Question 223Safety & Environmental - Assistant Engineer
70% to passWhich of the devices listed would be safe to use in a compartment with insufficient oxygen?
AWet handkerchief.
BSelf-contained breathing apparatus.
CDust or gas mask.
DCanister type mask.
AI Explanation
The correct answer is B) Self-contained breathing apparatus. A self-contained breathing apparatus (SCBA) is the only safe option listed for use in a compartment with insufficient oxygen. SCBA units provide a completely independent air supply, allowing the user to breathe safely in low-oxygen environments. The other options, such as a wet handkerchief, dust/gas mask, or canister-type mask, do not provide a self-contained air source and would not be adequate for use in a low-oxygen compartment, as they can only filter the surrounding air, which may be depleted of oxygen.
Related Questions
Q334:The advantage of using a dry chemical fire extinguishing agent is ______________... Q224:A fire can be extinguished by removing _______________. Q21:When fighting a liquefied natural gas fire, you should _______________. Q287:Coast Guard Regulations Q142:The distance between the bottom of the hull and the waterline is called ________...
Ready to test your knowledge?
Take a Safety & Environmental - Assistant Engineer Practice ExamOfficial Resources