HAZWOPER 40 - Final Exam Questions with 100% Correct Answers Verified Latest Update, Exams of Advanced Education

Download HAZWOPER 40 - Final Exam Questions with 100% Correct Answers Verified Latest Update and more Exams Advanced Education in PDF only on Docsity! HAZWOPER 40 - Final Exam Questions with 100% Correct Answers Verified Latest Update Chronic responses to chemical exposures occurs only a short time after exposure. - Correct Answer-False Which of the following is NOT on the "to-do" list for solvents? - Correct Answer-Keep solvents in a non-ventilated area. A corrosive is a substance, usually a liquid, which is capable of completely dissolving another substance. - Correct Answer-True Which of the following is NOT a way to protect yourself from toxins? - Correct Answer- Conduct all activities with the maximum amount of PPE possible. Which class of helmets has no resistance to electrical voltage? - Correct Answer-Class C Toxic dose is the same for every living thing - Correct Answer-False Which of the following is NOT a step that should be covered in an emergency response procedure? - Correct Answer-Clarification An OSHA standard dealing with general slip and fall protection would be an example of ______. - Correct Answer-Horizontal A change in season, weather, or changes in job tasks are examples of reassessment indicators for a site. - Correct Answer-True The contingency plan should include ______ personnel. - Correct Answer-Both on and off-site A decontamination plan should be developed ______ any operations begin with any hazardous substances. - Correct Answer-Before When the exposure of two different toxic chemicals produces a more severe effect than either one alone is called ______ interaction. - Correct Answer-Synergisitic Where are titles representing broad areas that are subject to Federal regulation found? - Correct Answer-Code of Federal Regulations In the Code of Federal Regulations, which section explains who is subject to the regulation and under what circumstances? - Correct Answer-Scope and application paragraph The entry team and reserves should always consist of how many persons? - Correct Answer-3 Which method of toxic chemical entry is the least commonly found at the workplace? - Correct Answer-Injection Which act regulates and enforces the clean-up of abandoned hazardous waste sites and hazardous waste sites created prior to RCRA? - Correct Answer-CERCLA Which of the following is NOT a step in the employers Hazard Communication Program? - Correct Answer-Conducting a review meeting weekly of rules under HCS Decontamination facilities should be located in ______. - Correct Answer-The Contamination Reduction Zone Which of the following is NOT a requirement covered in 29 CFR 1910 regarding face, head, foot, and hand protection? - Correct Answer-All workers have the responsibility of evaluating their workplace to determine hazards Pre-planning is essential for Emergency and Non-emergency medical treatment. - Correct Answer-True If a coworker is being electrically shocked, you should ______. - Correct Answer-Shut of the power Which of the following should be conducted first? - Correct Answer-An off-site survey Who is responsible for assessing the potential risk of a hazard, and, if the level of risk is acceptable, determining if something needs to be done to lower the risk? - Correct Answer-The Site Health and Safety Officer What is an example of an item that would be located in a refuge area? - Correct Answer-Both B and C Any substance, situation, or condition that is capable of harming human health, property, or the environment is called a/an ______. - Correct Answer-Hazard The level of site control needed depends on ______. - Correct Answer-All of the above If you see blood spilled in the workplace, you should immediately clean it up, even without proper training or equipment. - Correct Answer-False SDS must be ____________ accessible to employees during their work shift - Correct Answer-readily the _____ should specifically identify the names and organizational relationships among key personnel - Correct Answer-HASP Who has the responsibility for overall management of projects? - Correct Answer- project manager The Site Safety and Health Officer is responsible for _____ - Correct Answer-managing the health and safety program for the site who is responsible for maintaining line-of-sight contact at a HAZWOPER site? - Correct Answer-command post supervisor the security officer is responsible for _________ - Correct Answer-controlling facility access and egress the ______ is responsible for planning and mobilization of the facilities - Correct Answer-logistics officer ___________ consisting of field team members who complete the on site tasks required to fulfill the work plan, should be identified - Correct Answer-specialty teams the specific responsibilities of the ______ should be stated - Correct Answer-bomb squad expert which of the following is true about the exclusion zone? - Correct Answer-eating is prohibited what must be posted at the entrance access