IHMM CDGP Certified Dangerous Goods Professional

Under the UN Model Regulations, how many hazard classes are there for the classification of dangerous goods?

• A7 hazard classes
• B9 hazard classes
• C11 hazard classes
• D13 hazard classes

What is the proper sequence for determining the classification of a dangerous good under the UN Model Regulations?

• AAssign UN number, determine hazard class, assign packing group, verify proper shipping na…
• BDetermine hazard class, assign UN number, assign packing group, verify proper shipping na…
• CDetermine hazard class, assign packing group, identify proper shipping name, assign UN nu…
• DVerify proper shipping name, determine hazard class, assign packing group, assign UN numb…

In the UN Model Regulations, what does Packing Group I indicate?

• ALow danger substances requiring standard packaging
• BMedium danger substances requiring performance packaging
• CHigh danger substances requiring the highest performance packaging standards
• DNon-dangerous goods exempt from packaging requirements

According to the UN Model Regulations, which of the following is NOT a required element on a dangerous goods transport document?

• AThe UN number preceded by "UN"
• BThe proper shipping name
• CThe shipper's account number
• DThe hazard class or division number

What is the purpose of Special Provision 340 in the UN Model Regulations?

• ATo exempt certain quantities of dangerous goods from regulation
• BTo provide packaging instructions for infectious substances
• CTo allow dangerous goods in apparatus or machinery to be transported under specific condi…
• DTo specify radioactive material transport requirements

Under the UN Model Regulations, what marking is required on packages containing dangerous goods of Packing Group I?

• AOnly the UN number and proper shipping name
• BThe UN number, proper shipping name, and the letter "X" in the packaging code
• CThe UN number, proper shipping name, and a red diamond-shaped hazard label
• DOnly the proper shipping name and hazard class label

What does the term "limited quantities" refer to in the UN Model Regulations?

• AAny amount of dangerous goods below the threshold requiring placarding
• BSpecific maximum quantities per inner and outer packaging that qualify for reduced regula…
• CDangerous goods transported for personal use only
• DRadioactive materials below the activity threshold

When a substance meets the criteria for multiple hazard classes, how is the primary hazard class determined under the UN Model Regulations?

• AThe hazard class with the lowest class number is always primary
• BThe hazard class appearing first alphabetically is primary
• CThe precedence of hazard table in the regulations determines the primary hazard
• DThe shipper determines the primary hazard based on transportation mode

What is the purpose of the Dangerous Goods List (DGL) in the UN Model Regulations?

• ATo list all banned dangerous goods prohibited from transport
• BTo provide a reference of dangerous goods with their UN numbers, proper shipping names, a…
• CTo provide emergency response information for each substance
• DTo list only radioactive materials and their activity limits

Under the UN Model Regulations, what is required for the transport of excepted quantities of dangerous goods?

• AFull dangerous goods documentation and hazard labels
• BNo markings or documentation of any kind
• CA specific excepted quantities marking and compliance with inner and outer packaging quan…
• DPlacarding of the transport unit only

According to the UN Model Regulations, when must a substance be assigned to Class 4.3 (Dangerous When Wet)?

• AWhen the substance reacts with water to emit flammable gases
• BWhen the substance is spontaneously combustible in air
• CWhen the substance is a flammable solid that burns intensely
• DWhen the substance is water-soluble and toxic

What is the significance of Column 16 in the UN Model Regulations Dangerous Goods List?

• AIt specifies the maximum net quantity per package
• BIt provides the emergency response guide number
• CIt indicates special provisions applicable to the substance
• DIt shows the stowage and segregation requirements

What is the relationship between the ICAO Technical Instructions and the UN Model Regulations?

• AThe ICAO Technical Instructions are completely independent of the UN Model Regulations
• BThe ICAO Technical Instructions are based on the UN Model Regulations with additional avi…
• CThe UN Model Regulations are derived from the ICAO Technical Instructions
• DThe ICAO Technical Instructions only apply to passenger aircraft, not cargo aircraft

Under the ICAO Technical Instructions, which of the following dangerous goods is generally forbidden for transport on passenger aircraft?

• ALimited quantities of consumer commodities
• BCertain toxic substances and undeclared dangerous goods
• CRadioactive material in Type A packages
• DMagnetized material

What document must be completed for all dangerous goods transported by air under the ICAO Technical Instructions?

