TASCO Exit Exam • Set 6 Question 4 of 30
Bottom washing:
✓
Direct Answer
Option C: is done to remove traces of the previous cargo
Bottom washing is a specific tank cleaning procedure focused on the lowest part of the tank to remove sediment and traces of the previous cargo, particularly important when switching to a different cargo grade.
All Options
A
is not effective when carrying a small quantity of refined products
B
will remove heavy wax sediments at the tank bottom
C
is done to remove traces of the previous cargo
(Correct Answer)
D
cannot be done with chemical solvents
Detailed Explanation & Context
Bottom washing is a specific tank cleaning procedure focused on the lowest part of the tank to remove sediment and traces of the previous cargo, particularly important when switching to a different cargo grade.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Oil Tanker Cargo Operations (TASCO).
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