HAZWOPER PRACTICE EXAM Questions & Answers 100% Correct Latest Versions 2024 GRADED A+., Exams of Nursing

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HAZWOPER PRACTICE EXAM Questions

& Answers 100% Correct Latest Versions

2024 GRADED A+

Define HAZWOPER - ✔✔Hazardous Waste Operations and Emergency Response HAZWOPER regulations apply to emergency response operations only for releases and not for threats of releases - ✔✔False The primary components of the OSHA regulation applicable to the proper management of hazardous materials are... - ✔✔29 CFR Part 1910 Define RCRA - ✔✔Resource Conservation and Recovery Act What is the regulatory citation for the HAZCOM standard? - ✔✔OSHA 29 CFR 1910. Material Safety Data Sheets are now known as... - ✔✔Safety Data Sheets (SDS) HAZCOM training must be done when... - ✔✔All of the above Define GHS - ✔✔Global Harmonization System convey health, physical, and environmental hazard information, assigned to a GHS hazard class and category - ✔✔Symbols (hazard pictograms) Each must be labeled tagged or marked - ✔✔Container If a chemical has a GHS rating of 4 it is... - ✔✔Least hazardous

If a chemical has a GHS rating of 1 it is... - ✔✔Most hazardous

How many sections are there on a SDS? - ✔✔ 16 A(n) must be on hand for each hazardous chemical used. - ✔✔SDS How many mandatory sections are there on an SDS? - ✔✔ 12 SDS's must be accessible to employees during their work shift - ✔✔Readily The should specifically identify the names and organizational relationships among key personnel

• ✔✔HASP How has responsibility for overall management of the project? - ✔✔Project manager The Site Safety and Health Officer is responsible for - ✔✔Managing the health and safety program for the site Who is responsible for maintaining line-of-site at a HAZWOPER site? - ✔✔Command post supervisor The security officer is responsible for... - ✔✔Controlling facility access and egress The is responsible for planning and mobilization of the facilities - ✔✔Logistics officer consisting of field team members who complete the onsite tasks required to fulfill the work plan
• ✔✔Specialty teams The specific responsibilities of the should be stated (e.g. providing advice on methods of handling explosive materials and assisting in safely detonating or disposing of explosive materials) - ✔✔Bomb squad expert

The purpose of a site control program is to... - ✔✔All of the above Site control zones at a hazardous materials incident are established primarily... - ✔✔All of the above The level of site control needed depends on... - ✔✔All of the above The serves as a central source of information about the site and can help personnel plan and organize activities - ✔✔Site map The Safety Officer is normally found in the - ✔✔Contamination Reduction Zone or Support Zone The support zone typically has the following - ✔✔All of the above What is a Hot Line? - ✔✔A place that divides the contaminated area from all other zones The boundary between the support zone and the CRZ is called the - ✔✔Contamination control line Which of the following is not true about the support zone? - ✔✔Should be as close to the exclusion zone as possible An external communication system between onsite and offsite personnel is - ✔✔Necessary Verbal communication at a site can be by onsite background noise and the use of PPE - ✔✔Impeded Two sets of communication systems should be established: and - ✔✔Internal and external Which of the following is true about the exclusion zone? - ✔✔Eating is prohibited

What must be posted conspicuously at the entrance access control points into the CRZ and/or exclusion zone? - ✔✔Health and safety procedures In order to prevent injuries at the work site, people should be trained on - ✔✔Proper operating procedures Keep cabs free of all and secure all - ✔✔Non-essential items, loose items The primary purpose of a medical surveillance program is to - ✔✔Assess and monitor a worker's health before employment as well as during the course of employment The integrity of the eardrum should be established since perforated eardrums can provide a for chemicals into the body and may preclude respirator use - ✔✔Route of entry Medical program management should encourage employees to... - ✔✔All of the above How often should a team member be examined, according to federal regulations? - ✔✔Upon entering, on a periodic basis; following appearance of symptoms that indicate exposure; and upon termination from a Hazardous Materials Team Following the OSHA Hazardous Waste Standard, the employer must maintain and preserve medical records of a worker's exposure to hazardous materials for what period of time? - ✔✔For the term of employment, plus 30 years Workers enrolled in medical surveillance programs must have medical examinations at the following times: - ✔✔All of the above Who is required to pay for work-related medical surveillance exams? - ✔✔The employer

