Penna. Mine Officials' Exam Practice Tests
Bituminous Mining Laws - Module 10

Progress Indicator:
Question 1 of 25

1.  Permanently installed ladders higher than ________ feet need backguards if set on an angle exceeding ________ degrees.

Choices:
  1. 10, 80
  2. 20, 75
  3. 20, 80
  4. 10, 60

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