HAZMAT Operations WFD 45 Practice Test

These questions are part of the practice quiz. Start practicing

• Diverting is defined as which action?
• What is the device called that detects multiple gases, including invisible or odorless ones?
• Solubility is most accurately described as what?
• The lowest concentration that will burn when an ignition source is present is called the Lower Explosive Limit (LEL) or Lower Flammable Limit (LFL).
• How is gross decon accomplished?
• Which zone is known as the exclusion zone?
• Ratio of the density of a material to the density of a standard material.
• What is the term for triangular-shaped pattern of a hazmat release with a point source at the breach and a wide base downrange?
• Small amounts of radiation received over a long period of time.
• Which additive is used to give natural gas its rotten egg odor?
• This incident level is the least serious and the easiest to handle. Evacuation is limited to the immediate area.
• Which release pattern continues over time and increases concentration until release ends, then decreases?
• What unit is typically used to express particle size?
• Which option lists all five factors that may lead to loss of Situational Awareness?
• Which position is the primary point of contact for media and public information during hazmat incidents?
• To develop an IAP, you need to:
• Which of the following is an example of nonionizing radiation?
• The pressure exerted by a saturated vapor above its own liquid in a closed container called?
• What is a written or verbal plan for mitigating an incident?
• Which of the following constitutes the three basic protections from radiation?
• A chemical hazard that causes temporary, sometimes severe, inflammation to the eyes, skin, or respiratory system.
• CAN reports stand for which phrase?
• Where should the Command Post be established?
• Which position is responsible for health and safety of responders and the incident scene?
• Which term is described as a learning session not intended to assign blame?
• The IC must have ICS training and be trained, at a minimum, to the _______.
• Which of the following sets lists the three common causes of container stress?
• Diverting is defined as which action?
• The Incident Commander may delegate command authority to which command staff positions?
• Which term is used to indicate how volatile a substance is relative to its temperature and pressure conditions, typically referred to as the pressure of the vapor?
• Irregularly shaped pattern of an airborne hazardous material where wind and/or topography influence the downrange course from the point of release.
• During a transfer of command, what must the incoming IC do to confirm the transfer is official?
• What term describes the temperature at which a fuel will spontaneously ignite?
• Which incident level is described as the least serious and easiest to handle, with evacuation limited to the immediate area?
• Which items are included in CAN Reports?
• Which of the following teams is part of the Cold Zone according to the list?
• Which of the following lists the five factors that may lead to loss of Situational Awareness?
• Which incident level may require the services of a formal hazmat response team?
• If a solution has a pH of 7, it is considered what?
• Warm Zone is also known as what?
• The Incident Commander must address four factors for large-scale evacuations. Which are they?
• Which mode is described as 'Defensive Mode (medium risk to responders)'?
• Used to determine vapor density.
• Which term describes decon that is urgent, field expedient, and applied to direct exposure?
• Under ICS, who assumes Command of the incident?
• The microorganisms that cause infectious diseases are collectively known as what?
• Which gases expand rapidly when released, potentially threatening large areas?
• What is the pH range for Acids?
• What are the four types of Ionizing Radiation?
• Which term is used to determine vapor density?
• A ________ generally results from a rapid release of energy such as detonation, deflagration, and violent rupture.
• What are the three Control Zones used to divide incident hazard and access?
• Which substance can cause immune system overreactions (allergic reactions) in people or animals?
• The level is beyond the capabilities of the first responders on the scene and may be beyond the capabilities of the first response agency/organization having jurisdiction. This level may require the services of a formal hazmat response team.
• What term refers to substances produced by living organisms, while the organism itself is usually not harmful to people?
• ______ is responsible for the overall management of the incident's operational and support activities.
• When expressed as an explosive limit (LEL/UEL), vapor or gas confinement may result in a/an _____, whereas when measurements are expressed as a flammable limit (LFL/UFL) in an area where confinement is not a concern may result in a/an ______.
• What are the three main categories of protective clothing?
• What is the timing relationship between PIA and Incident Critique?
• Which item provides Activation Energy in the Reactivity Triangle?
• Acute exposures are usually associated with _____ doses.
• Which process describes a liquid turning into a gas when heated to its boiling point?
• Which option correctly lists all four emergency response communication services listed for the U.S.?
• Gamma radiation is high-energy photons. Which type of radiation does this describe?
