Types of Fires : How To Save Ourselves From a Big Lose ? Types of Fire Extinguishers !! My Second Episode! Today a Quiz on Fire Extinguisher is included

Types of Fires :

Not all fires are the same. Per NFPA 10, burning may be classified into one or more of the following fire classes and your fire protection specialist will select the right fire extinguisher size and agent for the hazard.

Class A

Class A fires are fires in ordinary combustibles such as wood, paper, cloth, rubber, and many plastics.

Class B

Class B fires are fires in flammable liquids such as gasoline, petroleum greases, tars, oils, oil-based paints, solvents, alcohols. Class B fires also include flammable gases such as propane and butane. Class B fires do not include fires involving cooking oils and grease.

Class C

Class C fires are fires involving energized electical equipment such as computers, servers, motors, transformers, and appliances. Remove the power and the Class C fire becomes one of the other classes of fire.

Class D

Class D fires are fires in combustible metals such as magnesium, titanium, zirconium, sodium, lithium, and potassium.

Class K

Class K fires are fires in cooking oils and greases such as animal and vegetable fats.

Some types of fire extinguishing agents can be used on more than one class of fire. Others have warnings where it would be dangerous for the operator to use on a particular fire extinguishing agent.

Fire Extinguisher Use
It is important to know the locations and the types of extinguishers in your workplace prior to actually using one.
Fire extinguishers can be heavy, so it's a good idea to practice picking up and holding an extinguisher to get an idea of the weight and feel.

Take time to read the operating instructions and warnings found on the fire extinguisher label. Not all fire extinguishers look alike.

Practice releasing the discharge hose or horn and aiming it at the base of an imagined fire. Do not pull the pin or squeeze the lever. This will break the extinguisher seal and cause it to lose pressure.

When it is time to use the extinguisher on a fire, just remember PASS!

Pull the pin.

Aim the nozzle or hose at the base of the fire from the recommended safe distance.

Squeeze the operating lever to discharge the fire extinguishing agent.

Starting at the recommended distance, Sweep the nozzle or hose from side to side until the fire is out. Move forward or around the fire area as the fire diminishes. Watch the area in case of re-ignition.

Watch our video on “How to use a Fire Extinguisher” for more information and a visual demonstration.

Fire Extinguisher Inspection
Like any mechanical device, fire extinguishers must be maintained on a regular basis to ensure their proper operation. You, the owner or occupant of the property where the fire extinguishers are located, are responsible for arranging your fire extinguishers' maintenance.

Fire extinguishers must be inspected or given a "quick check" every 30 days. For most extinguishers, this is a job that you can easily do by locating the extinguishers in your workplace and answering the three questions below.

Is the extinguisher in the correct location?
Is it visible and accessible?
Does the gauge or pressure indicator show the correct pressure?

Fire Extinguisher Maintenance
In addition, fire extinguishers must be maintained annually in accordance with local, state, and national codes and regulations. This is a thorough examination of the fire extinguisher's mechanical parts, fire extinguishing agent, and the expellent gas. Your fire equipment professional is the ideal person to perform the annual maintenance because they have the appropriate servicing manuals, tools, recharge materials, parts, lubricants, and the necessary training and experience.

Fire Extinguisher Quiz:

Now it's time to see how much you've learned. Answer the following true or false questions to test your knowledge.

1. The four elements that must be present for fire to exist include heat, oxygen, fuel, and a chemical reaction between the three.
   True
   False
2. The concept of fire prevention is to keep these elements separate.
   True
   False
3. There are four classes of fire, Class A, B, C, and K.
   True
   False
4. Class B fires are those fires that occur involving paper and wood.
   True
   False
5. Multipurpose dry chemical extinguishers are effective on all classes except D and K fires.
   True
   False
6. To remember the rules of fighting fires, just remember the three A's: Activate, Assist, and Attempt.
   True
   False
7. The four simple steps for operating a fire extinguisher can be remembered with the word PASS. Pull, Activate, Squeeze, Sweep.
   True
   False
8. After the fire has been extinguished, it is important to watch the site for re-ignition.
   True
   False
9. Fire extinguishers must be inspected or checked every 60 days.
   True
   False
10. According to local, state and national codes and regulations, fire extinguishers must be maintained bi-annually.
    True
    False

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