Engine : Engineering Safety - 322/968
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| A compartment is tested and found to contain 20.8% oxygen by volume, permissible concentrations of toxic materials, and concentrations of flammable gas just below the lower flammable limit. If the residues are not capable of producing toxic materials or flammable concentrations, what would be the designation listed on the marine chemist's certificate? |
| A) Safe for men - Safe for Fire |
| B) Not safe for men - Not Safe for Fire |
| C) Safe for men - Not Safe for Fire |
| D) Not safe for men - Safe for Fire |
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