HAZWOPER 8 HOUR REFRESHER TEST
EXAM 2025 QUESTIONS AND ANSWERS
Which of the following is NOT a likely cause of a hazardous substance accident?
A
Broken or rusted pipes
B
Following standard operating procedures
C
Faulty valves or transfer hoses
D
Leaking tank - ANS b
What is a hazardous substance?
A
Any substance defined under section 101(14) of CERCLA
B
Any biological agent and other disease-causing agent that could cause death, disease,
behavioral abnormalities, cancer, genetic mutation, physiological malfunctions (including
malfunctions in reproduction), or physical deformations in exposed people or their offspring
C
1
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, Any substance listed by the U.S. Department of Transportation as a hazardous material under
49 CFR 172.101 and its appendices
D
Hazardous waste
E
All of the above - ANS e
All hazardous substances are hazardous wastes.
A
True
B
False - ANS b
The floodwaters of Hurricane Katrina were polluted with which of the following hazardous
substances?
A
Petroleum
B
Dioxin
C
Mercury
D
Pesticides
E
All of the above - ANS e
The law that requires employers to provide a workplace that is "free from recognized hazards
2
Page
likely to cause death or serious physical harm" is known as:
@COPYRIGHT @THEBRIGHT 2025/2026
, A
OSH Act
B
RCRA
C
HSWA
D
SARA - ANS a
Which of the following acts was passed in 1976 to protect human health and the environment
from the potential hazards of waste disposal?
A
HSWA
B
RCRA
C
OSH Act
D
CERCLA - ANS b
Which regulation deals with cleaning up inactive and abandoned hazardous waste sites?
A
Solid Waste Disposal Act
B
Clean Air Act
C
3
CERCLA
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, D
Clean Water Act - ANS c
The U.S. EPA enforces the HAZWOPER Standard.
A
True
B
False - ANS b
Which of the following standards does not usually apply to HAZWOPER situations?
A
Subpart O - Machinery and Machine Guarding
B
Subpart H - Hazardous Materials
C
Subpart I - Personal Protective Equipment
D
Subpart Z - Toxic and Hazardous Substances - ANS a
The HAZWOPER Standard applies to:
A
Cleanup operations involving hazardous substances that are conducted at uncontrolled
hazardous waste sites
B
Corrective actions involving cleanup operations at sites covered by RCRA
C
4
Emergency response operations for releases or substantial threats of release of hazardous
Page
substances regardless of location
@COPYRIGHT @THEBRIGHT 2025/2026
EXAM 2025 QUESTIONS AND ANSWERS
Which of the following is NOT a likely cause of a hazardous substance accident?
A
Broken or rusted pipes
B
Following standard operating procedures
C
Faulty valves or transfer hoses
D
Leaking tank - ANS b
What is a hazardous substance?
A
Any substance defined under section 101(14) of CERCLA
B
Any biological agent and other disease-causing agent that could cause death, disease,
behavioral abnormalities, cancer, genetic mutation, physiological malfunctions (including
malfunctions in reproduction), or physical deformations in exposed people or their offspring
C
1
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, Any substance listed by the U.S. Department of Transportation as a hazardous material under
49 CFR 172.101 and its appendices
D
Hazardous waste
E
All of the above - ANS e
All hazardous substances are hazardous wastes.
A
True
B
False - ANS b
The floodwaters of Hurricane Katrina were polluted with which of the following hazardous
substances?
A
Petroleum
B
Dioxin
C
Mercury
D
Pesticides
E
All of the above - ANS e
The law that requires employers to provide a workplace that is "free from recognized hazards
2
Page
likely to cause death or serious physical harm" is known as:
@COPYRIGHT @THEBRIGHT 2025/2026
, A
OSH Act
B
RCRA
C
HSWA
D
SARA - ANS a
Which of the following acts was passed in 1976 to protect human health and the environment
from the potential hazards of waste disposal?
A
HSWA
B
RCRA
C
OSH Act
D
CERCLA - ANS b
Which regulation deals with cleaning up inactive and abandoned hazardous waste sites?
A
Solid Waste Disposal Act
B
Clean Air Act
C
3
CERCLA
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, D
Clean Water Act - ANS c
The U.S. EPA enforces the HAZWOPER Standard.
A
True
B
False - ANS b
Which of the following standards does not usually apply to HAZWOPER situations?
A
Subpart O - Machinery and Machine Guarding
B
Subpart H - Hazardous Materials
C
Subpart I - Personal Protective Equipment
D
Subpart Z - Toxic and Hazardous Substances - ANS a
The HAZWOPER Standard applies to:
A
Cleanup operations involving hazardous substances that are conducted at uncontrolled
hazardous waste sites
B
Corrective actions involving cleanup operations at sites covered by RCRA
C
4
Emergency response operations for releases or substantial threats of release of hazardous
Page
substances regardless of location
@COPYRIGHT @THEBRIGHT 2025/2026
