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Firefighter HAZMAT OPS Exam 202 6 –
Actual Questions with Verified Correct Detailed
Answers
- What describes the nature of a material and the behaviors and interactions that occur at a molecular level? A. Physical properties B. Covalent properties C. Chemical properties D. Mechanical properties - CORRECT ANSWER>>>>C: Chemicial Properties
- During rescue operations, will perform the actual search, rescue and removal of victims from the hazardous area. A. The unit leader B. Medical responders C. Entry team members D. Backup team members - CORRECT ANSWER>>>>C: Entry team members
- Who must operate under the guidance of a hazmat technician, SOP/G or an allied professional when conducting technical decontamination? A. Ambulatory victims B. Technical level responders C. Operations level responders D. Responders being contaminated - CORRECT ANSWER>>>>C: Operations level responders
- During technical decontamination operations, typically perform such duties as setting up the decon corridor, assisting in doffing of PPE, and performing physical decontamination activities. A. Allied professional specialists B. Awareness Level responders C. Operations Level Responders D. Hazardous Materials Technicians - CORRECT ANSWER>>>>C: Operations level responders
- Responders can use potassium iodide (KI) starch paper to test: A. The pH of unknown chemicals. B. The concentration of toxic materials.
C. The oxidizing potential of unknown chemicals. D. For presence of fluoride ions and gaseous hydrogen fluoride. - CORRECT ANSWER>>>>A: the pH of unknown chemicals
- Dome roof tanks, spheroid tanks, and noded spheroid tanks are types of bulk facility storage tanks. A. Atmospheric B. Floating Roof C. Low Pressure D. Cryogenic Liquid - CORRECT ANSWER>>>>C: Low Pressure
- Where can responders typically find emergency shutoff devices on corrosive liquid tanks (MC/DOT 312)? A. In the control box under the tank. B. In the loading/unloading area near valves and piping. C. Behind the driver's side cab and on the left rear corner. D. Corrosive liquid tanks do NOT typically have emergency shutoff devices. - CORRECT ANSWER>>>>D: Corrosive liquid tanks do NOT typically have emergency shutoff devices
- What will provide the scene control required at hazmat and terrorist incidents to prevent interference by unauthorized persons, minimize contamination, and help ensure accountability of all personnel? A. Areas of safe refuge. B. Hazard control zones. C. Decontamination corridors. D. Personnel-tracking systems. - CORRECT ANSWER>>>>B: Hazard control zones
- What assistance can be provided by Disaster Medical Assistance Teams (DMAT)? A. Provide emergency medical care during a disaster or other event. B. Provide technical assistance and personnel to recover, identity, and process deceased victims. C. Manage large and/or complex incidents by providing full logistical support for receiving and distribution centers. D. Locate and extract victims from a contaminated environment, perform mass patient/casualty decontamination, and provide treatment as necessary to stabilize patients for evacuation. - CORRECT ANSWER>>>>A: Provide emergency medical care during a disaster of other event Under NIMS-ICS Command organization, the Safety Officer: A. Must be trained to the Hazardous Materials Technician level at all incidents.
