1. How do you get help from police, fire fighters or ambulances, etc? ______________________________________________________________________ 2. Match the three classes of fires below: Class A
Class B
Class C
Ignition
Air
Fuel
3. How is a fuse different than a circuit breaker? ______________________________________________________________________ ______________________________________________________________________ 4. What do you do when a fuse blows? ______________________________________________________________________ 5. What do you do when a circuit breaker trips? ______________________________________________________________________ 6. Where should you store medicines? Why? ______________________________________________________________________ 7. Where should you store cleaning aids? Why? ______________________________________________________________________
Fire Safety, Part 2: Putting Out Fires
Types of Fire Extinguishers Fire extinguishers are categorized according to the substances that they contain and by class of fire. Extinguishers are rated for use against only certain kinds of fires, and will carry an ABCD marking to indicate the classes of fire against which they may properly be used. For example, an extinguisher rated for class B and C fires is called (and marked) a type BC extinguisher. A fire extinguisher should never be used on a class of fire for which it is not rated -- see notes following the table. Classes of Fire Type
Mechanism
Effective Range
Discharge Duration A
water
reduces temperature
30-40 ft
60 sec
CO2
displaces oxygen
3-8 ft
8-30 sec
dry chemical binds oxygen
5-20 ft
10-40 sec
halon
binds oxygen
4-10 ft
8-24 sec
Met-L-X
smothers
See Note 4
NA
B
C 1
2
D 1
1
3
Extinguisher rated for this type of fire Extinguisher not rated for this type of fire
Discharge Type
Mechanism
water CO2 Dry chemical halon Met-L-X
Effective Range 30-40 ft
Classes of Fire
Duration
A
B
C
D
Reduces temperature displaces 3-8 ft oxygen binds oxygen 5-20 ft
60 sec
Y
N
N
N
8-30 sec
N
Y
Y
N
10-40 sec
Y
Y
Y
N
binds oxygen 4-10 ft
8-24 sec
N
Y
Y
N
smothers
NA
N
N
N
Y
see note 4
Y => extinguisher rated for this type of fire N => extinguisher not rated for this type of fire
Notes: 1. Fire extinguishers should never be used on classes of fires for which they are not rated. In some cases (eg. water used on a Class D fire), the extinguisher can actually make the fire worse! 2. Never use water on a class C fire -- shock hazard. 3. Some dry-chemical extinguishers are rated BC, others are rated ABC. Those rated BC contain sodium or potassium bicarbonate; those rated ABC contain ammonium phosphate. 4. Extinguishing agents for class D fires are usually applied with a scoop or shovel.
Fire Extinguisher Operation The information given here describes how a fire extinguisher should be used to fight a fire. However, do not believe, because you have read this, that you know how to use a fire extinguisher! If you really want to learn how to use a fire extinguisher properly (and you should), you should seek out a hands-on training class in which you will have the opportunity to put out some real fires using portable extinguishers. To remember how to use a fire extinguisher, think of putting out the fire as a test you must PASS.
P Pull the locking pin. A Aim the nozzle at the base of the fire. S Squeeze the trigger all the way closed. S Sweep the extinguisher discharge side to side over the area of the fire. 8. For each type of extinguisher, note the fire classes it can extinguish. Extinguisher Type
Extinguisher Type
Water
Halon
A
BC CO2
Dry Chemical
BC
ABC
9. List four fire hazards (places fires could likely start) in your home. a. ______________________________________________________________________ b. ______________________________________________________________________ c. ______________________________________________________________________ d. ______________________________________________________________________ 10. Where should you store flammable liquids? Why? ______________________________________________________________________ 11. How do you avoid Carbon Monoxide poisoning? ______________________________________________________________________ 12. How do you treat Carbon Monoxide poisoning? ______________________________________________________________________ 13. Draw a line to match the symbol with the correct danger. Then draw a line to match the symbol with the correct product examples.
Symbol
The Danger
Product Examples
This container can explode if it's heated or punctured. Flying pieces of metal or plastic can cause serious injuries, especially to the eyes.
•
water repellant for shoes or boots in an aerosol container
•
spray paint in an aerosol container
This product will burn skin or eyes on contact, or throat and stomach if swallowed.
•
windshield washer fluid
•
furniture polish
This product, or its fumes, will catch fire easily if it's near heat, flames or sparks.
•
Contact adhesives
•
gasoline
Licking, eating, drinking, or sometimes smelling, this product will cause illness or death.
•
toilet bowl cleaner
•
oven cleaner
14. Below make a plan for evacuation from the church if a fire were to start. Note on your drawing extinguishers with a circle and alarms with an X.
15. Identify the following common poisonous plans in our area. Summarize the symptoms of each. Describe how to treat the symptoms. Name/description Amaryllis (Amaryllis belladonna) is an ornamental plant commonly sold for its winter flowers. Ingesting the bulbs has poisoned humans. American elder (Sambucus canadensis) is a native shrub found in the moist soils of swamps and along rivers and lakes in eastern Canada. Children were poisoned after using the hollow stems for whistles. Ingesting uncooked berries may cause nausea.
American holly (Ilex opaca) is an ornamental shrub that provides glossy green leaves and red berries used in Christmas decorations. Ingested berries have been implicated in cases of poisoning of children. The symptoms included vomiting and diarrhea.
Picture
Symptoms
Treatment
American mistletoe (Phoradendron flavescens) Ingesting a large number of the berries or tea made from the berries has led to poisoning and death in humans. Mistletoe, used as decorations at Christmas, should be kept out of the reach of children and family pets. Canada nettle (Laportea canadensis) is found in moist woods and along streams. This plant has stinging hairs on the leaves and stem that readily penetrate thinskinned areas on humans. The tips of the hairs break off, allowing the contained liquid to penetrate the body. Intense localized itching results. Applying water to the surface of the affected area can increase the sensation; this problem may persist for several weeks. Three Canadian plants contain a poisonous sap that is the causative agent of Rhusdermatitis, the most widespread skin disorder affecting Canadians. The three poisonous plants are poison ivy (Rhus radicans L.), western poison oak (Rhus diversiloba T. & G.), and poison sumac (Rhus vernix L.). Poison ivy is the most common and widespread plant of the three.