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HAZMAT First Responder Operational Exam QUESTIONS WITH COMPLETE Verified SOLUTIONS 2023.
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Class 1 (Hazard Class) - ✅✅✅-EXPLOSIVES- Any substance, article or device designed to function by explosion (extremely rapid release of gas and heat). Class 2 (Hazard Class) - ✅✅✅-GASES (FLAMMABLE or POISONOUS)-
Flammable Gas: Ignitable at low concentrations (<13%) Compressed Gas: Shipped at > 41psia Poisonous Gas: Toxic to humans of hazardous to health (or LC50 of not more than 5000 ml/m3 for laboratory animals). (i.e. toxic in low concentrations) Class 3 (Hazard Class) - ✅✅✅-FLAMMABLE AND COMBUSTIBLE LIQUIDS- Flammable Liquid: Flash point < 141 F Combustible Liquid: Flash point > 141 F Class 4 (Hazard Class) - ✅✅✅-FLAMMABLE SOLIDS-
Toxic to humans, hazardous to human health or presumed toxic to humans based upon tests on laboratory animals. Class 7 (Hazard Class) - ✅✅✅-RADIOACTIVE MATERIALS- Substance with specific activity > 0. micro-curies per gram. Class 8 (Hazard Class) - ✅✅✅-CORROSIVE MATERIALS- Substance that causes visible destruction of irreversible alterations in human skin tissue or a liquid that has a severe corrosion rate on steel or aluminum.
Class 9 (Hazard Class) - ✅✅✅-MISC. HAZARDOUS MATERIALS- Material with anesthetic, noxious or similar property that could cause extreme annoyance or discomfort to flight crew and prevent performance of assigned duties. Does not meet the definition of any other class.. None (Hazard Class) - ✅✅✅Other regulated material (ORM-D) ERG Page (White) - ✅✅✅Basic information and instructions (+placard table) ERG Page (Yellow) - ✅✅✅ID number index (materials listed by ID number)
Hazmat "events" can pose what 3 primary risks? - ✅✅✅1. Fire
Define First Responder at the "Awareness" level - ✅✅✅One likely to witness/discover a hazmat release and can initiate notifying authorities and take no further action. Define First Responder at the "Operations" level - ✅✅✅One who responds to hazmat release to protect nearby persons, environment or property (trained to act in a defensive fashion without trying to actually stop the release as could a "Technician") Hazmat Tactical Operations Acronym - ✅✅✅SIN CIA PCP DDD Hazmat Tactical Operations - SIN - ✅✅✅(S) - Safety
(I) - Isolation & Deny Entry (N) - Notifications Hazmat Tactical Operations - CIA - ✅✅✅(C) - Command/Management (I) - Identification & Hazard Assessment (A) - Action Planning Hazmat Tactical Operations - PCP - ✅✅✅(P) - Protective Equipment (C) - Containment & Control (P) - Protective Actions Hazmat Tactical Operations - DDD - ✅✅✅(D) - Decontamination & Cleanup (D) - Disposal
Ways hazmats can kill you? - ✅✅✅1. Toxicity,
What is an "exclusion/hot zone"? - ✅✅✅Area of isolation (only responders with a specific task & proper level of protective clothing in this zone). What is an "contamination reduction zone/warm zone"? - ✅✅✅Used to control areas like Safe Refuge and Decontamination (may use a reduced protective clothing level in this zone). What is a "support/cold zone"? - ✅✅✅Safe area for Command Post, Media, medical aid, etc. (No protective clothing or SCBA required).
Describe "Acute" effects? - ✅✅✅Range from no immediate effects to death within minutes. Acute effects may not manifest themselves immediately. Many substances will cause problems that won't show up for hours or even days after exposure. Describe "Chronic" effects? - ✅✅✅Not detectable for years--could cause death, injury, birth defects or illness. MSDS Terms - IDLH - ✅✅✅Immediately Dangerous to Life and Health MSDS Terms - TLV - ✅✅✅Threshold Limit Value
MSDS Terms - STEL - ✅✅✅Short Term Exposure Limit MSDS Terms - PEL - ✅✅✅Permissible Exposure Limit (Law) MSDS Terms - MLD - ✅✅✅Minimum Lethal Dose MSDS Terms - LD/LC 50 - ✅✅✅Lethal Dose/Lethal Concentration 50% MSDS Terms - LD lo - ✅✅✅Lethal Dose, low
Protective Clothing - Level A - ✅✅✅Best respiratory and skin protection. a) Positive pressure SCBA and b) Fully encapsulated, vapor tight chemical protective suit. Protective Clothing - Level B - ✅✅✅High level or respiratory protection but less for skin. a) Positive pressure SCBA and b) Hooded chemical resistive closthing. Protective Clothing - Level C - ✅✅✅Air purifying respirators and modest skin protection. a) Full or half-mask APR and b) Hooded chemical resistive clothing.
Protective Clothing - Level D - ✅✅✅Ordinary work uniform, (minimal protection) a) No respiratory protection. b) Minimal splash and vapor protection. c) May actually absorb vapors, gases and liquids. Typical protective clothing level of First Responder? - ✅✅✅Level D What is SCBA? - ✅✅✅Self-contained Breathing Apparatus What is APR? - ✅✅✅Air Purifying Respirator
