Hazard and risk eval challenge questions
and answers with solutions
the expression of how people perceive chemical scents. - ANSWER odor
Halogenated hydrocarbons will eventually break into more harmful component parts if they are
exposed to: - ANSWER high temp
A vesicant is a(n): - ANSWER chemical that causes severe burns to the skin, eyes, and tissue in
the respiratory tract.
Chemical reactions in which a substance absorbs heat energy are called: - ANSWER endothermic
reactions
The comparison of densities, or __________ will help you determine whether a material will
float or sink in another material. - ANSWER relative density
The relative density of a vapor compared to air is the: - ANSWER vapor density
The ___________ is the theoretical minimum concentration of odor necessary for detection in
some specified percentage of the population. - ANSWER odor threshold
All of the following statements are TRUE EXCEPT: - ANSWER irritants are sometimes used in riot
control.
B. nerve agents are chemical agents that cause skin lesions.
vesicants are sometimes called blister agents.
biological agents are living organisms of materials derived from them.
, The ___________ is the highest temperature at which a hazardous material can be held without
becoming volatile or unstable. - ANSWER Maximum Safe Storage Temperature (MSST)
A catalyst: - ANSWER can either speed up or slow down chemical reactions.
The physical property that could apply to a substance in both the solid and liquid states is: -
ANSWER specific gravity
________ is a process in which a substance passes directly from the solid state to the vapor
state without passing through the liquid state. - ANSWER Sublimation
Which hazard category relates to working in a thermal environment, such as hypothermia,
hyperthermia, and burns? - ANSWER thermal
The ___________ is the temperature at which a solid becomes a liquid. - ANSWER melting point
Chemical reactions between two or more materials that change the materials and produce heat
are called: - ANSWER exothermic reactions
Which hazard category includes materials that are susceptible to ignition? - ANSWER
Flammability
The ___________ is the temperature at which a liquid becomes a solid. - ANSWER freezing
point
________ describes the degree to which a corrosive ionizes in water. - ANSWER strength
and answers with solutions
the expression of how people perceive chemical scents. - ANSWER odor
Halogenated hydrocarbons will eventually break into more harmful component parts if they are
exposed to: - ANSWER high temp
A vesicant is a(n): - ANSWER chemical that causes severe burns to the skin, eyes, and tissue in
the respiratory tract.
Chemical reactions in which a substance absorbs heat energy are called: - ANSWER endothermic
reactions
The comparison of densities, or __________ will help you determine whether a material will
float or sink in another material. - ANSWER relative density
The relative density of a vapor compared to air is the: - ANSWER vapor density
The ___________ is the theoretical minimum concentration of odor necessary for detection in
some specified percentage of the population. - ANSWER odor threshold
All of the following statements are TRUE EXCEPT: - ANSWER irritants are sometimes used in riot
control.
B. nerve agents are chemical agents that cause skin lesions.
vesicants are sometimes called blister agents.
biological agents are living organisms of materials derived from them.
, The ___________ is the highest temperature at which a hazardous material can be held without
becoming volatile or unstable. - ANSWER Maximum Safe Storage Temperature (MSST)
A catalyst: - ANSWER can either speed up or slow down chemical reactions.
The physical property that could apply to a substance in both the solid and liquid states is: -
ANSWER specific gravity
________ is a process in which a substance passes directly from the solid state to the vapor
state without passing through the liquid state. - ANSWER Sublimation
Which hazard category relates to working in a thermal environment, such as hypothermia,
hyperthermia, and burns? - ANSWER thermal
The ___________ is the temperature at which a solid becomes a liquid. - ANSWER melting point
Chemical reactions between two or more materials that change the materials and produce heat
are called: - ANSWER exothermic reactions
Which hazard category includes materials that are susceptible to ignition? - ANSWER
Flammability
The ___________ is the temperature at which a liquid becomes a solid. - ANSWER freezing
point
________ describes the degree to which a corrosive ionizes in water. - ANSWER strength
