HA&O
Corrosives can be broken down into:
Acids and bases
In which process is a material used to soak up and hold a liquid hazardous material like a sponge holds water?
Absorption
Which term describes when a chemical passes thru material on a molecular level?
Permeation
On which type of hazardous materials incident should early responders establish a plan for decontamination?
On all incidents
The LC50 applies to materials in the ______ state
Gaseous
After the initial training requirements, what is the OSHA requirement for refresher training?
Annually
The definition of hazardous material in NFPA-472, "Standard for competence of responders to Hazardous Materials/Weapons of Mass Destruction Incidents," includes the criminal use of hazardous materials such as weapons of mass destruction (WMD). This definition includes all of the following except:
The environment
The military hazardous materials/WMD marking system is based on _________ hazards.
Detonation and fire
What does it mean if a substance's vapor density is 2.3?
It will sink in the air
You have dug a shallow pit to collect and hold a hazardous liquid. Which control tactic is this?
Retention
An EPA level ________ chemical-protective suit is one that is designed to protect the wearer from gases, vapors and liquids.
B
What is a proximity suit designed for?
Limited exposures to high temperatures
The majority of chemical-protective clothing is:
Designed to be disposed of after a single use
Which item will be needed to build a dam in a flowing stream that is contaminated with a hazardous liquid?
Plastic sheeting
Relocation of people who are threatened by a potential hazard is called:
Evacuation
How is the flammable range related to the relative danger of the substance?
The wider the range the more dangerous the substance is
Signs that a chemical protective clothing is undergoing the process of ___________ include discoloration, charring, swelling and shrinking.
Degradation
Which is a confinement tactic?
Righting an overturned container
When people are being sheltered-in-place, what should be done with the ventilation?
It should be turned off
Which type of railcar design should a fire fighter be able to identify?
Special issue
When a chemical change occurs the event is usually accompanied by:
The release of some form of energy
What does the yellow diamond on the NFPA 704 symbol indicate?
Reactivity
What is the DOT hazard class for toxic substances?
6
What is the first priority on any hazmat scene?
Safety of responders
A minimum of _________ personnel are necessary to perform work in the hot zone.
4