Mine Law - 30 CFR, Part 77
Sample test questions for Underground Mine Electrical Certification


Progress Indicator:
Question 1 of 5

1.  Where high voltage power lines are installed over driveways, haulage ways and railroad tracks they must be installed a minimum of:

Choices:
  1. 30 feet above ground
  2. 15 feet above ground
  3. 50 feet above ground
  4. 100 feet above ground


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