PA Mining Law VII (referenced)
Practice test questions for the PA Mine Officials' Exam


Progress Indicator:
Question 1 of 20

1.  The concentration of diesel exhaust gasses in the mine atmosphere shall not exceed ________ ppm for nitrogen dioxide.  (Section 419)

Choices:
  1. 3
  2. 5
  3. 10
  4. 30


See more about these products


See the BioPak 240R on the web  External Link Icon Download the BioPak 240R Brochure


  Rescue Contests     Pop Quizzes     Mine Disasters   •  USMRA Membership     Links Library     Training Repository     Contact