Why is assessment of the cardiovascular system an important part of a baseline medical surveillance exam? - ✔✔Identifies people with cardiovascular risk factors--may not be permitted to use PPE including respirators The three components essential for a fire are: - ✔✔Oxygen, fuel, ignition source Flammable gases with a wide flammable range, such as hydrogen or acetylene, are than a material with a narrow flammable range - ✔✔Easier to ignite Gases and vapors that are heavier than air: - ✔✔Pose a hazard because they can displace air especially in low-lying areas A Safety Data Sheet tells us that a material has a pH of 1.2. This chemical data tells us that the material is: - ✔✔An acid Select the most correct statement relating to supplied air respirators - ✔✔They provide the best protection against respiratory hazards What three variables must be identified before air-purifying respirators can be considered for use? - ✔✔Identity of hazard, concentration, oxygen content Define PAPR - ✔✔Powered Air Purifying Respirator The most common type of supplied air respirator is the - ✔✔Self Contained Breathing Apparatus What must be present to use an air purifying respirator? - ✔✔19.5% oxygen or greater APRs are NOT approved for - ✔✔IDLH (immediately dangerous to life and health) atmospheres Cartridges must be changed prior to chemical - ✔✔Breakthrough

A cartridge with a black band on its outside indicates it can be used for protection against - ✔✔Organic vapors In an atmosphere which is immediately dangerous to life and health, your best respiratory protection is:

• ✔✔Self-contained, pressure demand breathing apparatus Pressure demand SCBAs have a protection factor of: - ✔✔ 10000 The two types of entry and escape SCBAs are - ✔✔Open circuit and closed circuit When should you wear an SCBA? - ✔✔When an air-purifying respirator protection factor is not sufficient for the chemical concentration in the work area is determined experimentally by measuring face piece seal and exhalation valve leakage - ✔✔The Protection Factor (PF) An air purifying respirator provides than a supplied air respirator - ✔✔Less protection (PF)(PEL or TLV) = - ✔✔Maximum Value Limit Define IDLH - ✔✔Immediately dangerous to life or health The two types of respirator fit testing are: - ✔✔Qualitative, quantitative What are the two quick checks for wearing a respirator? - ✔✔Positive, negative The individual who uses a respirator is required to perform a to ensure that an adequate seal is achieved each time the respirator is put on - ✔✔User seal check

is the governing regulation that enforces respirators to be approved prior to their use - ✔✔OSHA Anyone entering a hazardous waste site must be against potential hazards - ✔✔Protected OSHA requires a written program for selection and use of respirators in - ✔✔ 29 CFR 1910. Knowing the signs and symptoms of and how to prevent it is important to the worker because of the PPE they are required to wear - ✔✔Heat stress The PPE program should be reviewed at least - ✔✔Annually The EPA level of protection which provides the highest degree of respiratory and skin protection against gases and vapors is - ✔✔Level A The primary difference between level A and Level B PPE is: - ✔✔Splash protection When using Level C PPE: - ✔✔You must wear an air-purifying respirator should be worn when the airborne contaminants are known, the concentrations are measured and the requirements for using air-purifying respirators are met - ✔✔Level C All chemical protective suits should be inspected prior to their use and ideally on a maintenance program - ✔✔Monthly is the process by which a chemical dissolves in and/or moves through a protective clothing material - ✔✔Permeation is the loss of or change in the fabric's chemical resistance or physical properties - ✔✔Degradation

Permeation of PPE is affected by: - ✔✔All of the above When planning an SCBA-assisted work mission, the following variables should be considered, and work actions and operating time should be adjusted accordingly: - ✔✔All of the above Upon finishing shifts, workers must replace body fluids by drinking ample to prevent dehydration - ✔✔Water A qualified should be consulted if a radiation hazard exists - ✔✔Health physicist Wearing chemical protective clothing (CPC) prevents what route of exposure to hazardous materials? - ✔✔Skin Personnel should be able to their PPE - ✔✔Upgrade and downgrade Individuals should always perform on their PPE - ✔✔Maintenance Chemical suits must be before use - ✔✔Inspected If your urine output color is dark yellow what should you do? - ✔✔Drink more water Pick the best treatment for heat stress - ✔✔Water occurs when fluid loss causes blood flow to decrease in vital organs - ✔✔Heat exhaustion is a life threatening situation, because the body has lost its ability to cool itself - ✔✔Heat stroke Protective equipment must be provided, used, and maintained in sanitary and reliable condition, as necessary, to protect employees from - ✔✔Workplace hazards

