TASCO Exit Exam • Set 4 Question 9 of 30
What should you do when the alarm bell on a self-contained breathing apparatus sounds?
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Direct Answer
Option B: Immediately evacuate the contaminated area.
The alarm on a self-contained breathing apparatus (SCBA) signifies the low-pressure warning, indicating the air reserve is nearing depletion. The only safe action is to immediately retreat to a safe, non-contaminated environment.
All Options
A
Move the reserve lever to the 'reserve' position on the regulator and reset the alarm so you can evacuate the area when it sounds again.
B
Immediately evacuate the contaminated area.
(Correct Answer)
C
Open the bypass valve on the regulator and immediately evacuate the contaminated area.
D
Move the tank selector lever to the full tank position and reset the alarm so you can evacuate the area when it sounds again.
Detailed Explanation & Context
The alarm on a self-contained breathing apparatus (SCBA) signifies the low-pressure warning, indicating the air reserve is nearing depletion. The only safe action is to immediately retreat to a safe, non-contaminated environment.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Oil Tanker Cargo Operations (TASCO).
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