control point? - Correct Answer-health and safety procedure in order to prevent the injuries at the work sire, people should be trained on ______ - Correct Answer-proper operating procedures Keep cabs free of all _____ and secure all ____ - Correct Answer-Non-essential items, loose items the three components essential for a fire are: - Correct Answer-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 - Correct Answer-easier to ignite gases and vapors are heavier than air....? - Correct Answer-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 a? - Correct Answer-acid the NFPA 704 system identifies that hazards of materials in? - Correct Answer- instability, health, and flammability what does the white section of the NFPA 704 hazard diamond represent? - Correct Answer-special hazards the blue section of the NFPA hazard diamond designates which hazard? - Correct Answer-health define the acronym JSA - Correct Answer-Job Safety Analysis OSHA requires the use of supplied-air respirators at oxygen concentrations of ______ or lower - Correct Answer-19.5% _________ are those that cause physical injury, such as by fire or explosion - Correct Answer-physical hazards ________ or low-lying areas are particularly vulnerable to oxygen deficiency - Correct Answer-confined spaces DOT recognizes ____ subcategories of explosives - Correct Answer-6 what occurs when the body's system of temperature regulation fails and body temperature rises to critical levels? - Correct Answer-heat stroke Work around large equipment often creates excessive noise. The effects of noise can include: - Correct Answer-all of the above- including: -distractions -getting startled -being annoyed workers suffering from heat exhaustion should be removed from the hot environment and given ____ replacement - Correct Answer-fluid snake bites and poison ivy are considered ______ - Correct Answer-other environmental hazards _____ refers to inflammation of the liver - Correct Answer-hepatitis _____ refers to the treatment of all blood and most body fluids as if they were contaminated with the HBV or HIV - Correct Answer-universal precautions ________ are a common unit of measurement used to calculate adequate lighting levels in workspaces - Correct Answer-foot-candles select the correct statement relating to supplied-air respirators - Correct Answer- supplied-air respirators provide the best protection against respiratory hazards the respiratory protection program must meet which of the following requirements? - Correct Answer--written standard operating procedures covering the selection and use of respirators must be established -respirators will be selected based on hazards to which the worker is exposed -the user will be instructed and trained in the proper used of respirators and their limitations PAPR stands for - Correct Answer-Powered Air Purifying Respirator the most common type of supplied-air respirator is the _______ - Correct Answer-self- contained breathing apparatus what must be present to use an air-purifying respirator - Correct Answer-19.5% oxygen or greater APR's are NOT approved for _______ - Correct Answer-IDLH (immediately dangerous to life and health) atmospheres Cartridges must be changed prior to chemical ___ - Correct Answer-breakthrough what three variables must be identified before APRs can be considered for use? - Correct Answer-identity of hazard, concentration, and oxygen content in an atmosphere which is IDLH, your best respiratory protection is a - Correct Answer- positive pressure SCBA pressure demand SCBAs have a protection factor of - Correct Answer-10,000 the two types of entry and escape SCBAs are - Correct Answer-open circuit and closed circuit when should you wear an SCBA - Correct Answer-when an APR 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 - Correct Answer-the protection factor (PF) what are tiny particles from heating, volatilization, and condensation of metals? - Correct Answer-fumes what are tiny particles of solids? - Correct Answer-dusts what are chemicals that deprive the victim's body tissues of oxygen? - Correct Answer- asphyixiants the physical forms in which chemicals are encountered at a waste site play a large role in the routes of entry into the body - Correct Answer-true What is defined as how the body handles poisons? - Correct Answer-Toxicokinetics What are the four ways toxic chemicals can enter the body? - Correct Answer--the most common toxic dose in the work environment comes through breathing, or inhalation -the next most common route of entry is through eye and/or skin contact -the most common route in the home is swallowing or ingestion -a route that is more accidental is injection what is defined as a one time or an infrequent exposure to a high concentration of a substance? - Correct Answer-chronic personnel that handle chemicals need to follow a hygiene program that will prevent the accidental ingestion of hazardous material - Correct Answer-true what is considered to be a synergistic effect? - Correct Answer-(2+2 = 6) what is considered to be an