Who is responsible for purchasing PPE? - ✔✔Employer Which one of the following is a Class B helmet? - ✔✔Impact, penetration resistance, and electrical protection For chemical spills, you would use gloves for clean up. - ✔✔Rubber All personnel and equipment leaving the hazardous waste site must be to prevent the spread of hazardous materials offsite - ✔✔Decontaminated The is part of the Site Health and Safety Program. - ✔✔Decontamination plan might be either on the surface of the PPE or may have permeated the PPE material - ✔✔Contaminants You should always try to contact with contaminants - ✔✔Minimize A method for determining the effectiveness of surface decontamination is - ✔✔Swipe testing The controls access into and out of the Exclusion Zone and confines decontamination activities to a limited area - ✔✔Personal decontamination station The each person does determines the potential for contact with hazardous materials - ✔✔Work Define CRZ - ✔✔Contamination Reduction Zone During removal of contaminated clothing, personnel may contact contaminants on their - ✔✔Clothing or inhale them

should be instituted immediately without considering decontamination - ✔✔Life-saving care requires prompt treatment to prevent irreversible damage or death - ✔✔Heat stroke Protective clothing and respirators help prevent the wearer from becoming - ✔✔Contaminated There are two primary types of decontamination methods: - ✔✔Physical and chemical Chemical removal of surface contaminants can be accomplished by dissolving them in a - ✔✔Solvent tools are difficult to decontaminate because they absorb chemicals. - ✔✔Wooden : solidifying liquid or gel contaminants can enhance their physical removal - ✔✔Solidification : the smaller the size of the contaminant molecule the greater it will absorb into the protective clothing material - ✔✔Contaminant molecule size : contaminants present in a gaseous or liquid state will absorb faster into protective clothing than those in a solid state - ✔✔Contaminant physical state temperatures will result in faster permeation of chemicals through protective clothing - ✔✔Higher When decontaminating items, it's important to remember that many hazardous substances or chemicals

• ✔✔Do not leave visible traces are very effective in controlling spills and aiding in decontamination - ✔✔Absorbants Exercise in handling drums that are not intact and tightly sealed - ✔✔Extreme caution

As a precautionary measure, personnel should assume that unlabeled drums contain until their contents are characterized - ✔✔Hazardous material The appropriate procedures for handling drums depend on the - ✔✔Drum contents may occur during handling of drums and other hazardous waste containers - ✔✔Accidents If material is noted at the neck of any bottle, handle it as a shock-sensitive waste - ✔✔Crystalline Lab packs have material in them for cushioning and containment of free liquids - ✔✔Absorbent If a drum containing liquid is too unstable to move because it may rupture, what should be done? - ✔✔Transfer contents to a structurally sound drum A bulging drum should be considered - ✔✔Under pressure The goal of is to obtain the data necessary to determine how to safely and efficiently package and transport the wastes for treatment and/or disposal - ✔✔Characterization Which government agency regulates transportation? - ✔✔Department of Transportation (DOT) When possible, materials should be characterized using an - ✔✔Onsite laboratory Please select the best answer for bulking - ✔✔Mixing of characterized wastes What's the hazard classification for a label/placard that is red in color? - ✔✔Flammability What is the hazard classification for a label/placard that is blue in color? - ✔✔Health hazard

The NFPA ratings are based on the material - ✔✔Flashpoint The DOT hazard classification system is based on the - ✔✔United Nations hazard classes What is the regulatory standard for trenching and excavation? - ✔✔ 29 CFR 1926. Who can certify an individual as a competent person? - ✔✔Employer Who is responsible for designing ramps during excavation work? - ✔✔Competent person A is a narrow excavation made below the surface of the ground - ✔✔Trench It should be noted that the test is the least accurate testing method - ✔✔Thumb penetration According to the OSHA soil classification system, Type A soil is the most - ✔✔Stable Who is responsible for classifying soils? - ✔✔Competent person Trench boxes or shields must be approved by a - ✔✔Registered professional engineer There is no sloping requirement for - ✔✔Stable rock "Distress" in OSHA parlance, means that a cave-in is - ✔✔Imminent or likely to occur What time of wood is typically used in timber shoring? - ✔✔Oak

