Ventilation No. 3
Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition)


Progress Indicator:
Question 3 of 20

3.  How much of something else in the air will drop the oxygen level by one percent? p. 528

Choices:
  1. 25,000ppm
  2. 10,000ppm
  3. 50,000ppm
  4. 30,000ppm


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