Instructions for ‘Preparation for welding or hot work in cargo tanks’ is laid down by the Norwegian Maritime Directorate. During ongoing inspection on work
Direct Answer
Option C: At three levels for at least two places in the tank
Hot work safety standards for enclosed spaces mandate rigorous gas testing across three distinct vertical levels at a minimum of two representative locations inside cargo tanks to ensure thorough hydrocarbon and oxygen verification prior to ignition authorization.
All Options
Detailed Explanation & Context
Hot work safety standards for enclosed spaces mandate rigorous gas testing across three distinct vertical levels at a minimum of two representative locations inside cargo tanks to ensure thorough hydrocarbon and oxygen verification prior to ignition authorization.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Fire Prevention & Fire Fighting (REPFF).
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