The has overall responsibility for the safety of all persons involved with entry operations into confined spaces under his or her control - ✔✔Supervisor The continuously observes authorized entrants working in a confined space - ✔✔Safety attendant The ensures the conditions of a confined space entry permit are met - ✔✔Supervisor The must be trained to recognize hazardous conditions before they happen - ✔✔Safety attendant According to OSHA, a confined space must have at least in vertical height - ✔✔4ft Fatalities in confined spaces have resulted from - ✔✔All of the above Confined spaces can be - ✔✔Enclosed or open tops All confined spaces must be identified and classified as either non-permit-required confined spaces or

• ✔✔Permit-required confined spaces One should never enter a permit-requiring confined space without a safety attendant on duty and adequate air testing - ✔✔True If the confined space has contained hazardous substances, it is important for the confined space to be before entry - ✔✔Emptied and purged Air in the confined space should be tested for - ✔✔Oxygen content, flammability, and toxicity What are the OSHA acceptable limits for oxygen in a confined space? - ✔✔19.5%-23.5% What must you have prior to entering a confined space? - ✔✔Confined Space Entry Permit

Other than a confined space entry permit, what else must you have prior to entry? - ✔✔Communications Training be provided for all personnel associated with a confined space entry - ✔✔Must For rescue operations, the rescue line should pass a - ✔✔2,000 pound test If the meter reading is still above of the LEL, the confined space must be cleaned before entry is permitted - ✔✔10% Two factors that can cause an atmosphere to become flammable are - ✔✔Oxygen and flammable components Define LEL - ✔✔Lower Explosive Limit devices permit employees to work safely on de-energized equipment without fear that the devices will be accidentally moved - ✔✔Lockout/Tagout Portable electric tools used in a confined space must be protected by a - ✔✔Ground fault circuit interrupter Along with other equipment, a must be worn when making a top entry into a confined space

• ✔✔Safety harness is required before entry to ensure the atmosphere is acceptable before an entry permit is issued
• ✔✔Ventilation Many fatalities occur because victims do not fully understand the threat of airborne hazards that they cannot - ✔✔See, smell, or feel

One of the reasons for confined space injuries and fatalities is - ✔✔Poor planning A good way to begin on learning how to protect yourself is to take a look at some things that have caused - ✔✔Accidents in the past Working in a confined space has its own set of potential work problems such as: - ✔✔All of the above Toxins present two different types of risk: - ✔✔Chemical asphyxiation and irritation When the oxygen content is below it is too low to provide enough oxygen for a working person

• ✔✔19.5% Electrical power that could shock workers for move mechanical equipment must be prior to entry into a confined space - ✔✔Locked or tagged out provides the information needed to identify site hazards and to select worker protection methods - ✔✔Site characterization should be carried out when site hazards are largely unknown or when there is no need to go on site immediately - ✔✔Perimeter reconnaissance The purpose of an is to verify and supplement information from the off-site characterization - ✔✔On-site survey The outlines what needs to be accomplished and then prescribes procedures to protect the health and safety of the entry team - ✔✔Site Safety Plan Upon completion of site characterization, activities that must be implemented include: - ✔✔All of the above Site characterization includes: - ✔✔All of the above

Site characterization is done to: - ✔✔Assess hazards at the waste site is the study of chemical toxicity - ✔✔Toxicology Humans and other living animals in their response to any exposure to a chemical substance - ✔✔Vary are tiny particles produced from heating, volatilization and condensation of metals - ✔✔Fumes Define HAZCOM - ✔✔Hazard Communication is defined as how the body handles poison - ✔✔Toxicokinetics Exposure to a hazardous substance can occur in two ways: - ✔✔Directly or indirectly The most common toxic dose in the work environment comes through: - ✔✔Inhalation is a one time or an infrequent exposure to a high concentration of a substance - ✔✔Acute A synergistic effect is considered to be - ✔✔ 2 + 2 = 6 An additive effect is considered to be - ✔✔2 + 2 = 4 Define PEL - ✔✔Permissible exposure limit Define TWA - ✔✔Time-weighted average

