Operators are required to maintain procedures that reflect the current regulations, and an outdated manual indicates a failure of that obligation. Oversight findings, corrective action requirements or enforcement measures may follow.

Question 15Regulatory framework and legal responsibilities for dangerous goods

Which party is responsible for ensuring that packaging used for a dangerous goods consignment is authorised for that substance?

  1. The insurer of the cargo
  2. The destination customs authority
  3. The aircraft maintenance organisation
  4. The shipper preparing the consignment Correct answer.

Explanation

Selecting packaging that complies with the applicable packing instructions is part of the shipper's preparation duties. The operator then verifies compliance at acceptance but does not select the packaging.

Question 16Regulatory framework and legal responsibilities for dangerous goods

What does the 'competent authority' mean in the dangerous goods regulatory framework?

  1. The manufacturer of the packaging
  2. The largest ground handler at an airport
  3. The authority designated by a State for a specific regulatory function Correct answer.
  4. Any senior captain designated by the operator

Explanation

The competent authority is the body a State designates to perform particular functions, such as approvals, exemptions or oversight, under the regulations. Designation is by function and by State, not by company size or seniority.

Question 17Regulatory framework and legal responsibilities for dangerous goods

A shipment requires a State exemption because it does not meet a specific requirement. Which statement reflects the regulatory position?

  1. Any operator may self-grant an exemption
  2. Exemptions remove all documentation requirements
  3. Exemptions are available only to passenger baggage
  4. Exemptions may be granted by the competent authority under defined conditions Correct answer.

Explanation

Exemptions are granted by the competent authority and are subject to the conditions and limits set out in the regulations. They are not self-issued by operators and do not eliminate the underlying documentation obligations.

Question 18Regulatory framework and legal responsibilities for dangerous goods

Which of the following best describes the operator's duty when a passenger declares an item that is a dangerous good requiring approval?

  1. The item should be accepted without further checks
  2. The item may be carried only if the applicable approval and conditions are met Correct answer.
  3. The item must always be surrendered to the authority
  4. The item may be carried if other passengers do not object

Explanation

Certain dangerous goods may be carried by passengers only with approval and only when the specified conditions are satisfied. Without that approval and compliance, the item cannot be carried.

Question 19Regulatory framework and legal responsibilities for dangerous goods

Why do the regulations require record keeping for dangerous goods shipments and training?

  1. To determine aircraft resale value
  2. To replace the air waybill
  3. To calculate passenger fares
  4. To support traceability, oversight and investigation Correct answer.

Explanation

Records allow the authority and the operator to trace consignments, verify training validity and investigate incidents. This supports oversight and accountability throughout the transport chain.

Question 20Regulatory framework and legal responsibilities for dangerous goods

An operator accepts a consignment without verifying the shipper's declaration. Which compliance failure does this represent?

  1. A failure of aircraft maintenance planning
  2. A failure of customs valuation
  3. A failure of the acceptance check required before carriage Correct answer.
  4. A failure of passenger screening

Explanation

The operator must perform acceptance checks confirming that documentation, packing, marking and labelling meet the regulations before carriage. Skipping that check is an acceptance failure for which the operator is accountable.

Question 21Regulatory framework and legal responsibilities for dangerous goods

A shipper delegates packing and declaration to a forwarder. How does this affect legal responsibility under the regulations?

  1. Responsibility disappears because a third party is involved
  2. Responsibility is shared equally with the destination authority
  3. The shipper remains responsible for compliance of the consignment as tendered Correct answer.
  4. Responsibility shifts entirely to the aircraft operator

Explanation

Delegating tasks to an agent does not remove the shipper's regulatory responsibility for the consignment as tendered. The agent may also bear duties, but the shipper remains accountable to the authority.

Question 22Regulatory framework and legal responsibilities for dangerous goods

Which situation most clearly indicates that an operator has failed its oversight obligation regarding dangerous goods?

  1. The operator conducts periodic audits and closes findings
  2. The operator trains staff annually and keeps records
  3. The operator maintains a current dangerous goods manual
  4. The operator repeatedly loads undeclared dangerous goods without corrective action Correct answer.

Explanation

Oversight requires detecting non-compliance and taking effective corrective action. Repeated incidents without correction show that the operator's internal control and oversight system is not functioning.

