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Firefighter HAZMAT Operations Test: Comprehensive Questions and Answers, Exams of Safety and Fire Engineering

A comprehensive set of questions and answers related to firefighter hazmat operations. It covers various aspects of hazardous materials response, including identification, handling, and safety procedures. Useful for individuals preparing for hazmat certification exams or seeking to enhance their knowledge in this field.

Typology: Exams

2024/2025

Available from 03/17/2025

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FIREFIGHTER HAZMAT OPS TEST
FINAL EXAM 2025 LATEST UPDATE|
questions|COMPREHENSIVE
QUESTIONS AND VERIFIED
ANSWERS|already graded A+
Save
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
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FIREFIGHTER HAZMAT OPS TEST

FINAL EXAM 2025 LATEST UPDATE|

questions|COMPREHENSIVE

QUESTIONS AND VERIFIED

ANSWERS|already graded A+

Save

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