Penna. Mine Officials' Exam Practice Tests
Gas Detection & Ventilation - Module 2

Progress Indicator:
Question 1 of 25

1.  Nitrogen gas can be detected by:

Choices:
  1. Its distinct odor
  2. Electronic detectors
  3. Flame safety lamps
  4. C, plus chemical analysis

Need Help?
Here's a gas chart

Back to Pop Quiz List