Hazmat Ops Chapters 4-16
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
A gas or vapor concentration in air will burn or explode if ignited and if it is
within its _____ range.
Option A
flammable or explosive
Option B
boiling and freezing
Option C
neutral pH
Option D
toxic concentration - Answer✔✔-- flammable or explosive
Where can a responder expect to find information on a material's appearance
and odor as well as its potential behavior?
,Option A
Safety data sheet (SDS)
Option B
Chemical inventory list
Option C
Emergency Response Guidebook (ERG)
Option D
Preincident survey - Answer✔✔-- Safety data sheet (SDS)
Where can you find contact numbers for emergency response communication
services such as CHEMTREC®?
Option A
Engraved on railway cars
Option B
On the transportation placard
Option C
Stenciled on the walls of fixed facilities
Option D
Inside back cover of the ERG - Answer✔✔-- Inside back cover of the ERG
The minimum temperature at which a liquid or volatile solid gives off sufficient
vapors to form an ignitable mixture with air near its surface is known as the
____ point.
Option A
explosive
Option B
,boiling
Option C
flash
Option D
fire - Answer✔✔-- flash
The reducing agent in the reactivity triangle acts as the _____ for the reaction.
Option A
catalyst
Option B
oxygen
Option C
fuel
Option D
energy - Answer✔✔-- fuel
Organic substances and microorganisms that pose a threat to the health of
humans and other living organisms are considered _____ hazards.
Option A
chemical
Option B
biological
Option C
physical
Option D
, radiological - Answer✔✔-- biological
What is the general term for when a container is stressed beyond its limits of
recovery and releases its contents?
Option A
Breach
Option B
Stress
Option C
Exposure
Option D
Engulfment - Answer✔✔-- Breach
The specific gravity of most flammable liquids is less than one, which means
they will ____ in or on water.
Option A
float
Option B
exsanguinate
Option C
disintegrate
Option D
sink - Answer✔✔-- float
What is it called when a hazardous material has entered or potentially entered
the body?
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
A gas or vapor concentration in air will burn or explode if ignited and if it is
within its _____ range.
Option A
flammable or explosive
Option B
boiling and freezing
Option C
neutral pH
Option D
toxic concentration - Answer✔✔-- flammable or explosive
Where can a responder expect to find information on a material's appearance
and odor as well as its potential behavior?
,Option A
Safety data sheet (SDS)
Option B
Chemical inventory list
Option C
Emergency Response Guidebook (ERG)
Option D
Preincident survey - Answer✔✔-- Safety data sheet (SDS)
Where can you find contact numbers for emergency response communication
services such as CHEMTREC®?
Option A
Engraved on railway cars
Option B
On the transportation placard
Option C
Stenciled on the walls of fixed facilities
Option D
Inside back cover of the ERG - Answer✔✔-- Inside back cover of the ERG
The minimum temperature at which a liquid or volatile solid gives off sufficient
vapors to form an ignitable mixture with air near its surface is known as the
____ point.
Option A
explosive
Option B
,boiling
Option C
flash
Option D
fire - Answer✔✔-- flash
The reducing agent in the reactivity triangle acts as the _____ for the reaction.
Option A
catalyst
Option B
oxygen
Option C
fuel
Option D
energy - Answer✔✔-- fuel
Organic substances and microorganisms that pose a threat to the health of
humans and other living organisms are considered _____ hazards.
Option A
chemical
Option B
biological
Option C
physical
Option D
, radiological - Answer✔✔-- biological
What is the general term for when a container is stressed beyond its limits of
recovery and releases its contents?
Option A
Breach
Option B
Stress
Option C
Exposure
Option D
Engulfment - Answer✔✔-- Breach
The specific gravity of most flammable liquids is less than one, which means
they will ____ in or on water.
Option A
float
Option B
exsanguinate
Option C
disintegrate
Option D
sink - Answer✔✔-- float
What is it called when a hazardous material has entered or potentially entered
the body?
