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HAZMAT Final Exam Questions and Answers: 2024-2025, Exams of Engineering

Texas A & M University - TexarkanaEngineering

A comprehensive set of questions and answers covering key concepts in hazardous materials management. It is designed to help students prepare for a final exam in hazmat, covering topics such as hazardous materials identification, response procedures, and safety protocols. Multiple-choice questions with detailed answers, providing a valuable resource for understanding and applying hazmat principles.

Typology: Exams

2024/2025

Available from 02/13/2025

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HAZMAT FINAL EXAM QUESTIONS WITH THE BEST ANSWERS
2024-2025.
1) In United Nations model codes and regulations, hazardous materials are called? --
Answer ✔✔ Dangerous goods
2) A _______ may be voluntary, meaning that an agency such as a fire department
may not be required to adopt and follow it completely -- Answer ✔✔ standard
3) The OSHA document containing the hazardous materials response competencies is
commonly referred to as : -- Answer ✔✔ HAZWOPER
4) Per NFPA 472, a person with awareness level training is not considered to be a
first responder. Instead, these individuals are now referred to as awareness level: --
Answer ✔✔ personnel
5) NFPA 1072 defines how many mission-specific competencies? -- Answer ✔✔ 11
competencies
6) Per OSHA, first responders at the operations level are expected to have received
at least how many hours of training? -- Answer ✔✔ 8 Hours
7) Per OSHA regulation, individuals at what level respond to hazardous material
releases or potential releases for the purpose of stopping the release? -- Answer
✔✔ The technician level
8) Who is the person responsible for all incident activities, including the development
of the strategies and tactics and the ordering and release of resources? -- Answer
✔✔ Incident commander
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HAZMAT FINAL EXAM QUESTIONS WITH THE BEST ANSWERS

  1. In United Nations model codes and regulations, hazardous materials are called? -- Answer ✔✔ Dangerous goods
  2. A _______ may be voluntary, meaning that an agency such as a fire department may not be required to adopt and follow it completely -- Answer ✔✔ standard
  3. The OSHA document containing the hazardous materials response competencies is commonly referred to as : -- Answer ✔✔ HAZWOPER
  4. Per NFPA 472, a person with awareness level training is not considered to be a first responder. Instead, these individuals are now referred to as awareness level: -- Answer ✔✔ personnel
  5. NFPA 1072 defines how many mission-specific competencies? -- Answer ✔✔ 11 competencies
  6. Per OSHA, first responders at the operations level are expected to have received at least how many hours of training? -- Answer ✔✔ 8 Hours
  7. Per OSHA regulation, individuals at what level respond to hazardous material releases or potential releases for the purpose of stopping the release? -- Answer ✔✔ The technician level
  8. Who is the person responsible for all incident activities, including the development of the strategies and tactics and the ordering and release of resources? -- Answer ✔✔ Incident commander
  1. What entity acts as the liaison between local and state levels of authority, charged with the collection and dissemination of information relating to hazardous materials emergencies? -- Answer ✔✔ State Emergency Response Commission
  2. Hazards that include any occupancy type or facility that presents a high potential for loss of life or serious impact the to the community resulting from Fire, explosion, or chemical release are known as -- Answer ✔✔ Objective hazards
  3. Who produces the largest database on chemical information, including CAS Registry -- Answer ✔✔ Chemical Abstracts Service
  4. Your plan to address the incident begins with taking the basic actions known as: -- Answer ✔✔ SIN
  5. What container is glass, plastic, or steel and holds 5-15 gallons of product? -- Answer ✔✔ Carboy
  6. The NFPA 704 hazard identification system uses what shaped symbol? -- Answer ✔✔ Diamond
  7. The blue, red, and yellow shapes of NFPA 704 each contain a numerical rating in the range of: -- Answer ✔✔ 0 - 4 with 4 being the most hazardous
  8. In the NFPA 704 hazard identification system, the red area represents: -- Answer ✔✔ flammability
  9. The US military has developed its own marking system for hazardous materials. For materials that have explosion-with-fragments hazards, they are identified as: -- Answer ✔✔ Division 2 materials
  10. Placards are diamond-shaped indicators that are placed where on highway transport vehicles, railroad cars, and other forms of transportation carrying hazardous materials? -- Answer ✔✔ All four sides

administered over a specified period of time is called? -- Answer ✔✔ lethal concentration