• AThe Shipper's Declaration for Dangerous Goods
• BThe Air Waybill only
• CThe Master Air Waybill
• DThe House Air Waybill

Under the ICAO Technical Instructions, who is responsible for ensuring that dangerous goods are properly prepared for transport by air?

• AThe airline accepting the cargo
• BThe ground handling agent
• CThe shipper (consignor)
• DThe captain of the aircraft

What is the purpose of the "Cargo Aircraft Only" (CAO) label in air transport?

• ATo indicate packages that can only be loaded in the cargo hold of passenger aircraft
• BTo identify packages that are forbidden on passenger aircraft and must fly on cargo-only…
• CTo mark packages requiring temperature control during flight
• DTo indicate radioactive materials that exceed passenger aircraft limits

Under the ICAO Technical Instructions, what is required when dangerous goods are loaded on an aircraft?

• ANotification to the captain (NOTOC) listing the dangerous goods on board
• BOnly the ground handling agent needs to be informed
• CNo notification is required if the goods are properly packaged
• DNotification to passengers about the dangerous goods

What marking must appear on packages containing dangerous goods for air transport that have been prepared as limited quantities?

• ANo marking is required for limited quantities by air
• BA square marking with black hatching and "Y" in the center
• CThe standard limited quantity mark with "LTD QTY" text
• DOnly the hazard labels are required

Under the ICAO Technical Instructions, what is the significance of packing instruction numbers beginning with "Y"?

• AThey apply only to radioactive materials
• BThey are limited quantity packing instructions for passenger and cargo aircraft
• CThey indicate packing instructions for excepted quantities
• DThey are obsolete instructions no longer in use

A substance has a flash point of 15°C. Under which hazard class should it be classified?

• AClass 2 - Gases
• BClass 3 - Flammable Liquids
• CClass 4 - Flammable Solids
• DClass 8 - Corrosive Substances

What is the threshold concentration for classifying a mixture as Class 6.1 (Toxic) based on inhalation toxicity (LC50) for vapors?

• ALC50 ≤ 0.5 mg/L for a 1-hour exposure
• BLC50 ≤ 5 mg/L for a 1-hour exposure
• CLC50 ≤ 10 mg/L for a 1-hour exposure
• DLC50 ≤ 20 mg/L for a 1-hour exposure

A material spontaneously ignites within 5 minutes of contact with air. Which division of Class 4 should it be assigned to?

• ADivision 4.1 - Flammable Solids
• BDivision 4.2 - Substances Liable to Spontaneous Combustion
• CDivision 4.3 - Dangerous When Wet
• DClass 5.1 - Oxidizing Substances

What criterion is used to determine if a gas falls under Division 2.1 (Flammable Gases)?

• AA gas that ignites at any concentration in air
• BA gas with a flammable range in air at 20°C and standard pressure
• CA gas with a vapor pressure exceeding 300 kPa at 50°C
• DA gas that is toxic at low concentrations

For radioactive material classification, what determines whether a package is classified as Type A or Type B?

• AThe physical size of the package
• BThe activity level of the radioactive contents and the potential radiological hazard
• CThe destination country
• DThe mode of transport only

What packing group is assigned to oxidizing substances with a mean burning time less than the burning time of a 3:1 potassium bromate/cellulose mixture?

• APacking Group I
• BPacking Group II
• CPacking Group III
• DNo packing group is assigned

Which of the following substances would be classified as Class 8 (Corrosive)?

• AA liquid with a pH of 5 that causes visible destruction of human skin
• BA substance that corrodes steel at a rate of 5 mm per year at 55°C
• CBoth A and B
• DNeither A nor B

What is the proper shipping name for a solution containing 70% ethanol in water?

• AALCOHOLS, N.O.S.
• BETHANOL SOLUTION
• CETHANOL (ETHYL ALCOHOL)
• DBoth B and C may be acceptable depending on concentration

Under the UN classification system, what determines whether an explosive is assigned to Division 1.1 versus Division 1.4?

• AThe chemical composition only
• BThe physical state (solid, liquid, gas)
• CThe hazard characteristic - mass explosion hazard for 1.1 versus minor blast hazard for 1…
• DThe intended commercial use

When classifying a mixture for transport, what approach should be used if test data for the mixture itself is not available?

