Fire Fighter Tools and Equipment No. 2
Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition)


Progress Indicator:
Question 2 of 15

2.  Methane is most explosive at what range?

Choices:
  1. 5% to 15% with at least 12.1% oxygen
  2. 9.5% to 12.5% with at least 12.1% oxygen
  3. 5% to 10%
  4. 9.5% to 10%


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