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Fire Alarms level 4 questions and 100%correct answers

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Institution Fire Alarms
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What are the four stages of a fire? - answIncipient smoldering flame heat What are the five classes of a fire? –answ Class A - combustables (wood, paper) Class B - flammable liquids+gas (gasoline, natural gas) Class C - electrical (short ccts, overloaded cables) Class D - combustable metals (sodium, potassium) Class K - cooking fire involving combustions from liquids used in food prepreation What are the 3 components in a fire triangle? - answ heat, fuel, oxygen

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Fire Alarms level 4 questions and
100%correct answers

What are the four stages of a fire? - answ✔✔Incipient
smoldering
flame
heat
What are the five classes of a fire? –answ✔✔
Class A - combustables (wood, paper)
Class B - flammable liquids+gas (gasoline, natural gas)
Class C - electrical (short ccts, overloaded cables)
Class D - combustable metals (sodium, potassium)
Class K - cooking fire involving combustions from liquids used in food
prepreation


What are the 3 components in a fire triangle? - answ✔✔
heat,
fuel,
oxygen


How do you extinguish a fire? – answ✔✔
By smouldering it to remove oxygen

, By diluting the combustable material
By cooling the material below its fire point


What are the conditions of a fire alarm? - answ✔✔
normal,
trouble,
supervisory,
alarm


What are the two types of fire alarm control units? - answ✔✔
single stage,
two stage
Do trouble, alarm and supervisory conditions reset themselves? -
answ✔✔No just trouble, supervisory and alarm need a manual reset


What are the 2 types of smoke detectors? - answ✔✔
ionization
photo-electric


What are the two primary purposes of a fair alarm system? - answ✔✔
To protect lives
to protect property and initiate fire fighting

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