additive effect? - Correct Answer-(2+2 = 4) chronic or delated effects rarely occur a long time after exposure - Correct Answer-false what are the two main types of materials that are capable of skin and metal destruction? - Correct Answer-acids and bases what information must the safety data sheet contain? - Correct Answer--product identification and manufacturers name -hazardous ingredients -fire and explosion hazard data what information must a label contain? - Correct Answer--standardized signal words -pictogram -hazard statement for each class and category -precautionary statements local fire codes generall require facilities to post NFPA signs on buildings and doors to warn of the hazardous chemicals within - Correct Answer-true what is the first thing you should do if a chemical enters your eyes? - Correct Answer- flush the eyes with water if exposed to acids or bases, what factors into the extend of the injury? - Correct Answer--concentration of the acid or base -quantity of acid or base involved -body area affected -duration of the contact what is the rule of 9? - Correct Answer-a chemical burn is 9 times as damaging as a thermal burn in an acid-base neutralization reaction, it is not important to reduce the possibilities of an uncontrolled reaction - Correct Answer-false what is a colorless, vicous fluid that is relatively insoluble in water and can withstand high temperatures without degradation? - Correct Answer-PCB mixture what action with different types of materials is a potential hazard at any waste site? - Correct Answer-mixing what can happen if hydrogen gas is present with an ignition source? - Correct Answer- explosion some fish products from the US waters and baltic sea were found to contain several parts per million of PCBs and all have been cleared for human comsumption - Correct Answer-false what does acute effects of inhalation include? - Correct Answer--muscular weakness -loss of coordination -disorientation and confusion -unconsciousness and sometimes death what is included in the fire triangle? - Correct Answer-fuel, oxygen, ignition source over the long term, chronic effects of solvents tend to affect the function of the liver or the kidneys - Correct Answer-true if a solvent is splashed into the eyes, how long should you flush with cool water? - Correct Answer-15 minutes what is, by chemical definition, any material that will gain electrons during a chemical reaction? - Correct Answer-oxidizer _______ not only mix oxides and flammable components, but also readily decompose if subjected to friction, heat, shock, or contamination - Correct Answer-organic peroxides what happens to oxygen during a cooling process? - Correct Answer-liquifies what are the hazards involved in using water as an extinguishing agent to fight an oxidizer fire? - Correct Answer--run off -impregnation of combustibles -possible water reactivity of the oxidizer water reactive metals tend to be soft metals that have high melting points - Correct Answer-false water reactive metals tend to be soft metals that have ____ melting points - Correct Answer-low treat unstable materials as ________ until they are proven otherwise - Correct Answer- explosives what hazardous materials exist as liquids or crystalline liquids? - Correct Answer- unstable which form of radiation will generally not penetrate intact skin, but can be a serious hazard if ingested or inhaled? - Correct Answer-alpha _______ amounts of radiation are chronic doses over a long period of time, such as our normal daily exposures over a lifetime - Correct Answer-small what can stop beta particles - Correct Answer-thin piece of metal what can be stopped by lead? - Correct Answer-gamma waves what is the term which describes how sensitive a given cell is to radiation damage? - Correct Answer-radiosensitivity what is referred to as the way particles and rays radiate from their source at speeds up to that of light? - Correct Answer-radiation what consists of particles or rays given off from a source that produces ionization in its path? - Correct Answer-ionizing radiation what are important factors to protect from radiation? - Correct Answer-time, distance, shielding what are two types of sampling methods? - Correct Answer-area and personal soil samples may be collected using a variety of methods and equipment, what is the method and equipment dependent on? - Correct Answer--depth of desired sample -type of soil -if the sample needs to be from disturbed or undisturbed soil the disadvantage of using bailers is that they are time consuming because of their limited sample volume - Correct Answer-true a peristaltic pump is useful when relatively small samples are needed - Correct Answer- false sludge and sediment sampling is similar to soil sampling in that the material may be collected as though it is a solid - Correct Answer-true what should you do if a drum shows signs of swelling or bulging - Correct Answer-- relieve excess pressure glass tubing should be used with materials containing hydrofluroic acid or strong alkali solutions - Correct Answer-false what are the three phases of site characterization? - Correct Answer--off site characterization -onsite surveys -ongoing-monitoring what should be performed when site hazards are largely unknown or when there is no need to go on site immediately? - Correct Answer-perimeter reconnaissance what should the off site characterization be used for prior to site entry? - Correct Answer-developing a site safety plan for site entry gather as much information as possible after you enter a hazardous site, not before - Correct Answer-false upon entering a site, what safety hazards should be noted? - Correct Answer-- conditions of site structures -obstacles to entry and exit -terrain instability and stability of stacked material what does site characterization include? - Correct Answer--perimeter reconnaissance -interview records and research -information sources why is site characterization performed? - Correct Answer-to assess hazards at the waste site why is proper documentation and document control essential? - Correct Answer-- ensures accurate communication -ensures the quality of the data collected -provides reasons for safety decisions -supports possible legal actions what are some examples of works hazards created by using PPE? - Correct Answer-- physical and psychological stress -heat stress -impaired vision and reduced mobility where does OSHA require a written program for selection and use of respirators? - Correct Answer-29 CFR 1910.134 the two basic goals of a PPE program are to protect the wearer from safety and health hazards and prevent injury to the wearer from wearing incorrect use/malfunction of PPE - Correct Answer-true how often should the PPE program be reviewed? - Correct Answer-annually what EPA level of protection provides the highest degree of respiratory and skin protection against gases and vapors? - Correct Answer-Level A what is the primary difference between Level A and B PPE? - Correct Answer-splash protection what level of PPE should be worn when the airborne contaminants are known, the concentrations are measured, and the requirements for using air-purifying respirators are met? - Correct Answer-Level C Level D should be worn when a minimum level of protection is needed from chemical hazards - Correct Answer-true ideally how often should all chemical protective suits should be inspected? - Correct Answer-monthly what is the process by which a chemical dissolves in an or moves through a protective clothing material? - Correct Answer-permeation permeation of PPE is affected by? - Correct Answer-temperature, material thickness, and chemical composition what is the loss of or change in the fabrics chemical resistance or physical properties? - Correct Answer-degradation when planning an SCBA-assisted work mission, what variables should be considered? - Correct Answer-work rate, fitness, body size which factors limit a mission length? - Correct Answer-air-supply consumption suit permeation and penetration by chemical contaminants ambient temperature coolant supply the ambient temperature has minor influence on work mission duration - Correct Answer-true heat stress can occur in relatively moderate temperatures - Correct Answer-true what records should be kept for all reusable pieces of equipment? - Correct Answer-- equipment ID number -date -inspector -any unusual conditions or findings many equipment failures can be directly attributed to improper storage - Correct Answer-true what occurs when fluid loss causes blood flow to decrease in vital organs? - Correct Answer-heat exhaustion what is life-threatening in which the body has lost its ability to cool itself - Correct Answer-heat stroke when workers are wearing semi-permeable or impermeable encapsulating ensembles, workers should be monitored when temperature is above what degree? - Correct Answer-70 degrees F who is responsible or purchasing PPE - Correct Answer-employer which gloves should be used for chemical spill cleanup? - Correct Answer-rubber PPE verification of compliance can be shown through a written certification record, which should include the following? - Correct Answer--the workplace evaluated -the person certifying that the evaluation was performed -the data of the hazard assessment -a statement that identifies the document as a certification of hazard assessment what is a written document that sets fourth policies and procedures for responding to site emergencies? - Correct Answer-contingency plan Who performs emergency decontamination? - Correct Answer- 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? - Correct Answer-for the term of employment plus 30 years during a physical exam, conditions such as a missing or anthric finger, facial scars, dentures, poor eyesight, or perforated eardrums should not be noted - Correct Answer- false Workers enrolled in medical surveillance programs must have medical examinations at the following times: - Correct Answer--before and after assignment -after any possible over exposure to a hazardous substance in an emergency situation -annually