The NFPA 704 - M system ("hazard diamonds") identifies the hazards of materials in: - ✔✔Reactivity, health, and flammability The white section ("home plate") of the NFPA 704 - M Hazard Diamond provides information on: - ✔✔Special hazards The blue section of the NFPA sign designates which hazard? - ✔✔Health Define JSA - ✔✔Job Safety Analysis are those that cause physical injury, such as by fire or explosion - ✔✔Physical hazards or low-lying areas are particularly vulnerable to oxygen deficiency - ✔✔Confined spaces DOT recognizes ____ subcategories of explosives - ✔✔ 6 Work around large equipment often creates excessive noise. The effects of noise can include: - ✔✔All of the above Snakebites and poison ivy are considered to be: - ✔✔Other environmental hazards means inflammation of the liver - ✔✔Hepatitis means to treat all blood and most body fluids as if they were contaminated with the HBV or HIV viruses - ✔✔Universal precautions are a common unit of measurement used to calculate adequate lighting levels in workspaces - ✔✔Foot-candles are microorganisms such as bacteria or viruses - ✔✔Bloodborne pathogens

There are two main types of materials that are capable of skin and metal destruction and they are known as: - ✔✔Acids and bases The requires employers to evaluate chemical hazards in their facilities and to communicate the hazard information to employees - ✔✔Hazard Communication Standard (HCS) Define NFPA - ✔✔National Fire Protection Association The chemicals are the second-most commonly used and transported group of hazardous materials - ✔✔Corrosive class Should you splash your eyes with a chemical, what should you do? - ✔✔Flush with water Flushing must continue for a minimum of to ensure that all the chemical that can possibly be removed is in fact removed - ✔✔15 minutes The first and foremost hazard that a can produce is the ability to destroy living tissue - ✔✔Corrosive is the negative log of the concentration of H+ in solution - ✔✔pH The is a colorless, viscous fluid, is relatively insoluble in water, and can withstand high temperatures without degradation - ✔✔PCB mixture Define PCB - ✔✔Polychlorinated biphenyl The of different types of materials is a potential hazard at any waste site - ✔✔Mixing If there is an ignition source present, hydrogen gas will - ✔✔Explode

The primary hazard of flammable is the physical hazard of fire or explosion - ✔✔Liquid solvents The ignition point is the temperature that the vapor must reach to - ✔✔Ignite The minimum concentration of flammable liquid vapor in air necessary for a mixture to ignite is called the - ✔✔Lower explosive limit An is, by chemical definition, "any material that will gain electrons during a chemical reaction" - ✔✔Oxidizer not only mix oxides and flammable components but also readily decompose if subjected to friction, heat, shock, or contamination - ✔✔Organic peroxides The hazard most likely to be encountered in incidents involving oxidizers is that the oxidizer combustion - ✔✔Intensifies Oxygen is by a cooling process - ✔✔Liquefied OSHA defines as any substance that will spontaneously decompose, polymerize, or self-react under conditions of shock, temperature, or pressure - ✔✔Unstable Water reactive metals tend to be soft metals that have melting points - ✔✔Low Treat unstable materials as until they are proven otherwise - ✔✔Explosives hazardous materials exist as liquids or crystalline solids - ✔✔Unstable Which of the following forms of radiation will generally not penetrate intact skin, but can be a serious hazard if inhaled? - ✔✔Alpha

Chronic doses are amounts of radiation over a long period of time, such as our normal daily exposures over our lifetimes - ✔✔Small Beta particles can be stopped by - ✔✔Aluminum foil can by stopped by lead - ✔✔Gamma rays is a term which describes how sensitive a given cell is to radiation damage - ✔✔Radiosensitivity refers to the way particles and rays radiate from their source at speeds up to that of light - ✔✔Radiation Any particles or rays given off (radiate) from a source that produces ionization is called - ✔✔Ionizing radiation are important to protect from radiation - ✔✔Time, distance, and shielding There are 2 types of sampling methods. What are they? - ✔✔Area and personal instruments utilize instantaneous or grab-type samples collected over brief periods of time - ✔✔Direct-reading Workers need to be familiar with the different types of they will be using on the work site - ✔✔Air monitoring equipment A prime consideration for field instruments is - ✔✔Portability For an instrument to function properly in the field, it should be prior to use - ✔✔Calibrated

