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Porkles Porkles
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6 years ago
Which of the following statements about fire fighting foams is MOST accurate?
 
  A. The majority of fire fighting foams are Class A and Class K.
  B. Class A foam is especially effective on hydrocarbon fuels and polar solvents.
  C. Foam works by forming a blanket of foam on the surface of burning liquid and solid fuels.
  D. Foam works by increasing the surface tension of water, making fire streams more cohesive to reach a greater distance.
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6 years ago
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