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otez555 [7]
3 years ago
8

You need to decide whether to fight a small fire using a portable fire extinguisher. Which situation indicates a small fire for

which it may be appropriate to use a portable fire extinguisher? A. It is difficult to approach the fire because of the heat. B. Smoke is accumulating on the ceiling, but visibility is good. C. Special personal protective equipment is required.
Health
2 answers:
Dominik [7]3 years ago
6 0
A because it is difficult to put it out manually
ioda3 years ago
4 0

Special personal protected equipment is required to fight a small fire using a potable fire extinguisher.

Further Explanation:

Fire is a tetrahedron because four elements are involved to ignite a fire. The four elements are oxygen that supports combustion, heat to raise the ignition temperature of the substance, fuel to encourage the combustion and chemical reaction that occur in middle of three elements.

The fire is classified <u>into five classes</u> are,

1. Class A: It is ignited by <u>ordinary combustible</u> substance such as cloth, wood and paper etc.

2. Class B: Ignition occurs <u>in flammable liquids</u> such as kerosene, petroleum, alcohol and gasoline etc.

3. Class C: This type of fire involved <u>energized electrical equipments</u> such as computer, servers, transformer and motor etc.

4. Class D: Ignited with the help of <u>combustible metal</u> such as magnesium, sodium and zirconium etc.

5. Class K: Fire caused by <u>cooking oil</u> such as vegetable and animal oil.

Fire extinguishers are occur in several form based on fire classification such as,

1. Water and Foam: It helps in extinguishing fire by <u>withdrawing the heating element and by unconnecting the oxygen</u> supply. It is used only for Class A fires.

2. Carbon Dioxide: It extinguishes the fire by <u>removing oxygen</u> supply and by taking away heat with a cold release. It is used for Class B and Class C fires only.

3. Dry Chemical: It extinguishes the fire by <u>creating the wall between oxygen and fuel</u>. It used for Class B and Class C fire.

Learn More:

1. Learn more about meiosis brainly.com/question/1600165

2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165

3. Learn more about human sperm and egg cell brainly.com/question/1626319

Answer Details:

Grade: High School

Subject: Health

Chapter: Fire

Keywords:

Fire, tetrahedron, oxygen, heat, temperature, chemical reaction, combustible. Flammable, equipment, extinguish, fuel.

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