Tankers Class Marker Practice Test

Question: 1 / 400

After transferring all dirty ballast to the slop tank, what should be done before discharging through the oily water separator?

The slops should be allowed time to settle

Allowing the slops to settle before discharging them through the oily water separator is crucial for effective separation of oil from water. Settling enables the denser particles, such as sediment or other particulates, to sink to the bottom of the slop tank. This process enhances the performance of the oily water separator by ensuring that only the relatively cleaner water, with the least amount of oil or suspended solids, is sent through for treatment.

If the slops are discharged immediately or without proper settling, the oily water separator may not function effectively, leading to potential violations of environmental regulations due to incompletely treated waste. Heating the slops, while it may help in some situations to reduce viscosity, is not universally necessary and can lead to increased risks if not managed correctly. Mixing the slops thoroughly could also counteract the settling process, reducing separation efficiency. Thus, allowing time for the slops to settle is the most appropriate step to ensure compliance and environmental safety before using the oily water separator.

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The slops should be immediately discharged

The slops should be heated

The slops should be mixed thoroughly

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