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FIREFIGHTER HAZMAT OPS TEST
FINAL EXAM 2025 LATEST UPDATE|
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Compared to other types of incidents to which first responders are commonly called, hazardous material incidents typically ___________. - ✔✔✔more complicated By which acronym are the federal regulations detailing hazardous materials response competencies collectively known? - ✔✔✔HAZWOPER Which of the following actions is permitted for operations-level hazardous materials responders? - ✔✔✔closing remote valve Which federal agency enforces and publicizes laws and regulations governing transportation of hazardous materials? - ✔✔✔department of transportation What is the minimum level of hazardous materials training for a hazardous materials officer? - ✔✔✔operations Ideally, when should response to a hazardous materials incident begin? - ✔✔✔during pre incident planning What is the minimum level of hazardous materials training required to take defensive actions? - ✔✔✔operations What is the temperature at which a flammable liquid will ignite without any external ignition source? - ✔✔✔ignition temperature
What is the vapor density of air? - ✔✔✔ 1 According to the NFPA, what is defined as a material capable of posing an unreasonable risk to health, safety, or the environment? - ✔✔✔Hazard What is the term for the process by which people, animals, the environment, and equipment come into contact with a hazardous material? - ✔✔✔exposure Which mnemonic helps fire fighters remember the seven categories of harm that can be caused by terrorism agents or other hazardous materials? - ✔✔✔TRACEMP Which of the following is the most toxic nerve agent? - ✔✔✔VX What is the maximum capacity of an intermodal tank? - ✔✔✔6,000 gallons (22,700 L) What does the NFPA 704 marking system address? - ✔✔✔Hazardous materials at fixed facilities What is the typical maximum pressure reading for a standard oxygen cylinder used in the medical field? - ✔✔✔2,000 psi (13,800 kPa) Which cargo is carried by a highway tanker that has a smaller-diameter tank with several reinforcing rings around the circumference? - ✔✔✔corrosives Which free service can be accessed to connect fire fighters with chemical manufacturers, chemists, and other specialists during a chemical incident? - ✔✔✔Chemtrec What is the term for shipping papers carried on railroad transportation? - ✔✔✔waybill
chemical exposure, general use, or ambient conditions? - ✔✔✔Degradation Which control zone is referred to as the safe zone? - ✔✔✔cold zone Skin contact with an alkaline material is most likely to cause __________. - ✔✔✔dissolving skin tissue What is the recommended treatment for heat exhaustion? - ✔✔✔rest and rehydration Which of the following occupies the warm zone? - ✔✔✔Decontamination corridor What is the term for the placement of impervious materials to form a barrier so as to limit the spread of a liquid hazardous material? - ✔✔✔diking During use of the shelter-in-place technique, the ventilation system should be __________. - ✔✔✔turned off What is the most reliable way to determine how far to extend actual evacuation distances? - ✔✔✔detection equipment Following mass decontamination, victims should be directed to the __________. - ✔✔✔triage area Which statement about runoff during emergency decontamination is correct? - ✔✔✔an effort should be made to divert runoff from drains, streams, and ponds A contaminated victim coming into physical contact with a rescuer is an example of ________. - ✔✔✔cross-contamination
- Turnout gear - ✔✔✔can stop alpha and beta particles Controlled burning of liquid or gas to dispose of or reduce product - ✔✔✔Flaring
Level D PPE - ✔✔✔Coveralls and Eye Protection Level C PPE - ✔✔✔turnout gear Level B PPE - ✔✔✔when hazard calls for more respiratory protection vs skin protection (splash protective clothing and scba) Level A PPE - ✔✔✔fully encapsules the hazardous materials tech, including his or her self contained breathing apparatus
- Permeation- - ✔✔✔process by which a substance moves through a given material on the molecular level bill of lading - ✔✔✔highway or road msds way bill - ✔✔✔railroad msds pipeline markings need - ✔✔✔warning symbol pipeline owner name emergency contact # pesticide labels - ✔✔✔active ingredients by name EPA establishment #(where it's manufactured) EPA registration #(proof it's registered) V agent (VX), a nerve agent - ✔✔✔most deadly chemical Radioactive materials are transported in heavy containers. - ✔✔✔type a, type b, type c