measure the concentration of a flammable vapor or gas in air - ✔✔Combustible Gas Indicators (CGI) Detector tubes have the disadvantage of poor - ✔✔Accuracy and precision types of instrumentation are used for detecting hazardous atmospheres - ✔✔Several All atoms and molecules are composed of particles: - ✔✔Electrons, protons, and neutrons A Flame ionization detector (FID) is used for - ✔✔Detecting organic vapors Moisture in the air also the ionization of chemicals and causes a reduction in readings - ✔✔Reduces are the most common types of radiation found at hazardous waste sites - ✔✔Beta and gamma means sampling the immediate surroundings of persons in their work environment - ✔✔Personal monitoring Passive samplers are commonly divided into two groups. What are they? - ✔✔Diffusion and permeation ensures that the measurement data can be correctly interpreted - ✔✔Calibration Define STEL - ✔✔Short Term Exposure Limit mg/m3 = - ✔✔Milligrams per cubic meter Chemical concentrations can exceed the ceiling limit - ✔✔Never

An increase in temperature the vapor pressure of most chemicals - ✔✔Increases In open spaces, toxic materials tend to be in the atmosphere - ✔✔Emitted and thus atmospheric chemical conditions may change following the initial characterization - ✔✔Site conditions protection should be worn during this initial sampling - ✔✔Level B The purpose of is to determine the characteristics of a source material based on testing a small selected amount - ✔✔Sampling Samples should be preserved at what temperature? - ✔✔4°C Hazardous waste samples are taken from the of the contamination - ✔✔Source Sampling can be one of the most activities on a hazardous waste site - ✔✔Dangerous For undisturbed soil cores 18 - 24in in length, a is used - ✔✔Split spoon sample are useful when samples must be taken from depths beyond a pump's lifting capacity and when volatile component stripping is a concern. - ✔✔Bailers Decontaminate drilling and sampling equipment thoroughly after to avoid of the next well - ✔✔Cross contamination Prior to sampling a groundwater well must be done - ✔✔Purging Do not other drums to reach the drum being sampled, unless absolutely necessary - ✔✔Lean over

Selection of sampling equipment is on the type of container and the material to be sampled - ✔✔Dependent Protect personnel by keeping them at a from the drums being opened - ✔✔Safe distance You should the drum opening equipment to minimize worker exertion - ✔✔Hang or balance A is a written document that sets forth policies and procedures for responding to site emergencies - ✔✔Contingency plan Who performs emergency decontamination? - ✔✔Decontamination Station Officers A(n) stands by, partially dressed in protective gear, near the Exclusion Zone ready to rescue any workers - ✔✔Emergency rescue team Any hazard on site can precipitate an - ✔✔Emergency All internal communication systems should be: - ✔✔All of the above systems and procedures should be clear and accessible to all workers - ✔✔External communication Safe distances can only be at the time of an emergency - ✔✔Determined In an emergency, crucial messages must be conveyed - ✔✔Quickly and accurately A good is a site map with flags or color-headed pins identifying each worker - ✔✔Passive locator system

Place the evacuation routes in the predominantly direction of the Exclusion zone - ✔✔Upwind When planning for decontamination in medical emergencies, procedures should be developed for: - ✔✔All of the above An active locator system is: - ✔✔Worn by the person Take measures to of the transport vehicle and ambulance and hospital personnel - ✔✔Minimize chemical contamination Evacuate means to - ✔✔Locate personnel to a safe distance upwind : remove or assist victims from the area - ✔✔Extricate A document for the incident must be - ✔✔Accurate and authentic Never rely on the of the cylinder for identification - ✔✔Color A nonflammable gas that supports and vigorously accelerates combustion in the presence of an ignition source and fuel is a - ✔✔Oxidizer gas Compressed gas cylinders are potential - ✔✔All of the above All compressed gas cylinders are required to have - ✔✔Identifiers Cylinders should be places with the valve at all times - ✔✔Accessible Cylinder valves should be opened - ✔✔Slowly