2015 Coal First Aid Statements No. 5
Taken from the 2015 National Coal First Aid Contest Rules
Progress Indicator:
 
Question 4 of 20
4. There are _________ nickel cadmium cells in the battery pack of a Zefon Escort ELF® personal dust sampler.
Choices:
- 3
- 4
- 5
- 6
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