Hazmat Operations, Top Exam Questions and answers, 100% Accurate. Verified.

Hazmat Operations, Top Exam Questions and answers, 100% Accurate. Verified. What is an Operations Level Responder? - Person who respond to HazMat/WMD incidents for the purpose of implementing or supporting actions to protect nearby persons, the environment, or property from the effects. Are NOT used in offensive tactics, but on defensive. What tasks will an operational level responder be expected to perform? - Analyze, plan, implement, evaluate Analyze: to determine the scope and potential outcomes by surveying, collecting info, predicting behavior Plan: describing the response objective, options, emergency decontamination procedure, developing a plan of action including safety considerations Implement: preservation of evidence, initiating an incident command system. Evaluate: by evaluation and communicating the status of the response. The operations level responder would work under who? - HazMat Technician Written guidance or stander operating procedure will state what? - The rules of engagement Under What CFR is DOT? - 49CFR170.199 Under What CFR is OSHA? - 29CFR 1910.1209 Under what CFR is EPA? - 40CFR 311 What are the two primary types of containers? - the ones used for transport and those used for storage What conditions need to be assessed for a thorough survey of the scene? - Topography land use-commercial, residential accessibility - roads, bridges, wooded areas weather conditions bodies of water public exposure potential over head and underground wires and pipe lines storm and sewer drains possible ignition sources adjacent land use - rail lines, highways and airports nature and extent of injuries building information - floor drains and ventilation Ways to verify information obtained from the Survey Hazardous Material Incident - ERG contact Chemtrec contact shippers where can you find additional references to obtain information already received - shipper/owner electronic database other references incident involving criminal or terrorist activity - Secondary events intended to incapacitate or delay emergency responders armed resistance use of weapons booby traps secondary contamination from handling patients possible indicators: vegetation discoloration, sudden onset of casualties, unexplained vapors and odors In the fire protection handbook, the information to be collected is divided into six basic group - material ID info physical property chemical property physical hazards health hazards response information What does collecting the information allows the operations level responder? - determine the defensive options that can be performed safely, given the personnel and equipment available how are haz mat classified? - According to their primary danger and assigned standardized symbols to ID the class/division Class 1 - Explosive Class 1 Major Hazard - Explosion Class 1 Definition - any substance or article, including a device that is designed to function by explosion or that by chemical reaction within itself, is able to function by explosion Division 1.1 - Mass Explosion hazard - mass explosion is one that affects almost the entire load instantly example - black powder, dynamite, TNT Division 1.2 - Projection hazard - but not mass explosion example - aerial flares, detonation cord, power device cartridges Division 1.3 - Fire hazard, minor blast hazard , minor projection hazard, NO mass explosion example - liquid fueled rocket motors, propellant explosive Division 1.4 - Minor explosion hazard (no more than 25 grams of detonating material) example - practice ammo, signal cartridges Division 1.5 - Very insensitive explosive with mass explosion hazard - under normal conditions example - prilled ammonium nitrate fertilizers, fuel oil mix Division 1.6 - Extremely insensitive no mass explosive hazard example: squib device ( small explosive with considerably less explosive power Class 1 placard - orange placard with bursting ball Class 2 - Compressed gas Class 2 Major Hazard - BLEVE What is BLEVE - Boiling Liquid expanding vapor explosion Division 2.1 - Flammable Gas - boiling point of 68F or less and that is ignitable when a mixture of 13% or less by volume with air ex - propane, methyl chloride Division 2.1 placard - red background with white flame Division 2.2 - non flammable, non poisonous gas - ex - carbon dioxide, compressed nitrogen, anhydrous ammonia Division 2.2 placard - Green Bakground, white cilinder what is a cryogenic and what division - refrigerated liquefied gas having a boiling point colder than -130F division 2.2 Division 2.3 - Poisonous Gas - gasses that vaporized easily and that are very dangerous to life, even in small amounts. Is known to be so toxic to humans as to pose a hazard to health during transportation ex - chlorine, methyl bromide, arsine division 2.3 placard - with background, skull and crossbones Class 3 - flammable / combustible liquids Flammable liquid - burns readily, have a flash point of not more than 140F ex - acetone, gasoline, methyl alcohol, toluene combustible liquid - any liquid that does not meet the definition of any other hazard class and that has a flash point above 140F ex - mineral oil, peanut oil, No.6 fuel oil, pine oil, plastic solvent Class 4 - Flammable