Technician Team - BG4 and Industrial Scientific II

Progress Indicator:
Question 1 of 30

1.  Which of the following substance(s) may cause readings of the combustible gas sensor to be lower than actual gas concentrations?

Choices:
  1. Hydrogen
  2. Benzene
  3. Silicone
  4. All of the above
  5. None of the above

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