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Fire Triangle.pptx
1. Directions: Identify the following
statements if itโs TRUE or FALSE
based on the underlined
word/phrase.
โข1. Fire is a chemical
reaction of oxygen and
other substances that
gives out light, heat,
and smoke.
2. Directions: Identify the following
statements if itโs TRUE or FALSE
based on the underlined
word/phrase.
โข2. Oxygen is one
of the ingredients
for fire to start
and continue.
3. Directions: Identify the following
statements if itโs TRUE or FALSE
based on the underlined
word/phrase.
โข3. Smoke is one of
the components of
the Fire Triangle
together with Heat
and Fuel.
4. Directions: Identify the following
statements if itโs TRUE or FALSE
based on the underlined
word/phrase.
โข4. Sun is one of
the natural
sources of
heat.
5. Directions: Identify the following
statements if itโs TRUE or FALSE
based on the underlined
word/phrase.
โข5. Gas may be a
flammable material
considered to be as
heat in the fire
triangle.
7. FIRE
โขis a state of
combustion in which
fuel or other
materials is ignited
and combined with
oxygen, giving off
light, heat, and flame.
8. FIRE
โขfire is the only event that is
both beneficial to man and
his environment as well as
destructive and deadly.
Fire is beneficial when
controlled but is very
destructive and deadly if
not.
9. You are only going to see fires in two
places โ indoors and outdoors
Outdoor fires are
forest fire or
wildfire
indoor fires are
building fires
and/or housefires.
10. Major causes of fire range
electrical neglects or accidents,
smoking,
kitchen accidents,
neglected heating equipment,
hazardous goods such as paints and adhesives, and
even man-made causes of fire such as Arson
13. The FIRE TRIANGLE
โขA Fire Triangle is a simplified version
of the fire tetrahedron.
โขA Fire Triangle is a model used as a
visual that reminds us of the
important ingredients or elements
required to initiate and sustain fire
namely; Heat, Fuel, and Oxygen.
Combine these elements and you
can create fire.
17. Convection
โข involves the flow of liquids & gases
in the transfer of heat. When
heated, liquidsโ and gasesโ
molecules expand. As a result, since
they have a lower density, it floats
โข Upon cooling, they eventually fall
and become displaced
subsequently heated liquids and
gases.
โข This cycle creates a current of hot
air called a Convection Current
which can heat combustible
materials in its surroundings easily
18. Radiation
โขis a manner of heat
transfer in a vacuum
or without a need
for any medium. An
example of this is the
heat coming from
the Sun.
19. Fuel
โขis any substance whether solid,
liquid, or gas which will burn is
termed as fuel.
โขSolids such as ordinary solid
materials such as woods, dried
leaves, etc. Liquids such as
paints. And lastly, any
flammable gases such as
butane.
20. Oxygen or oxidizing
agents
โขwhich acts as the main
element for the
combustion reaction to
occur. Air contains about
21% oxygen, and most fires
require at least 16% oxygen
content to start ignition
21. โขThe three (3) ingredients
must be combined in the
right proportion for a fire
to occur.
โข If any of the three (3)
ingredients are removed,
such as if a fire runs out of
fuel, the fire will be
extinguished
22. ACTIVITY #1: THE FIRE TRIANGLE
Directions: Label the
diagram below
completing the fire
triangle. After labeling,
observe the materials in
your surroundings, the
materials inside and
outside your house.
List objects that can be
considered as FUEL,
SOURCE OF HEAT, and
an OXIDIZING AGENT
for a fire to happen. List
these objects in its
corresponding part of
the Fire Triangle
23.
24. ACTIVITY #2:
FIRE
SCENARIO
โขLast February 20, 2018, a
warehouse and about 40
houses were hit by a fire in
Jennyโs Ave. Barangay
Rosario, Pasig City. According
to the report, at least 4
victims were injured and
brought to the hospital for
treatment.
25.
26.
27. ACTIVITY #3: ESSAY
WRITING
โข Directions: Using the picture
below, in a paragraph
consisting of 5 โ 10 sentences,
identify and explain the
possible ingredients/elements
of fire. Think and discuss also
the possible ways on how we
can put out the different
ingredients of fire.
28. โขWhen and how can we
say that the materials in
our house are
combustible or
flammable?
โขHow can we prevent our
house to be caught on
fire?
29. Sources of Fire
Hazards
โขFire and combustion have
been defined in various
ways.
โขCombustion represents
a self-sustaining run of
reactions consisting of
physical and chemical
transformations.
30. Combustion
โข is a chemical process in which
a substance reacts rapidly with
oxygen and gives off heat.
โขThe original substance is called
the fuel, and the source of oxygen
is called the oxidizer.
โขThe fuel can be a solid, liquid, or
gas, although for airplane
propulsion the fuel is usually a
liquid.
32. The Bureau
of Fire
Protection
Operational
Procedures
Manual has
listed down
the causes of
fire as
follows:
โข Faulty electrical wiring or connection
โข LPG-related
โข Neglected cooking or stove
โข Cigarette butt
โข Unattended open flame: torch or sulo
โข Unattended open flame: candle or gasera
โข Matchstick or lighter
33. The Bureau
of Fire
Protection
Operational
Procedures
Manual has
listed down
the causes of
fire as
follows:
Direct flame contact or static electricity
โข Neglected electrical appliances or device
โข Electrical machinery
โข Chemicals
โข Incendiary device or ignited flammable liquid
โข Spontaneous combustion
โข Pyrotechnics
36. 1. Stage One โ
Ignition (Incipient)
The incipient
stage is when
itโs crucial to
fight a fire
because it is
easiest to
suppress it at
this point,
Fire
suppression
systems allow
you to
suppress the
fire right after
ignition
without
needing a
person to be
present.
37. 2. Stage Two โ
Growth
Once a fire reaches this stage, it becomes
harder to control. If a fire detector
recognizes a fire at this point, you have
little time to put it out before it reaches
flashover.
FlashoverโThis means there is a sudden
ignition of everything combustible in a
contained area. Temperatures can rise to
1,000 degrees Fahrenheit in just a few
seconds. Humans are not likely to survive
in a compartment that has a flashover.
38. 3. Stage Three
โ Fully
Developed
โขA fully developed fire
is the hardest to
suppress because, at
this point, the fire is at
maximum
temperatures and
causing the most heat
damage.
39. 4. Stage Four
โ Decay
โขThe decay of a fire is the
phase when the fire
decreases in intensity
until it is either a
smolder or non-existent.
If there was no
suppression, this is likely
when there is nothing
left for the fire to burn.
40. Directions:
Tell the
stage/s of
fire that is
being
described
1. Smoke and heat are
produced.
2. Oxygen supply = 21%
3. Also known as incipient
4. Temperatures reach
between 640ยฐ to 870ยฐ
41. Directions:
Tell the
stage/s of
fire that is
being
described
5. Highly dangerous flashovers
may occur anytime.
6. Also known as free burning
phase
7. Hottest phase of a fire
42. Directions:
Tell the
stage/s of
fire that is
being
described
8. Fire is now dependent on
the amount of oxygen.
9. Fire starts to diminish as fuel
and/or oxygen is consumed
10. Backdraft could potentially
occur.