• The least energetic form of radiation is ________, such as visible light, microwaves, and radio waves, whereas the most energetic (and hazardous) form of radiation is _______.
• Which document is primarily used to coordinate incident action at a hazmat incident?
• What is the boiling point of a liquid at sea level?
• Which gas is a chemical asphyxiant produced by incomplete combustion of organic materials?
• A container will breach when stressed beyond its ______.
• In the U.S., first responders should implement the _____ if they need to request outside assistance.
• Materials added to products that easily polymerize in order to control or prevent an undesired reaction.
• What distinguishes Incident Critique from Postincident Analysis (PIA) according to the material?
• Microscopic, single-celled organisms that cause disease in people either by invading the tissues or by producing toxins.
• Which term describes the ability of a chemical to remain in the environment when unconfined?
• Which types of gases expand rapidly when released, potentially threatening large areas?
• A chemical asphyxiant that is a byproduct of the incomplete combustion of organic materials.
• What are the 3 strategic modes of operation?
• The Cold Zone is best described as which of the following?
• What term describes a form of pressurized mist consisting of highly respirable, minute liquid or solid particles traveling at high speed?
• Two liquids that mix in all proportions are described as what?
• What is the purpose of Local Emergency Response Plan (LERP) in hazmat responses?
• Which of the following is a basic protection from radiation?
• Which description best matches Predicting Potential Outcomes in situational awareness?
• Which chemical hazard causes irritation to eyes, skin, or respiratory system?
• What are the elements of the basic protection strategy in regards to protection from radiation?
• A common sign of exposure to a base is a greasy or slick feeling of the skin, due to what process?
• Incident Critique is best described as which of the following?
• The temperature at which a liquid becomes a solid at normal atmospheric pressure.
• A product of complete combustion or organic materials.
• On the pH scale, which statement correctly describes acids and bases?
• A ______ structure controls hazmat incidents and allows coordinated response across multiple jurisdictions and agencies with overlapping authority and responsibility.
• What mode describes responders taking aggressive, direct action on the material, container, or process equipment involved in the incident?
• Which type of evidence is described as immediate, observable, and short-lived?
• What describes the force per unit area applied perpendicular to a surface?
• These describe how a material behaves in relation to physical influences.
• A vapor density greater than 1 indicates the vapor is heavier than air. Which statement correctly describes this relationship?
• What pH value is considered neutral (neither acidic nor basic)?
• What is it called when all of the material is released at one time, the concentration of gas or vapor in the cloud or plume decreases over time.
• What are the three components of the Reactivity Triangle?
• At concentrations lower than the LEL, the mixture is often too ____ to burn.
• Which standard provides ICS position-specific vest color codes?
• Emergency Decon is defined as which process?
• Which description best defines physical properties?
• Exposure to radiation received in a short period of time.
• Which statement best describes the relationship between gross decon and emergency decon?
• This refers to decon that is urgent and field expedient, applied to any person who has had direct exposure to contaminants.
• To develop a Site Safety Plan (SSP), you need to:
• Ball-shaped pattern of the airborne hazardous material that collectively rises above the ground or water.
• The minimum temperature at which a liquid or volatile solid gives off sufficient vapors to form an ignitable mixture with air near its surface is called what?
• What is the term for three-dimensional, slow-flowing liquid dispersion?
• A chemical hazard that causes an overreaction of the immune system (allergic reactions) in people or animals.
• Which process describes the transformation of a vapor in the air into a liquid?
• Which statement is true about vapor density relative to air?
• Which term describes characteristics of a material that do not involve its chemical nature?
• Damming is defined as which action?
• Which option correctly identifies the purpose of the Site Safety Plan (SSP) in hazmat incidents?
• Temperature at which liquids change to gas at a given pressure.
• Which statement is true about nonionizing and ionizing radiation?
• What is the process of injecting an odorant into a combustible gas so that it is detectable by smell?
• Which mode is described as not operating near hazmat and focusing on public protective action?
• CAN Reports are used to cover what type of information?
• What are the four methods of gross removal (gross decon)?
• In incident termination, which responder is responsible for terminating the incident?
• MEK (Methyl Ethyl Ketone) is an example of which solvent type?
• Diking is defined as which action?
• How many elements make up the fire tetrahedron?
