Bell Work

1
Bell Work

• What three components are needed to start a fire
  or keep it going? Why?

2
Area Agricultural Mechanics Unit Lab Safety

• Lesson 2. Applying Fire Safety Practices

3
Objectives

• Interpret the 3 components of the Fire Triangle
• Compare the 4 classifications of fires
• Decide which fire extinguisher to use for various
  fires
• Summarize how to use a fire extinguisher

4
What are the components of a Fire?

• Enough Oxygen to sustain Combustion
• Enough Heat to raise the material to its
  ignition temperature
• Fuel or Combustible material
• Chemical Reaction
• Exothermic Reaction

5
Describe the classifications of fires or fuels

• Class A Ordinary Combustibles
• Wood, paper, trash
• Class B Flammable Liquids
• Fuels, grease, paints, gasoline, oil, and other
  fuels
• Not in the present of electricity

• Class C Electrical Equipment
• Cass C fires in the present of electricity
  plugged in
• Class D Combustible Metals
• Metals that burn
• Very difficult to extinguish

6
Group Activity
7
How do you use a fire extinguisher?

• Remember PASS
• Pull the Pin
• Aim at the base of the fire Fuel

8
More PASS
9
When do you and do you not fight a fire?

• Do not try if
• You do not know what is burring
• It is spreading fast and well past the beginning
  stages
• You do not have adequate or appropriate equipment
• You might inhale toxic smoke
• Your instincts tell you not to
• Always position yourself with an exit or means of
  escaping

10
Fire Safety Quiz
11
Summary

• What three components are needed to start a fire
  or keep it going?
• What type of fire extinguisher do we use in the
  shop? Why?
• How does one operate a fire extinguisher?