What type of clear safety warning signs should be placed directly around manholes leading into unventilated void spaces?
Direct Answer
Option A: Breathing apparatus mandatory sign / Confined space danger sign
Enclosed spaces are potentially lethal due to oxygen deficiency or the presence of toxic gases. Mandatory signage (e.g., 'Entry by Permit Only', 'Danger', 'Breathing Apparatus Required') is essential to prevent unauthorized or unprotected entry.
All Options
Detailed Explanation & Context
Enclosed spaces are potentially lethal due to oxygen deficiency or the presence of toxic gases. Mandatory signage (e.g., 'Entry by Permit Only', 'Danger', 'Breathing Apparatus Required') is essential to prevent unauthorized or unprotected entry.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Safety & Social Responsibilities (PSSR).
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