solid Class 4 Major hazard - rapid combustion that releases mass quantities of smoke Class 4.1 - Flammable solid - desentized explosive, self reactive materials (thermally unstable), readily combustible solids - may cause a fire through friction and any metal ex - magnesium Class 4.2 - Spontaneously Combustible material - pyrophoric material (even in small quantities and without external ignition source, can ignite within 5 minutes after coming in contact with air), self heating material - when in contact with air and without an energy supply is liable to self heat ex- charcoal briquettes Class 4.3 - Dangerous when wet - when in contact with water is liable to become spontaneously flammable or to give off flammable or toxic gas ex - magnesium powder, sodium hydride Class 4.1 placard - red and white stripes, black flame and word flammable solid class 4.2 placard - white top, red bottom with words: spontaneously combustible class 4.3 placard - blue white flame and words dangerous when wet Class 5 - oxidizers and organic peroxide Class 5.1 major hazard - support combustion class 5.2 major hazard - unstable class 5.1 - Oxidizer - material that yielding oxygen cause or enhance combustion in other materials ex - ammonium nitrate, calcium hyphochlorite class 5.2 - organic peroxide - any organic compound containing oxygen in the bivalent structure that may be considered a derivate of hydrogen peroxide Class 5.2 Types - type A - Can detonate or deflagrate rapidly as packaged for transport, forbidden to transport type g, will not detonate, will not do anything is thermaly stable and desensitized. Class 6 - poison class 6 major hazard - toxicity, infectious class 6.1 - poisonous materials - other than gas that its toxic to humans as to afford a hazard to health during transport ex - tear gas, arsenic compund Class 5.1 placard - yellow with flaming O Class 6.2 - infectious substance - materials known to contain a pathogen (microorg that has the potential to cause disease in humans or animals) ex - anthrax, botulism, rabies, tetanus class 6.2 placard - white background skull and crossbones class 7 - radioactivive class 7 major hazard - radioactive burns describe class 7 - any material containing radionuclides, activity greater than 0.002 microcuries per gram ex - cobalt, uranium, yellow cake class 7 placard - yellow top, white bottom. black propeller Class 8 - corrosive class 8 major hazard - burns, emulsification of skin tissue class 8 definition - liquid or solid that causes visible destruction or irreversible alterations in human skin tissue at th site of contact, or a liquid that has severe corrosion rate on steel or aluminum ex - sulfuric acid, nitric acid class 8 placard - white top, black bottom, 2 test tubes and hands class 9 - miscellaneous - material thta present a hazard during transport but not included in another hazard class any material that could cause extreme annoyance to a flight crew member ex - adipic acid, molten sulfur ORM-D - material that presents a limited hazard during transport due to its form, quantity and packaging consumer commodities and small arm amo no placard requried. marine pollutant - adverse effect on aquatic life elevated temperature material - when offer in transport can be: liquid at above 212F, solid at 464F, liquid w/ flashpoint over 100F Dangerous placard - used for mixed loads only Identification numbers a.k.a - Kemler Code - used on placards, 4 digit number, cross reference in ERG, may indicate multiple products Table 1 - this table will placard any quantity table 2 - placard if aggregated gross weight is 1001 lbs, use dangerous when mixed load what is SDS - safety data sheet what is GHS - global harmonization system hazard communication program on post - received by base supply building managers will have SDS in central location fire department will have SDS SDS at fixed facilities - Shipper Chemtrec with the shipment at local emergency planning committees internet type of assistance provided by chemtrec - help emergency service personnel responding to emergencies involving unfamiliar hazardous materials can also notify DOT NRC operates 24/7 If something is on fire what pages of the ERG you use - orange pages mention 3 places to find the manufacturer of the material - chemtrec information on SDS info on shipping papers Type of assistance available w/ respect to criminal or terrorist activities - scene security crime scene preservation evidence collection other LE missions what is the LERP - Local emergency response plan - who contacts who & where As an operator we can preserve evidence, not collect - true Boiling point - temperature when liquid turns into a gas chemical reactivity - susceptibility of material to release energy by itself or in combination with other materials corrosivity - tendency to deteriorate in the presence of another substance or in a particular environment acid - ph value less than 7 (litmus dyes turn red) neutral - ph equal 7 base - ph value above 7 (litmus dyes turn blue) also known as caustic and alkalie range - difference between upper and lower flammability limits Lower explosive limit (LEL) - minimum concentration of vapor to air below which a flame will not propagate in the presence of an ignition source "too lean to burn"