Question 115Safety & Environmental - Assistant Engineer70% to pass
When tanks have been washed with crude oil, and ballasted without being water rinsed, the ballast is referred to as _______________.
AI Explanation
The correct answer is B) dirty ballast.
When tanks have been washed with crude oil and then ballasted without being water rinsed, the resulting ballast water is considered "dirty ballast" because it is contaminated with the residual oil from the tank washing. This dirty ballast must be handled and disposed of properly to prevent oil pollution.
The other options are incorrect: A) clean ballast refers to ballast that has been properly rinsed and is free of oil contamination; C) segregated ballast is clean ballast that is kept separate from cargo or fuel tanks; and D) dedicated ballast is ballast water that is used solely for stability and is not used for any other purpose.
Related Questions
#113 To avoid excessive electrostatic effect in the crude oil washing process, due to the presence of water in the crude oil washing fluid, the contents of any tank to be used as a source of crude oil for washing must first reduce a portion of the tank contents by a vertical height equal to _______________.#114 Bottom mounted crude oil washing machines are primarily used for _______________.#116 A Crude Oil Wash (COW) system is considered as _______________.#117 Crude oil washing has which of the following disadvantages? #118 Which of the following is a mandatory section of the shipboard oil pollution emergency plan?