CHEMCO Exit Exam • Set 1 Question 10 of 30
What system is used to purge chemical lines and maintain an inert nitrogen cushion over moisture-sensitive cargoes?
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Direct Answer
Option C: Nitrogen padding / inerting system
A nitrogen padding or inerting system is crucial for maintaining a dry, oxygen-free atmosphere. This prevents degradation of moisture-sensitive cargoes and mitigates fire or explosion risks, as recommended by ISGOTT.
All Options
A
Steam lance system
B
Seawater flushing system
C
Nitrogen padding / inerting system
(Correct Answer)
D
Compressed air blower
Detailed Explanation & Context
A nitrogen padding or inerting system is crucial for maintaining a dry, oxygen-free atmosphere. This prevents degradation of moisture-sensitive cargoes and mitigates fire or explosion risks, as recommended by ISGOTT.
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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