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HAZWOPER FINAL EXAM 2025 | ALL QUESTIONS
AND CORRECT ANSWERS | VERIFIED ANSWERS |
LATEST VERSION | ALREADY GRADED A+ (JUST
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Which of the following forms of radiation will generally not penetrate intact skin but can be a serious hazard if ingested or inhaled? ---------CORRECT ANSWER-----------------Alpha What can you do to protect yourself from Gamma ionizing radiation exposure? ---------CORRECT ANSWER-----------------Limit your time of exposure to radiation Roentgen Equivalent Man (REM) takes into account the energy absorbed (dose) and the biological effect on the body due to different types of radiation. ---------CORRECT ANSWER-----------------True Iological effects of acute radiation exposure may include which of the following? ---------CORRECT ANSWER-----------------All answers are correct Chronic effects of radiation exposure include which of the following? --------- CORRECT ANSWER-----------------Cancer and cataracts The acronym ALARA stands for which of the following? ---------CORRECT ANSWER-----------------As low as reasonably achievable
Three basic radiation principles used to reduce exposure to ionizing radiation are ____. ---------CORRECT ANSWER-----------------Time, distance, shielding Radiation detection and monitoring is crucial for all of the reasons below except which one? ---------CORRECT ANSWER-----------------Radiation can be detected by the human nose (order) Some atoms in nature occasionally split (fission) and give off radiation ------ ---CORRECT ANSWER-----------------True Radiation can be detected and measured with a great deal of precision. ---- -----CORRECT ANSWER-----------------True A sheet of paper can block what type of radiation? ---------CORRECT ANSWER-----------------Alpha Protection from radiation does not include which of the following? --------- CORRECT ANSWER-----------------Isotope half-life Gamma and X radiation have a LET or QF of 1. ---------CORRECT ANSWER-----------------True Alpha particles have a QF of 20 and are considered as sever external radiation hazards. ---------CORRECT ANSWER-----------------False
The class of respiratory protection that is not recommended for use in hazardous atmosphere containing less that 19.5% oxygen is which of the following? ---------CORRECT ANSWER-----------------Air-purifying respirator You must have an emergency pack of air when wearing a supplied air respirator ---------CORRECT ANSWER-----------------True Select the best answer relating to atmosphere supplied respirators. --------- CORRECT ANSWER-----------------Atmosphere supplied respirators are the best protection against IDLH respiratory hazards What three variables must be identified before air-purifying respirators can be considered for use? ---------CORRECT ANSWER-----------------Identity of hazard, hazard concentration, oxygen content In an atmosphere that is immediately dangerous to life and health, the best respiratory protection is which of the following?! ---------CORRECT ANSWER-----------------Self-contained, positive pressure demand breathing apparatus Only your lungs can be damaged when breathing toxic chemicals. --------- CORRECT ANSWER-----------------False It is acceptable to wear a dust mask as protection against spray paint vapors. ---------CORRECT ANSWER-----------------False
The primary purpose of quantitative or qualitative fit testing is to identify the specific model, make, and size of respirator that best suites each person. -- -------CORRECT ANSWER-----------------False A person's eyes are better protected by which of the following respirators? - --------CORRECT ANSWER-----------------Full face Methanol has a TLV of 200 ppm; the odor of methanol is not detected until a concentration of 2000 ppm in air is reached. For protection, the best respirator to wear is which of the following? ---------CORRECT ANSWER---- -------------A SAR with escape bottle It is permissible to modify a respirator to make a different brand of cartridge to fit the respirator. ---------CORRECT ANSWER-----------------False Select the incorrect statement relating to respirators. ---------CORRECT ANSWER-----------------You must wear contact lenses instead of glasses when wearing any type of respirator MUC stands for which of the following? ---------CORRECT ANSWER--------- --------Maximum use concentration A respirator fit check consisting of covering the cartridge openings and inhaling for 5 to 10 seconds to feel the mask pulling snugly against the face is called a negative pressure fit check. ---------CORRECT ANSWER---------- -------True