• When should an Incident Critique occur?
• Retention is defined as which action?
• What is Level 1 of Situational Awareness?
• What is the process by which a liquid becomes a gas at normal atmospheric pressure?
• Which three energy types contribute to container stress?
• Liquids that have low flash points and burn easily are designated as what?
• These emit ionizing radiation.
• The simplest type of microorganisms that can only replicate themselves in the living cells of their hosts. They do not respond to antibiotics.
• Which release pattern occurs when all material is released in a moment and the cloud's concentration decreases over time?
• What are the three states of matter?
• What is the SMART mnemonic used for the development of strategies?
• What are the functional sections of the General Staff?
• Which chemical hazard causes involuntary muscle contractions (convulsions)?
• What is the term for a solid transitioning directly to a gas?
• Which level of Situational Awareness involves applying knowledge to decisions?
• What describes the thickness or flowability of a liquid at a given temperature?
• The temperature at which vapors will sustain burning is known as what?
• Which option is NOT a listed zone color?
• Which term describes the process of understanding and forecasting what's happening during an incident?
• Which of the following emits ionizing radiation?
• Which of the following items is included in situational awareness?
• Retention is defined as which action?
• A chemical hazard that causes involuntary muscle contractions (convulsions).
• What is the term for the transition of a solid directly into a gas?
• What property is defined as the ratio of the density of a material to that of a standard material?
• Damming is defined as which action?
• Liquids with higher flash points that do not burn as easily are called what?
• Two materials that do not readily dissolve into each other are called?
• Technical Decon is defined as which process?
• Which of the following is NOT an element of the fire tetrahedron?
• What is the primary difference between gross decon and emergency decon?
• Inhibitors are added to prevent what kind of undesired reaction?
• Which release type is characterized by a quick, broad dispersion forming a hemispheric pattern?
• Concentration increases over time until the leak stops or all of the product releases, then it decreases.
• When relinquishing Command, the person relinquishing must provide the person assuming Command with a clear picture of the situation via what?
• A management framework used to organize emergency incidents.
• Diking is defined as which action?
• The highest concentration that will burn when an ignition source is present is called the Upper Explosive Limit (UEL) or Upper Flammable Limit (UFL).
• What is the term for surface-following pattern of liquid hazmat affected by gravity and topographical contours?
• What is the pH range for Bases (alkalis)?
• The ______ _______ of a substance is the minimum temperature to which the fuel in air must be heated to self-sustained combustion without initiation from an independent ignition source.
• What term describes the ability of two or more substances to mix with or dissolve into each other?
• What are the 3 types of decon performed at hazmat incidents?
• The temperature at which a solid becomes a liquid at normal atmospheric pressure.
• Between acute and chronic doses of radiation, which is the body better equipped to handle?
• Which gas is produced by complete combustion of organic materials?
• Alcohol, methanol, and MEK are what type of solvents?
• A chemical reaction in which simple molecules combine to form long chain molecules is called?
• Which pattern is irregular in shape and downrange influenced by wind/topography?
• Which zone contains the Command Post, Staging Area, and specialized teams?
• Mass Decon is defined as which process?
• Which pattern describes a pattern that rises as a cloud and is generally a round, ball-shaped mass?
• The higher the temperature of a substance, the ____ its vapor pressure will be.
• A chemical hazard that prevents access to sufficient volumes of oxygen.
• Which term describes the pressure of a vapor in equilibrium with its liquid in a closed container?
• ______ have the delegated authority to direct, order, and control resources.
• What term describes the direct transition from a vapor to a solid without an intermediate liquid?
• Which positions are included in the Command Staff?
• In this mode of operation, responders do not operate near the hazardous materials/WMD, but focus on public protective action.
• What is the instrument used to detect invisible and odorless gases?
• What term expresses the percentage of a material by weight that will dissolve in water at ambient temperature?
• What is the process called when a solid changes directly into a gas?
• Which zone is the decontamination corridor located?
• What are the three levels of Situational Awareness?
• Biological hazards that cause disease are considered what?
• What term describes the weight of a given volume of pure vapor or gas compared to the weight of an equal volume of dry air at the same temperature?
• Which of the following are the three types of evidence?
• In this mode, responders seek to control or limit the emergency to a given area without directly contacting the hazardous materials/WMD involved.
• Which team is located in the Cold Zone?