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Physical Science Review 6.4

Test Description: Fire and Fire Safety

Instructions: Answer all questions to get your test result.

1) What is the chemical equation of combustion?

Afuel + carbon dioxide → oxygen + water Bcarbon dioxide + oxygen → fuel + water Cfuel + water → carbon dioxide + oxygen Dfuel + oxygen → carbon dioxide + water

2) Which of the following is incorrect

Afuel and oxygen can react on their own Bfuel can be wood Cnone of the choices Doxygen makes up 20% of the air

3) What things are required to start and maintain a fire?

Afuel, oxygen, and heat Bfuel and heat Cfuel and oxygen Doxygen and heat

4) What provides the activation energy for a fire to start

Acarbon dioxide Boxygen Cfuel Dheat

5) Which of the following cannot control a fire

Aadding carbon dioxide Badding baking soda Cadding oxygen Dadding water

6) Most home fires result from

Acooking Belectrical wires Cheaters Dcigarettes

7) What will not be effective in fighting a small fire?

Ablowing on it Bfire extinguisher Cfire blanket Dfuel

8) Why is water so effective at putting out fires?

Ait requires large amounts of heat to change state and covers fuel Bit requires large amounts of heat to change state and traps carbon dioxide Cit requires small amounts of heat to change state and traps carbon dioxide Dit requires small amounts of heat to change state and covers fuel

9) ________________ is a material that releases energy when it burns

Areactant Bfuel Cbaking soda Dproduct

10) What is oxygen's role in the fire triangle?

AWhen heated, it sinks making more space for a fresh supply to come in BWhen heated, it rises making less space for a fresh supply to come in CWhen heated, it rises making more space for a fresh supply to come in DWhen heated, it sinks making less space for a fresh supply to come in

*select an answer for all questions

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