  1. If a substance poses a dermal threat or is harmful when ingested, its toxicity will be expressed as a : -- Answer ✔✔ lethal dose value (LD)
  2. It is the _______ that distinguishes between an accident and a terrorist event, not the chemical or the container, -- Answer ✔✔ intent
  3. What type of container commonly holds compressed liquified gases? -- Answer ✔✔ Ton containers
  4. Intermodal tanks are both shipping and storage vessels. They hold between____ gallons of product. -- Answer ✔✔ 5000 and 6000
  5. What type of trailer would carry compressed gases such as hydrogen, oxygen, helium, and methane? -- Answer ✔✔ Tube trailer
  6. What are the most common special-use railcars emergency responders may encounter? -- Answer ✔✔ Cryogenic liquid tank cars
  7. The National Response Center, maintained and staffed by whom, should be notified if a hazard discharges into the environment? -- Answer ✔✔ U.S. Coast Guard
  8. Potential targets for terrorist activities include both natural landmarks and human- made structures. These can be classified into three broad categories: infrastructure, symbolic targets, and: -- Answer ✔✔ civilian
  9. Large-scale search and rescue incidents could require the response of urban search and rescue (USAR) task forces activated through whom? -- Answer ✔✔ Federal Emergency Management Agency (FEMA)
  10. What mnemonic is used most often in the emergency response community for symptoms of a nerve agent exposure? -- Answer ✔✔ SLUDGEM
  1. Responders can use what acronym to help think critically about the presence of secondary devices? -- Answer ✔✔ EVADE
  2. The first response objective should be to ensure: -- Answer ✔✔ your own safety while operating at the scene
  3. Two main organizations establish and publish the toxicological data typically used by hazardous materials/WMD responders: the American Conference of Governmental Industrial Hygienists (ACGIH) and the: -- Answer ✔✔ Occupational Safety and Health Administration (OSHA)
  4. The maximum concentration of a hazardous material that a worker should not be exposed to, even for an instant, is the: -- Answer ✔✔ threshold limit value/ceiling (TLV/C)
  5. The Emergency Response Guidebook (ERG) recommends an outdoor evacuation distance for a briefcase/suitcase bomb of: -- Answer ✔✔ 1850 ft (564m)
  6. Typically, response objectives fall into one of three main categories: offensive, defensive, and: -- Answer ✔✔ nonintervention
  7. Who "certifies" chemical protective garments? -- Answer ✔✔ Third party testing laboratories
  8. The process by which a substance moves through a given material on the molecular level is: -- Answer ✔✔ permeation
  9. _______ is the lowest level of chemical protective clothing, as determined by EPA regulation. -- Answer ✔✔ Level D ensemble
  10. _______ is a phase of the decontamination process where significant reduction of the amount of surface contamination takes place as soon as possible, most often accomplished by mechanical removal of the contaminant or initial rinsing from handheld hose lines, emergency showers, or other nearby sources of water. -- Answer ✔✔ Gross decontamination
  1. The visible part of combustion are carbon particles of varying sizes, ranging from large embers to particles you can't see with the naked eye. This collection of particulates---what we traditionally called smoke----is actually" -- Answer ✔✔ soot
  2. Studies performed in Paris, France, and Dallas County, Texas, focused on _____ and hydrogen cyanide (HCN) -- Answer ✔✔ carbon monoxide (CO)
  3. ____ could be partly responsible for rendering fire fighters and civilians incapable of self-rescue when exposed to smoke. -- Answer ✔✔ Hydrogen cyanide (HCN)
  4. An elevated _____ levels in cells is a key indicator of cyanide toxicity. -- Answer ✔✔ lactic acid
  5. _______ is the natural antidote for CO poisoning -- Answer ✔✔ Oxygen
  6. Hydroxocobalamin, a relatively benign substance with minimal side effects, is the antidote in which of these interventions for treating cyanide poisoning? -- Answer ✔✔ Cyanokit
  7. A short term exposure limits (SEL) represents a ____ exposure no more than four times a day. -- Answer ✔✔ 15 - minute
  8. _____ are one of the most common technologies used in postfire detection and monitoring. -- Answer ✔✔ Electrochemical sensors
  9. Which method of sampling requires a certain amount of sample air to move through a tub and can be accomplished by a responder using a piston style pump or a bellows pump? -- Answer ✔✔ Colorimetric tubes
  10. Most commonly, fire detection takes place when the fire is: -- Answer ✔✔ declared under control
  11. Level A suits are required to be _____ usually upon receipt from the manufacturer, after each use, and annually. -- Answer ✔✔ pressure tested