Corrosives Sulfuric acid, phosphoric acid, sodium hydroxide Smaller diameter than MC307 and has reinforcing rings around the tank MC 312/DOT 412 - ✔✔✔ MC 331 - ✔✔✔High Pressure Cargo Tank (300 psi) Internal working pressure 250 psi Rounded ends Ammonia, propane, Freon, butane Explosion hazard if flame impingement Spring loaded relief valves Set at 110% of designated maximum working pressure MC 331 - ✔✔✔ MC 338 - ✔✔✔Cryogenic Liquid Tank Car Low pressure tank with insulation Low temperatures Relief valve near control box Occasional small puffs of white vapor may vent here, this is considered a normal part of operation for the valve MC 338 - ✔✔✔ Compressed gas tube trailers - ✔✔✔Carry compressed gases Hydrogen, oxygen, helium, methane High volume transportation vehicles made up
of several individual cylinders banded together Operating pressure of 3000 to 5000 psi Compressed gas tube trailers - ✔✔✔ dry bulk carrier - ✔✔✔Dry goods Powders, pellets, fertilizers, grain Not pressurized, but may use pressure to off load contents V shaped with bottom mounted controls dry bulk carrier - ✔✔✔ low pressure rail car - ✔✔✔Visible valves and piping w/o protection Internal pressure less than 25 psi Pressure tank cars - ✔✔✔protected top mounted fittings 8 step process - ✔✔✔-Site Management And Control
- Identify The Problem damage from bases and acids - ✔✔✔-acids/corrosives damage skin right away
- bases take longer to damage penetration - ✔✔✔flow through of hazard material through zippers, seams, pin holes or other imperfections Permeation - ✔✔✔Hazardous materials move through suit on molecular level
Vapor Density - ✔✔✔weight of a vapor compared to air air = 1 Lethal Dose (LD50) - ✔✔✔death by any route other than inhalation Lethal Concentration (LC50) - ✔✔✔Amount that kills 50 percent via inhalation Non Bulk Packaging - ✔✔✔Drums, bags, compressed gas cylinders
- Bags are multi layered cardboard containers and carry things like fertilizers, ammonium nitrate & calcium hypochlorite. Keep from getting wet, typically carry oxidizers
- Drums: Open and Closed Head (use bung wrench) Bulk packaging - ✔✔✔Large containers such as fixed tanks, highway tanks and rail tanks Level I (Lowest) - ✔✔✔Small hazard, usually single engine, turnouts & SCBA, small fuel spill Level II (Medium) - ✔✔✔HazMat Team needed, Chem. Protective PPE, possible evacuation and decon, a sulfuric acid tanker overturns and is leaking Level III (High) - ✔✔✔Highly toxic chemicals, possible large scale evacuation, federal assistance needed confinement - ✔✔✔using materials or barriers to keep a leak in a certain area (limits direct exposure to responders) Containment - ✔✔✔physical action of stopping a leak such as
- plugging
- patching absorption - ✔✔✔the process or action by which one thing absorbs or is absorbed by another. Adsorption - ✔✔✔Containment adheres to the surface of the added material Terrorist Events - ✔✔✔beware of secondary devices LEPC Local Emergency Planning Committee - ✔✔✔A diverse Emergency Planning Group responsible for Hazardous Materials planning in each county in Illinois title III - ✔✔✔The section of SARA that provides for Emergency Response Plans what tanks have operating pressure above 15 PSI - ✔✔✔low pressure tanks The EPA level of protection often considered appropriate for defensive action of the operations level is? - ✔✔✔Level B Which type of cargo tank truck has a valving and unloading control box under the tank? - ✔✔✔MC 306/ non-pressure carrier Which cargo tank trucks have frangible disks, fusible plugs or Christmas tree vents on top? - ✔✔✔MC 307/ low pressure carrier Large hemispherical heads on both ends of an uninsulated tank are characteristic of which type of cargo tank truck - ✔✔✔MC 331 high pressure carrier
class 9 - ✔✔✔other Yellow-bordered section - ✔✔✔to use 4 digit UN number Blue bordered pages - ✔✔✔to look up by name of chemical Green Bordered Pages - ✔✔✔Initial Isolation & Protective Actions Distances. Orange Bordered pages - ✔✔✔gives details on specific chemical type and precautions if chemical is highlighted in green - ✔✔✔inhalation hazard refer to green pages for protective actions and distances