Question 23Regulatory framework and legal responsibilities for dangerous goods

Two States apply different national variations to the same dangerous goods requirement. What is the correct approach for an operator flying between them?

  1. Apply only the variation of the State of registry
  2. Apply the less restrictive variation on all segments
  3. Apply the variations of each State as applicable to the operations concerned Correct answer.
  4. Ignore both variations and rely only on the technical instructions

Explanation

Where States publish variations, operators must apply the requirements applicable to the operations in each State concerned. Selecting the least restrictive option or ignoring variations would breach the applicable national rules.

Question 24Regulatory framework and legal responsibilities for dangerous goods

An operator wishes to use an alternative method that differs from a prescribed requirement. What must be established before it is used?

  1. A verbal agreement with the shipper
  2. Consent from the ground handling staff
  3. A note in the cargo manifest after departure
  4. Approval by the competent authority under the prescribed process Correct answer.

Explanation

Alternative methods require formal approval by the competent authority, which assesses whether an equivalent level of safety is achieved. Informal agreements or after-the-fact notes do not create lawful authority.

Question 25Regulatory framework and legal responsibilities for dangerous goods

Which reasoning best explains why the regulations place documentation duties on the shipper rather than on the loading crew?

  1. Documentation is cheaper to produce at the origin station
  2. Loading crews lack the technical knowledge of the goods that the shipper possesses Correct answer.
  3. Loading crews are prohibited from reading documents
  4. The shipper is the only party with insurance

Explanation

The shipper knows the chemical and physical properties of the goods and is therefore best placed to classify and describe them accurately. Placing the documentation duty there allocates responsibility to the party with the relevant knowledge and control.

Question 26Regulatory framework and legal responsibilities for dangerous goods

Under the ANAC dangerous goods framework, which document must accompany a consignment and be signed by the person who prepared it, certifying that the shipment has been prepared in accordance with the applicable regulations?

  1. The cargo manifest prepared by the ground handler
  2. The air waybill issued by the operator
  3. The packing list issued by the freight forwarder
  4. The shipper's declaration for dangerous goods Correct answer.

Explanation

The shipper's declaration for dangerous goods is the formal document in which the person preparing the consignment certifies that the goods have been classified, packed, marked, labelled and documented in accordance with the applicable regulations. It must be signed and accompanies the consignment through the transport chain. The air waybill, manifest and packing list serve commercial or handling purposes and do not carry this certification.

Question 27Regulatory framework and legal responsibilities for dangerous goods

What is the purpose of the dangerous goods incident reporting obligation placed on operators?

  1. To satisfy insurers that the operator holds a valid air operator certificate
  2. To provide marketing data on the frequency of dangerous goods shipments
  3. To allow the competent authority to investigate occurrences and take corrective action to prevent recurrence Correct answer.
  4. To determine which shipper should receive a commercial discount

Explanation

Incident and accident reporting exists so that the competent authority can be informed of occurrences involving dangerous goods, investigate their causes and ensure corrective action is taken to prevent recurrence. The reports feed into the State's oversight function and may lead to enforcement or safety action. They are safety oversight tools, not commercial or insurance instruments.

Question 28Regulatory framework and legal responsibilities for dangerous goods

A shipper offers a consignment in packaging that is authorised for the substance, but the package bears no hazard labels. Which statement best describes the legal position under the regulations?

  1. The consignment is non-compliant only if the operator chooses to reject it at acceptance
  2. The consignment is compliant because the packaging itself has been properly authorised for the substance
  3. The consignment is non-compliant because marking and labelling are mandatory requirements independent of the packaging authorisation Correct answer.
  4. The consignment is compliant provided the air waybill mentions the hazard involved

Explanation

Compliance with the dangerous goods regulations requires the cumulative satisfaction of classification, packing, marking, labelling and documentation requirements. Authorised packaging alone does not make a consignment compliant, because hazard labels communicate essential information to handling staff and emergency responders. The absence of required labels is therefore a breach regardless of the packaging's suitability.

Question 29Regulatory framework and legal responsibilities for dangerous goods

An operator intends to carry a consignment under a State exemption. Which condition must be satisfied for the carriage to be lawful?

