Question 1025 Deck General

The correct answer is A) Open a COW nozzle forward and one aft and drain the line into the after tank by gravity. This is the correct answer because after completing a crude oil wash (COW), the oil remaining in the lines running to the washing machines should be drained by gravity into an appropriate cargo tank. Opening nozzles at the forward and aft ends of the line allows the oil to drain out completely, rather than leaving it primed in the lines. This ensures the system is fully cleared and ready for the next COW operation. The other options are incorrect because blowing out the line with compressed air (B) or pulling suction with the supply pump (C) could potentially cause oil spills or safety issues. Leaving the oil in the lines (D) would not properly clear the system and could lead to contamination issues for the next COW.