Question 1391 Deck General

The correct answer is D) The slops should be allowed time to settle. The reasoning behind this is that before discharging oily water through the oily water separator, the slops (dirty ballast) in the slop tank need to be allowed to settle. This allows the oil to separate from the water, enabling the oily water separator to more effectively remove the oil content before discharge. Allowing the slops to settle is a necessary step to ensure compliance with pollution control regulations before the discharge can take place. The other options are incorrect because: A) Crude oil washing the dirty ballast tank is not a step in the process of discharging oily water, B) Ballasting the clean tanks is not relevant to the pollution control procedure, and C) Adding chemicals to emulsify the oil would not be the appropriate action prior to discharge through the oily water separator.