Scum blowing of boiler is meant for draining the boiler water from
Direct Answer
Option B: top
Scum blowing removes concentrated impurities and sludge that accumulate at the water surface. Draining from the top prevents these contaminants from circulating back into the boiler water, maintaining water quality as per standard boiler maintenance procedures.
All Options
Detailed Explanation & Context
Scum blowing removes concentrated impurities and sludge that accumulate at the water surface. Draining from the top prevents these contaminants from circulating back into the boiler water, maintaining water quality as per standard boiler maintenance procedures.
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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