B. High-pressure tank trucks (MC-331 cargo tanks) C. Non-pressure cargo tank trucks (MC-306 or DOT/TC 406 cargo tanks) D. Low pressure chemical tank trucks (MC-307 or DOT/TC 407 cargo tanks) - CORRECT ANSWER>>>>D: Low pressure chemical tank trucks (MC-307 or DOT/TC 407 cargo tanks) Which type of respiratory protection does not protect against oxygen-deficient or oxygen- enriched atmospheres? A. Supplied air respirators (SARs) B. Air-purifying respirators (APRs) C. Powered and supplied air hoods D. Self-contained breathing apparatus (SCBA) - CORRECT ANSWER>>>>B: Air-purifying respirators (APRs) What is one way that responses to terrorist incidents differ from other hazardous material incident responses? A. Terrorist events never involve large numbers of casualties. B. Law enforcement will have lead jurisdiction over all incidents involving terrorism. C. Unique supplies, equipment, and emergency response plans are required to terrorist incidents. D. Evidence collection will take precedence over the priorities of life safety, incident stabilization, protecting property, and the environment. - CORRECT ANSWER>>>>C: Unique supplies, equipment, and emergency response plans are requires to terrorist incidents. What complicates the development of an effective Incident Action Plan (IAP) for operations at an illicit laboratory? A. Most illicit lab responses involve multiple agencies, each with a specific jurisdiction. B. The IAP may not be complete before emergency conditions require operations to begin. C. Because there is no solid model for joint command among agencies, each response will have to create a new structure. D. Each agency responding is required to adhere to their own SOP/G's which may contradict those of other agencies. - CORRECT ANSWER>>>>A: Most illicit lab responses involve multiple agencies, each with a specific jurisdiction. What types of hazardous materials are usually contained in low pressure bulk storage tanks? A. Liquids such as milk, molasses, corn syrup, and fruit juices. B. Flammable and combustible liquids with low vapor pressures. C. Liquefied petroleum gases (LPG) such as propane and butane. D. Corrosives, typically acids as acetyl chloride, hydrochloric acid, and sodium hydroxide. - CORRECT ANSWER>>>>B: Flammable and combustible liquids with low vapor pressures.
Which organizational function of the NIMS-ICS has the delegated authority to direct, order, and control all resources? A. Logistics Section B. Command Section C. Operations Section D. Finance/Administration Section - CORRECT ANSWER>>>>B: Command Section Which technical decontamination techniques uses a material to change the chemical structure of a hazardous material? A. Washing B. Sanitation C. Evaporation D. Chemical Degradation - CORRECT ANSWER>>>>D: Chemical Degradation A biological attack with a disease agent has the potential to become an epidemic. A. Chronic B. Contagious C. Biological toxin D. Non-Communicable - CORRECT ANSWER>>>>B: Contagious Normally, personnel trained below the Technician level do not attempt offensive actions such as leak control; however, Operations responders with appropriate training, procedures, equipment, and PPE can take offensive actions with: A. Materials in containers intended for retail sale. B. Solid materials such as dust, granules, and powders. C. Compressed gases in containers of 75 cubic feet or smaller. D. Gasoline, diesel, liquefied petroleum gas (LPG), and natural gas fuels. - CORRECT ANSWER>>>>D: Gasoline, diesel, liquefied petroleum gas (LPG_, and natural gas fuels. Generally, self-reading dosimeters (SRDs) only measure: A. Alpha and beta radiation B. Gamma and X-ray radiation C. Radiation at or above 50% of the NFPA exposure limits. D. Radiation at or below 50% of the NFPA exposure limits. - CORRECT ANSWER>>>>B: Gamma and X-ray radiation Responders who apply firefighting foam to the surface of a pool of flammable or combustible
A. The mitigation efforts take longer than intended. B. Critical evidence in a criminal case is disallowed. C. He or she does not understand how to use monitoring and sampling devices correctly. D. He or she uses monitoring and sampling devices in accordance with manufacturer's guidelines. - CORRECT ANSWER>>>>C: He or she does not understand how to use monitoring and sampling devices correctly. How can responders use pH paper to test the pH of hydrocarbons with high vapor pressure? A. Plunge the pH paper into the hydrocarbon. B. Wave the dry pH paper in the vapor space above the hydrocarbon. C. Wet the pH paper with distilled water and plunge the pH paper into the hydrocarbon. D. Wet the pH paper with distilled water and wave the pH paper into the hydrocarbon. - CORRECT ANSWER>>>>B: Wave the dry pH paper in the vapor space above the hydrocarbon. What health effects may be produced by high levels of radiation received over a short time (acute doses)? A. Confusion, dizziness, and short-term memory loss. B. Flashing lights and blind spots in vision, accompanied by headache. C. Reduced blood count, hair loss, nausea, vomiting, diarrhea, and fatigue. D. No long-term health effects as the body has enough time to replace dead or nonfunctioning cells with healthy ones. - CORRECT ANSWER>>>>A: Confusion, dizziness, and short-term memory loss. What devices measure the amount of flammable vapors and gases in the atmosphere? A. Gas-filled detectors B. Fluoride test meters C. Combustible gas indicators (CGIs) D. Time-integrated sampling canisters - CORRECT ANSWER>>>>C: Combustible gas indicators (CGIs) What response objective may include actions such as incident level identification and public emergency information? A. Notification B. Product Control C. Evidence Preservation D. Isolation and Scene Control - CORRECT ANSWER>>>>D: Isolation and Scene Control What actions use time as a protective strategy in order to reduce the likelihood that responders
