Question 96Safety & Environmental - Assistant Engineer70% to pass
Water ballast placed in a tank that has been crude oil washed, but not water rinsed, shall be regarded as _______________.
AI Explanation
The correct answer is C) dirty ballast.
Water ballast placed in a tank that has been crude oil washed, but not water rinsed, shall be regarded as dirty ballast. This is because the tank has not been adequately cleaned to remove all traces of the crude oil, and the water ballast will become contaminated with the remaining oil residues. Dirty ballast must be handled and disposed of as oily waste, in accordance with pollution prevention regulations.
The other options are incorrect because: A) the ballast is not the crude oil itself, B) segregated ballast refers to ballast in dedicated tanks that are kept separate from cargo or fuel oil tanks, and D) the ballast cannot be considered clean since the tank has not been properly rinsed.
Related Questions
#94 Which of the following pressures represents the normal pressure setting of a pressure- vacuum relief valve as normally found on tank vessels? #95 To prevent oil from escaping into the sea when ballasting through the cargo piping system, you should FIRST _______________.#97 When discharging clean ballast, prior to entering the loading port, if the ballast is determined by the oil monitor to exceed 15 parts per million of oil, the deballasting must _______________.#98 After ballasting a fuel tank, which of the listed valves should you close FIRST? #100 The term "load on top" is the name of a method used on many crude oil carriers for the purpose of _______________.