Statements of Fact Quiz V
From the 2012 Revised Coal Mine Rescue Statements of Fact


Progress Indicator:
Question 1 of 25

1.  To detect oxygen __________ atmospheres teams will use an __________ indicator.  (MSHA 3028 p. 2 14)

Choices:
  1. poor, hydrogen
  2. enriched, methane
  3. deficient, oxygen