  1. Who sets the design, testing, and certification requirements for self-contained breathing apparatus (SCBA) in the United States? -- Answer ✔✔ NIOSH
  2. The physical destruction or decomposition of a clothing material owing to the chemical exposure, general use, or ambient conditions is: -- Answer ✔✔ Degradation
  3. Level____ protection is almost always built as an encapsulated one-piece suit with attached gloves and suit fabric that covers the feet. -- Answer ✔✔ A
  4. ____ meet NFPA 1992 and have been tested for penetration against a battery five chemicals. -- Answer ✔✔ liquid splash-protective ensembles
  5. The OSHA HAZWOPER standard states that the incident commander (IC) is _____ to ensure the use of SCBA -- Answer ✔✔ required
  6. The common hand signal "hand on top of the head making a tapping motion" communicates what message to the rest of the team? -- Answer ✔✔ "I'm okay"
  7. Hazardous materials responders commonly experience a variety of heat-related illnesses. Those complications include heat exhaustion, heat cramps, and heat stroke, all of which are usually preceded by: -- Answer ✔✔ dehydration
  8. Typically, only______ contaminated responder(s) is/are allowed in a wash-and- rinse station at a time and PPE remains in place until it has been thoroughly scrubbed and rinsed. -- Answer ✔✔ one
  9. Good documentation after the incident is directly correlated with: -- Answer ✔✔ how well organized the response was
  10. NFPA 1072 defines what as "the procedures, techniques, and methods used in the mitigation of hazardous materials/weapons of mass destruction (WMD) incidents, including containment, extinguishment, and confinement? -- Answer ✔✔ Control
  1. What does the EVADE acronym address -- Answer ✔✔ Secondary devices
  2. What service does the NFPA perform with regard to hazardous materials PPE? -- Answer ✔✔ Creates standards
  3. What does the A stand for in TRACEMP -- Answer ✔✔ Airborne
  4. What does the P stand for in TRACEMP? -- Answer ✔✔ Psychogenic
  5. What is the term for a catastrophic failure of a pressurized cylinder of liquid -- Answer ✔✔ BLEVE
  6. Level______ protective equipment when working with highly toxic vapor. -- Answer ✔✔ Level A
  7. The OSHA HAZWOPER regulation mandates that operations level hazardous materials/WMD responders must be trained respond in a(n)_____ fashion -- Answer ✔✔ defensive
  8. Which of the following is a critical factor in determining the appropriate level of PPE? -- Answer ✔✔ The physical state and characteristics of the material
  9. What is one type of intermodal tank designation? -- Answer ✔✔ IM- 101
  10. Hypoxia is defined as: -- Answer ✔✔ losing the capability of transporting oxygen in the blood.
  11. Common symptoms of smoke inhalation include: -- Answer ✔✔ headache and nausea
  12. How is the lid on an open-head drum fastened? -- Answer ✔✔ A ring and tightening hardware are applied.
  13. The concept of adsorption is most similar to: -- Answer ✔✔ Velcro
  1. At a hazardous materials incident, a hazardous materials safety officer, a decontamination team, and a hot zone entry team would report directly to the: -- Answer ✔✔ Hazardous materials branch director
  2. How does a closed circuit SCBA operate? -- Answer ✔✔ All inhaled and exhaled gas stays within the system
  3. What is the NFPA standard on vapor protective ensembles for hazardous materials emergencies? -- Answer ✔✔ 1991
  4. Monitors and meters provide information that: -- Answer ✔✔ is subject interpretation
  5. Smoke exposure can be: -- Answer ✔✔ cumulative, chronic, acute
  6. Once you have determined that a substance is leaking from a container, what should you do? -- Answer ✔✔ Isolate the material
  7. Aqueous film-forming foam works primarily by: -- Answer ✔✔ Forming a blanket to suppress vapors
  8. Which of the following is one of the "shuns" of evacuation? A) Evaluation B) Persuasion C) Information D) Habitation -- Answer ✔✔ Habitation
  9. What is the expansion ratio of cryogenic helium? -- Answer ✔✔ 750:
  10. What level of hazardous materials training enables personnel on scene only to recognize a potential hazardous materials emergency, protect themselves, isolate the area, and call for assistance? -- Answer ✔✔ Awareness
  1. The HAZWOPER regulations are located in: -- Answer ✔✔ OSHA 29 CFR
  1. Signs and symptoms of carbon monoxide poisoning are: -- Answer ✔✔ headache, nausea, and disorientation
  2. Which of the following statements about flouroprotein foam is correct? -- Answer ✔✔ It is effective on Class B fires
  3. Corrosives can be broken down into: -- Answer ✔✔ acids and bases
  4. Which agency establishes requirements for fire department hazardous materials training? -- Answer ✔✔ OSHA
  5. Which of the following statements about decontamination of disposable chemical-protective equipment is correct? -- Answer ✔✔ Equipment should be decontaminated sufficiently so that removal is safe for the wearer.