  1. The exemption is unnecessary if the shipper accepts the risk in writing
  2. The exemption must be issued in advance by the competent authority and the consignment carried in accordance with its terms Correct answer.
  3. The operator may self-authorise the exemption provided the pilot in command is informed before departure
  4. The exemption may be granted verbally by the loading supervisor at the time of departure

Explanation

An exemption is a formal authorisation granted by the competent authority that permits carriage otherwise not allowed, and it is valid only within the terms and conditions the authority specifies. It must be obtained before the flight and complied with exactly. Neither the operator, the loading supervisor nor the shipper can create or substitute for such an authorisation.

Question 30Regulatory framework and legal responsibilities for dangerous goods

A forwarder accepts a consignment from a shipper, repacks it into different packaging and signs the declaration in its own name. How are the regulatory responsibilities affected?

  1. Responsibility passes entirely to the operator, which must verify the repacking before loading
  2. The forwarder assumes the shipper's responsibilities for the acts it performs and must ensure the repacking and declaration comply with the regulations Correct answer.
  3. Responsibility remains exclusively with the original shipper because the goods originated from that party
  4. Responsibility is shared equally with the original shipper regardless of who performed the repacking

Explanation

The regulations attach responsibility to the party performing each function, so a forwarder that repacks goods and signs the declaration acts as the shipper for those functions and must comply accordingly. The original shipper remains responsible for the information it supplied, but it does not absorb the forwarder's own acts. Responsibility is allocated by function rather than transferred wholesale to the operator or shared automatically.

Question 31Classification of dangerous goods

Under the ANAC dangerous goods regulations, which of the following items is classed as a Class 1 dangerous good?

  1. Compressed oxygen cylinders
  2. Aerosol dispensers containing flammable propellant
  3. Sulphuric acid in a battery
  4. Industrial detonators used in mining Correct answer.

Explanation

Class 1 covers explosives, including detonators and blasting caps used in mining and construction. The other items belong to Class 2 (gases and aerosols) or Class 8 (corrosives), so they are classified outside Class 1.

Question 32Classification of dangerous goods

A substance is described in the dangerous goods list with the packing group designation 'II'. What does this designation indicate?

  1. The substance poses a moderate degree of danger within its class Correct answer.
  2. The substance requires a radioactive transport index
  3. The substance is forbidden for transport by air
  4. The substance may only be carried on cargo aircraft

Explanation

Packing groups I, II and III express the degree of danger within a class: I is great danger, II is moderate danger and III is minor danger. The packing group does not itself determine aircraft type or prohibit carriage.

Question 33Classification of dangerous goods

Which hazard label is required for a substance classified in Division 6.1?

  1. A label showing a test tube dripping onto a hand and metal
  2. A label showing a gas cylinder
  3. A label showing a skull and crossbones Correct answer.
  4. A label showing a flame

Explanation

Division 6.1 covers toxic substances, and the associated hazard label depicts a skull and crossbones. The flame label indicates flammability, the corroding hand label indicates Class 8 and the cylinder label indicates Class 2 gases.

Question 34Classification of dangerous goods

Which of the following is the correct description of Class 7 in the dangerous goods classification?

  1. Substances that spontaneously combust on contact with air
  2. Infectious substances capable of causing disease
  3. Radioactive material with an activity concentration above the exempt limits Correct answer.
  4. Liquid substances that give off flammable vapour

Explanation

Class 7 comprises radioactive material, meaning articles or substances containing radionuclides whose activity exceeds the exempt limits set out in the regulations. Infectious substances are Division 6.2, flammable liquids are Class 3 and pyrophoric substances are Division 4.2.

Question 35Classification of dangerous goods

A shipment consists of lithium ion batteries packed alone and shipped under UN 3480. Which class and division apply?

  1. Class 9 Correct answer.
  2. Class 4.3
  3. Class 3
  4. Class 8

Explanation

Lithium ion batteries, whether shipped alone or contained in equipment, are assigned to Class 9 miscellaneous dangerous goods under UN 3480 or UN 3481. They do not meet the criteria of flammable liquids, corrosives or water-reactive substances.

Question 36Classification of dangerous goods

Which of the following descriptions correctly matches Division 2.3?

