Firefighters should come back from the area
Direct Answer
Option D: Upon hearing the warning sound from SCBA
The SCBA's low-pressure warning alarm is a critical safety device that triggers when the air cylinder is nearing depletion. Firefighters must immediately withdraw from the hazardous zone upon hearing this signal to ensure they reach safety with a reserve of air.
All Options
Detailed Explanation & Context
The SCBA's low-pressure warning alarm is a critical safety device that triggers when the air cylinder is nearing depletion. Firefighters must immediately withdraw from the hazardous zone upon hearing this signal to ensure they reach safety with a reserve of air.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).
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