According to U.S. regulations, if a cargo hose shows a small leak in its fabric, when may it be used to transfer oil?

Correct Answer: Option A — never the hose must be replaced

Per 33 CFR 156.170, any cargo hose showing signs of weakness, bulging, or fabric leaks must be immediately removed from service and replaced. Temporary patches, taping, or wrapping are strictly illegal for damaged oil transfer hoses.