HAZWOPER 40 FINAL EXAM AND PRACTICE EXAM
NEWEST 2026 TEST BANK| HAZWOPER 40 FINAL
EXAM REVIEW WITH COMPLETE 350 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
Which OSHA regulation specifically covers hazardous waste operations
and emergency response?
a) 29 CFR 1910.120
b) 29 CFR 1910.134
c) 29 CFR 1910.146
d) 29 CFR 1910.147 - Correct Answer - 29 CFR 1910.120
29 CFR 1910.120 is the OSHA Hazardous Waste Operations and
Emergency Response (HAZWOPER) standard.
A hazardous waste technician is selecting PPE for a chemical spill. The
Safety Data Sheet (SDS) indicates the chemical can be absorbed through
the skin. Which PPE is most critical?
a) Hearing protection
b) Chemical-resistant gloves and protective clothing
c) Steel-toe boots only
d) Dust mask - Correct Answer - Chemical-resistant gloves and
protective clothing
Skin absorption hazards require PPE that prevents chemical contact with
the skin.
pg. 1
,A worker notices dizziness, headache, and nausea while wearing
respiratory protection inside a contaminated area. What is the safest
action?
a) Remove the respirator immediately inside the area
b) Continue working until the task is complete
c) Leave the area and report symptoms
d) Drink water and continue working - Correct Answer - Leave the area
and report symptoms
Symptoms may indicate exposure, oxygen deficiency, or respirator
failure. Workers must exit safely and notify supervision.
The main purpose of a site safety and health plan (SSHP) is to:
a) Document employee vacation schedules
b) Identify hazards and establish protective procedures
c) Replace OSHA regulations
d) Eliminate the need for PPE - Correct Answer - Identify hazards and
establish protective procedures
The SSHP outlines site hazards, controls, PPE requirements, emergency
procedures, and safe work practices.
What is the minimum HAZWOPER training requirement for workers
performing hazardous waste operations?
a) 8 hours
b) 24 hours
c) 40 hours
d) 80 hours - Correct Answer - 40 hours
pg. 2
,Workers involved in hazardous waste site operations generally require
40 hours of initial training plus supervised field experience.
A worker removes contaminated PPE after leaving a hazardous area.
What process prevents spreading contaminants?
a) Ventilation
b) Decontamination
c) Calibration
d) Isolation - Correct Answer - Decontamination
Decontamination removes or neutralizes hazardous substances from
people, equipment, and PPE to prevent exposure spread.
A(n) ________ is the airborne concentration of a material to which
nearly all individuals may be repeatedly expose without adverse health
effects.
a) Chemical exposure
b) Sensitizer threshold
c) Exposure limit
d) Irritant level - Correct Answer - Exposure limit
When a chemical with no known toxic effects acts together with a
known toxic substance to make the combined toxic substance even more
potent, this is called ________ interaction.
a) Additive
b) Synergistic
c) Potentiation
pg. 3
, d) Antagonism - Correct Answer - Potentiation
An instance where a chemical without any known toxic effect acts
together with a known toxic substance to make the toxic substance even
more potent and dangerous is known as:
a) Antagonism effect
b) Synergistic effect
c) Potentiation effect
d) Additive effect - Correct Answer - Synergistic effect
Workplace exposure concentration recommended by NIOSH for
declaration by OSHA has an acceptable amount is called a(n) ________.
a) PEL
b) TLV
c) REL
d) IDLH - Correct Answer – REL
A HAZWOPER worker is assigned to enter an area where the
contaminant concentration is unknown and there is a possibility of
oxygen deficiency. Which respiratory protection is most appropriate?
a) N95 filtering facepiece respirator
b) Half-mask air-purifying respirator
c) Self-contained breathing apparatus (SCBA)
d) Surgical mask - Correct Answer - Self-contained breathing apparatus
(SCBA)
pg. 4
NEWEST 2026 TEST BANK| HAZWOPER 40 FINAL
EXAM REVIEW WITH COMPLETE 350 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
Which OSHA regulation specifically covers hazardous waste operations
and emergency response?
a) 29 CFR 1910.120
b) 29 CFR 1910.134
c) 29 CFR 1910.146
d) 29 CFR 1910.147 - Correct Answer - 29 CFR 1910.120
29 CFR 1910.120 is the OSHA Hazardous Waste Operations and
Emergency Response (HAZWOPER) standard.
A hazardous waste technician is selecting PPE for a chemical spill. The
Safety Data Sheet (SDS) indicates the chemical can be absorbed through
the skin. Which PPE is most critical?
a) Hearing protection
b) Chemical-resistant gloves and protective clothing
c) Steel-toe boots only
d) Dust mask - Correct Answer - Chemical-resistant gloves and
protective clothing
Skin absorption hazards require PPE that prevents chemical contact with
the skin.
pg. 1
,A worker notices dizziness, headache, and nausea while wearing
respiratory protection inside a contaminated area. What is the safest
action?
a) Remove the respirator immediately inside the area
b) Continue working until the task is complete
c) Leave the area and report symptoms
d) Drink water and continue working - Correct Answer - Leave the area
and report symptoms
Symptoms may indicate exposure, oxygen deficiency, or respirator
failure. Workers must exit safely and notify supervision.
The main purpose of a site safety and health plan (SSHP) is to:
a) Document employee vacation schedules
b) Identify hazards and establish protective procedures
c) Replace OSHA regulations
d) Eliminate the need for PPE - Correct Answer - Identify hazards and
establish protective procedures
The SSHP outlines site hazards, controls, PPE requirements, emergency
procedures, and safe work practices.
What is the minimum HAZWOPER training requirement for workers
performing hazardous waste operations?
a) 8 hours
b) 24 hours
c) 40 hours
d) 80 hours - Correct Answer - 40 hours
pg. 2
,Workers involved in hazardous waste site operations generally require
40 hours of initial training plus supervised field experience.
A worker removes contaminated PPE after leaving a hazardous area.
What process prevents spreading contaminants?
a) Ventilation
b) Decontamination
c) Calibration
d) Isolation - Correct Answer - Decontamination
Decontamination removes or neutralizes hazardous substances from
people, equipment, and PPE to prevent exposure spread.
A(n) ________ is the airborne concentration of a material to which
nearly all individuals may be repeatedly expose without adverse health
effects.
a) Chemical exposure
b) Sensitizer threshold
c) Exposure limit
d) Irritant level - Correct Answer - Exposure limit
When a chemical with no known toxic effects acts together with a
known toxic substance to make the combined toxic substance even more
potent, this is called ________ interaction.
a) Additive
b) Synergistic
c) Potentiation
pg. 3
, d) Antagonism - Correct Answer - Potentiation
An instance where a chemical without any known toxic effect acts
together with a known toxic substance to make the toxic substance even
more potent and dangerous is known as:
a) Antagonism effect
b) Synergistic effect
c) Potentiation effect
d) Additive effect - Correct Answer - Synergistic effect
Workplace exposure concentration recommended by NIOSH for
declaration by OSHA has an acceptable amount is called a(n) ________.
a) PEL
b) TLV
c) REL
d) IDLH - Correct Answer – REL
A HAZWOPER worker is assigned to enter an area where the
contaminant concentration is unknown and there is a possibility of
oxygen deficiency. Which respiratory protection is most appropriate?
a) N95 filtering facepiece respirator
b) Half-mask air-purifying respirator
c) Self-contained breathing apparatus (SCBA)
d) Surgical mask - Correct Answer - Self-contained breathing apparatus
(SCBA)
pg. 4