  1. Oxidizing gases
  2. Gases that are not flammable, toxic or oxidizing
  3. Flammable gases
  4. Toxic gases Correct answer.

Explanation

Division 2.3 covers gases that are toxic to humans, while Division 2.1 covers flammable gases, Division 2.2 covers non-flammable non-toxic gases and Division 5.1 covers oxidizing substances. A gas that is both toxic and flammable takes the toxic subsidiary risk.

Question 37Classification of dangerous goods

Which of these characteristics is the defining criterion for assignment to Class 3?

  1. A spontaneous temperature rise in a 25 mm cube sample
  2. A flash point of not more than 60 degrees Celsius in a closed cup test Correct answer.
  3. The capacity to cause infection in humans or animals
  4. The ability to corrode aluminium alloy in a standard test

Explanation

Class 3 comprises liquids, or mixtures of liquids, with a flash point of not more than 60 degrees Celsius in a closed cup test, plus certain liquid substances carried at elevated temperature. Corrosivity, self-heating and infectivity are criteria of other classes.

Question 38Classification of dangerous goods

A package bears the label for Division 5.1. Which hazard does this label communicate?

  1. The contents are cryogenic liquids
  2. The contents may explode when heated
  3. The contents may cause or contribute to the combustion of other material Correct answer.
  4. The contents emit flammable gas when wet

Explanation

Division 5.1 covers oxidizing substances, which are not necessarily combustible themselves but can yield oxygen and thereby cause or contribute to the combustion of other material. Explosives, water-reactive substances and refrigerated liquefied gases belong to other classes or divisions.

Question 39Classification of dangerous goods

A consignment of UN 1203 petrol is offered for transport. Which packing group assignment applies to this substance?

  1. No packing group is assigned
  2. Packing group I
  3. Packing group III
  4. Packing group II Correct answer.

Explanation

Motor spirit or petrol is listed with packing group II because its flash point and boiling point place it in the moderate danger band. Packing group I is reserved for substances with an initial boiling point of 35 degrees Celsius or less and a flash point below 23 degrees Celsius.

Question 40Classification of dangerous goods

A liquid has a flash point of 38 degrees Celsius and an initial boiling point of 120 degrees Celsius. Which packing group does it most likely fall into under the flammable liquid criteria?

  1. Packing group II
  2. It is not a Class 3 substance
  3. Packing group I
  4. Packing group III Correct answer.

Explanation

For flammable liquids, packing group III applies where the flash point is above 23 degrees Celsius and not more than 60 degrees Celsius and the initial boiling point is above 35 degrees Celsius. A flash point of 38 degrees Celsius with a high boiling point therefore sits in packing group III.

Question 41Classification of dangerous goods

A consignment contains a substance that is toxic and also corrosive. How is its primary hazard determined for classification purposes?

  1. Both hazards are shown as primary with equal standing
  2. The hazard presenting the greater degree of danger becomes primary and the other is shown as subsidiary Correct answer.
  3. The shipper may choose which hazard is primary
  4. The hazard with the lower numerical class number becomes primary

Explanation

Where a substance meets the criteria of more than one class, the class representing the predominant hazard is assigned as the primary hazard and the other hazards are shown as subsidiary risks. The precedence is determined by the danger presented, not by class numbering or shipper preference.

Question 42Classification of dangerous goods

Which statement best describes the purpose of the dangerous goods list in the technical instructions?

  1. It lists only those substances that are forbidden by air
  2. It provides the proper shipping name, UN number, class, packing group and special provisions for each entry Correct answer.
  3. It records the prices charged for dangerous goods handling
  4. It lists the airlines that are authorised to carry each substance

Explanation

The dangerous goods list is the core reference that ties each entry to its UN number, proper shipping name, class or division, subsidiary risks, packing group, special provisions and packing instructions. It is not an operator authorisation list and it does not record commercial charges.

Question 43Classification of dangerous goods

An entry in the dangerous goods list shows the word 'Forbidden' in the passenger aircraft column but a packing instruction in the cargo aircraft column. What does this mean?

  1. The substance may never be carried by air under any circumstances
  2. The substance may be carried on passenger aircraft in limited quantities only
  3. The substance may be carried on passenger aircraft only with the operator's approval
  4. The substance may not be carried on passenger aircraft but may be carried on cargo aircraft under the stated conditions Correct answer.

