Question 60Safety & Environmental - Assistant Engineer

The correct answer is D) Not Safe for Men - Not Safe for Fire. When the gas or oxygen content in a compartment or space is not within the permissible concentration, and dangerous gases are either present or may be produced by residues, the space would be designated as "Not Safe for Men - Not Safe for Fire" on the marine chemist's certificate. This designation indicates that the space is unsafe for human entry and also poses a fire hazard, requiring appropriate precautions and safety measures to be taken before any work can be performed in that space. The other options are incorrect because they do not accurately reflect the safety concerns in the given scenario. A space that is not safe for men and not safe for fire cannot be designated as "Safe for Men - Safe for Fire" (option A) or "Safe for Men - Not Safe for Fire" (option B). Similarly, a space that is not safe for both men and fire cannot be designated as "Not Safe for Men - Safe for Fire" (option C).