Operations that employ workers who must comply with the 29 CFR 1910.120 regulations do not include which of the following? Correct --------- CORRECT ANSWER-----------------Risk analysis of hazardous chemical releases Which governmental body is responsible for safety at a hazardous waste site? ---------CORRECT ANSWER-----------------OSHA Complete enclosure of a sandblast operation is an example of _____. ------- --CORRECT ANSWER-----------------Engineering controls Is the use of "common sense" a good practice to protect a worker from exposure to hazards? ---------CORRECT ANSWER-----------------False Using steam cleaning instead of solvent-based cleaning is an example of ____. ---------CORRECT ANSWER-----------------Engineering Wearing a respirator to remove toxic vapors from your breathing air is an example of which of the following? ---------CORRECT ANSWER--------------- --PPE Which of the following is not an element of the Hazard Communication Standard? ---------CORRECT ANSWER-----------------Respirator training
Which Act has the primary responsibility for hazardous waste? --------- CORRECT ANSWER-----------------Resource Conservation and Recovery Act (RCRA) A vertical standard is specific to a particular industry ---------CORRECT ANSWER-----------------True By identifying lines of authority, communication, and coordination among personnel and managers, the ____ is being defined according to the General Health and Safety Program (HASP). ---------CORRECT ANSWER-- ---------------Organizational Structure The OSHA Hazardous Waste Standard requires that new employees at hazardous waste sites receive which of the following training? --------- CORRECT ANSWER----------------- 40 - hour training course on health and safety Through planning, potential hazards may be anticipated and steps may be taken to reduce the risk of harm to workers, the public, and the environment using which of the following? ---------CORRECT ANSWER------ -----------Safety and Health Program Hazardous Waste Operations and Emergency Response training is required for a person working at a hazardous waste at a Treatment, Storage, Disposal Facility. ---------CORRECT ANSWER-----------------True
When should monitoring be conducted at a hazardous waste site? --------- CORRECT ANSWER-----------------Upon initial entry to identify and IDLH conditions Atmospheric monitoring is only required after the workers have entered the site. ---------CORRECT ANSWER-----------------False A change in weather will not affect the hazards at a work site. --------- CORRECT ANSWER-----------------False When locating a Command post, which of the following can have the greatest impact on employee safety? ---------CORRECT ANSWER------------ -----Wind direction The Site Health and Safety Plan should contain contingency plans for unpredictable events such as fire or physical injury. ---------CORRECT ANSWER-----------------True After the plan for a hazardous waste site is implemented, it should be periodically examined to reflect any site condition changes. --------- CORRECT ANSWER-----------------True The primary purpose of a site health and safety plan is which of the following? ---------CORRECT ANSWER-----------------To ensure the safety and health of workers and responders
Emergencies are not effected by which of the following? ---------CORRECT ANSWER-----------------Location of the laboratory It is the responsibility of the personnel involved at the site to comply with the requirements of the health and safety plan. ---------CORRECT ANSWER-----------------True The best policy is that instructions should be written. ---------CORRECT ANSWER-----------------True Identify the correct order that a site characterization should be conducted;
- Conduct an on-site survey, 2. Conduct an off-site survey, 3. Implement programs to ensure the safety of a hazardous waste employee after an on- site evaluation. ---------CORRECT ANSWER-----------------2,1, 3 The results of air monitoring and sampling pertaining to an employee's job___.! ---------CORRECT ANSWER-----------------Must be made available to the employee A hazardous waste site plan should be ____ in order to make sure the procedures will work in an emergency. ---------CORRECT ANSWER---------- -------Practiced At a minimum, emergency response plans for handling and reporting emergency incidents should include the following. Which one is the most important when reporting an emergency due to a hazardous chemical spill?
