Heartsaver First Aid Part I

Progress Indicator:
Question 4 of 22

4.  The mine foreman shall:

Choices:
  1. devote the whole of his time in the performance of his duties.
  2. keep careful watch over the ventilation of the outby area of the mine.
  3. see that a sufficient amount of air pass through the last open cross cut.
  4. all of the above


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