dreag6081 dreag6081
  • 03-09-2017
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What causes a fire sprinkler to activate? *?

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bdowd557
bdowd557 bdowd557
  • 03-09-2017
smoke, i'm pretty sure
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alex347 alex347
  • 04-09-2017
smoke mostly but the heat can be detect on the new modern ones
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