1|Page
HAZWOOPER 40 FINAL EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
There are many potential causes of explosions and fires at
hazardous waste sites. Which of the following is a good example?
- ANSWER-Chemical reactions that produce explosion, fire, or
heat
What do we know about oxygen? - ANSWER-Oxygen is heavier
than air
Oxygen is a strong oxidant which generates fire hazards
If oxygen is present there must be NO uncontrolled contact with
flammables
Concentrations of 19.5% or lower are deficient
Oxygen deficiency may result from - ANSWER-The displacement
of oxygen by another gas
the consumption of oxygen by a chemical reaction
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What is the lowest concentration of oxygen allowed? - ANSWER-
16%
What are the three basic ways to protect yourself from radiation? -
ANSWER-Reduce time of exposure
Increase distance from exposure
Use shielding
Which radiation causes serious damage to the body? - ANSWER-
Gamma
Background levels of radiation are - ANSWER-0.01-0.02 mrem/hr
Which radiation causes harmful burns to the skin? - ANSWER-
Beta
Protection for vertical drops: - ANSWER-Guardrails, safety net
systems, and personal fall arrest systems
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It is better to use fall prevention systems than fall protection
systems because - ANSWER-Prevention systems provide more
positive safety means
What are the three important elements to prevent heat stress? -
ANSWER-Water Rest Shade
Symptoms of heat illness - ANSWER-Heat rash
fainting
heat cramps
heat exhaustion
heat stroke
Which symptom of heat illness is the most dangerous? -
ANSWER-Heat stroke
OSHA requires employers must administer hearing conservation
programs at a sound level of - ANSWER-85 dBA
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If employees are subjected to noise exceeding an 8 hours time
weighted average sound level of _____ dBA feasible
administrative controls must be utilized - ANSWER-90
What are the common effects of ergonomic injuries? - ANSWER-
Pain, aches, numbness, tingling, restricted movement
What are the primary causes of musculoskeletal disorders and
other ergonomic injury? - ANSWER-Excessive repetitive motions
Excessive or sustained force
Sustained or awkward body positions
What are work related ergonomic type injuries called? -
ANSWER-Musculoskeletal disorders
Biohazard agents include - ANSWER-Bacteria, viruses, and fungi
Rickettsia and microorganisms transmitted by fleas
HAZWOOPER 40 FINAL EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
There are many potential causes of explosions and fires at
hazardous waste sites. Which of the following is a good example?
- ANSWER-Chemical reactions that produce explosion, fire, or
heat
What do we know about oxygen? - ANSWER-Oxygen is heavier
than air
Oxygen is a strong oxidant which generates fire hazards
If oxygen is present there must be NO uncontrolled contact with
flammables
Concentrations of 19.5% or lower are deficient
Oxygen deficiency may result from - ANSWER-The displacement
of oxygen by another gas
the consumption of oxygen by a chemical reaction
,2|Page
What is the lowest concentration of oxygen allowed? - ANSWER-
16%
What are the three basic ways to protect yourself from radiation? -
ANSWER-Reduce time of exposure
Increase distance from exposure
Use shielding
Which radiation causes serious damage to the body? - ANSWER-
Gamma
Background levels of radiation are - ANSWER-0.01-0.02 mrem/hr
Which radiation causes harmful burns to the skin? - ANSWER-
Beta
Protection for vertical drops: - ANSWER-Guardrails, safety net
systems, and personal fall arrest systems
,3|Page
It is better to use fall prevention systems than fall protection
systems because - ANSWER-Prevention systems provide more
positive safety means
What are the three important elements to prevent heat stress? -
ANSWER-Water Rest Shade
Symptoms of heat illness - ANSWER-Heat rash
fainting
heat cramps
heat exhaustion
heat stroke
Which symptom of heat illness is the most dangerous? -
ANSWER-Heat stroke
OSHA requires employers must administer hearing conservation
programs at a sound level of - ANSWER-85 dBA
, 4|Page
If employees are subjected to noise exceeding an 8 hours time
weighted average sound level of _____ dBA feasible
administrative controls must be utilized - ANSWER-90
What are the common effects of ergonomic injuries? - ANSWER-
Pain, aches, numbness, tingling, restricted movement
What are the primary causes of musculoskeletal disorders and
other ergonomic injury? - ANSWER-Excessive repetitive motions
Excessive or sustained force
Sustained or awkward body positions
What are work related ergonomic type injuries called? -
ANSWER-Musculoskeletal disorders
Biohazard agents include - ANSWER-Bacteria, viruses, and fungi
Rickettsia and microorganisms transmitted by fleas