will suffer serious harm at a hazardous materials incident? A. Implement hazard-control zones and maximize the distance from potential hazards. B. Restrict work times in the hot zone, and frequently rotate personnel on work groups. C. Place a physical barrier between a responder and the hazard such as a wall, building, or apparatus. D. Require responders who work in the hot zone to take additional time in rehabilitation, up to twice as much as other responders. - CORRECT ANSWER>>>>A: Implement hazard- control zones and maximize the distance from potential hazards. If the threat of a BLEVE or other dangerous situation develops during a hazmat response, it may become necessary to: A. Withdraw immediately B. Seek an area of safe refuge C. Initiate a Mayday response D. Travel to an emergency medical facility for treatment - CORRECT ANSWER>>>>A: Withdraw immediately What action should responders take if they come in contact with contaminants while conducting emergency decon? A. They should initiate a Mayday response. B. Establish a secondary decontamination line. C. They may need to decontaminate themselves. D. Travel to an emergency medical facility for treatment. - CORRECT ANSWER>>>>C: They may need to decontaminate themselves. Who is responsible for maintaining both immediate and functional supervision over teams to ensure their safety during a rescue operation? (pg. 593) A. The unit leader B. The backup team C. The Logistics Officer D. The Incident Commander - CORRECT ANSWER>>>>A: The unit leader What is the least energetic form of radiation? A. Gamma radiation B. Ionizing radiation C. Ultraviolet radiation D. Nonionizing radiation - CORRECT ANSWER>>>>D: Nonionizing radiation
a broken or moist skin, blood, or bloody fluids including: A. Using disposable gloves and changing gloves between patients. B. Restraining victims who exhibit symptoms of contagious diseases. C. Wearing an air-purifying respirator with an organic vapor cartridge. D. Beginning prophylactic antibiotic therapy as soon as the incident stabilizes. - CORRECT ANSWER>>>>A: Using disposable gloves and changing gloves between patients. What component of risk analysis is a continuous process involving all responders that includes size-up, interpreting signs, assessing what is happening over the life of the incident, and predicting outcomes based on a plan of action? A. Maximizing benefits B. Situational awareness C. Monitoring and detection D. Effective communication - CORRECT ANSWER>>>>B: Situational awareness What is the decontamination of large numbers of people in the fastest possible time to reduce surface contamination to a safe level, with or without a formal decontamination corridor or line? A. Mass decontamination B. Technical decontamination C. Homogeneous decontamination D. Comprehensive decontamination - CORRECT ANSWER>>>>A: Mass decontamination What is the term for the ratio of the density (mass per volume) of a material to the density of a standard material, usually an equal volume of water, at standard conditions of pressure and temperature? A. Atomic weight B. Polar solubility C. Specific gravity D. Atmospheric density - CORRECT ANSWER>>>>C: Specific gravity During an evacuation of responders from the hot zone, what information should be communicated to the appropriate personnel? A. The status of mission-related tasks
B. The estimated time spent in the hot zone C. The remaining capabilities of equipment D. The type and degree of decontamination needed - CORRECT ANSWER>>>>D: The type and degree of decontamination needed When using an adsorbent for technical decontamination of a hazardous liquid, it is important to make certain the adsorbent material is: A. The most cost-effective option available B. Compatible with the hazardous material C. Sold by an approved, licensed equipment vendor D. Available in packages not to exceed 25 pounds (12.5kg) - CORRECT ANSWER>>>>B: Compatible with the hazard material What term describes the ability of two or more gases or liquids to mix with or to dissolve into each other? A. Miscibility B. Insolubility C. Persistence D. Luminescence - CORRECT ANSWER>>>>A: Miscibility The mass decontamination plan is part of? A. NIMS-ICS Deployment guidelines B. OSHA decontamination regulations C. Each agency's overall emergency response plan D. The EPA Recourse Conservation and Recovery Act (RCRA) laws and regulations. - CORRECT ANSWER>>>>C: Each agency's overall emergency response plan What type of decontamination uses chemical or physical methods to thoroughly remove contaminants from responders (primarily entry team personnel ) and their equipment and is usually conducted within a formal decontamination line or corridor following gross decontamination? A. Mass decontamination B. Gross decontamination C. Precision decontamination D. Technical decontamination - CORRECT ANSWER>>>>D: Technical decontamination When a fixed facility, piping, or pipeline remote shutoff valve is operated to stop the flow of product: A. A loud alarm, flashing light, or both will be activated B. The flow of product should stop almost immediately with no additional release.
