CHEMCO Exit Exam • Set 2 Question 16 of 30

What is the function of a tank washing machine on chemical tankers?

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Direct Answer

Option C: High-pressure rotary water jets to wash chemical residues off bulkheads

Tank washing machines employ high-pressure, rotary water jets. Their function is to effectively remove chemical residues from bulkheads and tank surfaces, ensuring tank cleanliness for subsequent cargoes and compliance with MARPOL Annex II requirements for cargo hold cleanliness.

All Options

Sandblasting

Paint spraying

High-pressure rotary water jets to wash chemical residues off bulkheads (Correct Answer)

Bilge pumping

Detailed Explanation & Context

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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More Questions in CHEMCO Set 2

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Q1 What is the function of inert gas on chemical tankers carrying cargoes with flashpoints below 60°C? Q2 What hazard is associated with Benzene cargo exposure? Q3 What is closed gauging on a chemical tanker? Q4 What chemical condition causes Phenol to solidify at temperatures below 40°C? Q5 How frequently must operational drills and practical checks for regulatory compliance and STCW code requirements be conducted for Advanced Chemical Tanker? Q6 What documented record must be maintained on board following completion of tasks related to regulatory compliance and STCW code requirements in Advanced Chemical Tanker? Q7 What chemical cargo property is defined as the lowest temperature at which liquid emits flammable vapor? Q8 What is the function of a toxic vapor return line during chemical loading? Q9 What is the role of an Inhibitor Certificate for chemical cargoes prone to polymerization? Q10 What type of personal protective suit provides complete gas-tight isolation against fatal chemical atmospheres?