OCTCO/OCTF Exit Exam • Set 7 Question 19 of 30
The apparatus consists of double opposed nozzles which rotate slowly about their horizontal and vertical axis and project two streams of water through all possible angles against all inside surfaces of the space being cleaned.
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Direct Answer
Option B: Butterworth tank cleaning machine
The Butterworth tank cleaning machine consists of dual or multiple rotating nozzles driven by water pressure that revolve through vertical and horizontal planes to wash all internal tank bulkheads.
All Options
A
Crude oil washing machines
B
Butterworth tank cleaning machine
(Correct Answer)
C
Manually operated deck tube nozzle machine
D
All of the above (A) (B) (C) or combinations of attachment
Detailed Explanation & Context
The Butterworth tank cleaning machine consists of dual or multiple rotating nozzles driven by water pressure that revolve through vertical and horizontal planes to wash all internal tank bulkheads.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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