HAZMAT OPERATIONS TEST 2025
QUESTIONS AND ANSWERS
Adsorption is the process of: - ....ANSWER ...-Adhering the contaminant to a
surface
A tank carrier designed to haul various chemicals whose pressures are less than 40 PSI
would be a: - ....ANSWER ...-MC 306/DOT 406
The immediate concern when dealing with combustible liquid spills is to: -
....ANSWER ...-Prevent ignition of the fuel
The highest level of respiratory protection is needed but lesser chemical protection is
required for the skin best describes _______ protection. - ....ANSWER ...-Level B
Chemical Transportation Emergency Center (CHEMTREC) is able to provide
assistance to responders if: - ....ANSWER ...-The name of the shipper and
manufacturer is known
Determining whether a vapor will rise or fall is commonly referred to as: -
....ANSWER ...-Vapor Density
The maximum hose length allowed by NIOSH when using an airline hose respirator is
______ feet. - ....ANSWER ...-300
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
, If a product with a vapor density of 1.6 escaped from its container, you would expect the
product to: - ....ANSWER ...-Collect in low-lying areas
Which resources are available for determining the concentrations of a released hazardous
material in an endangered area? - ....ANSWER ...-Monitoring equipment should be
utilized, keeping in mind that Haz-Mat technicians are needed to operate this
equipment.
Chemicals that ignite when combined create a(n) __________ reaction. -
....ANSWER ...-Exothermic
The eight-step process recommended for assessing a hazardous materials incident
includes: - ....ANSWER ...-Hazard and Risk evaluation
What would be the likely result of allowing a contaminated individual to leave the hot
zone without being decontaminated? - ....ANSWER ...-The contaminates would
likely be transferred to other personal and equipment resulting in secondary
contamination.
When dealing with a Level III incident, it is expected that evacuation of people will
cover an area of. - ....ANSWER ...-Large scale evacuation.
The minimum temperature to which a fuel in air must be heated to initiate self-sustained
combustion without initiation from an independent ignition source is best described as: -
....ANSWER ...-Auto-ignition Temperature
Which DOT Hazard Class covers nerve agents used in chemical warfare? -
....ANSWER ...-DOT 6.1
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
QUESTIONS AND ANSWERS
Adsorption is the process of: - ....ANSWER ...-Adhering the contaminant to a
surface
A tank carrier designed to haul various chemicals whose pressures are less than 40 PSI
would be a: - ....ANSWER ...-MC 306/DOT 406
The immediate concern when dealing with combustible liquid spills is to: -
....ANSWER ...-Prevent ignition of the fuel
The highest level of respiratory protection is needed but lesser chemical protection is
required for the skin best describes _______ protection. - ....ANSWER ...-Level B
Chemical Transportation Emergency Center (CHEMTREC) is able to provide
assistance to responders if: - ....ANSWER ...-The name of the shipper and
manufacturer is known
Determining whether a vapor will rise or fall is commonly referred to as: -
....ANSWER ...-Vapor Density
The maximum hose length allowed by NIOSH when using an airline hose respirator is
______ feet. - ....ANSWER ...-300
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
, If a product with a vapor density of 1.6 escaped from its container, you would expect the
product to: - ....ANSWER ...-Collect in low-lying areas
Which resources are available for determining the concentrations of a released hazardous
material in an endangered area? - ....ANSWER ...-Monitoring equipment should be
utilized, keeping in mind that Haz-Mat technicians are needed to operate this
equipment.
Chemicals that ignite when combined create a(n) __________ reaction. -
....ANSWER ...-Exothermic
The eight-step process recommended for assessing a hazardous materials incident
includes: - ....ANSWER ...-Hazard and Risk evaluation
What would be the likely result of allowing a contaminated individual to leave the hot
zone without being decontaminated? - ....ANSWER ...-The contaminates would
likely be transferred to other personal and equipment resulting in secondary
contamination.
When dealing with a Level III incident, it is expected that evacuation of people will
cover an area of. - ....ANSWER ...-Large scale evacuation.
The minimum temperature to which a fuel in air must be heated to initiate self-sustained
combustion without initiation from an independent ignition source is best described as: -
....ANSWER ...-Auto-ignition Temperature
Which DOT Hazard Class covers nerve agents used in chemical warfare? -
....ANSWER ...-DOT 6.1
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
