CHEMCO Exit Exam • Set 5 Question 12 of 30
In reference to accidental oil pollution, the most critical time during bunkering is when
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Direct Answer
Option B: hoses are being blown down
Blowing down hoses after bunkering can release residual fuel vapors. If these vapors mix with air and encounter an ignition source, an explosion can occur. This is a critical phase for preventing pollution and fire, as per ISGOTT.
All Options
A
you first start to receive fuel hoses are being disconnected
B
hoses are being blown down
(Correct Answer)
C
final topping off is occurring
D
hoses are being disconnected
Detailed Explanation & Context
Blowing down hoses after bunkering can release residual fuel vapors. If these vapors mix with air and encounter an ignition source, an explosion can occur. This is a critical phase for preventing pollution and fire, as per 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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