Legally enforceable exposure levels are established by____. --------- CORRECT ANSWER-----------------OSHA (Occupational Safety and Health Administration) TLV is an acronym for ____. ---------CORRECT ANSWER----------------- Threshold limit value The most common route of entry for exposure to toxic materials in the work place is?! ---------CORRECT ANSWER-----------------Inhalation Which of the factors listed, that affect the response of humans and living organisms to toxic chemicals, is time dependent? ---------CORRECT ANSWER-----------------Dose Acute exposure symptoms may include which of the following? --------- CORRECT ANSWER-----------------All answers are correct
. A toxic effect described as a severe injury by a one-time short exposure to a harmful chemical is known as ---------CORRECT ANSWER----------------- Acute An additive effect is defined as which of the following? ---------CORRECT ANSWER-----------------The addition of toxic chemical effects in producing a biological effect
A Synergistic Effect is defined as which of the following? ---------CORRECT ANSWER-----------------The exposure to two different toxic chemicals that produces a more severe effect than simply doubling the dose of wither one alone A Potentiation Effect is defined as which of the following? --------- CORRECT ANSWER-----------------In some cases, a chemical without any known toxic effect may act together with a known toxic substance to make the toxic substance even more potent and more dangerous An Antagonism Effect is defined as which of the following? --------- CORRECT ANSWER-----------------The interaction of two toxic chemicals may be such that the effect produced is actually less than would be expected Which of the following is common to airborne hazards? ---------CORRECT ANSWER-----------------The normally enter the body through breathing A chemical that deprives the victim's tissues of oxygen is which of the following? ---------CORRECT ANSWER-----------------Asphyxiate Which exposure route is most likely to cause the immediate response of a burned esophagus to appear? ---------CORRECT ANSWER----------------- Ingestion Ceiling Limit (C) is the level that should never be exceeded in the workplace without correct procedures and protective equipment. --------- CORRECT ANSWER-----------------True
A Target organ chemical can cause which of the following? --------- CORRECT ANSWER-----------------Liver damage A Sensitizer can cause which of the following? ---------CORRECT ANSWER-----------------Allergic-like responses A Carcinogen can cause which of the following? ---------CORRECT ANSWER-----------------Cancer A Teratogen can cause which of the following?! ---------CORRECT ANSWER-----------------Damage fetus development A Mutagen can cause which of the following? ---------CORRECT ANSWER- ----------------Damage to Genes in sperm and egg cells
- The NFPA 704-M system (hazard diamonds) identifies the hazards of materials in terms of____ excluding the 4th category. ---------CORRECT ANSWER-----------------Reactivity, health and flammability A hazard is defined as which of the following? ---------CORRECT ANSWER-----------------The capability of something causing you harm Risk can be defined as which of the following? ---------CORRECT ANSWER-----------------The probability and severity of a hazard
The white section of the NFPA 704-M hazard diamond provides information for which of the following? ---------CORRECT ANSWER-----------------Special hazards The blue section of the NFPA sign designates which hazard?! --------- CORRECT ANSWER-----------------Health The number "4" in the red section of the NFPA sign indicates the material is which of the following? ---------CORRECT ANSWER-----------------Extremely flammable The yellow section of the NFPA sign indicates the material is which of the following? ---------CORRECT ANSWER-----------------Reactive Everyone working in an area that has hazardous substances must recognize and understand the potential health safety hazards involved in their work assignments. Training is required and documentation of that training is which of the following? ---------CORRECT ANSWER----------------- Mandatory Being struck by an object or moving machine part would be considered as which of the following?! ---------CORRECT ANSWER-----------------Kinetic / mechanical hazard Strong management commitment is a vital part of safety.! --------- CORRECT ANSWER-----------------True
Using Level C personal protective equipment includes which of the following?! ---------CORRECT ANSWER-----------------Wearing an air- purifying respirator The Level of Protection that provides the highest degree of respiratory and skin protection against gases and vapors is? ---------CORRECT ANSWER-- ---------------Level A A written comprehensive PPE program should include? ---------CORRECT ANSWER-----------------Medical monitoring, Hazard identification, Decontamination procedures Selection of chemical protective clothing will depend on the chemicals present and the tasks to be accomplished.! ---------CORRECT ANSWER---- -------------True Heat stress on the human body includes both "heat exhaustion" and "heat stroke." Which statement about "heat stroke" is true? ---------CORRECT ANSWER-----------------Heat stroke is a life-threatening emergency Over-protection and under-protection can be hazardous and should be considered carefully when selecting chemical protective clothing. --------- CORRECT ANSWER-----------------True Selection of a chemical resistant glove is intended to protect the wearer ___. ---------CORRECT ANSWER-----------------Against specific chemicals
Chemical reactions can degrade some protective clothing. --------- CORRECT ANSWER-----------------True Which of the following factors regarding PPE utilization can the wearer directly control? ---------CORRECT ANSWER-----------------Type of protective ensemble selected Wearing Chemical Protective Clothing (CPC) prevents what route of exposure to hazardous materials? ---------CORRECT ANSWER----------------
- Skin Heat Stress is a concern for workers only in the summer months --------- CORRECT ANSWER-----------------False Which of the following is least likely to make heat stress worse?! --------- CORRECT ANSWER-----------------High wind velocity Knowing the specific hazards involved in the job is important even though you are wearing protective clothing.! ---------CORRECT ANSWER------------- ----True Air supply consumption when using a SCBA depends on which of the following? ---------CORRECT ANSWER-----------------Fitness, body size, work rate, breathing pattern
