HAZWOPER Quiz Questions and Answers, Exams of Biology

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ALL HAZWOPER QUIZ QUESTIONS WITH 100% CORRECT ANSWER S Define HAZWOPER - answer Hazardous Waste Operations and Emergency Response HAZWOPER regulations apply to emergency response operations only for releases and not for threats of releases - answer False The primary components of the OSHA regulation applicable to the proper management of hazardous materials are... - answer 29 CFR Part 1910 Define RCRA - answer Resource Conservation and Recovery Act What is the regulatory citation for the HAZCOM standard? - answer OSHA 29 CFR 1910.1200 Material Safety Data Sheets are now known as... - answer Safety Data Sheets (SDS) HAZCOM training must be done when... - answer All of the above Define GHS - answer Global Harmonization System _____ convey health, physical, and environmental hazard information, assigned to a GHS hazard class and category - answer Symbols (hazard pictograms) Each _____ must be labeled tagged or marked - answer Container If a chemical has a GHS rating of 4 it is... - answer Least hazardous If a chemical has a GHS rating of 1 it is... - answer Most hazardous The ______ serves as a central source of information about the site and can help personnel plan and organize activities - answer Site map The Safety Officer is normally found in the _____ - answer Contamination Reduction Zone or Support Zone The support zone typically has the following - answer All of the above What is a Hot Line? - answer A place that divides the contaminated area from all other zones The boundary between the support zone and the CRZ is called the ____ - answer Contamination control line Which of the following is not true about the support zone? - answer Should be as close to the exclusion zone as possible An external communication system between onsite and offsite personnel is _____ - answer Necessary Verbal communication at a site can be _______ by onsite background noise and the use of PPE - answer Impeded Two sets of communication systems should be established: ______ and ______ - answer Internal and external Which of the following is true about the exclusion zone? - answer Eating is prohibited What must be posted conspicuously at the entrance access control points into the CRZ and/or exclusion zone? - answer Health and safety procedures In order to prevent injuries at the work site, people should be trained on ____ - answer Proper operating procedures Keep cabs free of all _____ and secure all ____ - answer Non-essential items, loose items The primary purpose of a medical surveillance program is to ____ - answer 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 - answer Route of entry Medical program management should encourage employees to... - answer All of the above How often should a team member be examined, according to federal regulations? - answer 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? - answer For the term of employment, plus 30 years Workers enrolled in medical surveillance programs must have medical examinations at the following times: - answer All of the above Who is required to pay for work-related medical surveillance exams? - answer The employer Why is assessment of the cardiovascular system an important part of a baseline medical surveillance exam? - answer Identifies people with cardiovascular risk factors--may not be permitted to use PPE including respirators When should you wear an SCBA? - answer 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 - answer The Protection Factor (PF) An air purifying respirator provides _____ than a supplied air respirator - answer Less protection (PF)(PEL or TLV) = _______ - answer Maximum Value Limit Define IDLH - answer Immediately dangerous to life or health The two types of respirator fit testing are: - answer Qualitative, quantitative What are the two quick checks for wearing a respirator? - answer 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 - answer User seal check _____ is the governing regulation that enforces respirators to be approved prior to their use - answer OSHA Anyone entering a hazardous waste site must be ____ against potential hazards - answer Protected OSHA requires a written program for selection and use of respirators in _____ - answer 29 CFR 1910.134 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 - answer Heat stress The PPE program should be reviewed at least ____ - answer Annually The EPA level of protection which provides the highest degree of respiratory and skin protection against gases and vapors is _____ - answer Level A The primary difference between level A and Level B PPE is: - answer Splash protection When using Level C PPE: - answer 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 - answer Level C All chemical protective suits should be inspected prior to their use and ideally on a _____ maintenance program - answer Monthly ______ is the process by which a chemical dissolves in and/or moves through a protective clothing material - answer Permeation ______ is the loss of or change in the fabric's chemical resistance or physical properties - answer Degradation Permeation of PPE is affected by: - answer 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: - answer All of the above ______ might be either on the surface of the PPE or may have permeated the PPE material - answer Contaminants You should always try to ____ contact with contaminants - answer Minimize A method for determining the effectiveness of surface decontamination is _______ - answer Swipe testing The ____ controls access into and out of the Exclusion Zone and confines