PA Mining Law VIII (referenced)
Practice test questions for the PA Mine Officials' Exam
Progress Indicator:
 
Question 2 of 20
2. A monoammonium ____________ extinguisher is ____________ in fighting Class A, B, and C fires. (MSHA 3028, p. 5 – 7)
Choices:
- foam, best
- phosphate, effective
- chemical, useful
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