HAZMAT TECHNICIAN TEST
QUESTIONS WITH CORRECT DETAILED
ANSWERS
Boiling Liquid Expanding Vapor Explosion (BLEVE) - Answer-A container failure with a
release of energy, often rapidly and violently, which is accompanied by a release of gas
to the atmosphere and propulsion of the container or container pieces due to an
overpressure rupture.
Boilover - Answer-The expulsion of crude oil (or certain other liquids) from a burning
tank.
Boom - Answer-A floating physical barrier serving as a continuous obstruction to the
spread of a contaminant.
Branch - Answer-That organizational level within the Incident Command System having
functional/geographic responsibility for major segments of incident operations. This level
is organizationally between Section and Division/Group.
Breakthrough Time - Answer-The elapsed time between initial contact of a hazardous
chemical with the outside surface of a barrier, such as protective clothing material, and
the time at which the chemical can be detected at the inside surface of the material.
Bulk Packaging - Answer-Packaging that has an internal volume grater than 119 gallons
(450 liters) for liquids, a capacity greater than 882 pounds (400 kg) for solids, or a water
capacity greater than 1000 pounds (453.6 kg) for gases.
Carboy - Answer-Glass or plastic bottles used for the transportation of liquids. They
range in capacity to over 20 gallons, and may be encased in an outer packaging such
as polystyrene boxes, wooden crates, or plywood drums. Often used for the shipment of
corrosives.
Chemical Abstract Service (CAS) Number - Answer-Often used by state and local
Right-To-Know regulations for tracking chemicals in the workplace and the community.
Sequentially assigned numbers identify specific chemicals and have no chemical
significance.
Chemical Degradation - Answer-The process of altering the chemical structure of a
contaminant through the use of a secondary chemical or material.
QUESTIONS WITH CORRECT DETAILED
ANSWERS
Boiling Liquid Expanding Vapor Explosion (BLEVE) - Answer-A container failure with a
release of energy, often rapidly and violently, which is accompanied by a release of gas
to the atmosphere and propulsion of the container or container pieces due to an
overpressure rupture.
Boilover - Answer-The expulsion of crude oil (or certain other liquids) from a burning
tank.
Boom - Answer-A floating physical barrier serving as a continuous obstruction to the
spread of a contaminant.
Branch - Answer-That organizational level within the Incident Command System having
functional/geographic responsibility for major segments of incident operations. This level
is organizationally between Section and Division/Group.
Breakthrough Time - Answer-The elapsed time between initial contact of a hazardous
chemical with the outside surface of a barrier, such as protective clothing material, and
the time at which the chemical can be detected at the inside surface of the material.
Bulk Packaging - Answer-Packaging that has an internal volume grater than 119 gallons
(450 liters) for liquids, a capacity greater than 882 pounds (400 kg) for solids, or a water
capacity greater than 1000 pounds (453.6 kg) for gases.
Carboy - Answer-Glass or plastic bottles used for the transportation of liquids. They
range in capacity to over 20 gallons, and may be encased in an outer packaging such
as polystyrene boxes, wooden crates, or plywood drums. Often used for the shipment of
corrosives.
Chemical Abstract Service (CAS) Number - Answer-Often used by state and local
Right-To-Know regulations for tracking chemicals in the workplace and the community.
Sequentially assigned numbers identify specific chemicals and have no chemical
significance.
Chemical Degradation - Answer-The process of altering the chemical structure of a
contaminant through the use of a secondary chemical or material.
