Chapter 13:Mission specific product control Flashcards
______actions involving spills are generally defensive in nature.
Control
Defensive spell control tactics they can find hazardous materials include the following
Absorption, adsorption, blanketing/covering, Dam, Dike, diversion, and retention Vapor suppression
Spill control is not restricted to controlling liquids. Responders may also need to confine dust, vapors, and gases with the following.
Protective covering consisting of a fine spray of water A layer of earth Plastic sheets Salvage covers Foam blankets on liquids
Rather than attempting to confine the dispersion, some defensive spill control tactics are diluting the concentration or changing its physical and or chemical properties in that reducing the amount of harm the material causes. These tactics include the following.
Vapor dispersion Ventilation Dispersion Dilution Dissolution Neutralization
________, like a sponge soaking up water, soaks up or retains a liquid hazardous material in some other material.
Absorption
Common absorbents use at a hazmat incident include?
Sawdust Clays Charcoal Polyolefin-type fibers Specially designed absorbent pads, pillows, booms and socks
What is the difference between absorption in adsorption?
Adsorption Differs from absorption in that the molecules of the liquid hazardous materials physically adhere to the adsorbent material rather than being absorbed into it’s in spaces.
For blanketing or covering solids, such as powders and does the following tools are used.
Tarps
Plastic sheeting
Salvage covers
Other the materials including foam
Under what circumstances might blanketing or covering be used?
Personnel perform blanketing or covering to prevent dispersion of hazardous materials.
What is performed to confine or control a hazardous material?
Damming, Dyking, diverting, and retaining
What reduces the omissions of Vapers at a hazmat incident?
Vapor suppression
What directs or influences the course of airborne hazardous materials?
Vaper dispersion
What is performed to control air movement using natural or mechanical means?
Ventilation
What involves breaking up or dispersing a hazardous material that has built on a solid or liquid surface?
Dispersion
What is the application of water to a water soluble material to reduce the hazard?
Dilution
Lee control is often referred to as?
Containment
Normally, personal train below the_______level do not attempt offense of actions such as leak control.
Technician
These tank do not typically have emergency shut off devices.
Corrosive liquid tanks (MC/DOT 312)
Responders should consider many factors and hazardous materials incident with flammable or combustible liquids are present or burning.Responders should consider?
- We are vapors may be present or traveling
- Where and what possible ignition sources are present
- Whether to extinguish the fire in how
Mechanical foam concentrates are divided into two general categories what are they?
- Class A foam (for ordinary combustibles)
* Class B foams (for flammable and combustible liquids)
______concentrates are use for vapor suppression.
Class B foam
What does (AFFF) stand for?
Aqueous Film forming foam
When neutralizing a material, what PH is the goal?
7
_______________ is the time required for one-fourth (25 percent or one quarter)of the total liquid solution to drain from the foam.
Drainage time
Foam quality is measured in terms of 25 percent drainage time and it’s?
Expansion ratio
What method involves applying the foam onto the ground at the edge of the spill and rolling it gently onto the material?
Roll-on application method
If the spills around an obstacle, responders can apply the phone onto the obstacle so the foam will roll down. This is known as the?
Bank down application method
Personnel using the_________ spray the foam in to the air over the target area in a fog data.
Rain down method
