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hayfay hayfay
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6 years ago
What happens as soon as the heat-detection device of a foam-water system senses the presence of fire?
 
  A. Air is introduced to make foam.
  B. Foam is delivered to the target area.
  C. The foam-water solution flows to sprinklers.
  D. The system triggers the deluge valve and activates.
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6 years ago
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