HAZWOPER TEST PAPER 2026 QUESTIONS AND
ANSWERS RATED A+
✔✔Acids and alkaline caustic liquids are examples of:
A
Corrosives
B
Flammables and explosives
C
Oxidizers
D
Pyrophoric materials - ✔✔a
✔✔Which physical property affects the ease with which a fuel can be ignited?
A
Flashpoint
B
Ignition temperature
C
Flammable limits
D
Specific gravity
E
Boiling point
F
All of the above - ✔✔f
✔✔Organic peroxides are very stable chemicals.
A
True
,B
False - ✔✔b
✔✔Which of the following is a pyrophoric material?
A
Phosphorus
B
Nitric acid
C
Formaldehyde
D
Sulfur - ✔✔a
✔✔Oxidizers should never be stored near fuels.
A
True
B
False - ✔✔a
✔✔Substances that restrict or prevent the oxygenation of the blood are called:
A
Oxidizers
B
Oxygenators
C
Asphyxiants
D
Reactors - ✔✔c
✔✔Which of the following is NOT a source of radiation?
A
Gamma rays
B
X-rays
C
Radio waves
D
Neutrons - ✔✔c
,✔✔A hazardous waste is a waste with a chemical composition or other properties that
make it capable of causing illness, death or some other harm to humans and other life
forms when mismanaged or released into the environment.
A
True
B
False - ✔✔a
✔✔Relying on your senses will always alert you to the presence of a hazard.
A
True
B
False - ✔✔b
✔✔DOT labels and placards are:
A
Color-coded
B
Word-coded
C
Symbol-coded
D
Number-coded
E
All of the above - ✔✔e
✔✔A green DOT placard indicates a non-flammable hazard.
A
True
B
False - ✔✔a
✔✔There are 11 different DOT hazard classes.
A
True
B
False - ✔✔b
✔✔A low-pressure chemical carrier is usually:
, A
An oval cylinder
B
Circular in diameter with reinforcing exterior stiffening rings
C
A round cylinder
D
Used for carrying cryogenic materials - ✔✔c
✔✔Pressurized tank cars usually carry flammable and nonflammable gases and
poisons.
A
True
B
False - ✔✔a
✔✔A sign that a hazard may be present is:
A
Seeing a spill or release
B
Smelling an unusual odor
C
Hearing a release or process alarm
D
Witnessing a fire or explosion
E
Hearing a warning signal
F
All of the above - ✔✔f
✔✔Which of the following elements of a risk assessment may be impossible to
determine?
A
The source and size of the spill or release
B
The immediate effects of the spill or release
C
Characteristics of the scene
D
Preliminary identification of the material
E
Potential hazards - ✔✔not b, not c, not a
ANSWERS RATED A+
✔✔Acids and alkaline caustic liquids are examples of:
A
Corrosives
B
Flammables and explosives
C
Oxidizers
D
Pyrophoric materials - ✔✔a
✔✔Which physical property affects the ease with which a fuel can be ignited?
A
Flashpoint
B
Ignition temperature
C
Flammable limits
D
Specific gravity
E
Boiling point
F
All of the above - ✔✔f
✔✔Organic peroxides are very stable chemicals.
A
True
,B
False - ✔✔b
✔✔Which of the following is a pyrophoric material?
A
Phosphorus
B
Nitric acid
C
Formaldehyde
D
Sulfur - ✔✔a
✔✔Oxidizers should never be stored near fuels.
A
True
B
False - ✔✔a
✔✔Substances that restrict or prevent the oxygenation of the blood are called:
A
Oxidizers
B
Oxygenators
C
Asphyxiants
D
Reactors - ✔✔c
✔✔Which of the following is NOT a source of radiation?
A
Gamma rays
B
X-rays
C
Radio waves
D
Neutrons - ✔✔c
,✔✔A hazardous waste is a waste with a chemical composition or other properties that
make it capable of causing illness, death or some other harm to humans and other life
forms when mismanaged or released into the environment.
A
True
B
False - ✔✔a
✔✔Relying on your senses will always alert you to the presence of a hazard.
A
True
B
False - ✔✔b
✔✔DOT labels and placards are:
A
Color-coded
B
Word-coded
C
Symbol-coded
D
Number-coded
E
All of the above - ✔✔e
✔✔A green DOT placard indicates a non-flammable hazard.
A
True
B
False - ✔✔a
✔✔There are 11 different DOT hazard classes.
A
True
B
False - ✔✔b
✔✔A low-pressure chemical carrier is usually:
, A
An oval cylinder
B
Circular in diameter with reinforcing exterior stiffening rings
C
A round cylinder
D
Used for carrying cryogenic materials - ✔✔c
✔✔Pressurized tank cars usually carry flammable and nonflammable gases and
poisons.
A
True
B
False - ✔✔a
✔✔A sign that a hazard may be present is:
A
Seeing a spill or release
B
Smelling an unusual odor
C
Hearing a release or process alarm
D
Witnessing a fire or explosion
E
Hearing a warning signal
F
All of the above - ✔✔f
✔✔Which of the following elements of a risk assessment may be impossible to
determine?
A
The source and size of the spill or release
B
The immediate effects of the spill or release
C
Characteristics of the scene
D
Preliminary identification of the material
E
Potential hazards - ✔✔not b, not c, not a
