Question 22 TK01 - Tank Vessel Assistant - Dangerous Liquids

The Correct Answer is D ### Why Option D ("stop loading") is Correct The primary concern when oil is noticed on the water during fueling operations is immediate pollution mitigation. Every second that the transfer operation continues increases the volume of the spill and the severity of the environmental damage. Therefore, the absolute first action must be to **stop the flow of fuel**. Stopping the loading operation halts the potential source of the leak, whether it is a ruptured hose, an overflow, or a faulty connection. This critical operational step takes immediate precedence over communication or investigation. *** ### Why Other Options Are Incorrect **A) notify the terminal superintendent** While external notification is required in the event of a spill, it is a secondary action. Immediate operational mitigation (stopping the flow) must occur before calling external parties (the terminal superintendent). **B) determine whether your vessel is the source** Investigation is essential, but it cannot be the first step. If the vessel is the source, spending time investigating while fuel is still being pumped will dramatically worsen the spill. The flow must be stopped immediately, and *then* the source can be determined. **C) notify the senior deck officer** Notification to the vessel’s internal chain of command is mandatory for emergency response and reporting. However, the personnel witnessing the spill must execute the critical operational stop (D) before or simultaneously with alerting the senior officer. Operational mitigation is the priority over communication.