D. Institute a hand signal or coded word to communicate to victims that need to be quiet and wait for instructions. - CORRECT ANSWER>>>>C: Communicate with the victims, provide clear and simple instructions, and clearly mark decon corridors. What is an example of the action option of protecting/defending in place? A. Using hose streams to diffuse a plume B. Covering/containing a hazardous material spill C. Diverting material toward a drain D. Evacuating an are when flames impinge on a pressure container - CORRECT ANSWER>>>>A: Using hose streams to diffuse a plume What is a service offered by emergency response centers, such as the Chemical Transportation Emergency Center ( CHEM - TREC ), Canadian Transport Emergency Center ( CANUTEC ), Civil Protection Agency ( CENACOM ), and Emergency Transportation System for the chemical industry ( SECTIQ )? A. Dispatch incident management teams B. Contact the shipper of the material or other exports C. Alert local medical centers to possible incoming victims D. Initiate reverse 9- 1 - 1 calls to residents in the hazard area - CORRECT ANSWER>>>>B: Contact the shipper of the material or other exports What monitor detects low concentrations of many organic and some inorganic gases and vapors, and makes a good survey instrument? A. Colorimetric indicator tubes B. Photoionization detectors ( PID's ) C. Direct reading dosimeters ( DRD's ) D. Combustion gas indicators ( CGI's ) - CORRECT ANSWER>>>>B: Photoionization detectors (PID's) Dilution of liquid materials rarely has practical applications at hazmat incidents in terms of spill control, because: A. It is difficult to bring water to the majority of spill locations. B. It requires huge volumes of water that may create runoff problems, C. Of the specialized equipment and large number of personnel required. D. The dangers of unidentified water reactive materials present a significant hazard. - CORRECT ANSWER>>>>B: It requires huge volumes of water that may create runoff problems. Once the incident Action Plan is developed, the will spell out PPE requirements for tasks performed at the incident. A. Medical plan B. Site safety plan C. Current situation summary D. Strategies / incident objectives - CORRECT ANSWER>>>>D: Strategies / incident
objectives What weather condition is a critical factor to evaluate when working outside, as it may cause rapid heat loss leading to cold emergency? A. Snowfall B. Wind chill C. Cloud cover D. Low temperature - CORRECT ANSWER>>>>B: Wind chill Per the ERG, why is the initial isolation zone one mile ( 1.6 km ) for a pressure tank railroad car involved in fire? A. The tank my BLEVE B. They are enclosed spaces C. The contents will displace oxygen D. The contents pose significant respiratory hazards - CORRECT ANSWER>>>>A: The tank may BLEVE Evacuation may be a better option than sheltering in place when are involved. A. Biological toxins B. Corrosive vapors C. Explosive vapors or gases D. Liquid hazards with low vapor pressures - CORRECT ANSWER>>>>C: Explosive vapors or gases The only way to confirm if radiation is present at an incident is to: A. Use a radiological monitoring equipment B. Call for expert guidance from state or federal experts C. Observe the symptoms of radiation exposure in victims D. Find a radiation exposure or radiological dispersal device - CORRECT ANSWER>>>>A: Use radiological monitoring equipment When the chemical agents known as blood agents affect the body, they: A. Attack and cause tissue damage to the lungs B. Kill quickly by attacking the nervous system C. Interfere with the body's ability to use oxygen D. Burn and blister the skin or any other part of the body they contact - CORRECT ANSWER>>>>C: Interfere with the body's ability to use oxygen Which division in hazard class 1: Explosives have a mass explosion hazard that would affect almost the entire load instantaneously? A. Division 1. B. Division 1.