  6. What is the term for attempting to keep the hazardous materials on the site or within the immediate area of the release? -- Answer ✔✔ Confinement
  7. In general, chemical-protective garments should be tested at _____ intervals -- Answer ✔✔ 12 - month
  8. What are actions that stop a hazardous material from leaking or escaping its container? -- Answer ✔✔ Containment
  9. In which process is a material used to soak up and hold a liquid hazardous material like a sponge holds water? -- Answer ✔✔ absorption
  10. In hazardous materials preincident planning, once the agency has identified the threats in its jurisdiction, the agency should: -- Answer ✔✔ determine how it will respond
  1. A proximity suit is designed for: -- Answer ✔✔ limited exposures to high temperatures
  2. How large must the capacity of a liquid storage container be to qualify as a bulk storage container -- Answer ✔✔ more than 119 gallons
  3. Which of the following values is the maximum concentration to which an adult can be exposed 8 hours per day, 40 hours per week? -- Answer ✔✔ time-weighted average
  4. What is secondary contamination? -- Answer ✔✔ A contaminated person or object contaminating someone else, such as a rescuer
  5. What is the temperature at which a flammable liquid will ignite without the need for an external ignition source? -- Answer ✔✔ Ignition temperature
  6. When is application of high-expansion foam most appropriate? -- Answer ✔✔ When flooding an area with foam
  7. Vapor pressures are usually reported in reference at an assumed standard temperature of 20 degrees Celsius. Approximately what temperature is that, in everyday terms? -- Answer ✔✔ room temperature
  8. What is the acronym for the OSHA federal document containing hazardous materials response: -- Answer ✔✔ HAZWOPER
  9. Monkeys exposed to cyanide lost consciousness at ______parts per million (ppm) -- Answer ✔✔ 200
  10. Which of the following is a commonly used resource to determine the size of a vapor cloud? -- Answer ✔✔ Specialized computer software
  11. How would a fuel/air mixture in which there is not enough fuel be described? -- Answer ✔✔ Too lean
  1. What is distinctive about IMO type 5 containers? -- Answer ✔✔ They are high pressure vessels
  2. How is the concentration of a gas typically expressed? -- Answer ✔✔ as a percentage
  3. How is the flammable range related to the relative danger of a substance? -- Answer ✔✔ The wider the range, the more dangerous the substance is.
  4. Which of the following is a recommended treatment for heat exhaustion -- Answer ✔✔ Remove the patient from the heat source
  5. What type or container holds cryogens? -- Answer ✔✔ Dewar container
  6. What type of radiation packaging provides the least protection? -- Answer ✔✔ Type A
  7. What alternate technique for reducing vapor formation works with some hazardous materials? -- Answer ✔✔ Reducing their temperature
  8. What is the ICS term for a geographically defined area of operations -- Answer ✔✔ division
  9. What is the NFPA standard on liquid splash-protective clothing for hazardous materials response, operations -- Answer ✔✔ 1992
  10. What is the term for the amount of solute dissolved in a given amount of solution? -- Answer ✔✔ concentration
  11. Pipeline warning signs include a warning symbol, the pipeline owners name, and a(n) -- Answer ✔✔ emergency contact number
  12. Who is responsible for establishing rules about self-contained breathing apparatus use? -- Answer ✔✔ Authority having jurisdiction
  1. What is secondary contamination? -- Answer ✔✔ A contaminated person or object contaminating someone else, such as a rescuer
  2. Which section of the ERG would a fire fighter use when he or she knows the chemical name of the hazardous materials? -- Answer ✔✔ blue
  3. What level of hazardous materials training enables first responders to recognize a potential hazardous materials incident, isolate and deny entry to the other responders and the public, evacuate persons in danger, and take defensive action? -- Answer ✔✔ Awareness
  4. What is the approximate flash point of diesel fuel. -- Answer ✔✔ 120 degrees Fahrenheit
  5. The level of protection that structural firefighting protective clothing provides for first responders at a hazardous materials incident is best described as: -- Answer ✔✔ limited
  6. Which is a detailed profile chemical mixture provided by the manufacturer? -- Answer ✔✔ Safety data sheet (SDS)
  7. Are intermodal tanks shipping or storage vehicles? -- Answer ✔✔ they can be either shipping or storage vehicles
  8. Which of the following converts nutrients into energy-yielding molecules of adenosine triphosphate to fuel the cell's activities? -- Answer ✔✔ Mitochondria