Explanation

The columns indicate separately whether a substance is permitted on passenger aircraft and on cargo aircraft. A 'Forbidden' entry in the passenger column means it cannot be carried on passenger aircraft, while a packing instruction in the cargo column allows carriage on cargo aircraft subject to those conditions.

Question 44Classification of dangerous goods

A shipper offers a substance whose technical name is not listed by itself but which falls within a generic or 'n.o.s.' entry. What must be shown in addition to the proper shipping name?

  1. The trade name of the product only
  2. The chemical name of the substance in brackets after the generic name Correct answer.
  3. The name of the manufacturer only
  4. No additional name is required

Explanation

When a generic or not otherwise specified entry is used, the technical or chemical name of the substance must be added in parentheses after the proper shipping name. Trade or manufacturer names alone are not sufficient because they do not identify the chemical nature of the goods.

Question 45Classification of dangerous goods

A package of Division 4.2 goods is being classified. Which property is being assessed?

  1. The tendency to heat spontaneously in contact with air Correct answer.
  2. The tendency to evolve toxic gas when burned
  3. The tendency to ignite readily and burn rapidly
  4. The tendency to react with water to release flammable gas

Explanation

Division 4.2 covers substances liable to spontaneous combustion, meaning they can heat up and ignite when in contact with air without an external ignition source. Water reactivity is Division 4.3 and ready ignitability is Division 4.1.

Question 46Classification of dangerous goods

Which of the following best describes the classification criteria for Division 6.2?

  1. Substances that cause full-thickness skin destruction in animal testing
  2. Substances with an oral lethal dose below 300 milligrams per kilogram
  3. Substances known or reasonably expected to contain pathogens capable of causing disease in humans or animals Correct answer.
  4. Substances that emit ionising radiation above background levels

Explanation

Division 6.2 covers infectious substances, defined as substances known or reasonably expected to contain pathogens that can cause disease in humans or animals. Corrosive and toxic criteria belong to Class 8 and Division 6.1 respectively, while radiation is Class 7.

Question 47Classification of dangerous goods

A substance is assigned to Class 8. Which property must it demonstrate?

  1. It must be a liquid with a flash point below 23 degrees Celsius
  2. It must decompose explosively when heated in a confined space
  3. It must cause full-thickness destruction of intact skin or corrode steel or aluminium Correct answer.
  4. It must be capable of causing a fire when in contact with organic material

Explanation

Class 8 comprises substances that by chemical action cause irreversible damage to skin, or that corrode metals such as steel or aluminium significantly. Flammability and explosive decomposition are criteria of other classes.

Question 48Classification of dangerous goods

A consignment of dry ice is offered as a refrigerant for perishable cargo. Under which UN number and class is dry ice classified?

  1. UN 1013, Class 2.2
  2. UN 1845, Class 9 Correct answer.
  3. UN 1789, Class 8
  4. UN 3316, Class 9

Explanation

Dry ice, or solid carbon dioxide, is classified as UN 1845 in Class 9 because of the asphyxiation risk in confined spaces and the pressure build-up in packaging. It is not a corrosive, a compressed gas or a chemical kit.

Question 49Classification of dangerous goods

A substance is listed with the special provision 'A51'. What is the function of such a special provision in the dangerous goods list?

  1. It replaces the packing instruction for the entry
  2. It identifies the operator that may carry the substance
  3. It sets the price for the transport document
  4. It adds, modifies or clarifies a requirement that applies to that specific entry Correct answer.

Explanation

Special provisions are coded requirements that apply to particular entries and may add conditions, grant exceptions or clarify how the general rules apply. They do not replace packing instructions, identify operators or set commercial terms.

Question 50Classification of dangerous goods

An article contains a small lithium battery and is classified under UN 3363. Which class applies to this entry?

  1. Class 8
  2. Class 9 Correct answer.
  3. Class 2.1
  4. Class 3

Explanation

UN 3363 covers dangerous goods in machinery or apparatus, and such articles are assigned to Class 9 when they contain dangerous goods as residue or as components. The class reflects the miscellaneous nature of the article rather than the class of the individual component.