What is Oxygen deficiency?
Direct Answer
Option A: Oxygen less than 21%
Oxygen deficiency is defined as an atmosphere containing less than 21% oxygen by volume, with atmospheres below 19.5% considered immediately dangerous to life. ISGOTT mandates strict procedures for enclosed space entry, requiring continuous monitoring to ensure adequate oxygen levels for personnel safety.
All Options
Detailed Explanation & Context
Oxygen deficiency is defined as an atmosphere containing less than 21% oxygen by volume, with atmospheres below 19.5% considered immediately dangerous to life. ISGOTT mandates strict procedures for enclosed space entry, requiring continuous monitoring to ensure adequate oxygen levels for personnel safety.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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