Random Flashcards
What’s the main limitation of Level B PPE compared to Level A?
No vapor-tight protection.
What does a breakthrough time indicate in PPE selection?
How long before a chemical passes through the material.
Why is butyl rubber preferred for nerve agent protection?
High resistance to chemical warfare agents.
What’s the primary concern when wearing encapsulated suits in hot environments?
Heat stress.
What type of gloves should be worn when handling cryogenic materials?
Loose-fitting, insulated gloves.
What is the function of a pressure-demand SCBA?
Provides positive pressure to prevent inhalation of contaminants.
What is the main advantage of a PAPR over an APR?
Active air supply reduces breathing resistance.
What level of PPE is required for unknown atmospheric hazards?
Level A.
What is the purpose of an end-of-service-life indicator (ESLI)?
Alerts when a respirator cartridge is no longer effective.
What must be checked before entering a confined space with an SCBA?
Air supply, fit, and communication system.
What is the first priority in emergency decontamination?
Remove the victim from the contaminated area.
What’s the difference between gross and technical decon?
Gross is rapid; technical is thorough.
What’s the risk of using bleach for chemical decon?
Can react with some chemicals to create toxic fumes.
What type of decon is required for radioactive materials?
Wet decon with copious amounts of water to remove contaminants
Technical with metering
Why is dry decon used for powdered contaminants?
Prevents spreading through liquid runoff.
What’s the main reason for using adsorption materials in decon?
Traps hazardous substances in a solid medium.
What’s the primary limitation of using dilution for decon?
Large volumes of contaminated runoff.
What’s the primary concern when using a decon corridor?
Avoiding cross-contamination.
What’s the main decon method for removing petroleum-based contaminants?
Emulsification.
What’s the key factor when setting up a mass decon shower?
High water flow with proper drainage.
What is an IDLH atmosphere?
Immediate danger to life or health.
What’s the difference between a TLV and a PEL?
TLV is advisory; PEL is enforceable by OSHA.
What is a flashpoint?
The lowest temperature at which a liquid produces enough vapor to ignite.
What’s the significance of a substance’s vapor density?
Determines if it will rise or sink in air.