• AAssume the mixture is non-dangerous
• BUse the classification of the most dangerous component
• CApply the additivity formula or summation methods described in the regulations
• DRequest an exemption from classification

What is the purpose of the "n.o.s." (Not Otherwise Specified) entry in the Dangerous Goods List?

• ATo indicate obsolete shipping names
• BTo provide a generic entry for dangerous goods that do not have a specific proper shippin…
• CTo identify non-regulated substances
• DTo list substances that are normally stable

Which hazard class takes precedence when a substance meets the criteria for both Class 3 (Flammable Liquid) and Class 6.1 (Toxic)?

• AClass 3 always takes precedence
• BClass 6.1 always takes precedence
• CIt depends on the specific substance and the precedence of hazard table
• DNeither takes precedence; both are listed as primary hazards

What characteristic defines substances in Class 9 (Miscellaneous Dangerous Goods)?

• AThey are only mildly flammable
• BThey present dangers not covered by other hazard classes during transport
• CThey are radioactive materials with low activity
• DThey are mixtures of two or more hazard classes

How is the packing group determined for a flammable liquid with a flash point of -5°C and an initial boiling point of 45°C?

• APacking Group I - initial boiling point ≤ 35°C
• BPacking Group II - flash point < 23°C and initial boiling point > 35°C
• CPacking Group III - flash point ≥ 23°C and ≤ 60°C
• DNot classified as dangerous goods

When assigning a UN number, what is the hierarchy of selection if multiple entries could apply?

• AAlways use the most specific entry available
• BAlways use the generic N.O.S. entry
• CSelect based on alphabetical order
• DIt does not matter which entry is used

What does the packaging code "4G" indicate in the UN Model Regulations?

• AA steel drum
• BA fiberboard box
• CA plastic jerrican
• DA plywood drum

What drop test height is required for Packing Group I packaging performance testing?

• A0.8 meters
• B1.2 meters
• C1.8 meters
• D2.4 meters

What is the purpose of the hydrostatic pressure test for packaging intended for liquids?

• ATo verify the packaging can withstand internal pressure without leaking
• BTo test the packaging's resistance to external water pressure
• CTo measure the packaging's buoyancy
• DTo test the effect of water on the packaging material

What is a combination packaging?

• APackaging made from two different materials bonded together
• BAn outer packaging containing one or more inner packagings
• CPackaging that can be used for both liquids and solids
• DPackaging designed for multi-modal transport

What marking must appear on a UN-certified package to indicate it meets the required performance standards?

• AOnly the letters "UN" in a circle
• BThe UN packaging symbol, packaging code, and test information
• COnly the hazard label
• DThe shipper's name and address

What is the minimum cushion thickness required between inner packagings and the outer packaging in a combination package?

• ANo minimum; any thickness is acceptable
• BAt least 1 cm on all sides
• CSufficient to prevent breakage and leakage under normal transport conditions
• DExactly 5 cm on all sides

What is the difference between single packaging and combination packaging?

• ASingle packaging is for liquids, combination packaging is for solids
• BSingle packaging is a single receptacle without inner packagings, while combination packa…
• CSingle packaging is disposable, combination packaging is reusable
• DSingle packaging is for air transport only, combination packaging is for all modes

What is a composite packaging?

• AAny packaging containing more than one type of dangerous good
• BPackaging consisting of an inner receptacle and an outer packaging that are bonded togeth…
• CPackaging made from composite materials like carbon fiber
• DPackaging designed for both air and sea transport

What is the maximum net quantity of a Packing Group I flammable liquid permitted in a single combination package for passenger aircraft?

• A0.5 L
• B1 L
• C5 L
• DThere is no limit for combination packaging

What type of packaging is required for infectious substances (Category A) under the UN Model Regulations?

• AStandard fiberboard boxes
• BTriple packaging consisting of a primary receptacle, secondary packaging, and rigid outer…
• CSingle metal drums only
• DPlastic bags only

What is an Intermediate Bulk Container (IBC)?

• AAny container between 100 L and 1000 L capacity
• BA rigid or flexible portable packaging for solids or liquids with a capacity not exceedin…
• CA container used only for sea transport
• DA type of tank vehicle

What is the primary purpose of orientation arrows on packages containing liquids?

• ATo indicate which side should face up during transport
• BTo show the direction of package movement
• CTo indicate the direction of the internal liquid flow
• DTo mark the heaviest side of the package