Hazardous Materials aw

54 terms by redkey 

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When dealing with a radiological incident involving a leak or spill, what
exposure guidelines should the hazmat first responder use to minimize
radioactive contamination?

Time, distance, shielding

The steps that are taken to preserve the health and safety of emergency
responders and the public during an incident involving releases of
hazardous materials are called:

protective actions.

In using the various clues for detecting the presence of hazardous materials,
the use of __________ would be considered the most dangerous

the sense of smell

The number __________ would be shown in the Flammability Quadrant of the
NFPA 704 System for a material that must be moderately heated before ignition can occur and on which water spray may be used to extinguish a fire.


Which of the following is not required on a pipeline marker?

Apply No Dry Chemical (fire extinguisher discharging chemical onto a fire with a diagonal slash within a circle)

While extinguishing a small fire in an unoccupied house, you discover a lab setup and numerous types of raw materials. There is particularly a large amount of powders. What type of illegal activity might be occurring here?

Explosive manufacturing
pg 75

Cylindrical or box-like cask packaging made of rigid metal that is designed
for performance under hypothetical accident conditions best describes
Type __________ radioactive packaging.

pg 74

The complexity of transport regulations is compounded by several agencies having overlapping responsibilities. All of the following federal agencies are involved in the regulation of hazardous materials and/or wastes except the:

Chemical Transportation Emergency Center (CHEMTREC)
pg 70

If, in using the Emergency Response Guidebook, a first responder discovers the entry for the material in question is highlighted and there is no fire involved, the first responder should go directly to the:

green-bordered section.

The goal of an emergency decon procedure is to:

remove any threatening contamination as quickly as possible.
pg 188,197

The transport container on which you would expect to find a specification plate
is known as a:

cargo tank truck.

The proper cargo tank truck to carry a shipment of sulfuric acid is an:

MC 312/DOT 412.
pg 57

A rail car with a stenciled name on its side is generally a:

dedicated car.

All of the following are shipped in industrial containers which have limited hazard to the public and environment except:

radioactive materials for medical use.

If the type of container located at a facility is a fiberboard drum, the firefighter
should realize that the contents of the package:

poses a minimal health risk.
pg 54

A specialized intermodal tank container which carries refrigerated liquid gases, argon, oxygen, or helium would be an example of:

cryogenic intermodal tanks.
pg 54

The products that IM 101 intermodal portable tanks typically carry are:

flammable liquids.
pg 54

All of the following are examples of materials that are transported in industrial containers except:

natural uranium.

Emergency centers such as __________ are principal agencies providing
immediate technical assistance to an emergency responder.

pg 70

Which of the following exposure values could be repeated a maximum of four times
daily for 15 minutes with a 60-minute rest period between exposures?

pg 85,106

Responders can contact the shipper directly from the emergency contact
number on the:

shipping papers.

At an emergency incident, the firefighter may obtain appropriate MSDS
information from:

pg 70

__________ is the difference between the upper and lower flammable limits of a
gas or vapor.

Flammable (explosive) range
pg 25

The minimum temperature at which a liquid fuel gives off sufficient vapors to form an ignitable mixture with air near its surface is best described as:

flash point.
pg 24

At a hazardous materials emergency, the Operations Section serves the task of:

controlling the tactical portion of the incident.
pg 123-124

Which of the following is not a dispersion pattern created by the release of a
hazardous material?


Most riot control agents are considered to be in DOT hazard class:

pg 35,66

Convulsants are best described as:

poisons that will cause an exposed individual to have seizures.
pg 35

Nerve agents are considered to be part of which UN/DOT hazard class?

pg 34,66

The measurement commonly used by OSHA in evaluating workplace exposure
during an 8 hour period is:


Which of the following statements is true regarding vapor dispersion?

The runoff may need to be contained.

regarding vapor dispersion

Vapor dispersion involves using water spray or fans to intentionally
move vapors away from certain areas.

Which of the following is a type of drum?

Open heads
pg 54

__________ is designed to remove contaminates that pose immediate threat to life.

Emergency decontamination
pg 101

All of the following are protective actions that must be taken during in-place
protection except:

ensuring HVAC System remains operating.

hazardous materials incident evacuation/sheltering-in-place

Sheltering-in-place is a method of safeguarding people in a hazardous
area by keeping them in a safe atmosphere, usually inside structures.

In Level I incidents, the response team should be able to deal with:

a natural gas leak in an occupancy.
pg 126

At a suspected terrorist incident, evidence collection is primarily the responsibility of:

law enforcement.

The first step or most important thing to accomplish upon arrival at a hazardous materials or suspected hazardous materials incident is:

isolation of the area and prevention of entry.
pg 90

At a hazardous materials incident, the safety officer's responsibilities include all of the following except:

being the coordination point between the IC and any assisting agency.

Work uniforms that provide minimal protection best defines EPA
Level __________ protection.


Which of the following is not a physical limitation of personnel working in a positive pressure SCBA?

Height and weight

The hazardous materials PPE ensemble level most commonly used is:

Level B.

What PPE would you use for a material that had a LC50 of 5 mg/kg, had a high vapor pressure and was dermally toxic?

Level A

A vest consisting of a battery or power source, a pump, and an ice/water or cooling agent container where the cooling agent is circulated throughout the garment and operates on the principle of conductive heat transfer is known as a(n) __________ vest.

water cooled

Given an incident involving anhydrous ammonia, the decontamination of crew members through the use of water and soap is known as:


__________ is the controlled burning of a liquid or gas to reduce or control the pressure and/or to dispose of the product.


t or f is Vent and burn is the last option at a Hazardous Materials/WMD scene.


regarding excessive heat disorders

Heat exhaustion occurs because the body is unable to dissipate
excessive heat and becomes overheated.
Heat stroke results from the failure of the temperature-regulating
capacity of the body.

regarding cold stress

When decontamination and doffing of PPE occurs in a cold
environment, the body can cool rapidly.
Wet clothing extracts heat from the body up to 240 times faster
than dry clothing, which can lead to hypothermia.

The chemical action involving the movement of chemicals, on a molecular level, through intact materials best defines:


The eight-step process recommended for assessing a hazardous materials
incident includes:

hazard and risk evaluation.
implementing response objectives.

Heat __________ occurs when the circulatory system begins to fail, resulting in rapid, shallow breathing and cool, clammy skin.

PG 119

The highest level of protection from hazardous chemicals provided by chemical
protective clothing is:

Level A.

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