or at more frequent times if necessary, according to the physician why is assessment of the cardiovascular system an important part of a baseline medical surveillance exam? - Correct Answer-identified people with cardiovascular risk factors who may not be permitted to use personal protective equipment including respirators What does evacuate mean? - Correct Answer-locate personnel to a safe distance downwind what is removing or assisting victims from an area? - Correct Answer-extricate when should you attempt emergency response or rescue? - Correct Answer-when backup personnel and evacuation routes have been identified government authorities are responsible for large-scale public evacuations - Correct Answer-true The purpose of a site control program is to... - Correct Answer-all of the above an effective site control program contains key procedures that reduce worker and public exposure to ____ - Correct Answer-all of the above the level of site control needed depends on _______ - Correct Answer-all of the above the ______ serves as a central source of information about the site and can help personnel plan and organize activities. - Correct Answer-site map the safety officer is normally found in the - Correct Answer-Contamination Reduction Zone or Support Zone the support zone is typically has the following: - Correct Answer-all of the above what is a hotline? - Correct Answer-a place that divides the contaminated area from all other zones the boundary between the support zone and CRZ is called the - Correct Answer- contamination control line which of the following is not true about site security? - Correct Answer-site security is necessary to intimidate the competition an external communication system between on site and off site personnel is ________ - Correct Answer-necessary verbal communication at a site can be _______ by on site background noise and the use of personal protective equipment - Correct Answer-impeded Two sets of communication systems should be established: ______ and ______ - Correct Answer-internal and external Exercise ____ in handling drums that are not intact and tightly sealed - Correct Answer- extreme caution until contents can be verified, what should personnel assume that unlabeled drums contain? - Correct Answer-hazardous materials what does the appropriate procedures for handling drums depend on? - Correct Answer-drum contents what may occur during handling of drums and other hazardous waste containers? - Correct Answer-accidents what material noted at the neck of a bottle should be handled as shock sensitive waste? - Correct Answer-crystalline what material do lab packs have in them for cushioning and containment of free liquids? - Correct Answer-absorbent what would be done if a drum containing liquid is too unstable to move because it may rupture? - Correct Answer-transfer contents to a structurally sound drum a bulging drum is considered? - Correct Answer-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 - Correct Answer-characterization which government agency regulates transportation? - Correct Answer-department of transportation when possible, material should be charaterized using an: - Correct Answer-onsite laboratory the bulking is located in what area? - Correct Answer-final staging area who has the overall responsibility for the safety of all persons involved with entry operations into confined spaces under their control? - Correct Answer-supervisor who is responsible for continuously observing authorized entrants working in a confined space? - Correct Answer-safety attendant who ensures the conditions of a confined space entry permit are met? - Correct Answer- supervisor who must be trained to recognize potential hazards? - Correct Answer-safety attendant a confined space must have at least _____ in vertical height - Correct Answer-4 feet Fatalities in confined spaces have resulted from ______ - Correct Answer-lack of or too much oxygen, electrical shock, and toxic atmospheres confined spaces can be ________ - Correct Answer-enclosed with limited opening or open top all confined spaces must be identified and classified as either non-permit required confined spaces or _________ - Correct Answer-permit required confined spaces why is it common for vitcims to misunderstand the threat of airborne hazards? - Correct Answer-they cannot see, smell, or feel them which of the following is considered a cause of confined space injury and fatality? - Correct Answer-poor rescue and retrieval planning what is required before entry to ensure the atmosphere is acceptable before an entry permit is issued? - Correct Answer-atmosphere test what is one of the ways to learn how to protect yourself? - Correct Answer-look at some things that have caused accidents in the past one should never enter a permit-required confined space without a safety attendant on duty and adequate air testing - Correct Answer-true what should be done before entering a confined space that has contained hazardous substances? - Correct Answer-the space should be emptied and purged