HAZWOPER 40 - FINAL EXAM (ANSWERED
100% CORRECTLY) LATEST 2026 ACTUAL
EXAM GRADED A+
What do we know about symptoms resulting from chronic
exposures? Correct Answer May not appear for several years or
decades after exposure
Usually relate to low concentrations over a long period of time
Chemical exposures are generally divided into two categories
Correct Answer acute and chronic
To protect against the hazard of fire or explosion: Correct Answer
Have qualified personnel field monitor for explosive atmospheres
and flammable vapors
Use non-sparking, explosion-proof equipment
Explosions and fires may arise spontaneously, but usually they
result from activities such as: Correct Answer Accidentally mixing
chemicals
Introducing and ignition source
Moving drums
,There are many potential causes of explosions and fires at
hazardous waste sites. Which of the following is a good example?
Correct Answer Chemical reactions that produce explosion, fire,
or heat
What do we know about oxygen? Correct 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 Correct Answer The
displacement of oxygen by another gas
the consumption of oxygen by a chemical reaction
What is the lowest concentration of oxygen allowed? Correct
Answer 16%
What are the three basic ways to protect yourself from radiation?
Correct Answer Reduce time of exposure
Increase distance from exposure
Use shielding
,Which radiation causes serious damage to the body? Correct
Answer Gamma
Background levels of radiation are Correct Answer 0.01-0.02
mrem/hr
Which radiation causes harmful burns to the skin? Correct Answer
Beta
Protection for vertical drops: Correct Answer Guardrails, safety
net systems, and personal fall arrest systems
It is better to use fall prevention systems than fall protection
systems because Correct Answer Prevention systems provide
more positive safety means
What are the three important elements to prevent heat stress?
Correct Answer Water Rest Shade
Symptoms of heat illness Correct Answer Heat rash
fainting
heat cramps
heat exhaustion
heat stroke
, Which symptom of heat illness is the most dangerous? Correct
Answer Heat stroke
OSHA requires employers must administer hearing conservation
programs at a sound level of Correct Answer 85 dBA
If employees are subjected to noise exceeding an 8 hours time
weighted average sound level of _____ dBA feasible
administrative controls must be utilized Correct Answer 90
What are the common effects of ergonomic injuries? Correct
Answer Pain, aches, numbness, tingling, restricted movement
What are the primary causes of musculoskeletal disorders and
other ergonomic injury? Correct Answer Excessive repetitive
motions
Excessive or sustained force
Sustained or awkward body positions
What are work related ergonomic type injuries called? Correct
Answer Musculoskeletal disorders
100% CORRECTLY) LATEST 2026 ACTUAL
EXAM GRADED A+
What do we know about symptoms resulting from chronic
exposures? Correct Answer May not appear for several years or
decades after exposure
Usually relate to low concentrations over a long period of time
Chemical exposures are generally divided into two categories
Correct Answer acute and chronic
To protect against the hazard of fire or explosion: Correct Answer
Have qualified personnel field monitor for explosive atmospheres
and flammable vapors
Use non-sparking, explosion-proof equipment
Explosions and fires may arise spontaneously, but usually they
result from activities such as: Correct Answer Accidentally mixing
chemicals
Introducing and ignition source
Moving drums
,There are many potential causes of explosions and fires at
hazardous waste sites. Which of the following is a good example?
Correct Answer Chemical reactions that produce explosion, fire,
or heat
What do we know about oxygen? Correct 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 Correct Answer The
displacement of oxygen by another gas
the consumption of oxygen by a chemical reaction
What is the lowest concentration of oxygen allowed? Correct
Answer 16%
What are the three basic ways to protect yourself from radiation?
Correct Answer Reduce time of exposure
Increase distance from exposure
Use shielding
,Which radiation causes serious damage to the body? Correct
Answer Gamma
Background levels of radiation are Correct Answer 0.01-0.02
mrem/hr
Which radiation causes harmful burns to the skin? Correct Answer
Beta
Protection for vertical drops: Correct Answer Guardrails, safety
net systems, and personal fall arrest systems
It is better to use fall prevention systems than fall protection
systems because Correct Answer Prevention systems provide
more positive safety means
What are the three important elements to prevent heat stress?
Correct Answer Water Rest Shade
Symptoms of heat illness Correct Answer Heat rash
fainting
heat cramps
heat exhaustion
heat stroke
, Which symptom of heat illness is the most dangerous? Correct
Answer Heat stroke
OSHA requires employers must administer hearing conservation
programs at a sound level of Correct Answer 85 dBA
If employees are subjected to noise exceeding an 8 hours time
weighted average sound level of _____ dBA feasible
administrative controls must be utilized Correct Answer 90
What are the common effects of ergonomic injuries? Correct
Answer Pain, aches, numbness, tingling, restricted movement
What are the primary causes of musculoskeletal disorders and
other ergonomic injury? Correct Answer Excessive repetitive
motions
Excessive or sustained force
Sustained or awkward body positions
What are work related ergonomic type injuries called? Correct
Answer Musculoskeletal disorders
