Refresher Exit Exam • Set 1 Question 24 of 30
A self-contained air breathing apparatus bottle with 1200 liters of air will last for how many minutes?
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Direct Answer
Option C: 30 minutes
Standard breathing rate is roughly 40 liters/min. A 1200-liter bottle lasts for 30 minutes (1200 / 40 = 30), accounting for standard consumption during fire operations.
All Options
A
25 minutes
B
45 minutes
C
30 minutes
(Correct Answer)
D
20 minutes
Detailed Explanation & Context
Standard breathing rate is roughly 40 liters/min. A 1200-liter bottle lasts for 30 minutes (1200 / 40 = 30), accounting for standard consumption during fire operations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).
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