decontamination activities to a limited area - answer Personal decontamination station The _____ each person does determines the potential for contact with hazardous materials - answer Work Define CRZ - answer Contamination Reduction Zone During removal of contaminated clothing, personnel may contact contaminants on their ____ - answer Clothing or inhale them ____ should be instituted immediately without considering decontamination - answer Life-saving care ______ requires prompt treatment to prevent irreversible damage or death - answer Heat stroke Protective clothing and respirators help prevent the wearer from becoming ____ - answer Contaminated There are two primary types of decontamination methods: - answer Physical and chemical Chemical removal of surface contaminants can be accomplished by dissolving them in a _____ - answer Solvent _____ tools are difficult to decontaminate because they absorb chemicals. - answer Wooden ________: solidifying liquid or gel contaminants can enhance their physical removal - answer Solidification ________: the smaller the size of the contaminant molecule the greater it will absorb into the protective clothing material - answer Contaminant molecule size ______: contaminants present in a gaseous or liquid state will absorb faster into protective clothing than those in a solid state - answer Contaminant physical state ______ temperatures will result in faster permeation of chemicals through protective clothing - answer Higher When decontaminating items, it's important to remember that many hazardous substances or chemicals ________ - answer Do not leave visible traces _____ are very effective in controlling spills and aiding in decontamination - answer Absorbants Exercise ____ in handling drums that are not intact and tightly sealed - answer Extreme caution As a precautionary measure, personnel should assume that unlabeled drums contain ____ until their contents are characterized - answer Hazardous material The appropriate procedures for handling drums depend on the _______ - answer Drum contents ______ may occur during handling of drums and other hazardous waste containers - answer Accidents A ______ is a narrow excavation made below the surface of the ground - answer Trench It should be noted that the ______ test is the least accurate testing method - answer Thumb penetration According to the OSHA soil classification system, Type A soil is the most _____ - answer Stable Who is responsible for classifying soils? - answer Competent person Trench boxes or shields must be approved by a _______ - answer Registered professional engineer There is no sloping requirement for _____ - answer Stable rock "Distress" in OSHA parlance, means that a cave-in is ______ - answer Imminent or likely to occur What time of wood is typically used in timber shoring? - answer Oak The ______ has overall responsibility for the safety of all persons involved with entry operations into confined spaces under his or her control - answer Supervisor The ______ continuously observes authorized entrants working in a confined space - answer Safety attendant The ______ ensures the conditions of a confined space entry permit are met - answer Supervisor The _____ must be trained to recognize hazardous conditions before they happen - answer Safety attendant According to OSHA, a confined space must have at least _____ in vertical height - answer 4ft Fatalities in confined spaces have resulted from ______ - answer All of the above Confined spaces can be ____ - answer Enclosed or open tops All confined spaces must be identified and classified as either non-permit-required confined spaces or _______ - answer Permit-required confined spaces One should never enter a permit-requiring confined space without a safety attendant on duty and adequate air testing - answer True If the confined space has contained hazardous substances, it is important for the confined space to be ______ before entry - answer Emptied and purged Air in the confined space should be tested for _____ - answer Oxygen content, flammability, and toxicity What are the OSHA acceptable limits for oxygen in a confined space? - answer 19.5%-23.5% What must you have prior to entering a confined space? - answer Confined Space Entry Permit Other than a confined space entry permit, what else must you have prior to entry? - answer Communications Training _____ be provided for all personnel associated with a confined space entry - answer Must For rescue operations, the rescue line should pass a - answer 2,000 pound test _______ provides the information needed to identify site hazards and to select worker protection methods - answer Site characterization ______ should be carried out when site hazards are largely unknown or when there is no need to go on site immediately - answer Perimeter reconnaissance The purpose of an ______ is to verify and supplement information from the off-site characterization - answer On-site survey The ______ outlines what needs to be accomplished and then prescribes procedures to protect the health and safety of the entry team - answer Site Safety Plan Upon completion of site characterization, activities that must be implemented include: - answer All of the above Site characterization includes: - answer All of the above Site characterization is done to: - answer Assess hazards at the waste site _____ is the study of chemical toxicity - answer Toxicology Humans and other living animals ______ in their response to any exposure to a chemical substance - answer Vary _____ are tiny particles produced from heating, volatilization and condensation of metals - answer Fumes Define HAZCOM - answer Hazard Communication ___________ is defined as how the body handles poison - answer Toxicokinetics Exposure to a hazardous substance can occur in two ways: - answer Directly or indirectly The most common toxic dose in the work environment comes through: - answer Inhalation _______ is a one time or an infrequent exposure to a high concentration of a substance - answer Acute A synergistic effect is considered to be _____ - answer 2 + 2 = 6 An additive effect is considered to be _____ - answer 2 + 2 = 4 Define PEL - answer Permissible exposure limit Define TWA - answer Time-weighted average The NFPA 704-M system ("hazard diamonds") identifies the hazards of materials in: - answer Reactivity, health, and flammability The white section ("home plate") of the NFPA 704-M Hazard Diamond provides information on: - answer Special hazards The blue section of the NFPA sign designates which hazard? - answer Health Define JSA - answer Job Safety Analysis _______ are those that cause physical injury, such as by fire or explosion - answer Physical hazards ______ or low-lying areas are particularly vulnerable to oxygen deficiency - answer Confined spaces _______ is the negative log of the concentration of H+ in solution - answer pH The ________ is a colorless, viscous fluid, is relatively insoluble in water, and can withstand high temperatures without degradation - answer PCB mixture Define PCB - answer Polychlorinated biphenyl The _____ of different types of materials is a potential hazard at any waste site - answer Mixing If there is an ignition source present, hydrogen gas will _______ - answer Explode The primary hazard of flammable ______ is the physical hazard of fire or explosion - answer Liquid solvents The ignition point is the temperature that the vapor must reach to ______ - answer Ignite The minimum concentration of flammable liquid vapor in air necessary for a mixture to ignite is called the ____ - answer Lower explosive limit An ______ is, by chemical definition, "any material that will gain electrons during a chemical reaction" - answer Oxidizer ______ not only mix oxides and flammable components but also readily decompose if subjected to friction, heat, shock, or contamination - answer Organic peroxides The hazard most likely to be encountered in incidents involving oxidizers is that the oxidizer ______ combustion - answer Intensifies Oxygen is _____ by a cooling process - answer Liquefied OSHA defines _______ as any substance that will spontaneously decompose, polymerize, or self-react under conditions of shock, temperature, or pressure - answer Unstable Water reactive metals tend to be soft metals that have _____ melting points - answer Low Treat unstable materials as _____ until they are proven otherwise - answer Explosives ______ hazardous materials exist as liquids or crystalline solids - answer Unstable Which of the following forms of radiation will generally not penetrate intact skin, but can be a serious hazard if inhaled? - answer Alpha Chronic doses are ______ amounts of radiation over a long period of time, such as our normal daily exposures over our lifetimes - answer Small Beta particles can be stopped by _____ - answer Aluminum foil _________ can by stopped by lead - answer Gamma rays ______ is a term which describes how sensitive a given cell is to radiation damage - answer Radiosensitivity ________ refers to the way particles and rays radiate from their source at speeds up to that of light - answer Radiation Any particles or rays given off (radiate) from a source that produces ionization is called ______ - answer Ionizing radiation Define STEL - answer Short Term Exposure Limit mg/m3 = - answer Milligrams per cubic meter Chemical concentrations can _______ exceed the ceiling limit - answer Never An increase in temperature ______ the vapor pressure of most chemicals - answer Increases In open spaces, toxic materials tend to be _______ in the atmosphere - answer Emitted _______ and thus atmospheric chemical conditions may change following the initial characterization - answer Site conditions _______ protection should be worn during this initial sampling - answer Level B The purpose of ______ is to determine the characteristics of a source material based on testing a small selected amount - answer Sampling Samples should be preserved at what temperature? - answer 4°C Hazardous waste samples are taken from the _____ of the contamination - answer Source Sampling can be one of the most _____ activities on a hazardous waste site - answer Dangerous For undisturbed soil cores 18-24in in length, a _____ is used - answer 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. - answer Bailers Decontaminate drilling and sampling equipment thoroughly after to avoid ____ of the next well - answer Cross contamination Prior to sampling a groundwater well ______ must be done - answer Purging Do not ______ other drums to reach the drum being sampled, unless absolutely necessary - answer Lean over Selection of sampling equipment is ____ on the type of container and the material to be sampled - answer Dependent Protect personnel by keeping them at a ______ from the drums being opened - answer Safe distance You should _____ the drum opening equipment to minimize worker exertion - answer Hang or balance A _______ is a written document that sets forth policies and procedures for responding to site emergencies - answer Contingency plan Who performs emergency decontamination? - answer Decontamination Station Officers A(n) ______ stands by, partially dressed in protective gear, near the Exclusion Zone ready to rescue any workers - answer Emergency rescue team