C. Search the are for secondary devices and booby traps D. Station a responder inside the door to control the scene - CORRECT ANSWER>>>>A: Stop, get out, and report it to authorities immediately What hazard class includes reactive substances or articles with a great deal of potential energy that may rapidly expand and release upon activation? A. Class 1: Explosives B. Class 3: Flammable Liquids C. Class 4: Flammable Solids; Spontaneously Combustible, and Dangerous When Wet D. Class 7: Radioactive Materials - CORRECT ANSWER>>>>A: Class 1: Explosives What is the most common type of IED found in the United States? A. Pipe Bombs B. Pressure cooker bombs C. Carbon dioxide ( CO2 ) grenades D. Satchel, backpack, briefcase, or box bombs - CORRECT ANSWER>>>>A: Pipe Bombs
- What resources provide responders with the exposure limits for many materials? A. Facility chemical inventory reports B. Shipping papers or receiving documents C. The emergency response guidebook ( ERG ) D. The NIOSH Pocket Guide to Hazardous Materials - CORRECT ANSWER>>>>B: Shipping papers or receiving documents What type of illicit lab might contain wires, fuses, batteries, or switches; tubes and pipes; or ammonium nitrate? A. Biological lab B. Explosives lab C. Methamphetamine lab D. Chemical weapons lab - CORRECT ANSWER>>>>B: Explosives lab A more thorough triage of injured victims will be conducted: A. After transport to a witness interview area B. After victims have gone through the decon process C. In an area of refuge in the decontamination corridor D. In the hot zone, before transport to the decontamination area - CORRECT ANSWER>>>>B: After victims have gone through the decon process Which of the following should be evaluated before attempting a rescue? A. Medical assistance available on site B. Ability of the victim to communicate C. The location and viability of the victim
D. Readiness of the technical decontamination - CORRECT ANSWER>>>>C: The location and viability of the victim. Which hazard class includes materials that have an anesthetic, noxious, or other similar property that cause distraction or discomfort to crew members during transportation? A. Class 4: Flammable Solids, Spontaneously Combustible, and Dangerous When Wet B. Class 5: Oxidizers and Organic Peroxides C. Class 7: Radioactive Materials D. Class 9: Miscellaneous Materials - CORRECT ANSWER>>>>D: Class 9: Miscellaneous Materials Detection and monitoring devices not calibrated and maintained in accordance to the manufactures' directions may pose a safety hazard by: A. Leaking caustic battery acid B. Creating an electrical short hazard C. Unexpectedly overheating / smoking D. Giving inaccurate and misleading readings - CORRECT ANSWER>>>>D: Giving inaccurate and misleading readings Leak control is an offensive product control strategy that attempts to: A. Break the material into small droplets and encapsulate them B. Confine a hazardous material that has been released from its container C. Contain a material in its original container, or transfer it to another container D. Mix a hazardous material with water or air lower the concentration to safe levels - CORRECT ANSWER>>>>B: Confine a hazardous material that has been released from its container Emergency response centers, such as the Chemical Transportation Emergency Center ( CHEM - TREC ), Canadian Transport Emergency Center ( CANUTEC ), Civil Protection Agency ( CENACOM ), and Emergency Transportation System for the Chemical Industry ( SETIQ ) can assist responders by: A. Providing copies of local emergency response plans B. Alerting and dispatching regional incident management teams (IMT) C. Providing 24-hour technical assistance to personnel responding to hazmat incidents D. Managing large and/or complex incidents and providing full logistical support for receiving and distribution centers - CORRECT ANSWER>>>>C: Providing 24-hour technical assistance to personnel responding to hazmat incidents Mass decontamination at hazardous materials incidents: A. Creates no additional environmental hazards B. Allows victims to be decontaminated without having to remove any clothing C. Can be implemented quickly using a limited amount of personnel and equipment
A. Safety B. Liaison C. Logistics D. Public information - CORRECT ANSWER>>>>A: Safety In order to prevent damage or malfunction, PPE must be stored properly according to: A. OSHA regulations B. A factory authorized technician C. Manufacturers' recommendations D. The local emergency management plan - CORRECT ANSWER>>>>C: Manufacturers' recommendations What type of bulk cargo tank consists of individual steel cylinders stacked and mounted together? A. Compressed gas/tube trailers B. High pressure tank trucks ( MC- 331 cargo tanks ) C. Cryogenic tanks trucks ( MC-338, TC-338, or SCT-338 cargo tanks ) D. Corrosive liquid tank trucks ( MC-312 or DOT/TC-412 cargo tank trucks - CORRECT ANSWER>>>>A: Compressed gas/tube trailers What procedures should responders follow when issuing notifications of a hazardous materials incident? A. OSHA mandate notifications B. Local SOP's C. Directions of an Allied Professional D. Notifications listed in the EERG white pages - CORRECT ANSWER>>>>B: Local SOP's What is and effective strategy to protect first responders at hazmat incidents? A. Using time, distance, and shielding B. Evacuation, escape, and sheltering C. Rescue, decontamination, and triage D. Reminding responders to stop, look, and listen - CORRECT ANSWER>>>>A: Using time, distance, and shielding Why must responders to a hazardous materials incident be aware of open flames, static electricity, radiant heat, and activation of flashlights or cell phones? A. They can disturb an incident scene and contaminate or destroy evidence B. They can cause deterioration and permeation of chemical-resistant PPE C. They are potential ignition source that could ignite flammable gases and vapors D. They can distort the electronic readings of hazardous materials detection and monitoring devices - CORRECT ANSWER>>>>C: They are potential ignition source that could ignite flammable gases and vapors
Which hazard-control zone is the site for the multiagency command post ( CP ), staging area, and triage/ treatment/rehabilitation? A. Hot zone B. Cold zone C. Warm zone D. Contamination reduction zon - CORRECT ANSWER>>>>B: Cold zone Responders should bring emergency/mass decon operations quickly; the speed necessary will be determined by: A. The number of victim's present B. The anxiety level of the victim's C. The number of personnel available D. The material and type of incident involved - CORRECT ANSWER>>>>D: The material and type of incident involved Materials released from will tend to pool close to the ground and will initially be visible as a fog or cloud; most will displace oxygen, and some will create an explosive environment. A. Cryogenic liquid tanks B. Underground storage tanks C. Low pressure storage tanks D. Non-pressure/atmospheric storage tanks - CORRECT ANSWER>>>>A: Cryogenic liquid tanks Supplied air respirator ( SAR ) apparatus are limited by: A. The limit duration of the air supply B. The need to know the hazard present in the atmosphere C. The potential for mechanical or heat damage to the air supply line D. The need for the oxygen level to be between 19.5 and 23.5 percent - CORRECT ANSWER>>>>C: The potential for mechanical or heat damage to the air supply line To use pH meter to test liquid materials: A. Insert the probe into the material being tested B. Place a drop of the material being tested on the meter sensor C. Place a drop of the material on the sample plate, close the sample plate, and hold the meter to a natural light D. Hold the tip of the meter above the liquid, then gently pump vapors into the meter until the reading is shown - CORRECT ANSWER>>>>A; Insert the probe into the material being tested
